kernel/linux
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-10-22 19:14:51 +00:00
Code Issues Releases Packages Activity
1,335,140 commits 117 branches 5,803 tags 5.7 GiB
Commit graph

162,630 commits

Author SHA1 Message Date
Antoine Tenart
b7ecc1de51 net-sysfs: move queue attribute groups outside the default groups 
Rx/tx queues embed their own kobject for registering their per-queue
sysfs files. The issue is they're using the kobject default groups for
this and entirely rely on the kobject refcounting for releasing their
sysfs paths.

In order to remove rtnl_trylock calls we need sysfs files not to rely on
their associated kobject refcounting for their release. Thus we here
move queues sysfs files from the kobject default groups to their own
groups which can be removed separately.

Signed-off-by: Antoine Tenart <atenart@kernel.org>
Link: https://patch.msgid.link/20250204170314.146022-3-atenart@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2025-02-05 17:49:08 -08:00
Antoine Tenart
79c61899b5 net-sysfs: remove rtnl_trylock from device attributes 
There is an ABBA deadlock between net device unregistration and sysfs
files being accessed[1][2]. To prevent this from happening all paths
taking the rtnl lock after the sysfs one (actually kn->active refcount)
use rtnl_trylock and return early (using restart_syscall)[3], which can
make syscalls to spin for a long time when there is contention on the
rtnl lock[4].

There are not many possibilities to improve the above:
- Rework the entire net/ locking logic.
- Invert two locks in one of the paths — not possible.

But here it's actually possible to drop one of the locks safely: the
kernfs_node refcount. More details in the code itself, which comes with
lots of comments.

Note that we check the device is alive in the added sysfs_rtnl_lock
helper to disallow sysfs operations to run after device dismantle has
started. This also help keeping the same behavior as before. Because of
this calls to dev_isalive in sysfs ops were removed.

[1] https://lore.kernel.org/netdev/49A4D5D5.5090602@trash.net/
[2] https://lore.kernel.org/netdev/m14oyhis31.fsf@fess.ebiederm.org/
[3] https://lore.kernel.org/netdev/20090226084924.16cb3e08@nehalam/
[4] https://lore.kernel.org/all/20210928125500.167943-1-atenart@kernel.org/T/

Signed-off-by: Antoine Tenart <atenart@kernel.org>
Link: https://patch.msgid.link/20250204170314.146022-2-atenart@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2025-02-05 17:49:07 -08:00
Dr. David Alan Gilbert
2cf424f5ac mlx4: Remove unused functions 
The last use of mlx4_find_cached_mac() was removed in 2014 by
commit 2f5bb47368 ("mlx4: Add ref counting to port MAC table for RoCE")

mlx4_zone_free_entries() was added in 2014 by
commit 7a89399ffa ("net/mlx4: Add mlx4_bitmap zone allocator")
but hasn't been used. (The _unique version is used)

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Link: https://patch.msgid.link/20250203185229.204279-1-linux@treblig.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2025-02-04 14:05:07 -08:00
Linus Torvalds
c2933b2bef First batch of fixes for 6.14. Nothing really stands out, 
but as usual there's a slight concentration of fixes for issues
 added in the last two weeks before the MW, and driver bugs
 from 6.13 which tend to get discovered upon wider distribution.
 
 Including fixes from IPSec, netfilter and Bluetooth.
 
 Current release - regressions:
 
  - net: revert RTNL changes in unregister_netdevice_many_notify()
 
  - Bluetooth: fix possible infinite recursion of btusb_reset
 
  - eth: adjust locking in some old drivers which protect their state
 	with spinlocks to avoid sleeping in atomic; core protects
 	netdev state with a mutex now
 
 Previous releases - regressions:
 
  - eth: mlx5e: make sure we pass node ID, not CPU ID to kvzalloc_node()
 
  - eth: bgmac: reduce max frame size to support just 1500 bytes;
 	the jumbo frame support would previously cause OOB writes,
 	but now fails outright
 
  - mptcp: blackhole only if 1st SYN retrans w/o MPC is accepted,
 	avoid false detection of MPTCP blackholing
 
 Previous releases - always broken:
 
  - mptcp: handle fastopen disconnect correctly
 
  - xfrm: make sure skb->sk is a full sock before accessing its fields
 
  - xfrm: fix taking a lock with preempt disabled for RT kernels
 
  - usb: ipheth: improve safety of packet metadata parsing; prevent
 	potential OOB accesses
 
  - eth: renesas: fix missing rtnl lock in suspend/resume path
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAmebzXsACgkQMUZtbf5S
 IrvGBQ//auOF2yY1sg40fBvc6Hr1jpZBcr+uqTL6Qka1uVOvTFY51hAN54lBt32+
 ixmcHsD0xdcHrr7VrqSXqurQLiGsdwUpnxZFCj/FymQuMunVysEqudvPeKDVHpsw
 JW5c4nJOexEA2viByK9iB23Qq0P3uBoPEnKrbSTVSDvYaXUj6y8Cvt3/vXc+H/tc
 T7GaxHH55NNNPkRz34YU3OWcaZsgkQEcdVpZf4tODPmg7J5VQj8SQeMhk/HI0sdO
 WKjWB0woZkiQECtamqAOXnv47PXd6igv8NALRPlJcKjs0EszUvuYhD/9MEOeghjI
 sjcQn9JnPpG+ca/qFVCSpEEOo2zGVn5dkJT5x26udH+5XHf7Pq+zpJwB6LHo98yF
 bGMpIrF6gi2EnBtS/tRjMyBU9Ut9KiUtjXMvn9EsD1U1FGIbz6wyQLlT0pG0hwJb
 rEdKfegrcyhWKHOD4vH9ciEg/7lgGfsGyfJDktIMdyailZc6tBcxwbdlc+5jRDA9
 0RqGASIXaiX7AC3WOSeQzMgbV+WXdhaX/yrMJL5KBfBTzxG2audnJt1tPN3mbh3z
 NM6M2cnMsoX4QLSiaukJaCL7LWHSTlVttZVg8FGXHj1PejMQQBVjGVvzk2UF55UR
 gV7X9/VkXhmIDAZgThWtOdPLz+ItksfSKiruhUsXust6JgqRuqc=
 =GjBE
 -----END PGP SIGNATURE-----

Merge tag 'net-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from IPSec, netfilter and Bluetooth.

  Nothing really stands out, but as usual there's a slight concentration
  of fixes for issues added in the last two weeks before the merge
  window, and driver bugs from 6.13 which tend to get discovered upon
  wider distribution.

  Current release - regressions:

   - net: revert RTNL changes in unregister_netdevice_many_notify()

   - Bluetooth: fix possible infinite recursion of btusb_reset

   - eth: adjust locking in some old drivers which protect their state
     with spinlocks to avoid sleeping in atomic; core protects netdev
     state with a mutex now

  Previous releases - regressions:

   - eth:
      - mlx5e: make sure we pass node ID, not CPU ID to kvzalloc_node()
      - bgmac: reduce max frame size to support just 1500 bytes; the
        jumbo frame support would previously cause OOB writes, but now
        fails outright

   - mptcp: blackhole only if 1st SYN retrans w/o MPC is accepted, avoid
     false detection of MPTCP blackholing

  Previous releases - always broken:

   - mptcp: handle fastopen disconnect correctly

   - xfrm:
      - make sure skb->sk is a full sock before accessing its fields
      - fix taking a lock with preempt disabled for RT kernels

   - usb: ipheth: improve safety of packet metadata parsing; prevent
     potential OOB accesses

   - eth: renesas: fix missing rtnl lock in suspend/resume path"

* tag 'net-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (88 commits)
  MAINTAINERS: add Neal to TCP maintainers
  net: revert RTNL changes in unregister_netdevice_many_notify()
  net: hsr: fix fill_frame_info() regression vs VLAN packets
  doc: mptcp: sysctl: blackhole_timeout is per-netns
  mptcp: blackhole only if 1st SYN retrans w/o MPC is accepted
  netfilter: nf_tables: reject mismatching sum of field_len with set key length
  net: sh_eth: Fix missing rtnl lock in suspend/resume path
  net: ravb: Fix missing rtnl lock in suspend/resume path
  selftests/net: Add test for loading devbound XDP program in generic mode
  net: xdp: Disallow attaching device-bound programs in generic mode
  tcp: correct handling of extreme memory squeeze
  bgmac: reduce max frame size to support just MTU 1500
  vsock/test: Add test for connect() retries
  vsock/test: Add test for UAF due to socket unbinding
  vsock/test: Introduce vsock_connect_fd()
  vsock/test: Introduce vsock_bind()
  vsock: Allow retrying on connect() failure
  vsock: Keep the binding until socket destruction
  Bluetooth: L2CAP: accept zero as a special value for MTU auto-selection
  Bluetooth: btnxpuart: Fix glitches seen in dual A2DP streaming
  ...
 2025-01-30 12:24:20 -08:00
Linus Torvalds
d3d90cc289 Provide stable parent and name to ->d_revalidate() instances 
Most of the filesystem methods where we care about dentry name
 and parent have their stability guaranteed by the callers;
 ->d_revalidate() is the major exception.
 
 It's easy enough for callers to supply stable values for
 expected name and expected parent of the dentry being
 validated.  That kills quite a bit of boilerplate in
 ->d_revalidate() instances, along with a bunch of races
 where they used to access ->d_name without sufficient
 precautions.
 
 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCZ5gkoQAKCRBZ7Krx/gZQ
 6w9FAP4nyxNNWMjE1TwuWR/DNDMYYuw/qn/miZ88B5BUM8hzqgD/W2SjRvcbSaIm
 xSIYpbtKgtqNU34P1PU+dBvL8Utz2AE=
 =TWY8
 -----END PGP SIGNATURE-----

Merge tag 'pull-revalidate' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs d_revalidate updates from Al Viro:
 "Provide stable parent and name to ->d_revalidate() instances

  Most of the filesystem methods where we care about dentry name and
  parent have their stability guaranteed by the callers;
  ->d_revalidate() is the major exception.

  It's easy enough for callers to supply stable values for expected name
  and expected parent of the dentry being validated. That kills quite a
  bit of boilerplate in ->d_revalidate() instances, along with a bunch
  of races where they used to access ->d_name without sufficient
  precautions"

* tag 'pull-revalidate' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  9p: fix ->rename_sem exclusion
  orangefs_d_revalidate(): use stable parent inode and name passed by caller
  ocfs2_dentry_revalidate(): use stable parent inode and name passed by caller
  nfs: fix ->d_revalidate() UAF on ->d_name accesses
  nfs{,4}_lookup_validate(): use stable parent inode passed by caller
  gfs2_drevalidate(): use stable parent inode and name passed by caller
  fuse_dentry_revalidate(): use stable parent inode and name passed by caller
  vfat_revalidate{,_ci}(): use stable parent inode passed by caller
  exfat_d_revalidate(): use stable parent inode passed by caller
  fscrypt_d_revalidate(): use stable parent inode passed by caller
  ceph_d_revalidate(): propagate stable name down into request encoding
  ceph_d_revalidate(): use stable parent inode passed by caller
  afs_d_revalidate(): use stable name and parent inode passed by caller
  Pass parent directory inode and expected name to ->d_revalidate()
  generic_ci_d_compare(): use shortname_storage
  ext4 fast_commit: make use of name_snapshot primitives
  dissolve external_name.u into separate members
  make take_dentry_name_snapshot() lockless
  dcache: back inline names with a struct-wrapped array of unsigned long
  make sure that DNAME_INLINE_LEN is a multiple of word size
 2025-01-30 09:13:35 -08:00
Linus Torvalds
72deda0abe soundwire updates for 6.14 
- SoundWire multi lane support to use multiple lanes if supported
  - Stream handling of DEPREPARED state
  - amd wake register programming for power off mode
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE+vs47OPLdNbVcHzyfBQHDyUjg0cFAmeac7MACgkQfBQHDyUj
 g0daUA//VD+ousUjyUrm07rNYOw+ZtwVChj+aVGSrauuuGxNOsp+RXrd+lLDjWgc
 ruHwegb8s9Dynq6RVJcuXQ8bKlop8FX6QMn2lewV/+dYkOk4PBwVr3gKER2lKnZV
 WZ4hI/bFcJyCmIf6v1pIwzc1XKiCLuZzhnPIbKTcL3cLEKssaqMTYQAsnZw15gCY
 GUccgFYGYe0+eNdt7BtxlAaDZN3X6ankgwxIh1/kXHz7Tiu5fbqWxBnmBAxBQtHx
 shK4mnK5ccWrNZYzcq0+CWvYErVg496FyZm6ZNOCZKqaOfvXwtC4ZEyEkDDCb2Ep
 h2eIaLaMIYOzDZt/zoV/pcwhgYtEMiyrmhsLRqgywAjweA1tf+wD/ti6fKN9L4tf
 YQ0Xbe13aSoFy9fQWF/26rf0WVE0oU38w6KlZ/uM/xY6gcYnzZgdOnlMNnmOZKfg
 GY5DvqMrUgscG6WAzwtu+Ro4zXURQWgqBY3+e4d1IVNk2u9q7pCfV5E2QhRri3q6
 217+QPdPEqmQwad9vowoPfPpFpCXvs/duv7SYdU0Wm6h55ShC22hho6n2VcxQoZ7
 U0DpilHWjbQxnBLLrgm3dcXC8d7V+AnA7CDk1vR1H2vDy+WzVY1xPmBGAyn1idUC
 Ly7oowR1yt56iqVig5cGzA1GjAsBqRX+KLyPL7EU9xQjWCBq80Q=
 =PnzK
 -----END PGP SIGNATURE-----

Merge tag 'soundwire-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

Pull soundwire updates from Vinod Koul:

 - SoundWire multi lane support to use multiple lanes if supported

 - Stream handling of DEPREPARED state

 - AMD wake register programming for power off mode

* tag 'soundwire-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
  soundwire: amd: clear wake enable register for power off mode
  soundwire: generic_bandwidth_allocation: count the bandwidth of active streams only
  SoundWire: pass stream to compute_params()
  soundwire: generic_bandwidth_allocation: add lane in sdw_group_params
  soundwire: generic_bandwidth_allocation: select data lane
  soundwire: generic_bandwidth_allocation: check required freq accurately
  soundwire: generic_bandwidth_allocation: correct clk_freq check in sdw_select_row_col
  Soundwire: generic_bandwidth_allocation: set frame shape on fly
  Soundwire: stream: program BUSCLOCK_SCALE
  Soundwire: add sdw_slave_get_scale_index helper
  soundwire: generic_bandwidth_allocation: skip DEPREPARED streams
  soundwire: stream: set DEPREPARED state earlier
  soundwire: add lane_used_bandwidth in struct sdw_bus
  soundwire: mipi_disco: read lane mapping properties from ACPI
  soundwire: add lane field in sdw_port_runtime
  soundwire: bus: Move irq mapping cleanup into devres
 2025-01-29 14:38:19 -08:00
Linus Torvalds
9071080d1e cxl changes for v6.14 
- Move HMAT printouts to pr_debug()
 - Add CXL type2 support to cxl_dvsec_rr_decode() in preparation for
   type2 support
 - A series that updates CXL event records to spec r3.1 and related
   changes
 - Refactoring of cxl_find_regblock_instance() to count regblocks
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE5DAy15EJMCV1R6v9YGjFFmlTOEoFAmeaUgcACgkQYGjFFmlT
 OEqheg/+Iz7d1uBmyEcgf9JX0XAoPuG7uAPQcgSDK1u4gG0WxuBn+rc4Vprukml5
 0wn1n6LVQg3lkQp9oNQKwEMt1es7Y2RDOaPd17eiBxFoBPkmHIF8fl2nhoLzCSco
 j23kdKsySW5wcT7FdppVT0cRdMQM/9ecJhR7mribdIxNwmPP2D7knnOYjytQjRFp
 C65EGZ97cn8CAJt7zdBRLNcgzJc4iVfT7jyRbtFvA/Bx4WU7qSCiwh8c2KZ4U3wE
 piCoMnsv/RwMjbGZNmEt7dTC3RIawWajGchWJ9aolXYidWm6sxpx6JOgzaGWJK5q
 19fsb978SnqA6tr4qNmTgohl20gkRiqQZnYWZoKlyIZeBA+IqMdpl0YosSVNvS85
 kBlau9eMmZVIxJlHevQ3+5NBCzzXz2rLnORAJUUCgHnuWeKU/+t31xK2lfbMJet9
 Q6wkJC4kz1u6xLBP1aEnkVtQE0RY1UmUw4aU0L3jiLF6IGRF9wBRW/bFBKTEYLul
 7cL7R5rwFxIwvR1uNIQVVnSTUzHUeA1brQS1I6QJP2SNzVl2uew1Xlx6KrLt3kQw
 zOuQFAvMa3L/HWjfDJYvcxfzhYN2ng3ec3XjyGN75S5jrb7a0PZ5vOmxZ6PFvEZE
 8HFHfQqvpdO0e1SLWgLv7OBENM3GgLovbeSbEhQOlxzjx7QEsFc=
 =Tavn
 -----END PGP SIGNATURE-----

Merge tag 'cxl-for-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull Compute Express Link (CXL) updates from Dave Jiang:
 "A tweak to the HMAT output that was acked by Rafael, a prep patch for
  CXL type2 devices support that's coming soon, refactoring of the CXL
  regblock enumeration code, and a series of patches to update the event
  records to CXL spec r3.1:

   - Move HMAT printouts to pr_debug()

   - Add CXL type2 support to cxl_dvsec_rr_decode() in preparation for
     type2 support

   - A series that updates CXL event records to spec r3.1 and related
     changes

   - Refactoring of cxl_find_regblock_instance() to count regblocks"

* tag 'cxl-for-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  cxl/core/regs: Refactor out functions to count regblocks of given type
  cxl/test: Update test code for event records to CXL spec rev 3.1
  cxl/events: Update Memory Module Event Record to CXL spec rev 3.1
  cxl/events: Update DRAM Event Record to CXL spec rev 3.1
  cxl/events: Update General Media Event Record to CXL spec rev 3.1
  cxl/events: Add Component Identifier formatting for CXL spec rev 3.1
  cxl/events: Update Common Event Record to CXL spec rev 3.1
  cxl/pci: Add CXL Type 1/2 support to cxl_dvsec_rr_decode()
  ACPI/HMAT: Move HMAT messages to pr_debug()
 2025-01-29 11:23:22 -08:00
Linus Torvalds
92cc9acff7 fuse update for 6.14 
-----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQSQHSd0lITzzeNWNm3h3BK/laaZPAUCZ5nzXQAKCRDh3BK/laaZ
 PCaJAP4gw6CnxrdzuPvm7yEsINuHdavQ8aeCiimWwOC4eBzkOgD/SlMry5vwCkW9
 WOzoONVUcNIPEqYXThw77OFlkFpKGwQ=
 =JQE1
 -----END PGP SIGNATURE-----

Merge tag 'fuse-update-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse

Pull fuse updates from Miklos Szeredi:
 "Add support for io-uring communication between kernel and userspace
  using IORING_OP_URING_CMD (Bernd Schubert). Following features enable
  gains in performance compared to the regular interface:

   - Allow processing multiple requests with less syscall overhead

   - Combine commit of old and fetch of new fuse request

   - CPU/NUMA affinity of queues

  Patches were reviewed by several people, including Pavel Begunkov,
  io-uring co-maintainer"

* tag 'fuse-update-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: prevent disabling io-uring on active connections
  fuse: enable fuse-over-io-uring
  fuse: block request allocation until io-uring init is complete
  fuse: {io-uring} Prevent mount point hang on fuse-server termination
  fuse: Allow to queue bg requests through io-uring
  fuse: Allow to queue fg requests through io-uring
  fuse: {io-uring} Make fuse_dev_queue_{interrupt,forget} non-static
  fuse: {io-uring} Handle teardown of ring entries
  fuse: Add io-uring sqe commit and fetch support
  fuse: {io-uring} Make hash-list req unique finding functions non-static
  fuse: Add fuse-io-uring handling into fuse_copy
  fuse: Make fuse_copy non static
  fuse: {io-uring} Handle SQEs - register commands
  fuse: make args->in_args[0] to be always the header
  fuse: Add fuse-io-uring design documentation
  fuse: Move request bits
  fuse: Move fuse_get_dev to header file
  fuse: rename to fuse_dev_end_requests and make non-static
 2025-01-29 09:40:23 -08:00
Christoph Hellwig
27560b371a fs: pack struct kstat better 
Move the change_cookie and subvol up to avoid two 4 byte holes.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2025-01-29 09:04:28 -08:00
Linus Torvalds
b88fe2b5dd NFS Client Updates for Linux 6.14 
New Features:
   * Enable using direct IO with localio
   * Added localio related tracepoints
 
 Bugfixes:
   * Sunrpc fixes for working with a very large cl_tasks list
   * Fix a possible buffer overflow in nfs_sysfs_link_rpc_client()
   * Fixes for handling reconnections with localio
   * Fix how the NFS_FSCACHE kconfig option interacts with NETFS_SUPPORT
   * Fix COPY_NOTIFY xdr_buf size calculations
   * pNFS/Flexfiles fix for retrying requesting a layout segment for reads
   * Sunrpc fix for retrying on EKEYEXPIRED error when the TGT is expired
 
 Cleanups:
   * Various other nfs & nfsd localio cleanups
   * Prepratory patches for async copy improvements that are under development
   * Make OFFLOAD_CANCEL, LAYOUTSTATS, and LAYOUTERR moveable to other xprts
   * Add netns inum and srcaddr to debugfs rpc_xprt info
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEnZ5MQTpR7cLU7KEp18tUv7ClQOsFAmeZUzUACgkQ18tUv7Cl
 QOvArw/9HltIlcJHbi7tApGJ4dFpuJCa/fHbA1n5bHvKrCR5aElmFZoiFDdsM1JX
 kFAlMED9n1dW9VmzLJcepxmrLo/t7KXueiZNharHynWTxcszSl6jS+tOFBW6OflG
 Rrrjq/SrsWI2Fu8X4e/7ZV7pqRLGGn5SSMwgbuMbcyzBvVgN8mZM/BneIp1J59AI
 5NOsif5KWetVhQc43zlRlbVWR5cvNGcUK4i58LIaPFzPMt0xq/XJI+QWffj6kv4g
 cHabCNYTdQYMkhiPQC+LLYkw6sMbw2NatajTTYNMWfR/I+7wz9k5ej6CHKPIFCSr
 xjmscypySTLfMFQjrDFZkpX2CwSp/VIbV6go36DJwAlcCRzqz+I7cajlrRK4zvyr
 DyrcaZHvClEczP9QqdPj2wqRXbmIOsDMksOu4ACTUImd4o3f2v1K6DcwRj9oUIhV
 AGR31OEMt2A+RaVvVZYR4PpixJ01vH9LcmsaOu5KkHX8X4q2osQ7eMy+FV4kV09S
 pMnxDMAyszJU8IuzUG1/HfkonNlDMivIbqpgG4ZaVW08Nq4mCxJll1vTAa9FTLz2
 z+9eocqKwf724q1RAgOB7vj4AwOwL4Ul6d18UBtyUitZz3ndLRZ8Yy6r/AhrpCsC
 3co0Y3znZbKeRjmReNl0GLG4qiKE+E7Xh23Lf3IqXg8GE2Mu+Ls=
 =srvH
 -----END PGP SIGNATURE-----

Merge tag 'nfs-for-6.14-1' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client updates from Anna Schumaker:
 "New Features:
   - Enable using direct IO with localio
   - Added localio related tracepoints

  Bugfixes:
   - Sunrpc fixes for working with a very large cl_tasks list
   - Fix a possible buffer overflow in nfs_sysfs_link_rpc_client()
   - Fixes for handling reconnections with localio
   - Fix how the NFS_FSCACHE kconfig option interacts with NETFS_SUPPORT
   - Fix COPY_NOTIFY xdr_buf size calculations
   - pNFS/Flexfiles fix for retrying requesting a layout segment for
     reads
   - Sunrpc fix for retrying on EKEYEXPIRED error when the TGT is
     expired

  Cleanups:
   - Various other nfs & nfsd localio cleanups
   - Prepratory patches for async copy improvements that are under
     development
   - Make OFFLOAD_CANCEL, LAYOUTSTATS, and LAYOUTERR moveable to other
     xprts
   - Add netns inum and srcaddr to debugfs rpc_xprt info"

* tag 'nfs-for-6.14-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (28 commits)
  SUNRPC: do not retry on EKEYEXPIRED when user TGT ticket expired
  sunrpc: add netns inum and srcaddr to debugfs rpc_xprt info
  pnfs/flexfiles: retry getting layout segment for reads
  NFSv4.2: make LAYOUTSTATS and LAYOUTERROR MOVEABLE
  NFSv4.2: mark OFFLOAD_CANCEL MOVEABLE
  NFSv4.2: fix COPY_NOTIFY xdr buf size calculation
  NFS: Rename struct nfs4_offloadcancel_data
  NFS: Fix typo in OFFLOAD_CANCEL comment
  NFS: CB_OFFLOAD can return NFS4ERR_DELAY
  nfs: Make NFS_FSCACHE select NETFS_SUPPORT instead of depending on it
  nfs: fix incorrect error handling in LOCALIO
  nfs: probe for LOCALIO when v3 client reconnects to server
  nfs: probe for LOCALIO when v4 client reconnects to server
  nfs/localio: remove redundant code and simplify LOCALIO enablement
  nfs_common: add nfs_localio trace events
  nfs_common: track all open nfsd_files per LOCALIO nfs_client
  nfs_common: rename nfslocalio nfs_uuid_lock to nfs_uuids_lock
  nfsd: nfsd_file_acquire_local no longer returns GC'd nfsd_file
  nfsd: rename nfsd_serv_ prefixed methods and variables with nfsd_net_
  nfsd: update percpu_ref to manage references on nfsd_net
  ...
 2025-01-28 14:23:46 -08:00
Linus Torvalds
2ab002c755 Driver core and debugfs updates 
Here is the big set of driver core and debugfs updates for 6.14-rc1.
 It's coming late in the merge cycle as there are a number of merge
 conflicts with your tree now, and I wanted to make sure they were
 working properly.  To resolve them, look in linux-next, and I will send
 the "fixup" patch as a response to the pull request.
 
 Included in here is a bunch of driver core, PCI, OF, and platform rust
 bindings (all acked by the different subsystem maintainers), hence the
 merge conflict with the rust tree, and some driver core api updates to
 mark things as const, which will also require some fixups due to new
 stuff coming in through other trees in this merge window.
 
 There are also a bunch of debugfs updates from Al, and there is at least
 one user that does have a regression with these, but Al is working on
 tracking down the fix for it.  In my use (and everyone else's linux-next
 use), it does not seem like a big issue at the moment.
 
 Here's a short list of the things in here:
   - driver core bindings for PCI, platform, OF, and some i/o functions.
     We are almost at the "write a real driver in rust" stage now,
     depending on what you want to do.
   - misc device rust bindings and a sample driver to show how to use
     them
   - debugfs cleanups in the fs as well as the users of the fs api for
     places where drivers got it wrong or were unnecessarily doing things
     in complex ways.
   - driver core const work, making more of the api take const * for
     different parameters to make the rust bindings easier overall.
   - other small fixes and updates
 
 All of these have been in linux-next with all of the aforementioned
 merge conflicts, and the one debugfs issue, which looks to be resolved
 "soon".
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCZ5koPA8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ymFHACfT5acDKf2Bov2Lc/5u3vBW/R6ChsAnj+LmgVI
 hcDSPodj4szR40RRnzBd
 =u5Ey
 -----END PGP SIGNATURE-----

Merge tag 'driver-core-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core and debugfs updates from Greg KH:
 "Here is the big set of driver core and debugfs updates for 6.14-rc1.

  Included in here is a bunch of driver core, PCI, OF, and platform rust
  bindings (all acked by the different subsystem maintainers), hence the
  merge conflict with the rust tree, and some driver core api updates to
  mark things as const, which will also require some fixups due to new
  stuff coming in through other trees in this merge window.

  There are also a bunch of debugfs updates from Al, and there is at
  least one user that does have a regression with these, but Al is
  working on tracking down the fix for it. In my use (and everyone
  else's linux-next use), it does not seem like a big issue at the
  moment.

  Here's a short list of the things in here:

   - driver core rust bindings for PCI, platform, OF, and some i/o
     functions.

     We are almost at the "write a real driver in rust" stage now,
     depending on what you want to do.

   - misc device rust bindings and a sample driver to show how to use
     them

   - debugfs cleanups in the fs as well as the users of the fs api for
     places where drivers got it wrong or were unnecessarily doing
     things in complex ways.

   - driver core const work, making more of the api take const * for
     different parameters to make the rust bindings easier overall.

   - other small fixes and updates

  All of these have been in linux-next with all of the aforementioned
  merge conflicts, and the one debugfs issue, which looks to be resolved
  "soon""

* tag 'driver-core-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (95 commits)
  rust: device: Use as_char_ptr() to avoid explicit cast
  rust: device: Replace CString with CStr in property_present()
  devcoredump: Constify 'struct bin_attribute'
  devcoredump: Define 'struct bin_attribute' through macro
  rust: device: Add property_present()
  saner replacement for debugfs_rename()
  orangefs-debugfs: don't mess with ->d_name
  octeontx2: don't mess with ->d_parent or ->d_parent->d_name
  arm_scmi: don't mess with ->d_parent->d_name
  slub: don't mess with ->d_name
  sof-client-ipc-flood-test: don't mess with ->d_name
  qat: don't mess with ->d_name
  xhci: don't mess with ->d_iname
  mtu3: don't mess wiht ->d_iname
  greybus/camera - stop messing with ->d_iname
  mediatek: stop messing with ->d_iname
  netdevsim: don't embed file_operations into your structs
  b43legacy: make use of debugfs_get_aux()
  b43: stop embedding struct file_operations into their objects
  carl9170: stop embedding file_operations into their objects
  ...
 2025-01-28 12:25:12 -08:00
Linus Torvalds
58f504efcd TTY / Serial driver updates for 6.14-rc1 
Here is the tty/serial driver set of changes for 6.14-rc1.  Nothing
 major in here, it was delayed a bit due to a regression found in
 linux-next which has now been reverted and verified that it is fixed.
 Other than the reverts, highlights include:
   - 8250 work to get the nbcon mode working (partially reverted)
   - altera_jtaguart minor fixes
   - fsl_lpuart minor updates
   - sh-sci driver minor updatesa
   - other tiny driver updates and cleanups
 
 All of these have been in linux-next for a while, and now with no
 reports of problems (thanks to the reverts.)
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCZ5jnmQ8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ymUzgCdFnanKtvIbBHv/RZJlu/t6MIofYkAn13dJjxQ
 EGOYXDofSmMeGKL/V4Ie
 =+GCR
 -----END PGP SIGNATURE-----

Merge tag 'tty-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty / serial driver updates from Greg KH:
 "Here is the tty/serial driver set of changes for 6.14-rc1. Nothing
  major in here, it was delayed a bit due to a regression found in
  linux-next which has now been reverted and verified that it is fixed.

  Other than the reverts, highlights include:

   - 8250 work to get the nbcon mode working (partially reverted)

   - altera_jtaguart minor fixes

   - fsl_lpuart minor updates

   - sh-sci driver minor updatesa

   - other tiny driver updates and cleanups

  All of these have been in linux-next for a while, and now with no
  reports of problems (thanks to the reverts)"

* tag 'tty-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (44 commits)
  Revert "serial: 8250: Switch to nbcon console"
  Revert "serial: 8250: Revert "drop lockdep annotation from serial8250_clear_IER()""
  serial: sh-sci: Increment the runtime usage counter for the earlycon device
  serial: sh-sci: Clean sci_ports[0] after at earlycon exit
  serial: sh-sci: Do not probe the serial port if its slot in sci_ports[] is in use
  serial: sh-sci: Move runtime PM enable to sci_probe_single()
  serial: sh-sci: Drop __initdata macro for port_cfg
  serial: kgdb_nmi: Remove unused knock code
  tty: Permit some TIOCL_SETSEL modes without CAP_SYS_ADMIN
  tty: xilinx_uartps: split sysrq handling
  serial: 8250: Revert "drop lockdep annotation from serial8250_clear_IER()"
  serial: 8250: Switch to nbcon console
  serial: 8250: Provide flag for IER toggling for RS485
  serial: 8250: Use high-level writing function for FIFO
  serial: 8250: Use frame time to determine timeout
  serial: 8250: Adjust the timeout for FIFO mode
  tty: atmel_serial: Use of_property_present() for non-boolean properties
  serial: sc16is7xx: Add polling mode if no IRQ pin is available
  dt-bindings: serial: sc16is7xx: Add description for polling mode
  tty: serial: atmel: make it selectable for ARCH_LAN969X
  ...
 2025-01-28 09:55:04 -08:00
Linus Torvalds
e2ee2e9b15 KVM/arm64 updates for 6.14 
* New features:
 
   - Support for non-protected guest in protected mode, achieving near
     feature parity with the non-protected mode
 
   - Support for the EL2 timers as part of the ongoing NV support
 
   - Allow control of hardware tracing for nVHE/hVHE
 
 * Improvements, fixes and cleanups:
 
   - Massive cleanup of the debug infrastructure, making it a bit less
     awkward and definitely easier to maintain. This should pave the
     way for further optimisations
 
   - Complete rewrite of pKVM's fixed-feature infrastructure, aligning
     it with the rest of KVM and making the code easier to follow
 
   - Large simplification of pKVM's memory protection infrastructure
 
   - Better handling of RES0/RES1 fields for memory-backed system
     registers
 
   - Add a workaround for Qualcomm's Snapdragon X CPUs, which suffer
     from a pretty nasty timer bug
 
   - Small collection of cleanups and low-impact fixes
 -----BEGIN PGP SIGNATURE-----
 
 iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAmeYqJcQHHdpbGxAa2Vy
 bmVsLm9yZwAKCRC3rHDchMFjNLUhCACxUTMVQXhfW3qbh0UQxPd7XXvjI+Hm7SPS
 wDuVTle4jrFVGHxuZqtgWLmx8hD7bqO965qmFgbevKlwsRY33onH2nbH4i4AcwbA
 jcdM4yMHZI4+Qmnb4G5ZJ89IwjAhHPZTBOV5KRhyHQ/qtRciHHtOgJde7II9fd68
 uIESg4SSSyUzI47YSEHmGVmiBIhdQhq2qust0m6NPFalEGYstPbpluPQ6R1CsDqK
 v14TIAW7t0vSPucBeODxhA5gEa2JsvNi+sqA+DF/ELH2ZqpkuR7rofgMGblaXCSD
 JXa5xamRB9dI5zi8vatwfOzYlog+/gzmPqMh/9JXpiDGHxJe0vlz
 =tQ8F
 -----END PGP SIGNATURE-----

Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull KVM/arm64 updates from Will Deacon:
 "New features:

   - Support for non-protected guest in protected mode, achieving near
     feature parity with the non-protected mode

   - Support for the EL2 timers as part of the ongoing NV support

   - Allow control of hardware tracing for nVHE/hVHE

  Improvements, fixes and cleanups:

   - Massive cleanup of the debug infrastructure, making it a bit less
     awkward and definitely easier to maintain. This should pave the way
     for further optimisations

   - Complete rewrite of pKVM's fixed-feature infrastructure, aligning
     it with the rest of KVM and making the code easier to follow

   - Large simplification of pKVM's memory protection infrastructure

   - Better handling of RES0/RES1 fields for memory-backed system
     registers

   - Add a workaround for Qualcomm's Snapdragon X CPUs, which suffer
     from a pretty nasty timer bug

   - Small collection of cleanups and low-impact fixes"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (87 commits)
  arm64/sysreg: Get rid of TRFCR_ELx SysregFields
  KVM: arm64: nv: Fix doc header layout for timers
  KVM: arm64: nv: Apply RESx settings to sysreg reset values
  KVM: arm64: nv: Always evaluate HCR_EL2 using sanitising accessors
  KVM: arm64: Fix selftests after sysreg field name update
  coresight: Pass guest TRFCR value to KVM
  KVM: arm64: Support trace filtering for guests
  KVM: arm64: coresight: Give TRBE enabled state to KVM
  coresight: trbe: Remove redundant disable call
  arm64/sysreg/tools: Move TRFCR definitions to sysreg
  tools: arm64: Update sysreg.h header files
  KVM: arm64: Drop pkvm_mem_transition for host/hyp donations
  KVM: arm64: Drop pkvm_mem_transition for host/hyp sharing
  KVM: arm64: Drop pkvm_mem_transition for FF-A
  KVM: arm64: Explicitly handle BRBE traps as UNDEFINED
  KVM: arm64: vgic: Use str_enabled_disabled() in vgic_v3_probe()
  arm64: kvm: Introduce nvhe stack size constants
  KVM: arm64: Fix nVHE stacktrace VA bits mask
  KVM: arm64: Fix FEAT_MTE in pKVM
  Documentation: Update the behaviour of "kvm-arm.mode"
  ...
 2025-01-28 09:01:36 -08:00
Linus Torvalds
9ff28f2fad LoongArch changes for v6.14 
1, Migrate to the generic rule for built-in DTB;
 2, Disable FIX_EARLYCON_MEM when ARCH_IOREMAP is enabled;
 3, Derive timer max_delta from PRCFG1's timer_bits;
 4, Correct the cacheinfo sharing information;
 5, Add pgprot_nx() implementation;
 6, Add debugfs entries to switch SFB/TSO state;
 7, Change the maximum number of watchpoints;
 8, Some bug fixes and other small changes.
 -----BEGIN PGP SIGNATURE-----
 
 iQJKBAABCAA0FiEEzOlt8mkP+tbeiYy5AoYrw/LiJnoFAmeWPcMWHGNoZW5odWFj
 YWlAa2VybmVsLm9yZwAKCRAChivD8uImetVaD/4gNjxyuBfS/4gx4LgOmebbAlvs
 uVX5BFbn76vJwjVau0T0OLarJVVcfkEjAdPSYLi70TchMgwCPdxPTXVW4UiFkj7z
 UxVTegFbCD200hpVqJMsKI7IFk/7xPAVho0VtL1kXcsd/fLkCl3GQ3heAAZs6eGx
 rN/nfxGghNZY16qgf5e3IWZljHila0l2Z3Q0tw2wAD2GWN2mbOFB9MHgQLvwaBZK
 o9YNAu7lm5jfjecZR9qs0TpUToKQL4qwZLMiC5Edjkx2gml2pLZMnTQ+IbxmJbU8
 geRZziUCsq3sKvuKJ6UKUdCVaiHnuHnJNZhFi9hkL3WEM1NM+1iVn+AwGO79CSqJ
 pU/zWrIzW7cKBo7+8KBhhzwORWggOZ+iTenmmJ77pJ3uUMnfK/iiSokKG461/rGO
 qJ2qMuIt4a8uJDsCSFLcMepiW7Wo5D5rFX8OG1sSgfWPB9K3/c8IbCqJ0lGof3cq
 E3n8dQJT8/yu9El372uKqdLrnE3cNeHYxWdA7kQOPfw6DzXs4aRmVB8qZsUPBncv
 3d4kRpVgQY8rX/lX2ipM8uUfEzyWJsuydmKUOwoyXXGuJRx/l72TR/IawMzXaTGF
 ljQMQt7P69njlZYki5m3AJHkojW0smx2IRF9EgCrz5VjTMYgVaFsPhhcg9BQ+Ej5
 tR0P6r8GZEG6Lews6A==
 =dfxU
 -----END PGP SIGNATURE-----

Merge tag 'loongarch-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch updates from Huacai Chen:

 - Migrate to the generic rule for built-in DTB

 - Disable FIX_EARLYCON_MEM when ARCH_IOREMAP is enabled

 - Derive timer max_delta from PRCFG1's timer_bits

 - Correct the cacheinfo sharing information

 - Add pgprot_nx() implementation

 - Add debugfs entries to switch SFB/TSO state

 - Change the maximum number of watchpoints

 - Some bug fixes and other small changes

* tag 'loongarch-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  LoongArch: Extend the maximum number of watchpoints
  LoongArch: Change 8 to 14 for LOONGARCH_MAX_{BRP,WRP}
  LoongArch: Add debugfs entries to switch SFB/TSO state
  LoongArch: Fix warnings during S3 suspend
  LoongArch: Adjust SETUP_SLEEP and SETUP_WAKEUP
  LoongArch: Refactor bug_handler() implementation
  LoongArch: Add pgprot_nx() implementation
  LoongArch: Correct the __switch_to() prototype in comments
  LoongArch: Correct the cacheinfo sharing information
  LoongArch: Derive timer max_delta from PRCFG1's timer_bits
  LoongArch: Disable FIX_EARLYCON_MEM when ARCH_IOREMAP is enabled
  LoongArch: Migrate to the generic rule for built-in DTB
 2025-01-28 08:52:01 -08:00
Linus Torvalds
6d61a53dd6 f2fs-for-6.14-rc1 
In this series, there are several major improvements such as 1) folio conversion
 made by Matthew, 2) speed-up of block truncation, 3) caching more dentry pages.
 In addition, we implemented a linear dentry search to address recent unicode
 regression, and figured out some false alarms that we could get rid of.
 
 Enhancement:
  - foilio conversion in various IO paths
  - optimize f2fs_truncate_data_blocks_range()
  - cache more dentry pages
  - remove unnecessary blk_finish_plug
  - procfs: show mtime in segment_bits
 
 Bug fix:
  - introduce linear search for dentries
  - don't call block truncation for aliased file
  - fix using wrong 'submitted' value in f2fs_write_cache_pages
  - fix to do sanity check correctly on i_inline_xattr_size
  - avoid trying to get invalid block address
  - fix inconsistent dirty state of atomic file
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE00UqedjCtOrGVvQiQBSofoJIUNIFAmeYV/QACgkQQBSofoJI
 UNKsPg/+NzFrK/D5nFJ6t86T2XdngzESbI+gbydA8CrT7VoAw5Es0GTswnsStnqF
 DaWWiz9TYDTJWarKMklZ8zcGwcQGAPZqyg3X+eUPb2Rfr9DK80Twov5nfzai/ZVM
 iJQuT7vAqbgJnmF1caJYghuOuJpd43U1lK/CxEomXzBCGVJipvSa7Mzh9awUS0P+
 luvTYjZXh3BISZDnqIbxVjZjcd6TKoBHVqKtz0JbrghVKJRXiVHr4IPnzUQ6hCE8
 MvN07mfQJPyIrZV1jVX/syYKUgwS/QYAmeca/uFGoYO0cSn3qAhdn0PLWpQBIB+D
 ST2SIE9penLlhCb8zN4d6Q6LwEcOWIbtcXffsix3EBCQosKqrqznV0SJ+fjGjuuw
 kX3ICsidYzB8GeHtf6dgH8dRqP4kvYnDe6P0Ho6iuxCZPHWiVauthORuMqerXFNn
 8hHtnGMqybGnT6Py51bt4qlxIgTVl3YO1643Ej8ihpCXJPoCmi6cTyK/M/KaZoaM
 6YYeTZwWbPuCclLm+iVNUPs0asxESSBqHTXm+r9NkaExtmclFyQs1edZ/pYUihq2
 CjvluyKVMuLVieU631am6X3H8sJsgepb8mjsJagtqF36DlCSW8jHgaqkl4gyi5m8
 V4c3w2rmh8IssjTCXxEGtqRQ/Qdbabo9aiFcNa37t1ov7+6GzEk=
 =PEtq
 -----END PGP SIGNATURE-----

Merge tag 'f2fs-for-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "In this series, there are several major improvements such as folio
  conversion by Matthew, speed-up of block truncation, and caching more
  dentry pages.

  In addition, we implemented a linear dentry search to address recent
  unicode regression, and figured out some false alarms that we could
  get rid of.

  Enhancements:
   - foilio conversion in various IO paths
   - optimize f2fs_truncate_data_blocks_range()
   - cache more dentry pages
   - remove unnecessary blk_finish_plug
   - procfs: show mtime in segment_bits

  Bug fixes:
   - introduce linear search for dentries
   - don't call block truncation for aliased file
   - fix using wrong 'submitted' value in f2fs_write_cache_pages
   - fix to do sanity check correctly on i_inline_xattr_size
   - avoid trying to get invalid block address
   - fix inconsistent dirty state of atomic file"

* tag 'f2fs-for-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (32 commits)
  f2fs: fix inconsistent dirty state of atomic file
  f2fs: fix to avoid changing 'check only' behaior of recovery
  f2fs: Clean up the loop outside of f2fs_invalidate_blocks()
  f2fs: procfs: show mtime in segment_bits
  f2fs: fix to avoid return invalid mtime from f2fs_get_section_mtime()
  f2fs: Fix format specifier in sanity_check_inode()
  f2fs: avoid trying to get invalid block address
  f2fs: fix to do sanity check correctly on i_inline_xattr_size
  f2fs: remove blk_finish_plug
  f2fs: Optimize f2fs_truncate_data_blocks_range()
  f2fs: fix using wrong 'submitted' value in f2fs_write_cache_pages
  f2fs: add parameter @len to f2fs_invalidate_blocks()
  f2fs: update_sit_entry_for_release() supports consecutive blocks.
  f2fs: introduce update_sit_entry_for_release/alloc()
  f2fs: don't call block truncation for aliased file
  f2fs: Introduce linear search for dentries
  f2fs: add parameter @len to f2fs_invalidate_internal_cache()
  f2fs: expand f2fs_invalidate_compress_page() to f2fs_invalidate_compress_pages_range()
  f2fs: ensure that node info flags are always initialized
  f2fs: The GC triggered by ioctl also needs to mark the segno as victim
  ...
 2025-01-27 20:58:58 -08:00
Linus Torvalds
f34b580514 NFSD 6.14 Release Notes 
Jeff Layton contributed an implementation of NFSv4.2+ attribute
 delegation, as described here:
 
 https://www.ietf.org/archive/id/draft-ietf-nfsv4-delstid-08.html
 
 This interoperates with similar functionality introduced into the
 Linux NFS client in v6.11. An attribute delegation permits an NFS
 client to manage a file's mtime, rather than flushing dirty data to
 the NFS server so that the file's mtime reflects the last write,
 which is considerably slower.
 
 Neil Brown contributed dynamic NFSv4.1 session slot table resizing.
 This facility enables NFSD to increase or decrease the number of
 slots per NFS session depending on server memory availability. More
 session slots means greater parallelism.
 
 Chuck Lever fixed a long-standing latent bug where NFSv4 COMPOUND
 encoding screws up when crossing a page boundary in the encoding
 buffer. This is a zero-day bug, but hitting it is rare and depends
 on the NFS client implementation. The Linux NFS client does not
 happen to trigger this issue.
 
 A variety of bug fixes and other incremental improvements fill out
 the list of commits in this release. Great thanks to all
 contributors, reviewers, testers, and bug reporters who participated
 during this development cycle.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEKLLlsBKG3yQ88j7+M2qzM29mf5cFAmeVPBUACgkQM2qzM29m
 f5dClxAAmW4O2bOJaR8neJ54fzeFYXtFYEXRF/XbIh2KdnCy2LoywT9ux8ndzE0k
 1tsjtv0g4y84IcYfrxXPRTuhh2GO2pHw5L1kGVRezJg2ODSFbpdzGtcVK7SIrs2S
 eijTViqdi9xRgfj1jPqRrvxC99RL3/fmCztqorAPLDFsqYAd/6ZRxZ7+IcZ2h4+J
 cJ0Z6Wx6eh10roacZPXweH13XJ7xWO/ublYZvQFQpK2BAKyO98aXGgLDraNt8k60
 X3DZLSKkGB/eBlNeAlTtcrXec/ot6XGJPKr3b/7zhwfMi8B13RGdSmCR8SxMdRQM
 vCQO4G2YadU4YFS6FFIw9Wc1XDYUuYh2YgcveafjzjXbgi7NnY7rYOxtnTgBi0Xv
 XGjtGqpvD676gPm+8b3DcwqmWI3c/WUdtQIZ1uYRCFZdFqkVP91bySPT2aHtx2GO
 4j3uEyTlypC00kyvu1oL3+tVUG/EFlJCpYvIbOwqDG2m7KWPStzpfJTD5Q9cdlEl
 fdgs6l82EVqe1YyjLTqajDuOcRrLYK2hlR/5STc03hQV+GpKSo5UypRejzE9WtRV
 zT/tyelqhj4+0EZJz4ay/8q9s2Jp+5JGVxoVvjujSuH7+Ulb3T+IDkldtMamO8Fm
 www2y0/fLfU2xIapMJdCoJ+ZKgel2i8RZMPIc0cIfO5ITXm+dOs=
 =hwXx
 -----END PGP SIGNATURE-----

Merge tag 'nfsd-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd updates from Chuck Lever:
 "Jeff Layton contributed an implementation of NFSv4.2+ attribute
  delegation, as described here:

    https://www.ietf.org/archive/id/draft-ietf-nfsv4-delstid-08.html

  This interoperates with similar functionality introduced into the
  Linux NFS client in v6.11. An attribute delegation permits an NFS
  client to manage a file's mtime, rather than flushing dirty data to
  the NFS server so that the file's mtime reflects the last write, which
  is considerably slower.

  Neil Brown contributed dynamic NFSv4.1 session slot table resizing.
  This facility enables NFSD to increase or decrease the number of slots
  per NFS session depending on server memory availability. More session
  slots means greater parallelism.

  Chuck Lever fixed a long-standing latent bug where NFSv4 COMPOUND
  encoding screws up when crossing a page boundary in the encoding
  buffer. This is a zero-day bug, but hitting it is rare and depends on
  the NFS client implementation. The Linux NFS client does not happen to
  trigger this issue.

  A variety of bug fixes and other incremental improvements fill out the
  list of commits in this release. Great thanks to all contributors,
  reviewers, testers, and bug reporters who participated during this
  development cycle"

* tag 'nfsd-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (42 commits)
  sunrpc: Remove gss_{de,en}crypt_xdr_buf deadcode
  sunrpc: Remove gss_generic_token deadcode
  sunrpc: Remove unused xprt_iter_get_xprt
  Revert "SUNRPC: Reduce thread wake-up rate when receiving large RPC messages"
  nfsd: implement OPEN_ARGS_SHARE_ACCESS_WANT_OPEN_XOR_DELEGATION
  nfsd: handle delegated timestamps in SETATTR
  nfsd: add support for delegated timestamps
  nfsd: rework NFS4_SHARE_WANT_* flag handling
  nfsd: add support for FATTR4_OPEN_ARGUMENTS
  nfsd: prepare delegation code for handing out *_ATTRS_DELEG delegations
  nfsd: rename NFS4_SHARE_WANT_* constants to OPEN4_SHARE_ACCESS_WANT_*
  nfsd: switch to autogenerated definitions for open_delegation_type4
  nfs_common: make include/linux/nfs4.h include generated nfs4_1.h
  nfsd: fix handling of delegated change attr in CB_GETATTR
  SUNRPC: Document validity guarantees of the pointer returned by reserve_space
  NFSD: Insulate nfsd4_encode_fattr4() from page boundaries in the encode buffer
  NFSD: Insulate nfsd4_encode_secinfo() from page boundaries in the encode buffer
  NFSD: Refactor nfsd4_do_encode_secinfo() again
  NFSD: Insulate nfsd4_encode_readlink() from page boundaries in the encode buffer
  NFSD: Insulate nfsd4_encode_read_plus_data() from page boundaries in the encode buffer
  ...
 2025-01-27 17:27:24 -08:00
Linus Torvalds
9629d83f05 - fix a spelling error in dm-raid 
- change kzalloc to kcalloc
 
 - remove useless test in alloc_multiple_bios
 
 - disable REQ_NOWAIT for flushes
 
 - dm-transaction-manager: use red-black trees instead of linear lists
 
 - atomic writes support for dm-linear, dm-stripe and dm-mirror
 
 - dm-crypt: code cleanups and two bugfixes
 -----BEGIN PGP SIGNATURE-----
 
 iIoEABYIADIWIQRnH8MwLyZDhyYfesYTAyx9YGnhbQUCZ5dX9RQcbXBhdG9ja2FA
 cmVkaGF0LmNvbQAKCRATAyx9YGnhba9VAP97UEbvgxZU4UnysTZc+4t9eUlmWmmU
 Tf/ERJGoi/nKXQEAr//Zj5oDLBxd80hgR8iDqLeG3L/QH8vMd8IxLwWJQg8=
 =pRsj
 -----END PGP SIGNATURE-----

Merge tag 'for-6.14/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper updates from Mikulas Patocka:

 - fix a spelling error in dm-raid

 - change kzalloc to kcalloc

 - remove useless test in alloc_multiple_bios

 - disable REQ_NOWAIT for flushes

 - dm-transaction-manager: use red-black trees instead of linear lists

 - atomic writes support for dm-linear, dm-stripe and dm-mirror

 - dm-crypt: code cleanups and two bugfixes

* tag 'for-6.14/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm-crypt: track tag_offset in convert_context
  dm-crypt: don't initialize cc_sector again
  dm-crypt: don't update io->sector after kcryptd_crypt_write_io_submit()
  dm-crypt: use bi_sector in bio when initialize integrity seed
  dm-crypt: fully initialize clone->bi_iter in crypt_alloc_buffer()
  dm-crypt: set atomic as false when calling crypt_convert() in kworker
  dm-mirror: Support atomic writes
  dm-io: Warn on creating multiple atomic write bios for a region
  dm-stripe: Enable atomic writes
  dm-linear: Enable atomic writes
  dm: Ensure cloned bio is same length for atomic write
  dm-table: atomic writes support
  dm-transaction-manager: use red-black trees instead of linear lists
  dm: disable REQ_NOWAIT for flushes
  dm: remove useless test in alloc_multiple_bios
  dm: change kzalloc to kcalloc
  dm raid: fix spelling errors in raid_ctr()
 2025-01-27 17:06:42 -08:00
Linus Torvalds
13845bdc86 Char/Misc/IIO driver updates for 6.14-rc1 
Here is the "big" set of char/misc/iio and other smaller driver
 subsystem updates for 6.14-rc1.  Loads of different things in here this
 development cycle, highlights are:
   - ntsync "driver" to handle Windows locking types enabling Wine to
     work much better on many workloads (i.e. games).  The driver
     framework was in 6.13, but now it's enabled and fully working
     properly.  Should make many SteamOS users happy.  Even comes with
     tests!
   - Large IIO driver updates and bugfixes
   - FPGA driver updates
   - Coresight driver updates
   - MHI driver updates
   - PPS driver updatesa
   - const bin_attribute reworking for many drivers
   - binder driver updates
   - smaller driver updates and fixes
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCZ5fGOQ8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ynatACeLlbkhUT544Va1eOL2TkjfcGxrZUAoJ3ymGC0
 y0N7/+fWL6aS+b4sEilv
 =TU0D
 -----END PGP SIGNATURE-----

Merge tag 'char-misc-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull Char/Misc/IIO driver updates from Greg KH:
 "Here is the "big" set of char/misc/iio and other smaller driver
  subsystem updates for 6.14-rc1. Loads of different things in here this
  development cycle, highlights are:

   - ntsync "driver" to handle Windows locking types enabling Wine to
     work much better on many workloads (i.e. games). The driver
     framework was in 6.13, but now it's enabled and fully working
     properly. Should make many SteamOS users happy. Even comes with
     tests!

   - Large IIO driver updates and bugfixes

   - FPGA driver updates

   - Coresight driver updates

   - MHI driver updates

   - PPS driver updatesa

   - const bin_attribute reworking for many drivers

   - binder driver updates

   - smaller driver updates and fixes

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (311 commits)
  ntsync: Fix reference leaks in the remaining create ioctls.
  spmi: hisi-spmi-controller: Drop duplicated OF node assignment in spmi_controller_probe()
  spmi: Set fwnode for spmi devices
  ntsync: fix a file reference leak in drivers/misc/ntsync.c
  scripts/tags.sh: Don't tag usages of DECLARE_BITMAP
  dt-bindings: interconnect: qcom,msm8998-bwmon: Add SM8750 CPU BWMONs
  dt-bindings: interconnect: OSM L3: Document sm8650 OSM L3 compatible
  dt-bindings: interconnect: qcom-bwmon: Document QCS615 bwmon compatibles
  interconnect: sm8750: Add missing const to static qcom_icc_desc
  memstick: core: fix kernel-doc notation
  intel_th: core: fix kernel-doc warnings
  binder: log transaction code on failure
  iio: dac: ad3552r-hs: clear reset status flag
  iio: dac: ad3552r-common: fix ad3541/2r ranges
  iio: chemical: bme680: Fix uninitialized variable in __bme680_read_raw()
  misc: fastrpc: Fix copy buffer page size
  misc: fastrpc: Fix registered buffer page address
  misc: fastrpc: Deregister device nodes properly in error scenarios
  nvmem: core: improve range check for nvmem_cell_write()
  nvmem: qcom-spmi-sdam: Set size in struct nvmem_config
  ...
 2025-01-27 16:51:51 -08:00
Linus Torvalds
cc8b10fa70 USB / Thunderbolt driver updates for 6.14-rc1 
Here is the USB and Thunderbolt driver updates for 6.14-rc1.  Nothing
 huge in here, just lots of new hardware support and updates for existing
 drivers.  Changes here are:
   - big gadget f_tcm driver update
   - other gadget driver updates and fixes
   - thunderbolt driver updates for new hardware and capabilities and
     lots more debugging functionality to handle it when things aren't
     working well.
   - xhci driver updates
   - new USB-serial device updates
   - typec driver updates, including a chrome platform driver (acked by
     the subsystem maintainers)
   - other small driver updates
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCZ5fI8A8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+yloPwCguHSvL8FM6Xwaxc/hdfalwI4c49AAnRECaMhR
 mA1owvXgrKO3hjDHo2Sg
 =Z5yt
 -----END PGP SIGNATURE-----

Merge tag 'usb-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / Thunderbolt driver updates from Greg KH:
 "Here is the USB and Thunderbolt driver updates for 6.14-rc1. Nothing
  huge in here, just lots of new hardware support and updates for
  existing drivers. Changes here are:

   - big gadget f_tcm driver update

   - other gadget driver updates and fixes

   - thunderbolt driver updates for new hardware and capabilities and
     lots more debugging functionality to handle it when things aren't
     working well.

   - xhci driver updates

   - new USB-serial device updates

   - typec driver updates, including a chrome platform driver (acked by
     the subsystem maintainers)

   - other small driver updates

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (123 commits)
  usb: hcd: Bump local buffer size in rh_string()
  Revert "usb: gadget: u_serial: Disable ep before setting port to null to fix the crash caused by port being null"
  usb: typec: tcpci: Prevent Sink disconnection before vPpsShutdown in SPR PPS
  usb: xhci: tegra: Fix OF boolean read warning
  usb: host: xhci-plat: add support compatible ID PNP0D15
  usb: typec: ucsi: Add a macro definition for UCSI v1.0
  usb: dwc3: core: Defer the probe until USB power supply ready
  usbip: Correct format specifier for seqnum from %d to %u
  usbip: Fix seqnum sign extension issue in vhci_tx_urb
  dt-bindings: usb: snps,dwc3: Split core description
  usb: quirks: Add NO_LPM quirk for TOSHIBA TransMemory-Mx device
  usb: dwc3: gadget: Reinitiate stream for all host NoStream behavior
  USB: Use str_enable_disable-like helpers
  USB: gadget: Use str_enable_disable-like helpers
  USB: phy: Use str_enable_disable-like helpers
  USB: typec: Use str_enable_disable-like helpers
  USB: host: Use str_enable_disable-like helpers
  USB: Replace own str_plural with common one
  USB: serial: quatech2: fix null-ptr-deref in qt2_process_read_urb()
  usb: phy: Remove API devm_usb_put_phy()
  ...
 2025-01-27 16:29:16 -08:00
Al Viro
30d61efe11 9p: fix ->rename_sem exclusion 
9p wants to be able to build a path from given dentry to fs root and keep
it valid over a blocking operation.

->s_vfs_rename_mutex would be a natural candidate, but there are places
where we need that and where we have no way to tell if ->s_vfs_rename_mutex
is already held deeper in callchain.  Moreover, it's only held for
cross-directory renames; name changes within the same directory happen
without it.

Solution:
	* have d_move() done in ->rename() rather than in its caller
	* maintain a 9p-private rwsem (per-filesystem)
	* hold it exclusive over the relevant part of ->rename()
	* hold it shared over the places where we want the path.

That almost works.  FS_RENAME_DOES_D_MOVE is enough to put all d_move()
and d_exchange() calls under filesystem's control.  However, there's
also __d_unalias(), which isn't covered by any of that.

If ->lookup() hits a directory inode with preexisting dentry elsewhere
(due to e.g. rename done on server behind our back), d_splice_alias()
called by ->lookup() will move/rename that alias.

Add a couple of optional methods, so that __d_unalias() would do
	if alias->d_op->d_unalias_trylock != NULL
		if (!alias->d_op->d_unalias_trylock(alias))
			fail (resulting in -ESTALE from lookup)
	__d_move(...)
	if alias->d_op->d_unalias_unlock != NULL
		alias->d_unalias_unlock(alias)
where it currently does __d_move().  9p instances do down_write_trylock()
and up_write() of ->rename_mutex.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2025-01-27 19:25:24 -05:00
Al Viro
ffeeaada2b nfs: fix ->d_revalidate() UAF on ->d_name accesses 
Pass the stable name all the way down to ->rpc_ops->lookup() instances.

Note that passing &dentry->d_name is safe in e.g. nfs_lookup() - it *is*
stable there, as it is in ->create() et.al.

dget_parent() in nfs_instantiate() should be redundant - it'd better be
stable there; if it's not, we have more trouble, since ->d_name would
also be unsafe in such case.

nfs_submount() and nfs4_submount() may or may not require fixes - if
they ever get moved on server with fhandle preserved, we are in trouble
there...

UAF window is fairly narrow here and exfiltration requires the ability
to watch the traffic.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2025-01-27 19:25:24 -05:00
Al Viro
5be1fa8abd Pass parent directory inode and expected name to ->d_revalidate() 
->d_revalidate() often needs to access dentry parent and name; that has
to be done carefully, since the locking environment varies from caller
to caller.  We are not guaranteed that dentry in question will not be
moved right under us - not unless the filesystem is such that nothing
on it ever gets renamed.

It can be dealt with, but that results in boilerplate code that isn't
even needed - the callers normally have just found the dentry via dcache
lookup and want to verify that it's in the right place; they already
have the values of ->d_parent and ->d_name stable.  There is a couple
of exceptions (overlayfs and, to less extent, ecryptfs), but for the
majority of calls that song and dance is not needed at all.

It's easier to make ecryptfs and overlayfs find and pass those values if
there's a ->d_revalidate() instance to be called, rather than doing that
in the instances.

This commit only changes the calling conventions; making use of supplied
values is left to followups.

NOTE: some instances need more than just the parent - things like CIFS
may need to build an entire path from filesystem root, so they need
more precautions than the usual boilerplate.  This series doesn't
do anything to that need - these filesystems have to keep their locking
mechanisms (rename_lock loops, use of dentry_path_raw(), private rwsem
a-la v9fs).

One thing to keep in mind when using name is that name->name will normally
point into the pathname being resolved; the filename in question occupies
name->len bytes starting at name->name, and there is NUL somewhere after it,
but it the next byte might very well be '/' rather than '\0'.  Do not
ignore name->len.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Gabriel Krisman Bertazi <gabriel@krisman.be>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2025-01-27 19:25:23 -05:00
Linus Torvalds
078eac2b5b pwm: Two fixes for the pwm core and the pwm-microchip-core driver 
Conor Dooley found and fixed a problem in the pwm-microchip-core driver
 that existed since the driver's birth in v6.5-rc1. It's about a corner
 case that only happens if two pwm devices of the same chip are set to
 the same long period.
 
 The other problem is about the new pwm API that currently is only
 supported by two hardware drivers. The fix prevents a NULL pointer
 exception if one of the new functions is called for a pwm device with a
 driver that only provides the old callbacks.
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCgAdFiEEP4GsaTp6HlmJrf7Tj4D7WH0S/k4FAmeXs+8ACgkQj4D7WH0S
 /k4zqQgAs6b6PWu99Bh59WbLtqdpo3GfBrxXEGajYfG/rl/WCqTaaR0drQGE+Mlz
 oqJrJ9klO02JcnPh7tyUi8oIDGm+zJ5Y6au60Ry5aDvZCh370RlXWrqaVJO9dK1k
 rWfko7rI2/7LFmrpn9Ass/RNjWcL2c/7C9b+NiXfrHlcgdSq49tjBziN6adCOnrF
 NtOjnAD9jalVxHEaS9z3rhdE714XLvR/NtevzQX5fp9rZylENKrVta0FZnJMX7uD
 OE6OhsxSyo4nuVpHgL9YLg45JTgzHzIyCJ+GTO0Cjk9oD1UHBKxiv2zOw5j4tBt4
 PAQ/yZ10kwJ9IF4j8bxTFYg3PLItLQ==
 =EWDl
 -----END PGP SIGNATURE-----

Merge tag 'pwm/for-6.14-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux

Pull pwm fixes from Uwe Kleine-König:
 "Two fixes.

  Conor Dooley found and fixed a problem in the pwm-microchip-core
  driver that existed since the driver's birth in v6.5-rc1. It's about a
  corner case that only happens if two pwm devices of the same chip are
  set to the same long period.

  The other problem is about the new pwm API that currently is only
  supported by two hardware drivers. The fix prevents a NULL pointer
  exception if one of the new functions is called for a pwm device with
  a driver that only provides the old callbacks"

* tag 'pwm/for-6.14-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux:
  pwm: Ensure callbacks exist before calling them
  pwm: microchip-core: fix incorrect comparison with max period
 2025-01-27 15:45:29 -08:00
Linus Torvalds
f28f489045 power supply and reset changes for the 6.14 series 
* power-supply core
   - introduce power supply extensions, which allows adding properties to
     a power supply device from a separate driver. This will be used
     initially to extend the generic ACPI charger/battery driver with
     vendor extensions for charge thresholds.
   - convert all drivers from power_supply_for_each_device to new
     power_supply_for_each_psy(), which avoids lots of casting being
     done in the drivers.
   - avoid LED trigger like values in uevent for POWER_SUPPLY_PROP_CHARGE_BEHAVIOUR
   - introduce POWER_SUPPLY_PROP_CHARGE_TYPES, which is similar to the
     POWER_SUPPLY_PROP_CHARGE_TYPE property, but also lists the available
     options on the specific platform
 
  * power-supply drivers
   - dell-laptop: use new power_supply_charge_types_show/_parse helpers
   - stc3117: new driver for equally named fuel gauge chip
   - bq24190: add support for new POWER_SUPPLY_PROP_CHARGE_TYPES
   - bq24190: add BQ24297 support
   - bq27xxx: add voltage min design for bq27000/bq27200
   - cros_charge-control: convert to new power supply extension API
   - multiple drivers: constify 'struct bin_attribute'
   - ds2782: convert to device managed resources
   - max1720x: add charge full property
   - max1720x: support extra thermistor temperatures
   - max17042: add max77705 support
   - ip5xxx-power: add support for IP5306
   - ltc4162-l-charger: add ltc4162-f/s and ltc4015 support
   - gpio-charger: support for default charge current limit
   - misc. small cleanups and fixes
 
  * reset drivers
   - at91-poweroff: add sam9x7 support
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE72YNB0Y/i3JqeVQT2O7X88g7+poFAmeWnUkACgkQ2O7X88g7
 +pqTPQ/9HXCZQdf+JmcBVrdDfL9Ud/onfQN4iQFaft27yb8808YcXCjlorehdd9p
 rHmKxUzKSLjf2OeTLzIMx9I7Yh0UksLlL1FMSthUOpCvd5TIu1ifwW/VGX1Vif7h
 cNOIImg3H4m7qiycXZJIPMgj2PlkCG4sZ9cPO6uOCfkXJdKOsHUa+4sv6WENB8om
 sFn2dV0oR4NiMy5deX8O+gLDuHotKv2nsAXBKcTlgsNBJPLBGhqiPRJwTKBH5HC2
 B43OTEJ7gwE+IMkf4S5PkRCZS9C4zKVGPYigs8MP06R27UH8u1OZf/yW4eYkqucC
 ITIMKQcedInnLnueVnAv0mjmdMKdTXYZajqlOt8H9/c8ZwiWSSgAXtXqm8jyqWKL
 /FIFOd4EVBOKRLmxIUSm4izKHI1mvW9qYRF30oHSSXc9zizu8EeZGzlXwDPkATXs
 hcLHc0HbQduZ6Rf8WfjeQlypR7dD/6ikmvFP56FmntzO4RZ7i0lrAbV3AmZi9VlS
 fQCTN5cbZGDHV2miv7AZYI09P1VhptVVv+Kttwk2KXI1St1k8fuNqLy2BpmnqVwZ
 3qw9q2yuFJvApr6Xz6DTdGIFdY5pChE1g7MFJQm8MJOE06i0QM5AdJG1aN2+7zop
 qUtHraAQEDFsl3QvFBUavE6wN9LLWIB3w60CQ0M2fX0jrDd2m/U=
 =dx5S
 -----END PGP SIGNATURE-----

Merge tag 'for-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:
 "Power-supply core:

   - introduce power supply extensions, which allows adding properties
     to a power supply device from a separate driver. This will be used
     initially to extend the generic ACPI charger/battery driver with
     vendor extensions for charge thresholds.

   - convert all drivers from power_supply_for_each_device to new
     power_supply_for_each_psy(), which avoids lots of casting being
     done in the drivers.

   - avoid LED trigger like values in uevent for
     POWER_SUPPLY_PROP_CHARGE_BEHAVIOUR

   - introduce POWER_SUPPLY_PROP_CHARGE_TYPES, which is similar to the
     POWER_SUPPLY_PROP_CHARGE_TYPE property, but also lists the
     available options on the specific platform

  Power-supply drivers

   - dell-laptop: use new power_supply_charge_types_show/_parse helpers

   - stc3117: new driver for equally named fuel gauge chip

   - bq24190: add support for new POWER_SUPPLY_PROP_CHARGE_TYPES

   - bq24190: add BQ24297 support

   - bq27xxx: add voltage min design for bq27000/bq27200

   - cros_charge-control: convert to new power supply extension API

   - multiple drivers: constify 'struct bin_attribute'

   - ds2782: convert to device managed resources

   - max1720x: add charge full property

   - max1720x: support extra thermistor temperatures

   - max17042: add max77705 support

   - ip5xxx-power: add support for IP5306

   - ltc4162-l-charger: add ltc4162-f/s and ltc4015 support

   - gpio-charger: support for default charge current limit

   - misc small cleanups and fixes

  Reset drivers:

   - at91-poweroff: add sam9x7 support"

* tag 'for-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (77 commits)
  power: supply: max1720x: add support for reading internal and thermistor temperatures
  power: supply: ltc4162l: Use GENMASK macro in bitmask operation
  power: supply: max17042: add max77705 fuel gauge support
  dt-bindings: power: supply: max17042: add max77705 support
  power: supply: add undervoltage health status property
  power: supply: max17042: add platform driver variant
  power: supply: max17042: make interrupt shared
  power: reset: keystone: Use syscon_regmap_lookup_by_phandle_args
  power: supply: Use str_enable_disable-like helpers
  platform/x86: dell-laptop: Use power_supply_charge_types_show/_parse() helpers
  power: supply: bq2415x_charger: Immediately reschedule delayed work on notifier events
  power: supply: Add STC3117 fuel gauge unit driver
  dt-bindings: power: supply: Add STC3117 Fuel Gauge
  power: supply: ug3105_battery: Let the core handle POWER_SUPPLY_PROP_TECHNOLOGY
  power: supply: gpio-charger: add support for default charge current limit
  dt-bindings: power: supply: gpio-charger: add support for default charge current limit
  power: supply: Use power_supply_external_power_changed() in __power_supply_changed_work()
  power: supply: core: fix build of extension sysfs group if CONFIG_SYSFS=n
  power: supply: bq2415x_charger: report charging state changes to userspace
  bq27xxx: add voltage min design for bq27000 and bq27200
  ...
 2025-01-27 15:37:16 -08:00
Linus Torvalds
deee7487f5 virtio: features, fixes, cleanups 
A small number of improvements all over the place:
 
 vdpa/octeon gained support for multiple interrupts
 virtio-pci gained support for error recovery
 vp_vdpa gained support for notification with data
 vhost/net has been fixed to set num_buffers for spec compliance
 virtio-mem now works with kdump on s390
 
 Small cleanups all over the place.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAmeXnAsPHG1zdEByZWRo
 YXQuY29tAAoJECgfDbjSjVRpbsYH/0gfvGFBrILN3O06cWtm/ZEny6U86o3imvxm
 5tBYOu/gh7yFqPHb3ywwz0Xy8Sty8zdIGVcod6+ioiS5JxV4m75/8eODZZHK/O+g
 W+2ozgRFm07RIQX8qQxfN6MURTEw9GHWLPqHfLopbQtoKJbD0NpWnm272xlJkox2
 SzuHJ2D1Sg3ItcRr0x1TVsjefQKUHFduS/nt2WfQWjCnEXEbCx3S+Jp6oFCoub6L
 zgI6RLim9HdScgo5lXzbWEyJ4fEjWOypO3Z5IEXls8ZP/OEueCHZX3eZmfgbbfhP
 /uCPhoIxHe4PJBFDRKogdNyV40Iq8LvF7RzhOtJjS7GFlf1bipM=
 =PM05
 -----END PGP SIGNATURE-----

Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio updates from Michael Tsirkin:
 "A small number of improvements all over the place:

   - vdpa/octeon support for multiple interrupts

   - virtio-pci support for error recovery

   - vp_vdpa support for notification with data

   - vhost/net fix to set num_buffers for spec compliance

   - virtio-mem now works with kdump on s390

  And small cleanups all over the place"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (23 commits)
  virtio_blk: Add support for transport error recovery
  virtio_pci: Add support for PCIe Function Level Reset
  vhost/net: Set num_buffers for virtio 1.0
  vdpa/octeon_ep: read vendor-specific PCI capability
  virtio-pci: define type and header for PCI vendor data
  vdpa/octeon_ep: handle device config change events
  vdpa/octeon_ep: enable support for multiple interrupts per device
  vdpa: solidrun: Replace deprecated PCI functions
  s390/kdump: virtio-mem kdump support (CONFIG_PROC_VMCORE_DEVICE_RAM)
  virtio-mem: support CONFIG_PROC_VMCORE_DEVICE_RAM
  virtio-mem: remember usable region size
  virtio-mem: mark device ready before registering callbacks in kdump mode
  fs/proc/vmcore: introduce PROC_VMCORE_DEVICE_RAM to detect device RAM ranges in 2nd kernel
  fs/proc/vmcore: factor out freeing a list of vmcore ranges
  fs/proc/vmcore: factor out allocating a vmcore range and adding it to a list
  fs/proc/vmcore: move vmcore definitions out of kcore.h
  fs/proc/vmcore: prefix all pr_* with "vmcore:"
  fs/proc/vmcore: disallow vmcore modifications while the vmcore is open
  fs/proc/vmcore: replace vmcoredd_mutex by vmcore_mutex
  fs/proc/vmcore: convert vmcore_cb_lock into vmcore_mutex
  ...
 2025-01-27 15:26:06 -08:00
Jakub Kicinski
463ec95a16 ipsec-2025-01-27 
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEH7ZpcWbFyOOp6OJbrB3Eaf9PW7cFAmeXIF4ACgkQrB3Eaf9P
 W7fRMA/+Js2x0HNA3+6SMb5nJzY6lywi1BIRAzstyfd6EsxbHlgfdWYCCpixboA0
 /ZfDe7yPND/ewPIQLT9eO6hk9YzuAVhYUkdIcDC5jdFDNbh9dDqBdyu5P/5spsi9
 9SdFEucoOsKBP4ejmSvtwGsVNIf/1vB8hFqYxB+vh8+d/g8PHrI3xxk+2b7KkIGS
 ms+IyDCoVdCGQUOp4BGtEQbzXtx67diH5dcfwg8/DJpSMbfqO3ZFRG7gPu8C5Igt
 cxVSCW67rv/zzPkGPv8B+nczAdVUZ3OFXgEWxdDCN/mUbFKwxUcIDxZVJMfBBAUP
 lcjsbzmNfj2PNMLZFe/5LuU6o+sFEZdxmTPmvbb+lSYrRHx2oz2/Jb871gEj8rTC
 vNZ+1Lu1k7QRjEPiO1fe85vWdmU4G81+WAzC88nD0KYLDUN4c+MmxUFQkKbAxf6p
 e6VCihcKqi5Sa6R73Ohm87iyiSuv8WvkyVSM0XgQrkXWDFy5Jp2Bo25pW0QgVxK+
 l/aHhDA+YHFEOZTcjZsh/EdKlQRIxBNJ3ualITkjd2T+A1WyWm0A3S+kYZQCKqiM
 WGGWM3oVNXkUAaRxvURNvmXqO+hPeKfIElDeVrOUjG8zQ+EktKcg4KpDQb2BGJCj
 s9ksFj0pplR4GHxUrFmkEPxJWYKpFqUYCZMJDnBnHFm1ykC7QGM=
 =pg+h
 -----END PGP SIGNATURE-----

Merge tag 'ipsec-2025-01-27' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec

Steffen Klassert says:

====================
pull request (net): ipsec 2025-01-27

1) Fix incrementing the upper 32 bit sequence numbers for GSO skbs.
   From Jianbo Liu.

2) Fix an out-of-bounds read on xfrm state lookup.
   From Florian Westphal.

3) Fix secpath handling on packet offload mode.
   From Alexandre Cassen.

4) Fix the usage of skb->sk in the xfrm layer.

5) Don't disable preemption while looking up cache state
   to fix PREEMPT_RT.
   From Sebastian Sewior.

* tag 'ipsec-2025-01-27' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec:
  xfrm: Don't disable preemption while looking up cache state.
  xfrm: Fix the usage of skb->sk
  xfrm: delete intermediate secpath entry in packet offload mode
  xfrm: state: fix out-of-bounds read during lookup
  xfrm: replay: Fix the update of replay_esn->oseq_hi for GSO
====================

Link: https://patch.msgid.link/20250127060757.3946314-1-steffen.klassert@secunet.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2025-01-27 15:15:12 -08:00
Jakub Kicinski
67e4bb2ced net: page_pool: don't try to stash the napi id 
Page ppol tried to cache the NAPI ID in page pool info to avoid
having a dependency on the life cycle of the NAPI instance.
Since commit under Fixes the NAPI ID is not populated until
napi_enable() and there's a good chance that page pool is
created before NAPI gets enabled.

Protect the NAPI pointer with the existing page pool mutex,
the reading path already holds it. napi_id itself we need
to READ_ONCE(), it's protected by netdev_lock() which are
not holding in page pool.

Before this patch napi IDs were missing for mlx5:

 # ./cli.py --spec netlink/specs/netdev.yaml --dump page-pool-get

 [{'id': 144, 'ifindex': 2, 'inflight': 3072, 'inflight-mem': 12582912},
  {'id': 143, 'ifindex': 2, 'inflight': 5568, 'inflight-mem': 22806528},
  {'id': 142, 'ifindex': 2, 'inflight': 5120, 'inflight-mem': 20971520},
  {'id': 141, 'ifindex': 2, 'inflight': 4992, 'inflight-mem': 20447232},
  ...

After:

 [{'id': 144, 'ifindex': 2, 'inflight': 3072, 'inflight-mem': 12582912,
   'napi-id': 565},
  {'id': 143, 'ifindex': 2, 'inflight': 4224, 'inflight-mem': 17301504,
   'napi-id': 525},
  {'id': 142, 'ifindex': 2, 'inflight': 4288, 'inflight-mem': 17563648,
   'napi-id': 524},
  ...

Fixes: 86e25f40aa ("net: napi: Add napi_config")
Reviewed-by: Mina Almasry <almasrymina@google.com>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://patch.msgid.link/20250123231620.1086401-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2025-01-27 14:37:41 -08:00
谢致邦 (XIE Zhibang)
09ebd028d6 net: the appletalk subsystem no longer uses ndo_do_ioctl 
ndo_do_ioctl is no longer used by the appletalk subsystem after commit
45bd1c5ba7 ("net: appletalk: Drop aarp_send_probe_phase1()").

Signed-off-by: 谢致邦 (XIE Zhibang) <Yeking@Red54.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/tencent_4AC6ED413FEA8116B4253D3ED6947FDBCF08@qq.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2025-01-27 14:07:19 -08:00
Linus Torvalds
816cef980d ARM updates for 6.14-rc1 
- fix typos in vfpmodule.c
 - drop obsolete VFP accessor fallback for old assemblers
 - add cache line identifier register accessor functions
 - add cacheinfo support
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEuNNh8scc2k/wOAE+9OeQG+StrGQFAmeRWzMACgkQ9OeQG+St
 rGSUig//cTk0/qogNxXPnstcqli+eoYWxpBjvgjLgGFyIS8VNQufhdDSJWjz6/bI
 I4fCnh0KXL18Vd2L5/TyoMDSAIJwYEIXfhvQD/fQSrd/Z2pq82DVIqeAJPnJ90UU
 sP0o/PqRQe14VcI+HKx/Y0UivbfpOb0mCeBjX8TYwZxtHZSHhhN4M5xPVTNrnonD
 LNwJG1GWAaYtFRtSwGEbFHDvBw1QxNhBm5sHvU3yfpPiz2zC5NPdD1iglXHmy1RA
 fIkd7hMDCXEAKIKsr1almr9Iqn/2hROGpRJNQKRlHFxWfnHREecs5/LA9lTpkCIW
 gjc8IcfKybgDHgjMYX6uShFdvcDso7LBfPURjA8e7Y0uea44UrR2b8e9JcKvBZod
 EV0GJ7GeJf8zhji+pJ5t9ry6OA8P2mVdpJGCG4l0tc++uANmE1AZWhnzTOLuCJaZ
 TbSnR7KQijk4fNWCTLc5FrJLBXosPbvXgf6jaKnE5tCYbTJxDS+kNF6iiw25AV2M
 uWhl1wBTOJwjZg3MY6PX+wRnntGyQ7k5e+KuX21vBE1/xL0H+LPEPFpnzeBAhQk9
 1QSMmiPb5LDO6Ysr6V+FpTrte1bSW17CMjhL+YH4fd5WLZJcU0Gd9Td3oTF2GOpQ
 wBXoufCfztmc4w7YnqmNQJ7bVQS/7JiG4a1js6bQmiYSwW5q5u4=
 =YhUg
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux

Pull ARM updates from Russell King:

 - fix typos in vfpmodule.c

 - drop obsolete VFP accessor fallback for old assemblers

 - add cache line identifier register accessor functions

 - add cacheinfo support

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux:
  ARM: 9440/1: cacheinfo fix format field mask
  ARM: 9433/2: implement cacheinfo support
  ARM: 9432/2: add CLIDR accessor functions
  ARM: 9438/1: assembler: Drop obsolete VFP accessor fallback
  ARM: 9437/1: vfp: Fix typographical errors in vfpmodule.c
 2025-01-27 08:50:19 -08:00
Israel Rukshin
a0ec4fb63f virtio_pci: Add support for PCIe Function Level Reset 
Implement support for Function Level Reset (FLR) in virtio_pci devices.
This change adds reset_prepare and reset_done callbacks, allowing
drivers to properly handle FLR operations.

Without this patch, performing and recovering from an FLR is not possible
for virtio_pci devices. This implementation ensures proper FLR handling
and recovery for both physical and virtual functions.

The device reset can be triggered in case of error or manually via
sysfs:
echo 1 > /sys/bus/pci/devices/$PCI_ADDR/reset

Signed-off-by: Israel Rukshin <israelr@nvidia.com>
Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Message-Id: <1732690652-3065-2-git-send-email-israelr@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2025-01-27 09:39:26 -05:00
Shijith Thotton
1629ee1078 virtio-pci: define type and header for PCI vendor data 
Added macro definition for VIRTIO_PCI_CAP_VENDOR_CFG to identify the PCI
vendor data type in the virtio_pci_cap structure. Defined a new struct
virtio_pci_vndr_data for the vendor data capability header as per the
specification.

Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Shijith Thotton <sthotton@marvell.com>
Message-Id: <20250103153226.1933479-3-sthotton@marvell.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2025-01-27 09:39:25 -05:00
David Hildenbrand
7ad4d1f6e6 fs/proc/vmcore: introduce PROC_VMCORE_DEVICE_RAM to detect device RAM ranges in 2nd kernel 
s390 allocates+prepares the elfcore hdr in the dump (2nd) kernel, not in
the crashed kernel.

RAM provided by memory devices such as virtio-mem can only be detected
using the device driver; when vmcore_init() is called, these device
drivers are usually not loaded yet, or the devices did not get probed
yet. Consequently, on s390 these RAM ranges will not be included in
the crash dump, which makes the dump partially corrupt and is
unfortunate.

Instead of deferring the vmcore_init() call, to an (unclear?) later point,
let's reuse the vmcore_cb infrastructure to obtain device RAM ranges as
the device drivers probe the device and get access to this information.

Then, we'll add these ranges to the vmcore, adding more PT_LOAD
entries and updating the offsets+vmcore size.

Use a separate Kconfig option to be set by an architecture to include this
code only if the arch really needs it. Further, we'll make the config
depend on the relevant drivers (i.e., virtio_mem) once they implement
support (next). The alternative of having a PROVIDE_PROC_VMCORE_DEVICE_RAM
config option was dropped for now for simplicity.

The current target use case is s390, which only creates an elf64
elfcore, so focusing on elf64 is sufficient.

Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20241204125444.1734652-9-david@redhat.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2025-01-27 09:39:19 -05:00
David Hildenbrand
e29e9acae0 fs/proc/vmcore: factor out freeing a list of vmcore ranges 
Let's factor it out into include/linux/crash_dump.h, from where we can
use it also outside of vmcore.c later.

Acked-by: Baoquan He <bhe@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20241204125444.1734652-8-david@redhat.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2025-01-27 09:39:16 -05:00
David Hildenbrand
e017b1f4aa fs/proc/vmcore: factor out allocating a vmcore range and adding it to a list 
Let's factor it out into include/linux/crash_dump.h, from where we can
use it also outside of vmcore.c later.

Acked-by: Baoquan He <bhe@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20241204125444.1734652-7-david@redhat.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2025-01-27 09:39:11 -05:00
David Hildenbrand
819403c893 fs/proc/vmcore: move vmcore definitions out of kcore.h 
These vmcore defines are not related to /proc/kcore, move them out.

We'll move "struct vmcoredd_node" to vmcore.c, because it is only used
internally. While "struct vmcore" is only used internally for now,
we're planning on using it from inline functions in crash_dump.h next,
so move it to crash_dump.h.

While at it, rename "struct vmcore" to "struct vmcore_range", which is a
more suitable name and will make the usage of it outside of vmcore.c
clearer.

Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20241204125444.1734652-6-david@redhat.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2025-01-27 09:39:07 -05:00
Linus Torvalds
9c5968db9e The various patchsets are summarized below. Plus of course many 
indivudual patches which are described in their changelogs.
 
 - "Allocate and free frozen pages" from Matthew Wilcox reorganizes the
   page allocator so we end up with the ability to allocate and free
   zero-refcount pages.  So that callers (ie, slab) can avoid a refcount
   inc & dec.
 
 - "Support large folios for tmpfs" from Baolin Wang teaches tmpfs to use
   large folios other than PMD-sized ones.
 
 - "Fix mm/rodata_test" from Petr Tesarik performs some maintenance and
   fixes for this small built-in kernel selftest.
 
 - "mas_anode_descend() related cleanup" from Wei Yang tidies up part of
   the mapletree code.
 
 - "mm: fix format issues and param types" from Keren Sun implements a
   few minor code cleanups.
 
 - "simplify split calculation" from Wei Yang provides a few fixes and a
   test for the mapletree code.
 
 - "mm/vma: make more mmap logic userland testable" from Lorenzo Stoakes
   continues the work of moving vma-related code into the (relatively) new
   mm/vma.c.
 
 - "mm/page_alloc: gfp flags cleanups for alloc_contig_*()" from David
   Hildenbrand cleans up and rationalizes handling of gfp flags in the page
   allocator.
 
 - "readahead: Reintroduce fix for improper RA window sizing" from Jan
   Kara is a second attempt at fixing a readahead window sizing issue.  It
   should reduce the amount of unnecessary reading.
 
 - "synchronously scan and reclaim empty user PTE pages" from Qi Zheng
   addresses an issue where "huge" amounts of pte pagetables are
   accumulated
   (https://lore.kernel.org/lkml/cover.1718267194.git.zhengqi.arch@bytedance.com/).
   Qi's series addresses this windup by synchronously freeing PTE memory
   within the context of madvise(MADV_DONTNEED).
 
 - "selftest/mm: Remove warnings found by adding compiler flags" from
   Muhammad Usama Anjum fixes some build warnings in the selftests code
   when optional compiler warnings are enabled.
 
 - "mm: don't use __GFP_HARDWALL when migrating remote pages" from David
   Hildenbrand tightens the allocator's observance of __GFP_HARDWALL.
 
 - "pkeys kselftests improvements" from Kevin Brodsky implements various
   fixes and cleanups in the MM selftests code, mainly pertaining to the
   pkeys tests.
 
 - "mm/damon: add sample modules" from SeongJae Park enhances DAMON to
   estimate application working set size.
 
 - "memcg/hugetlb: Rework memcg hugetlb charging" from Joshua Hahn
   provides some cleanups to memcg's hugetlb charging logic.
 
 - "mm/swap_cgroup: remove global swap cgroup lock" from Kairui Song
   removes the global swap cgroup lock.  A speedup of 10% for a tmpfs-based
   kernel build was demonstrated.
 
 - "zram: split page type read/write handling" from Sergey Senozhatsky
   has several fixes and cleaups for zram in the area of zram_write_page().
   A watchdog softlockup warning was eliminated.
 
 - "move pagetable_*_dtor() to __tlb_remove_table()" from Kevin Brodsky
   cleans up the pagetable destructor implementations.  A rare
   use-after-free race is fixed.
 
 - "mm/debug: introduce and use VM_WARN_ON_VMG()" from Lorenzo Stoakes
   simplifies and cleans up the debugging code in the VMA merging logic.
 
 - "Account page tables at all levels" from Kevin Brodsky cleans up and
   regularizes the pagetable ctor/dtor handling.  This results in
   improvements in accounting accuracy.
 
 - "mm/damon: replace most damon_callback usages in sysfs with new core
   functions" from SeongJae Park cleans up and generalizes DAMON's sysfs
   file interface logic.
 
 - "mm/damon: enable page level properties based monitoring" from
   SeongJae Park increases the amount of information which is presented in
   response to DAMOS actions.
 
 - "mm/damon: remove DAMON debugfs interface" from SeongJae Park removes
   DAMON's long-deprecated debugfs interfaces.  Thus the migration to sysfs
   is completed.
 
 - "mm/hugetlb: Refactor hugetlb allocation resv accounting" from Peter
   Xu cleans up and generalizes the hugetlb reservation accounting.
 
 - "mm: alloc_pages_bulk: small API refactor" from Luiz Capitulino
   removes a never-used feature of the alloc_pages_bulk() interface.
 
 - "mm/damon: extend DAMOS filters for inclusion" from SeongJae Park
   extends DAMOS filters to support not only exclusion (rejecting), but
   also inclusion (allowing) behavior.
 
 - "Add zpdesc memory descriptor for zswap.zpool" from Alex Shi
   "introduces a new memory descriptor for zswap.zpool that currently
   overlaps with struct page for now.  This is part of the effort to reduce
   the size of struct page and to enable dynamic allocation of memory
   descriptors."
 
 - "mm, swap: rework of swap allocator locks" from Kairui Song redoes and
   simplifies the swap allocator locking.  A speedup of 400% was
   demonstrated for one workload.  As was a 35% reduction for kernel build
   time with swap-on-zram.
 
 - "mm: update mips to use do_mmap(), make mmap_region() internal" from
   Lorenzo Stoakes reworks MIPS's use of mmap_region() so that
   mmap_region() can be made MM-internal.
 
 - "mm/mglru: performance optimizations" from Yu Zhao fixes a few MGLRU
   regressions and otherwise improves MGLRU performance.
 
 - "Docs/mm/damon: add tuning guide and misc updates" from SeongJae Park
   updates DAMON documentation.
 
 - "Cleanup for memfd_create()" from Isaac Manjarres does that thing.
 
 - "mm: hugetlb+THP folio and migration cleanups" from David Hildenbrand
   provides various cleanups in the areas of hugetlb folios, THP folios and
   migration.
 
 - "Uncached buffered IO" from Jens Axboe implements the new
   RWF_DONTCACHE flag which provides synchronous dropbehind for pagecache
   reading and writing.  To permite userspace to address issues with
   massive buildup of useless pagecache when reading/writing fast devices.
 
 - "selftests/mm: virtual_address_range: Reduce memory" from Thomas
   Weißschuh fixes and optimizes some of the MM selftests.
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZ5a+cwAKCRDdBJ7gKXxA
 jtoyAP9R58oaOKPJuTizEKKXvh/RpMyD6sYcz/uPpnf+cKTZxQEAqfVznfWlw/Lz
 uC3KRZYhmd5YrxU4o+qjbzp9XWX/xAE=
 =Ib2s
 -----END PGP SIGNATURE-----

Merge tag 'mm-stable-2025-01-26-14-59' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:
 "The various patchsets are summarized below. Plus of course many
  indivudual patches which are described in their changelogs.

   - "Allocate and free frozen pages" from Matthew Wilcox reorganizes
     the page allocator so we end up with the ability to allocate and
     free zero-refcount pages. So that callers (ie, slab) can avoid a
     refcount inc & dec

   - "Support large folios for tmpfs" from Baolin Wang teaches tmpfs to
     use large folios other than PMD-sized ones

   - "Fix mm/rodata_test" from Petr Tesarik performs some maintenance
     and fixes for this small built-in kernel selftest

   - "mas_anode_descend() related cleanup" from Wei Yang tidies up part
     of the mapletree code

   - "mm: fix format issues and param types" from Keren Sun implements a
     few minor code cleanups

   - "simplify split calculation" from Wei Yang provides a few fixes and
     a test for the mapletree code

   - "mm/vma: make more mmap logic userland testable" from Lorenzo
     Stoakes continues the work of moving vma-related code into the
     (relatively) new mm/vma.c

   - "mm/page_alloc: gfp flags cleanups for alloc_contig_*()" from David
     Hildenbrand cleans up and rationalizes handling of gfp flags in the
     page allocator

   - "readahead: Reintroduce fix for improper RA window sizing" from Jan
     Kara is a second attempt at fixing a readahead window sizing issue.
     It should reduce the amount of unnecessary reading

   - "synchronously scan and reclaim empty user PTE pages" from Qi Zheng
     addresses an issue where "huge" amounts of pte pagetables are
     accumulated:

       https://lore.kernel.org/lkml/cover.1718267194.git.zhengqi.arch@bytedance.com/

     Qi's series addresses this windup by synchronously freeing PTE
     memory within the context of madvise(MADV_DONTNEED)

   - "selftest/mm: Remove warnings found by adding compiler flags" from
     Muhammad Usama Anjum fixes some build warnings in the selftests
     code when optional compiler warnings are enabled

   - "mm: don't use __GFP_HARDWALL when migrating remote pages" from
     David Hildenbrand tightens the allocator's observance of
     __GFP_HARDWALL

   - "pkeys kselftests improvements" from Kevin Brodsky implements
     various fixes and cleanups in the MM selftests code, mainly
     pertaining to the pkeys tests

   - "mm/damon: add sample modules" from SeongJae Park enhances DAMON to
     estimate application working set size

   - "memcg/hugetlb: Rework memcg hugetlb charging" from Joshua Hahn
     provides some cleanups to memcg's hugetlb charging logic

   - "mm/swap_cgroup: remove global swap cgroup lock" from Kairui Song
     removes the global swap cgroup lock. A speedup of 10% for a
     tmpfs-based kernel build was demonstrated

   - "zram: split page type read/write handling" from Sergey Senozhatsky
     has several fixes and cleaups for zram in the area of
     zram_write_page(). A watchdog softlockup warning was eliminated

   - "move pagetable_*_dtor() to __tlb_remove_table()" from Kevin
     Brodsky cleans up the pagetable destructor implementations. A rare
     use-after-free race is fixed

   - "mm/debug: introduce and use VM_WARN_ON_VMG()" from Lorenzo Stoakes
     simplifies and cleans up the debugging code in the VMA merging
     logic

   - "Account page tables at all levels" from Kevin Brodsky cleans up
     and regularizes the pagetable ctor/dtor handling. This results in
     improvements in accounting accuracy

   - "mm/damon: replace most damon_callback usages in sysfs with new
     core functions" from SeongJae Park cleans up and generalizes
     DAMON's sysfs file interface logic

   - "mm/damon: enable page level properties based monitoring" from
     SeongJae Park increases the amount of information which is
     presented in response to DAMOS actions

   - "mm/damon: remove DAMON debugfs interface" from SeongJae Park
     removes DAMON's long-deprecated debugfs interfaces. Thus the
     migration to sysfs is completed

   - "mm/hugetlb: Refactor hugetlb allocation resv accounting" from
     Peter Xu cleans up and generalizes the hugetlb reservation
     accounting

   - "mm: alloc_pages_bulk: small API refactor" from Luiz Capitulino
     removes a never-used feature of the alloc_pages_bulk() interface

   - "mm/damon: extend DAMOS filters for inclusion" from SeongJae Park
     extends DAMOS filters to support not only exclusion (rejecting),
     but also inclusion (allowing) behavior

   - "Add zpdesc memory descriptor for zswap.zpool" from Alex Shi
     introduces a new memory descriptor for zswap.zpool that currently
     overlaps with struct page for now. This is part of the effort to
     reduce the size of struct page and to enable dynamic allocation of
     memory descriptors

   - "mm, swap: rework of swap allocator locks" from Kairui Song redoes
     and simplifies the swap allocator locking. A speedup of 400% was
     demonstrated for one workload. As was a 35% reduction for kernel
     build time with swap-on-zram

   - "mm: update mips to use do_mmap(), make mmap_region() internal"
     from Lorenzo Stoakes reworks MIPS's use of mmap_region() so that
     mmap_region() can be made MM-internal

   - "mm/mglru: performance optimizations" from Yu Zhao fixes a few
     MGLRU regressions and otherwise improves MGLRU performance

   - "Docs/mm/damon: add tuning guide and misc updates" from SeongJae
     Park updates DAMON documentation

   - "Cleanup for memfd_create()" from Isaac Manjarres does that thing

   - "mm: hugetlb+THP folio and migration cleanups" from David
     Hildenbrand provides various cleanups in the areas of hugetlb
     folios, THP folios and migration

   - "Uncached buffered IO" from Jens Axboe implements the new
     RWF_DONTCACHE flag which provides synchronous dropbehind for
     pagecache reading and writing. To permite userspace to address
     issues with massive buildup of useless pagecache when
     reading/writing fast devices

   - "selftests/mm: virtual_address_range: Reduce memory" from Thomas
     Weißschuh fixes and optimizes some of the MM selftests"

* tag 'mm-stable-2025-01-26-14-59' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (321 commits)
  mm/compaction: fix UBSAN shift-out-of-bounds warning
  s390/mm: add missing ctor/dtor on page table upgrade
  kasan: sw_tags: use str_on_off() helper in kasan_init_sw_tags()
  tools: add VM_WARN_ON_VMG definition
  mm/damon/core: use str_high_low() helper in damos_wmark_wait_us()
  seqlock: add missing parameter documentation for raw_seqcount_try_begin()
  mm/page-writeback: consolidate wb_thresh bumping logic into __wb_calc_thresh
  mm/page_alloc: remove the incorrect and misleading comment
  zram: remove zcomp_stream_put() from write_incompressible_page()
  mm: separate move/undo parts from migrate_pages_batch()
  mm/kfence: use str_write_read() helper in get_access_type()
  selftests/mm/mkdirty: fix memory leak in test_uffdio_copy()
  kasan: hw_tags: Use str_on_off() helper in kasan_init_hw_tags()
  selftests/mm: virtual_address_range: avoid reading from VM_IO mappings
  selftests/mm: vm_util: split up /proc/self/smaps parsing
  selftests/mm: virtual_address_range: unmap chunks after validation
  selftests/mm: virtual_address_range: mmap() without PROT_WRITE
  selftests/memfd/memfd_test: fix possible NULL pointer dereference
  mm: add FGP_DONTCACHE folio creation flag
  mm: call filemap_fdatawrite_range_kick() after IOCB_DONTCACHE issue
  ...
 2025-01-26 18:36:23 -08:00
Linus Torvalds
c159dfbdd4 Mainly individually changelogged singleton patches. The patch series in 
this pull are:
 
 - "lib min_heap: Improve min_heap safety, testing, and documentation"
   from Kuan-Wei Chiu provides various tightenings to the min_heap library
   code.
 
 - "xarray: extract __xa_cmpxchg_raw" from Tamir Duberstein preforms some
   cleanup and Rust preparation in the xarray library code.
 
 - "Update reference to include/asm-<arch>" from Geert Uytterhoeven fixes
   pathnames in some code comments.
 
 - "Converge on using secs_to_jiffies()" from Easwar Hariharan uses the
   new secs_to_jiffies() in various places where that is appropriate.
 
 - "ocfs2, dlmfs: convert to the new mount API" from Eric Sandeen
   switches two filesystems to the new mount API.
 
 - "Convert ocfs2 to use folios" from Matthew Wilcox does that.
 
 - "Remove get_task_comm() and print task comm directly" from Yafang Shao
   removes now-unneeded calls to get_task_comm() in various places.
 
 - "squashfs: reduce memory usage and update docs" from Phillip Lougher
   implements some memory savings in squashfs and performs some
   maintainability work.
 
 - "lib: clarify comparison function requirements" from Kuan-Wei Chiu
   tightens the sort code's behaviour and adds some maintenance work.
 
 - "nilfs2: protect busy buffer heads from being force-cleared" from
   Ryusuke Konishi fixes an issues in nlifs when the fs is presented with a
   corrupted image.
 
 - "nilfs2: fix kernel-doc comments for function return values" from
   Ryusuke Konishi fixes some nilfs kerneldoc.
 
 - "nilfs2: fix issues with rename operations" from Ryusuke Konishi
   addresses some nilfs BUG_ONs which syzbot was able to trigger.
 
 - "minmax.h: Cleanups and minor optimisations" from David Laight
   does some maintenance work on the min/max library code.
 
 - "Fixes and cleanups to xarray" from Kemeng Shi does maintenance work
   on the xarray library code.
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZ5SP5QAKCRDdBJ7gKXxA
 jqN7AQChvwXGG43n4d5SDiA/rH7ddvowQcDqhC9cAMJ1ReR7qwEA8/LIWDE4PdMX
 mJnaZ1/ibpEpearrChCViApQtcyEGQI=
 =ti4E
 -----END PGP SIGNATURE-----

Merge tag 'mm-nonmm-stable-2025-01-24-23-16' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:
 "Mainly individually changelogged singleton patches. The patch series
  in this pull are:

   - "lib min_heap: Improve min_heap safety, testing, and documentation"
     from Kuan-Wei Chiu provides various tightenings to the min_heap
     library code

   - "xarray: extract __xa_cmpxchg_raw" from Tamir Duberstein preforms
     some cleanup and Rust preparation in the xarray library code

   - "Update reference to include/asm-<arch>" from Geert Uytterhoeven
     fixes pathnames in some code comments

   - "Converge on using secs_to_jiffies()" from Easwar Hariharan uses
     the new secs_to_jiffies() in various places where that is
     appropriate

   - "ocfs2, dlmfs: convert to the new mount API" from Eric Sandeen
     switches two filesystems to the new mount API

   - "Convert ocfs2 to use folios" from Matthew Wilcox does that

   - "Remove get_task_comm() and print task comm directly" from Yafang
     Shao removes now-unneeded calls to get_task_comm() in various
     places

   - "squashfs: reduce memory usage and update docs" from Phillip
     Lougher implements some memory savings in squashfs and performs
     some maintainability work

   - "lib: clarify comparison function requirements" from Kuan-Wei Chiu
     tightens the sort code's behaviour and adds some maintenance work

   - "nilfs2: protect busy buffer heads from being force-cleared" from
     Ryusuke Konishi fixes an issues in nlifs when the fs is presented
     with a corrupted image

   - "nilfs2: fix kernel-doc comments for function return values" from
     Ryusuke Konishi fixes some nilfs kerneldoc

   - "nilfs2: fix issues with rename operations" from Ryusuke Konishi
     addresses some nilfs BUG_ONs which syzbot was able to trigger

   - "minmax.h: Cleanups and minor optimisations" from David Laight does
     some maintenance work on the min/max library code

   - "Fixes and cleanups to xarray" from Kemeng Shi does maintenance
     work on the xarray library code"

* tag 'mm-nonmm-stable-2025-01-24-23-16' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (131 commits)
  ocfs2: use str_yes_no() and str_no_yes() helper functions
  include/linux/lz4.h: add some missing macros
  Xarray: use xa_mark_t in xas_squash_marks() to keep code consistent
  Xarray: remove repeat check in xas_squash_marks()
  Xarray: distinguish large entries correctly in xas_split_alloc()
  Xarray: move forward index correctly in xas_pause()
  Xarray: do not return sibling entries from xas_find_marked()
  ipc/util.c: complete the kernel-doc function descriptions
  gcov: clang: use correct function param names
  latencytop: use correct kernel-doc format for func params
  minmax.h: remove some #defines that are only expanded once
  minmax.h: simplify the variants of clamp()
  minmax.h: move all the clamp() definitions after the min/max() ones
  minmax.h: use BUILD_BUG_ON_MSG() for the lo < hi test in clamp()
  minmax.h: reduce the #define expansion of min(), max() and clamp()
  minmax.h: update some comments
  minmax.h: add whitespace around operators and after commas
  nilfs2: do not update mtime of renamed directory that is not moved
  nilfs2: handle errors that nilfs_prepare_chunk() may return
  CREDITS: fix spelling mistake
  ...
 2025-01-26 17:50:53 -08:00
Linus Torvalds
88e45067a3 SCSI misc on 20250126 
Updates to the usual drivers (ufs, lpfc, fnic, qla2xx, mpi3mr) The
 major core change is the renaming of the slave_ methods plus a bit of
 constification. The rest are minor updates and fixes.
 
 Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
 -----BEGIN PGP SIGNATURE-----
 
 iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCZ5ZQKSYcamFtZXMuYm90
 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishQMdAQCyVlDZ
 v/3EFCuC4U1l70mMu8t+F4RPvqYxM3QPCi5dDQEA751YN/kaqxeXZDqGUKCAOE3K
 Nl4XFTfLEkDVrQFFqPc=
 =9sV8
 -----END PGP SIGNATURE-----

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "Updates to the usual drivers (ufs, lpfc, fnic, qla2xx, mpi3mr).

  The major core change is the renaming of the slave_ methods plus a bit
  of constification. The rest are minor updates and fixes"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (103 commits)
  scsi: fnic: Propagate SCSI error code from fnic_scsi_drv_init()
  scsi: fnic: Test for memory allocation failure and return error code
  scsi: fnic: Return appropriate error code from failure of scsi drv init
  scsi: fnic: Return appropriate error code for mem alloc failure
  scsi: fnic: Remove always-true IS_FNIC_FCP_INITIATOR macro
  scsi: fnic: Fix use of uninitialized value in debug message
  scsi: fnic: Delete incorrect debugfs error handling
  scsi: fnic: Remove unnecessary else to fix warning in FDLS FIP
  scsi: fnic: Remove extern definition from .c files
  scsi: fnic: Remove unnecessary else and unnecessary break in FDLS
  scsi: mpi3mr: Fix possible crash when setting up bsg fails
  scsi: ufs: bsg: Set bsg_queue to NULL after removal
  scsi: ufs: bsg: Delete bsg_dev when setting up bsg fails
  scsi: st: Don't set pos_unknown just after device recognition
  scsi: aic7xxx: Fix build 'aicasm' warning
  scsi: Revert "scsi: ufs: core: Probe for EXT_IID support"
  scsi: storvsc: Ratelimit warning logs to prevent VM denial of service
  scsi: scsi_debug: Constify sdebug_driver_template
  scsi: documentation: Corrections for struct updates
  scsi: driver-api: documentation: Change what is added to docbook
  ...
 2025-01-26 16:12:44 -08:00
Linus Torvalds
41bfad507c Modules changes for 6.14-rc1 
Several fixes and small improvements are present:
 
 - Sign modules with sha512 instead of sha1 by default
 
 - Don't fail module loading when setting ro_after_init section RO failed
 
 - Constify 'struct module_attribute'
 
 - Cleanups and preparation for const struct bin_attribute
 
 - Put known GPL offenders in an array
 
 - Extend the preempt disabled section in dereference_symbol_descriptor()
 
 This has been all on linux-next for at least 2 weeks with no issues.
 
 A small merge conflict between the changes here and a pull from the
 driver-core tree might appear in kernel/module/sysfs.c, function
 add_notes_attrs(). The code has been cleaned up here and the driver-core
 additionally changes nattr->read to nattr->read_new.
 
 Related to the modules, an important new tool gendwarfksyms to calculate
 symbols CRCs from DWARF data and thereby enable the modversion support for
 Rust should come through the kbuild tree.
 -----BEGIN PGP SIGNATURE-----
 
 iQFIBAABCAAyFiEEIduBR9MnFA82q/jtumpXJwqY6poFAmeWOxwUHHBldHIucGF2
 bHVAc3VzZS5jb20ACgkQumpXJwqY6ppY0gf/aPhM6fLVArOIcyW1BvO8P4rl/nNp
 cBvN/WnNB3M1hCASAyCT56u8dDN8pxZYdMvaMKd2rCDGVIdcnXdhBEXmYLbZ4ih2
 w56nEJHbtqH2MZcBtrfZgJ4V70poNuKNl0JpTUzya+uGtl4noTfxybjcJXDvlNoO
 2Qj6SgblZ35GbEWBW0TrfjwiiHVTADaj2s0V9Pnsmpk472qc4fEMc96U3AGvsGsp
 b3KJZND2SW1bdTnTyO1SOJBcMeYCKlXb7f3/X7tGqqn7jhjfx1nrfeVG+NLYXaZo
 XxNi4vzmJCpu3wkOryvxj8WQkkHIqVkldtpM/fmu+GYVRr282LRdOdrY5Q==
 =GgGQ
 -----END PGP SIGNATURE-----

Merge tag 'modules-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux

Pull modules updates from Petr Pavlu:

 - Sign modules with sha512 instead of sha1 by default

 - Don't fail module loading when failing to set the
   ro_after_init section read-only

 - Constify 'struct module_attribute'

 - Cleanups and preparation for const struct bin_attribute

 - Put known GPL offenders in an array

 - Extend the preempt disabled section in
   dereference_symbol_descriptor()

* tag 'modules-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux:
  module: sign with sha512 instead of sha1 by default
  module: Don't fail module loading when setting ro_after_init section RO failed
  module: Split module_enable_rodata_ro()
  module: sysfs: Use const 'struct bin_attribute'
  module: sysfs: Add notes attributes through attribute_group
  module: sysfs: Simplify section attribute allocation
  module: sysfs: Drop 'struct module_sect_attr'
  module: sysfs: Drop member 'module_sect_attr::address'
  module: sysfs: Drop member 'module_sect_attrs::nsections'
  module: Constify 'struct module_attribute'
  module: Handle 'struct module_version_attribute' as const
  params: Prepare for 'const struct module_attribute *'
  module: Put known GPL offenders in an array
  module: Extend the preempt disabled section in dereference_symbol_descriptor().
 2025-01-26 14:30:43 -08:00
Linus Torvalds
40648d246f rv: tools/rtla: Updates for 6.14 
- Add a test suite to test the tool
 
   Add a small test suite that can be used to test rtla's basic features to
   at least have something to test when applying changes.
 
 - Automate manual steps in monitor creation
 
   While creating a new monitor in RV, besides generating code from dot2k,
   there are a few manual steps which can be tedious and error prone, like
   adding the tracepoints, makefile lines and kconfig, or selecting events
   that start the monitor in the initial state.
 
   Updates were made to try and automate as much as possible among those steps to
   make creating a new RV monitor much quicker. It is still requires to
   select proper tracepoints, this step is harder to automate in a general
   way and, in several cases, would still need user intervention.
 
 - Have rtla timerlat hist and top set OSNOISE_WORKLOAD flag
 
   Have both rtla-timerlat-hist and rtla-timerlat-top set OSNOISE_WORKLOAD to
   the proper value ("on" when running with -k, "off" when running with -u)
   every time the option is available instead of setting it only when running
   with -u.
 
   This prevents rtla timerlat -k from giving no results when
   NO_OSNOISE_WORKLOAD is set, either manually or by an abnormally exited earlier
   run of rtla timerlat -u.
 
 -  Stop rtla timerlat on signal properly when overloaded
 
   There is an issue where if rtla is run on machines with a high number of
   CPUs (100+), timerlat can generate more samples than rtla is able to process
   via tracefs_iterate_raw_events. This is especially common when the interval
   is set to 100us (rteval and cyclictest default) as opposed to the rtla
   default of 1000us, but also happens with the rtla default.
 
   Currently, this leads to rtla hanging and having to be terminated with
   SIGTERM. SIGINT setting stop_tracing is not enough, since more and more
   events are coming and tracefs_iterate_raw_events never exits.
 
   To fix this: Stop the timerlat tracer on SIGINT/SIGALRM to ensure no more
   events are generated when rtla is supposed to exit.
 
   Also on receiving SIGINT/SIGALRM twice, abort iteration immediately with
   tracefs_iterate_stop, making rtla exit right away instead of waiting for all
   events to be processed.
 
 - Account for missed events
 
   Due to tracefs buffer overflow, it can happen that rtla misses events,
   making the tracing results inaccurate.
 
   Count both the number of missed events and the total number of processed
   events, and display missed events as well as their percentage. The numbers
   are displayed for both osnoise and timerlat, even though for the earlier,
   missed events are generally not expected.
 
   For hist, the number is displayed at the end of the run; for top, it is
   displayed on each printing of the top table.
 
 - Changes to make osnoise more robust
 
   There was a dependency in the code that the first field of the
   osnoise_tool structure was the trace field. If that that ever changed,
   then the code work break. Change the code to encapsulate this dependency
   where the code that uses the structure does not have this dependency.
 -----BEGIN PGP SIGNATURE-----
 
 iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCZ5UQ4BQccm9zdGVkdEBn
 b29kbWlzLm9yZwAKCRAp5XQQmuv6qktFAQD2px6MyoOVTssB5Iw3aTWGUfTFoDEc
 bfng5JsBxlVJkQEA+2UUvP8FJlLTOQvVEwJiscX7CCJxl5bYkV6GWuGRxQU=
 =h//9
 -----END PGP SIGNATURE-----

Merge tag 'trace-tools-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull rv and tools/rtla updates from Steven Rostedt:

 - Add a test suite to test the tool

   Add a small test suite that can be used to test rtla's basic features
   to at least have something to test when applying changes.

 - Automate manual steps in monitor creation

   While creating a new monitor in RV, besides generating code from
   dot2k, there are a few manual steps which can be tedious and error
   prone, like adding the tracepoints, makefile lines and kconfig, or
   selecting events that start the monitor in the initial state.

   Updates were made to try and automate as much as possible among those
   steps to make creating a new RV monitor much quicker. It is still
   requires to select proper tracepoints, this step is harder to
   automate in a general way and, in several cases, would still need
   user intervention.

 - Have rtla timerlat hist and top set OSNOISE_WORKLOAD flag

   Have both rtla-timerlat-hist and rtla-timerlat-top set
   OSNOISE_WORKLOAD to the proper value ("on" when running with -k,
   "off" when running with -u) every time the option is available
   instead of setting it only when running with -u.

   This prevents rtla timerlat -k from giving no results when
   NO_OSNOISE_WORKLOAD is set, either manually or by an abnormally
   exited earlier run of rtla timerlat -u.

 - Stop rtla timerlat on signal properly when overloaded

   There is an issue where if rtla is run on machines with a high number
   of CPUs (100+), timerlat can generate more samples than rtla is able
   to process via tracefs_iterate_raw_events. This is especially common
   when the interval is set to 100us (rteval and cyclictest default) as
   opposed to the rtla default of 1000us, but also happens with the rtla
   default.

   Currently, this leads to rtla hanging and having to be terminated
   with SIGTERM. SIGINT setting stop_tracing is not enough, since more
   and more events are coming and tracefs_iterate_raw_events never
   exits.

   To fix this: Stop the timerlat tracer on SIGINT/SIGALRM to ensure no
   more events are generated when rtla is supposed to exit.

   Also on receiving SIGINT/SIGALRM twice, abort iteration immediately
   with tracefs_iterate_stop, making rtla exit right away instead of
   waiting for all events to be processed.

 - Account for missed events

   Due to tracefs buffer overflow, it can happen that rtla misses
   events, making the tracing results inaccurate.

   Count both the number of missed events and the total number of
   processed events, and display missed events as well as their
   percentage. The numbers are displayed for both osnoise and timerlat,
   even though for the earlier, missed events are generally not
   expected.

   For hist, the number is displayed at the end of the run; for top, it
   is displayed on each printing of the top table.

 - Changes to make osnoise more robust

   There was a dependency in the code that the first field of the
   osnoise_tool structure was the trace field. If that that ever
   changed, then the code work break. Change the code to encapsulate
   this dependency where the code that uses the structure does not have
   this dependency.

* tag 'trace-tools-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (22 commits)
  rtla: Report missed event count
  rtla: Add function to report missed events
  rtla: Count all processed events
  rtla: Count missed trace events
  tools/rtla: Add osnoise_trace_is_off()
  rtla/timerlat_top: Set OSNOISE_WORKLOAD for kernel threads
  rtla/timerlat_hist: Set OSNOISE_WORKLOAD for kernel threads
  rtla/osnoise: Distinguish missing workload option
  rtla/timerlat_top: Abort event processing on second signal
  rtla/timerlat_hist: Abort event processing on second signal
  rtla/timerlat_top: Stop timerlat tracer on signal
  rtla/timerlat_hist: Stop timerlat tracer on signal
  rtla: Add trace_instance_stop
  tools/rtla: Add basic test suite
  verification/dot2k: Implement event type detection
  verification/dot2k: Auto patch current kernel source
  verification/dot2k: Simplify manual steps in monitor creation
  rv: Simplify manual steps in monitor creation
  verification/dot2k: Add support for name and description options
  verification/dot2k: More robust template variables
  ...
 2025-01-26 14:25:58 -08:00
Linus Torvalds
90ab2117f4 Runtime verifier and osnoise fixes for 6.14: 
- Reset idle tasks on reset for runtime verifier
 
   When the runtime verifier is reset, it resets the task's data that is being
   monitored. But it only iterates for_each_process() which does not include
   the idle tasks. As the idle tasks can be monitored, they need to be reset
   as well.
 
 - Fix the enabling and disabling of tracepoints in osnoise
 
   If timerlat is enabled and the WORKLOAD flag is not set, then the osnoise
   tracer will enable the migrate task tracepoint to monitor it for its own
   workload. The test to enable the tracepoint is done against user space
   modifiable parameters. On disabling of the tracer, those same parameters
   are used to determine if the tracepoint should be disabled. The problem is
   if user space were to modify the parameters after it enables the tracer
   then it may not disable the tracepoint.
 
   Instead, a static variable is used to keep track if the tracepoint was
   enabled or not. Then when the tracer shuts down, it will use this variable
   to decide to disable the tracepoint or not, instead of looking at the user
   space parameters.
 -----BEGIN PGP SIGNATURE-----
 
 iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCZ5UJ1BQccm9zdGVkdEBn
 b29kbWlzLm9yZwAKCRAp5XQQmuv6qo46AQDjr1yVTyUmzvxe1bMLDoDOq1xeRMRe
 4f8CdpOJRxbi0QEAwnl5Ey9Rvcuy8GFpt/USESr4VYWAN10fvsPx7pkphAs=
 =RYyn
 -----END PGP SIGNATURE-----

Merge tag 'trace-rv-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull runtime verifier and osnoise fixes from Steven Rostedt:

 - Reset idle tasks on reset for runtime verifier

   When the runtime verifier is reset, it resets the task's data that is
   being monitored. But it only iterates for_each_process() which does
   not include the idle tasks. As the idle tasks can be monitored, they
   need to be reset as well.

 - Fix the enabling and disabling of tracepoints in osnoise

   If timerlat is enabled and the WORKLOAD flag is not set, then the
   osnoise tracer will enable the migrate task tracepoint to monitor it
   for its own workload. The test to enable the tracepoint is done
   against user space modifiable parameters. On disabling of the tracer,
   those same parameters are used to determine if the tracepoint should
   be disabled. The problem is if user space were to modify the
   parameters after it enables the tracer then it may not disable the
   tracepoint.

   Instead, a static variable is used to keep track if the tracepoint
   was enabled or not. Then when the tracer shuts down, it will use this
   variable to decide to disable the tracepoint or not, instead of
   looking at the user space parameters.

* tag 'trace-rv-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing/osnoise: Fix resetting of tracepoints
  rv: Reset per-task monitors also for idle tasks
 2025-01-26 14:19:45 -08:00
Linus Torvalds
5fb4088624 bitmap patches for v6.14. 
Hi Linus,
 
 Please pull bitmap patches for v6.14.
 
 This includes const_true() series from Vincent Mailhol, another
 __always_inline rework from Nathan Chancellor for RISCV, and a
 couple random fixes from Dr. David Alan Gilbert and I Hsin Cheng.
 
 Thanks,
 Yury
 -----BEGIN PGP SIGNATURE-----
 
 iQGzBAABCgAdFiEEi8GdvG6xMhdgpu/4sUSA/TofvsgFAmeUMpEACgkQsUSA/Tof
 vsiqEAv/VvtTD6I3Ms3kIl2G1pBP/EFcYQGbwS1PCsX3RX16rinZ2XUDRtjvRy1Y
 FA+OsZ2yPtH8G1WRM8YauZsh2cZSCA4xTFadLSZkT8leSWERKaTyJI+PXe2A43IU
 d+FV4zYH5JYqV2u9aLHWMO8Voq9nNHZXOYHRu0q53TBFn7V294Lma9oDlK3Wjfur
 vSZZU9SKKlMV8Oy6/hZ3tDemUDM1jAGlqrxFb8aXRsTsCpsmlqE1bQdZ+AadjevZ
 cVeplB8OCCnqcYV28szIwsJpSzmd5/WBP6jLpeMgBYFGS0JT2USdZ8gsw+Yq/On5
 hjxek3cHBKdv0CINk0Ejf4aV0IvoX5S/VRlTjhttzyX68no1DoibDuWJWB42PRWS
 frllVOmdkm2DqA0G9mgxtwzBl5UqMFVe5LuVU9E9BZZeDmRZmS3obrUiMzpiqUOs
 zkdDvA0uaKgjx2qZADDEFqg1+XdX0A0iPebEv9vLaULXv0+D/PbkClNqIf8p7778
 2GWuBLJe
 =1hW6
 -----END PGP SIGNATURE-----

Merge tag 'bitmap-for-6.14' of https://github.com:/norov/linux

Pull bitmap updates from Yury Norov:
 "This includes const_true() series from Vincent Mailhol, another
  __always_inline rework from Nathan Chancellor for RISCV, and a couple
  of random fixes from Dr. David Alan Gilbert and I Hsin Cheng"

* tag 'bitmap-for-6.14' of https://github.com:/norov/linux:
  cpumask: Rephrase comments for cpumask_any*() APIs
  cpu: Remove unused init_cpu_online
  riscv: Always inline bitops
  linux/bits.h: simplify GENMASK_INPUT_CHECK()
  compiler.h: add const_true()
 2025-01-26 14:03:44 -08:00
Huacai Chen
26c0a2d93a LoongArch: Fix warnings during S3 suspend 
The enable_gpe_wakeup() function calls acpi_enable_all_wakeup_gpes(),
and the later one may call the preempt_schedule_common() function,
resulting in a thread switch and causing the CPU to be in an interrupt
enabled state after the enable_gpe_wakeup() function returns, leading
to the warnings as follow.

[ C0] WARNING: ... at kernel/time/timekeeping.c:845 ktime_get+0xbc/0xc8
[ C0]          ...
[ C0] Call Trace:
[ C0] [<90000000002243b4>] show_stack+0x64/0x188
[ C0] [<900000000164673c>] dump_stack_lvl+0x60/0x88
[ C0] [<90000000002687e4>] __warn+0x8c/0x148
[ C0] [<90000000015e9978>] report_bug+0x1c0/0x2b0
[ C0] [<90000000016478e4>] do_bp+0x204/0x3b8
[ C0] [<90000000025b1924>] exception_handlers+0x1924/0x10000
[ C0] [<9000000000343bbc>] ktime_get+0xbc/0xc8
[ C0] [<9000000000354c08>] tick_sched_timer+0x30/0xb0
[ C0] [<90000000003408e0>] __hrtimer_run_queues+0x160/0x378
[ C0] [<9000000000341f14>] hrtimer_interrupt+0x144/0x388
[ C0] [<9000000000228348>] constant_timer_interrupt+0x38/0x48
[ C0] [<90000000002feba4>] __handle_irq_event_percpu+0x64/0x1e8
[ C0] [<90000000002fed48>] handle_irq_event_percpu+0x20/0x80
[ C0] [<9000000000306b9c>] handle_percpu_irq+0x5c/0x98
[ C0] [<90000000002fd4a0>] generic_handle_domain_irq+0x30/0x48
[ C0] [<9000000000d0c7b0>] handle_cpu_irq+0x70/0xa8
[ C0] [<9000000001646b30>] handle_loongarch_irq+0x30/0x48
[ C0] [<9000000001646bc8>] do_vint+0x80/0xe0
[ C0] [<90000000002aea1c>] finish_task_switch.isra.0+0x8c/0x2a8
[ C0] [<900000000164e34c>] __schedule+0x314/0xa48
[ C0] [<900000000164ead8>] schedule+0x58/0xf0
[ C0] [<9000000000294a2c>] worker_thread+0x224/0x498
[ C0] [<900000000029d2f0>] kthread+0xf8/0x108
[ C0] [<9000000000221f28>] ret_from_kernel_thread+0xc/0xa4
[ C0]
[ C0] ---[ end trace 0000000000000000 ]---

The root cause is acpi_enable_all_wakeup_gpes() uses a mutex to protect
acpi_hw_enable_all_wakeup_gpes(), and acpi_ut_acquire_mutex() may cause
a thread switch. Since there is no longer concurrent execution during
loongarch_acpi_suspend(), we can call acpi_hw_enable_all_wakeup_gpes()
directly in enable_gpe_wakeup().

The solution is similar to commit 22db06337f ("ACPI: sleep: Avoid
breaking S3 wakeup due to might_sleep()").

Fixes: 366bb35a8e ("LoongArch: Add suspend (ACPI S3) support")
Signed-off-by: Qunqin Zhao <zhaoqunqin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
 2025-01-26 21:49:59 +08:00
Thomas Weißschuh
f3227ffda0 module: Constify 'struct module_attribute' 
These structs are never modified, move them to read-only memory.
This makes the API clearer and also prepares for the constification of
'struct attribute' itself.

While at it, also constify 'modinfo_attrs_count'.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Petr Pavlu <petr.pavlu@suse.com>
Link: https://lore.kernel.org/r/20241216-sysfs-const-attr-module-v1-3-3790b53e0abf@weissschuh.net
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
 2025-01-26 13:05:23 +01:00
Thomas Weißschuh
38e3fe6595 module: Handle 'struct module_version_attribute' as const 
The structure is always read-only due to its placement in the read-only
section __modver. Reflect this at its usage sites.
Also prepare for the const handling of 'struct module_attribute' itself.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Petr Pavlu <petr.pavlu@suse.com>
Link: https://lore.kernel.org/r/20241216-sysfs-const-attr-module-v1-2-3790b53e0abf@weissschuh.net
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
 2025-01-26 13:05:23 +01:00
Sebastian Andrzej Siewior
a145c848d6 module: Extend the preempt disabled section in dereference_symbol_descriptor(). 
dereference_symbol_descriptor() needs to obtain the module pointer
belonging to pointer in order to resolve that pointer.
The returned mod pointer is obtained under RCU-sched/ preempt_disable()
guarantees and needs to be used within this section to ensure that the
module is not removed in the meantime.

Extend the preempt_disable() section to also cover
dereference_module_function_descriptor().

Fixes: 04b8eb7a4c ("symbol lookup: introduce dereference_symbol_descriptor()")
Cc: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Helge Deller <deller@gmx.de>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Naveen N Rao <naveen@kernel.org>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://lore.kernel.org/r/20250108090457.512198-2-bigeasy@linutronix.de
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
 2025-01-26 13:04:37 +01:00
Suren Baghdasaryan
3c7fd94205 seqlock: add missing parameter documentation for raw_seqcount_try_begin() 
Add missing documentation for raw_seqcount_try_begin() start parameter.

Link: https://lkml.kernel.org/r/20250116182730.801497-1-surenb@google.com
Fixes: dba4761a3e ("seqlock: add raw_seqcount_try_begin")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/all/20250116170522.23e884d5@canb.auug.org.au/
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Acked-by: Waiman Long <longman@redhat.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2025-01-25 20:22:45 -08:00
Jens Axboe
d94d23fdd7 mm: add FGP_DONTCACHE folio creation flag 
Callers can pass this in for uncached folio creation, in which case if a
folio is newly created it gets marked as uncached.  If a folio exists for
this index and lookup succeeds, then it will not get marked as uncached. 
If an !uncached lookup finds a cached folio, clear the flag.  For that
case, there are competeting uncached and cached users of the folio, and it
should not get pruned.

Link: https://lkml.kernel.org/r/20241220154831.1086649-13-axboe@kernel.dk
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Cc: Brian Foster <bfoster@redhat.com>
Cc: Chris Mason <clm@meta.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2025-01-25 20:22:44 -08:00
Jens Axboe
1d44575765 mm: call filemap_fdatawrite_range_kick() after IOCB_DONTCACHE issue 
When a buffered write submitted with IOCB_DONTCACHE has been successfully
submitted, call filemap_fdatawrite_range_kick() to kick off the IO.  File
systems call generic_write_sync() for any successful buffered write
submission, hence add the logic here rather than needing to modify the
file system.

Link: https://lkml.kernel.org/r/20241220154831.1086649-12-axboe@kernel.dk
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Cc: Brian Foster <bfoster@redhat.com>
Cc: Chris Mason <clm@meta.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2025-01-25 20:22:44 -08:00
Jens Axboe
dddc559f2e mm/filemap: add filemap_fdatawrite_range_kick() helper 
Works like filemap_fdatawrite_range(), except it's a non-integrity data
writeback and hence only starts writeback on the specified range.  Will
help facilitate generically starting uncached writeback from
generic_write_sync(), as header dependencies preclude doing this inline
from fs.h.

Link: https://lkml.kernel.org/r/20241220154831.1086649-11-axboe@kernel.dk
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Cc: Brian Foster <bfoster@redhat.com>
Cc: Chris Mason <clm@meta.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 2025-01-25 20:22:43 -08:00