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1,403,344 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Mohamed Khalfella
|
59e25ef2b4 |
block: Use RCU in blk_mq_[un]quiesce_tagset() instead of set->tag_list_lock
blk_mq_{add,del}_queue_tag_set() functions add and remove queues from
tagset, the functions make sure that tagset and queues are marked as
shared when two or more queues are attached to the same tagset.
Initially a tagset starts as unshared and when the number of added
queues reaches two, blk_mq_add_queue_tag_set() marks it as shared along
with all the queues attached to it. When the number of attached queues
drops to 1 blk_mq_del_queue_tag_set() need to mark both the tagset and
the remaining queues as unshared.
Both functions need to freeze current queues in tagset before setting on
unsetting BLK_MQ_F_TAG_QUEUE_SHARED flag. While doing so, both functions
hold set->tag_list_lock mutex, which makes sense as we do not want
queues to be added or deleted in the process. This used to work fine
until commit
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||
Caleb Sander Mateos
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db339b4067 |
ublk: don't mutate struct bio_vec in iteration
__bio_for_each_segment() uses the returned struct bio_vec's bv_len field
to advance the struct bvec_iter at the end of each loop iteration. So
it's incorrect to modify it during the loop. Don't assign to bv_len (or
bv_offset, for that matter) in ublk_copy_user_pages().
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Fixes:
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Shida Zhang
|
cfdeb588ae |
block: prohibit calls to bio_chain_endio
Now that all potential callers of bio_chain_endio have been eliminated, completely prohibit any future calls to this function. Suggested-by: Ming Lei <ming.lei@redhat.com> Suggested-by: Andreas Gruenbacher <agruenba@redhat.com> Suggested-by: Christoph Hellwig <hch@infradead.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Shida Zhang <zhangshida@kylinos.cn> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Shida Zhang
|
53280e3984 |
bcache: fix improper use of bi_end_io
Don't call bio->bi_end_io() directly. Use the bio_endio() helper function instead, which handles completion more safely and uniformly. Suggested-by: Christoph Hellwig <hch@infradead.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Shida Zhang <zhangshida@kylinos.cn> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Caleb Sander Mateos
|
87213b0d84 |
ublk: allow non-blocking ctrl cmds in IO_URING_F_NONBLOCK issue
Handling most of the ublksrv_ctrl_cmd opcodes require locking a mutex, so ublk_ctrl_uring_cmd() bails out with EAGAIN when called with the IO_URING_F_NONBLOCK issue flag. However, several opcodes can be handled without blocking: - UBLK_CMD_GET_QUEUE_AFFINITY - UBLK_CMD_GET_DEV_INFO - UBLK_CMD_GET_DEV_INFO2 - UBLK_U_CMD_GET_FEATURES Handle these opcodes synchronously instead of returning EAGAIN so io_uring doesn't need to issue the command via the worker thread pool. Signed-off-by: Caleb Sander Mateos <csander@purestorage.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Jens Axboe
|
0f45353dd4 |
nvme updates for Linux 6.19
- Subsystem usage cleanups (Max) - Endpoint device fixes (Shin'ichiro) - Debug statements (Gerd) - FC fabrics cleanups and fixes (Daniel) - Consistent alloc API usages (Israel) - Code comment updates (Chu) - Authentication retry fix (Justin) -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE3Fbyvv+648XNRdHTPe3zGtjzRgkFAmkyEDQACgkQPe3zGtjz RgnY0w//VDEwG8L9jVHgK6oGaABVhT0QhEGs6RcwsRvXeQT81TRU3aazS3VWQ281 +HZxM+8Jnhlg7FYZTV6+pTjgSzr7hvrEtDSm+1wCC6t2FtmVeluka/NedX15JA+/ JUo5Tged3qckQZPDjFbxCuSwjGJdWyCkyaBQqEFTYyP59M5yf+KGKOzO5nleSBp2 txWKYXscuoee0SH/0bSm6YuzlNcX2vW++O+6y3v73gxF4vGxUSvTnJdUJW6NYtgy Fj7a5FTIwvBw3Pdr3CBmtD6OWdYDbAlvRSowdUzE8ItQiI7vbkbVkSJhTOLFHzCV ZX2xnRV97jOLijXFroUA/+o0naW/0W7xls+aIfAEyXfBTP9kFdQL/iB6bWwLudEK ZELZyBcn6b0bDPuxUWnZfhu/NqjDQ2/PV+lz9ULo903gz66AljXm3LQtldrePBku XFPPbbeahCogizyAxFOwZGTPQbcMhqEgq9Afet8yq9V9ZtVMTAf6C1/TySE2dldT Xg9SpJttb2Tx8XqMYvSUptSDHqeA8NKhwjlDj+h0zxXRfRGcmyk6HG3yCUX1wOOc gR3vzgCfRi3YHvfrxTiPea/ev/0YpFkX4NA3U+4hXFc8ue/xwpQwevyN6+fgpHH1 WRjTS5t6icJnkwIKQTXz6acwKsQsWwFoMdXQUzzZopaR2BvLCVI= =aPBc -----END PGP SIGNATURE----- Merge tag 'nvme-6.19-2025-12-04' of git://git.infradead.org/nvme into block-6.19 Pull NVMe updates from Keith: "- Subsystem usage cleanups (Max) - Endpoint device fixes (Shin'ichiro) - Debug statements (Gerd) - FC fabrics cleanups and fixes (Daniel) - Consistent alloc API usages (Israel) - Code comment updates (Chu) - Authentication retry fix (Justin)" * tag 'nvme-6.19-2025-12-04' of git://git.infradead.org/nvme: nvme-fabrics: add ENOKEY to no retry criteria for authentication failures nvme-auth: use kvfree() for memory allocated with kvcalloc() nvmet-tcp: use kvcalloc for commands array nvmet-rdma: use kvcalloc for commands and responses arrays nvme: fix typo error in nvme target nvmet-fc: use pr_* print macros instead of dev_* nvmet-fcloop: remove unused lsdir member. nvmet-fcloop: check all request and response have been processed nvme-fc: check all request and response have been processed nvme-fc: don't hold rport lock when putting ctrl nvme-pci: add debug message on fail to read CSTS nvme-pci: print error message on failure in nvme_probe nvmet: pci-epf: fix DMA channel debug print nvmet: pci-epf: move DMA initialization to EPC init callback nvmet: remove redundant subsysnqn field from ctrl nvmet: add sanity checks when freeing subsystem |
||
Justin Tee
|
13989207ee |
nvme-fabrics: add ENOKEY to no retry criteria for authentication failures
With authentication, in addition to EKEYREJECTED there is also no point in retrying reconnects when status is ENOKEY. Thus, add -ENOKEY as another criteria to determine when to stop retries. Cc: Daniel Wagner <wagi@kernel.org> Cc: Hannes Reinecke <hare@suse.de> Closes: https://lore.kernel.org/linux-nvme/20250829-nvme-fc-sync-v3-0-d69c87e63aee@kernel.org/ Signed-off-by: Justin Tee <justintee8345@gmail.com> Tested-by: Daniel Wagner <wagi@kernel.org> Reviewed-by: Daniel Wagner <wagi@kernel.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Keith Busch <kbusch@kernel.org> |
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Israel Rukshin
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bb9f4cca7c |
nvme-auth: use kvfree() for memory allocated with kvcalloc()
Memory allocated by kvcalloc() may come from vmalloc or kmalloc,
so use kvfree() instead of kfree() for proper deallocation.
Fixes:
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Israel Rukshin
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5c8d134f01 |
nvmet-tcp: use kvcalloc for commands array
Replace kcalloc with kvcalloc for allocation of the commands array. Each command structure is 712 bytes. The array typically exceeds a single page, and grows much larger with high queue depths (e.g., commands >182KB). kvcalloc automatically falls back to vmalloc for large or fragmented allocations, improving reliability. In our case, this memory is not aimed for DMA operations and could be safely allocated by kvcalloc. Using virtually contiguous memory helps to avoid allocation failures and out-of-memory conditions common with kcalloc on large pools. Signed-off-by: Israel Rukshin <israelr@nvidia.com> Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@kernel.org> |
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Israel Rukshin
|
ce234d838d |
nvmet-rdma: use kvcalloc for commands and responses arrays
Replace kcalloc with kvcalloc for allocation of the commands and responses arrays. Each command structure is 272 bytes and each response structure is 672 bytes. These arrays typically exceed a single page, and grow much larger with high queue depths (e.g., commands >2MB, responses >170KB) kvcalloc automatically falls back to vmalloc for large or fragmented allocations, improving reliability. In our case, this memory is not aimed for DMA operations and could be safely allocated by kvcalloc. Using virtually contiguous memory helps to avoid allocation failures and out-of-memory conditions common with kcalloc on large pools. Signed-off-by: Israel Rukshin <israelr@nvidia.com> Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@kernel.org> |
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Chu Guangqing
|
b645d5a25d |
nvme: fix typo error in nvme target
Fix two spelling mistakes. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Chu Guangqing <chuguangqing@inspur.com> Signed-off-by: Keith Busch <kbusch@kernel.org> |
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Daniel Wagner
|
57413f0899 |
nvmet-fc: use pr_* print macros instead of dev_*
Many of the nvmet-fc log messages cannot print the device used, because
it's not there yet:
(NULL device *): {0:0} Association deleted
Use the pr_* macros consistently throughout the module and match the
output of the nvme-fc module.
Using port:association ids are more useful when debugging what's going
on, because these match now with the log entries from nvme-fc.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Daniel Wagner <wagi@kernel.org>
Signed-off-by: Keith Busch <kbusch@kernel.org>
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Daniel Wagner
|
86ef6f7fc7 |
nvmet-fcloop: remove unused lsdir member.
Nothing is using lsdir member in struct fcloop_lsreq. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Daniel Wagner <wagi@kernel.org> Signed-off-by: Keith Busch <kbusch@kernel.org> |
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Daniel Wagner
|
f9929c518d |
nvmet-fcloop: check all request and response have been processed
When the remoteport or the targetport are removed check that there are no inflight requests or responses. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Daniel Wagner <wagi@kernel.org> Signed-off-by: Keith Busch <kbusch@kernel.org> |
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Daniel Wagner
|
67582dfd87 |
nvme-fc: check all request and response have been processed
When the rport is removed there shouldn't be any in flight request or responses. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Daniel Wagner <wagi@kernel.org> Signed-off-by: Keith Busch <kbusch@kernel.org> |
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Shaurya Rane
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f7e3f852a4 |
block: fix memory leak in __blkdev_issue_zero_pages
Move the fatal signal check before bio_alloc() to prevent a memory
leak when BLKDEV_ZERO_KILLABLE is set and a fatal signal is pending.
Previously, the bio was allocated before checking for a fatal signal.
If a signal was pending, the code would break out of the loop without
freeing or chaining the just-allocated bio, causing a memory leak.
This matches the pattern already used in __blkdev_issue_write_zeroes()
where the signal check precedes the allocation.
Fixes:
|
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shechenglong
|
8a32282175 |
block: fix comment for op_is_zone_mgmt() to include RESET_ALL
REQ_OP_ZONE_RESET_ALL is a zone management request, and op_is_zone_mgmt()
has returned true for it.
Update the comment to remove the misleading exception note so
the documentation matches the implementation.
Fixes:
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Damien Le Moal
|
552c1149af |
block: Clear BLK_ZONE_WPLUG_PLUGGED when aborting plugged BIOs
Commit |
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Cong Zhang
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c196bf43d7 |
blk-mq: Abort suspend when wakeup events are pending
During system suspend, wakeup capable IRQs for block device can be
delayed, which can cause blk_mq_hctx_notify_offline() to hang
indefinitely while waiting for pending request to complete.
Skip the request waiting loop and abort suspend when wakeup events are
pending to prevent the deadlock.
Fixes:
|
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Chaitanya Kulkarni
|
71075d25ca |
blk-mq: add blk_rq_nr_bvec() helper
Add a new helper function blk_rq_nr_bvec() that returns the number of bvecs in a request. This count represents the number of iterations rq_for_each_bvec() would perform on a request. Drivers need to pre-allocate bvec arrays before iterating through a request's bvecs. Currently, they manually count bvecs using rq_for_each_bvec() in a loop, which is repetitive. The new helper centralizes this logic. This pattern exists in loop and zloop drivers, where multi-bio requests require copying bvecs into a contiguous array before creating an iov_iter for file operations. Update loop and zloop drivers to use the new helper, eliminating duplicate code. This patch also provides a clear API to avoid any potential misuse of blk_nr_phys_segments() for calculating the bvecs since, one bvec can have more than one segments and use of blk_nr_phys_segments() can lead to extra memory allocation :- [ 6155.673749] nullb_bio: 128K bio as ONE bvec: sector=0, size=131072 [ 6155.673846] null_blk: #### null_handle_data_transfer:1375 [ 6155.673850] null_blk: nr_bvec=1 blk_rq_nr_phys_segments=2 [ 6155.674263] null_blk: #### null_handle_data_transfer:1375 [ 6155.674267] null_blk: nr_bvec=1 blk_rq_nr_phys_segments=1 Reviewed-by: Niklas Cassel <cassel@kernel.org> Signed-off-by: Chaitanya Kulkarni <ckulkarnilinux@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Stefan Hajnoczi
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3e2cb9ee76 |
block: add IOC_PR_READ_RESERVATION ioctl
Add a Persistent Reservations ioctl to read the current reservation.
This calls the pr_ops->read_reservation() function that was previously
added in commit
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Stefan Hajnoczi
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22a1ffea5f |
block: add IOC_PR_READ_KEYS ioctl
Add a Persistent Reservations ioctl to read the list of currently
registered reservation keys. This calls the pr_ops->read_keys() function
that was previously added in commit
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Stefan Hajnoczi
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38ec8469f3 |
nvme: reject invalid pr_read_keys() num_keys values
The pr_read_keys() interface has a u32 num_keys parameter. The NVMe Reservation Report command has a u32 maximum length. Reject num_keys values that are too large to fit. This will become important when pr_read_keys() is exposed to untrusted userspace via an <linux/pr.h> ioctl. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Stefan Hajnoczi
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ab4fb1d8f6 |
scsi: sd: reject invalid pr_read_keys() num_keys values
The pr_read_keys() interface has a u32 num_keys parameter. The SCSI PERSISTENT RESERVE IN command has a maximum READ KEYS service action size of 65536 bytes. Reject num_keys values that are too large to fit into the SCSI command. This will become important when pr_read_keys() is exposed to untrusted userspace via an <linux/pr.h> ioctl. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Fengnan Chang
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48f22f8093 |
block: enable per-cpu bio cache by default
Since after commit
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Fengnan Chang
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05ce4c584c |
block: use bio_alloc_bioset for passthru IO by default
Use bio_alloc_bioset for passthru IO by default, so that we can enable bio cache for irq and polled passthru IO in later. Signed-off-by: Fengnan Chang <changfengnan@bytedance.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Linus Torvalds
|
559e608c46 |
Changes for 6.19-rc1
Added:
support timestamps prior to epoch;
do not overwrite uptodate pages;
disable readahead for compressed files;
setting of dummy blocksize to read boot_block when mounting;
the run_lock initialization when loading $Extend;
initialization of allocated memory before use;
support for the NTFS3_IOC_SHUTDOWN ioctl;
check for minimum alignment when performing direct I/O reads;
check for shutdown in fsync.
Fixed:
mount failure for sparse runs in run_unpack();
use-after-free of sbi->options in cmp_fnames;
KMSAN uninit bug after failed mi_read in mi_format_new;
uninit error after buffer allocation by __getname();
KMSAN uninit-value in ni_create_attr_list;
double free of sbi->options->nls and ownership of fc->fs_private;
incorrect vcn adjustments in attr_collapse_range();
mode update when ACL can be reduced to mode;
memory leaks in add sub record.
Changed:
refactor code, updated terminology, spelling;
do not kmap pages in (de)compression code;
after ntfs_look_free_mft(), code that fails must put mi;
default mount options for "acl" and "prealloc".
Replaced:
use unsafe_memcpy() to avoid memcpy size warning;
ntfs_bio_pages with page cache for compressed files.
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Merge tag 'ntfs3_for_6.19' of https://github.com/Paragon-Software-Group/linux-ntfs3
Pull ntfs3 updates from Konstantin Komarov:
"New code:
- support timestamps prior to epoch
- do not overwrite uptodate pages
- disable readahead for compressed files
- setting of dummy blocksize to read boot_block when mounting
- the run_lock initialization when loading $Extend
- initialization of allocated memory before use
- support for the NTFS3_IOC_SHUTDOWN ioctl
- check for minimum alignment when performing direct I/O reads
- check for shutdown in fsync
Fixes:
- mount failure for sparse runs in run_unpack()
- use-after-free of sbi->options in cmp_fnames
- KMSAN uninit bug after failed mi_read in mi_format_new
- uninit error after buffer allocation by __getname()
- KMSAN uninit-value in ni_create_attr_list
- double free of sbi->options->nls and ownership of fc->fs_private
- incorrect vcn adjustments in attr_collapse_range()
- mode update when ACL can be reduced to mode
- memory leaks in add sub record
Changes:
- refactor code, updated terminology, spelling
- do not kmap pages in (de)compression code
- after ntfs_look_free_mft(), code that fails must put mft_inode
- default mount options for "acl" and "prealloc"
Replaced:
- use unsafe_memcpy() to avoid memcpy size warning
- ntfs_bio_pages with page cache for compressed files"
* tag 'ntfs3_for_6.19' of https://github.com/Paragon-Software-Group/linux-ntfs3: (26 commits)
fs/ntfs3: check for shutdown in fsync
fs/ntfs3: change the default mount options for "acl" and "prealloc"
fs/ntfs3: Prevent memory leaks in add sub record
fs/ntfs3: out1 also needs to put mi
fs/ntfs3: Fix spelling mistake "recommened" -> "recommended"
fs/ntfs3: update mode in xattr when ACL can be reduced to mode
fs/ntfs3: check minimum alignment for direct I/O
fs/ntfs3: implement NTFS3_IOC_SHUTDOWN ioctl
fs/ntfs3: correct attr_collapse_range when file is too fragmented
ntfs3: fix double free of sbi->options->nls and clarify ownership of fc->fs_private
fs/ntfs3: Initialize allocated memory before use
fs/ntfs3: remove ntfs_bio_pages and use page cache for compressed I/O
ntfs3: avoid memcpy size warning
fs/ntfs3: fix KMSAN uninit-value in ni_create_attr_list
ntfs3: init run lock for extend inode
ntfs: set dummy blocksize to read boot_block when mounting
fs/ntfs3: disable readahead for compressed files
ntfs3: Fix uninit buffer allocated by __getname()
ntfs3: fix uninit memory after failed mi_read in mi_format_new
ntfs3: fix use-after-free of sbi->options in cmp_fnames
...
|
||
|
Linus Torvalds
|
fbeea4db51 |
New features and improvements for the ext4 file system
* Optimize online defragmentation by using folios instead of individual
buffer heads
* Improve error codes stored in the superblock when the journal aborts
* Minor cleanups and clarifications in ext4_map_blocks()
* Add documentation of the casefold and encrypt flags
* Add support for file systems with a blocksize greater than the pagesize
* Improve performance by enabling the caching the fact that an inode does
not have a Posix ACL.
Various Bug Fixes
* Fix false positive compliants from smatch
* Fix error code which is returned by ext4fs_dirhash() when Siphash is
used without the encryption key
* Fix races when writing to inline data files which could trigger a BUG
* Fix potential NULL dereference when there is an corrupt file system with
an extended attribute value stored in a inode
* Fix false positive lockdep report when syzbot uses ext4 and ocfs2 together
* Fix false positive reported by DEPT by adjusting lock annotation
* Avoid a potential BUG_ON in jbd2 when a file system is massively corrupted
* Fix a WARN_ON when superblock is corrupted with a non-NULL terminated
mount options field
* Add check if the userspace passes in a non-NULL terminated mount options
field to EXT4_IOC_SET_TUNE_SB_PARAM
* Fix a potential journal checksum failure whena file system is copied while
it is mounted read-only
* Fix a potential potential orphan file tracking error which only showed
on 32-bit systems
* Fix assertion checks in mballoc (which have to be explicitly enbled by
manually enabling AGGRESSIVE_CHECKS and recompiling)
* Avoid complaining about overly large orphan files created by mke2fs with
with file systems with a 64k block size
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Merge tag 'ext4_for_linus-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"New features and improvements for the ext4 file system:
- Optimize online defragmentation by using folios instead of
individual buffer heads
- Improve error codes stored in the superblock when the journal
aborts
- Minor cleanups and clarifications in ext4_map_blocks()
- Add documentation of the casefold and encrypt flags
- Add support for file systems with a blocksize greater than the
pagesize
- Improve performance by enabling the caching the fact that an inode
does not have a Posix ACL
Various Bug Fixes:
- Fix false positive complaints from smatch
- Fix error code which is returned by ext4fs_dirhash() when Siphash
is used without the encryption key
- Fix races when writing to inline data files which could trigger a
BUG
- Fix potential NULL dereference when there is an corrupt file system
with an extended attribute value stored in a inode
- Fix false positive lockdep report when syzbot uses ext4 and ocfs2
together
- Fix false positive reported by DEPT by adjusting lock annotation
- Avoid a potential BUG_ON in jbd2 when a file system is massively
corrupted
- Fix a WARN_ON when superblock is corrupted with a non-NULL
terminated mount options field
- Add check if the userspace passes in a non-NULL terminated mount
options field to EXT4_IOC_SET_TUNE_SB_PARAM
- Fix a potential journal checksum failure whena file system is
copied while it is mounted read-only
- Fix a potential potential orphan file tracking error which only
showed on 32-bit systems
- Fix assertion checks in mballoc (which have to be explicitly enbled
by manually enabling AGGRESSIVE_CHECKS and recompiling)
- Avoid complaining about overly large orphan files created by mke2fs
with with file systems with a 64k block size"
* tag 'ext4_for_linus-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (58 commits)
ext4: mark inodes without acls in __ext4_iget()
ext4: enable block size larger than page size
ext4: add checks for large folio incompatibilities when BS > PS
ext4: support verifying data from large folios with fs-verity
ext4: make data=journal support large block size
ext4: support large block size in __ext4_block_zero_page_range()
ext4: support large block size in mpage_prepare_extent_to_map()
ext4: support large block size in mpage_map_and_submit_buffers()
ext4: support large block size in ext4_block_write_begin()
ext4: support large block size in ext4_mpage_readpages()
ext4: rename 'page' references to 'folio' in multi-block allocator
ext4: prepare buddy cache inode for BS > PS with large folios
ext4: support large block size in ext4_mb_init_cache()
ext4: support large block size in ext4_mb_get_buddy_page_lock()
ext4: support large block size in ext4_mb_load_buddy_gfp()
ext4: add EXT4_LBLK_TO_PG and EXT4_PG_TO_LBLK for block/page conversion
ext4: add EXT4_LBLK_TO_B macro for logical block to bytes conversion
ext4: support large block size in ext4_readdir()
ext4: support large block size in ext4_calculate_overhead()
ext4: introduce s_min_folio_order for future BS > PS support
...
|
||
|
Linus Torvalds
|
afcbce74f3 |
gfs2 changes
- Major withdraw / error handling overhaul based on dlm's new DLM_RELEASE_RECOVER feature: this allows gfs to treat withdraws like node failures. Make withdraws asynchronous. - Fix a bug in commit |
||
|
Linus Torvalds
|
869737543b |
Forty four smb client and server changesets
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Merge tag 'v6.19-rc-smb-fixes' of git://git.samba.org/ksmbd
Pull smb client and server updates from Steve French:
- server fixes:
- IPC use after free locking fix
- fix locking bug in delete paths
- fix use after free in disconnect
- fix underflow in locking check
- error mapping improvement
- socket listening improvement
- return code mapping fixes
- crypto improvements (use default libraries)
- cleanup patches:
- netfs
- client checkpatch cleanup
- server cleanup
- move server/client duplicate code to common code
- fix some defines to better match protocol specification
- smbdirect (RDMA) fixes
- client debugging improvements for leases
* tag 'v6.19-rc-smb-fixes' of git://git.samba.org/ksmbd: (44 commits)
cifs: Use netfs_alloc/free_folioq_buffer()
smb: client: show smb lease key in open_dirs output
smb: client: show smb lease key in open_files output
ksmbd: ipc: fix use-after-free in ipc_msg_send_request
smb: client: relax WARN_ON_ONCE(SMBDIRECT_SOCKET_*) checks in recv_done() and smbd_conn_upcall()
smb: server: relax WARN_ON_ONCE(SMBDIRECT_SOCKET_*) checks in recv_done() and smb_direct_cm_handler()
smb: smbdirect: introduce SMBDIRECT_CHECK_STATUS_{WARN,DISCONNECT}()
smb: smbdirect: introduce SMBDIRECT_DEBUG_ERR_PTR() helper
ksmbd: vfs: fix race on m_flags in vfs_cache
ksmbd: Replace strcpy + strcat to improve convert_to_nt_pathname
smb: move FILE_SYSTEM_ATTRIBUTE_INFO to common/fscc.h
ksmbd: implement error handling for STATUS_INFO_LENGTH_MISMATCH in smb server
ksmbd: fix use-after-free in ksmbd_tree_connect_put under concurrency
ksmbd: server: avoid busy polling in accept loop
smb: move create_durable_reconn to common/smb2pdu.h
smb: fix some warnings reported by scripts/checkpatch.pl
smb: do some cleanups
smb: move FILE_SYSTEM_SIZE_INFO to common/fscc.h
smb: move some duplicate struct definitions to common/fscc.h
smb: move list of FileSystemAttributes to common/fscc.h
...
|
||
|
Linus Torvalds
|
3ed1c68307 |
xfs: new code for v6.19
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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Merge tag 'xfs-merge-6.19' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs updates from Carlos Maiolino:
"There are no major changes in xfs. This contains mostly some code
cleanups, a few bug fixes and documentation update. Highlights are:
- Quota locking cleanup
- Getting rid of old xlog_in_core_2_t type"
* tag 'xfs-merge-6.19' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (33 commits)
docs: remove obsolete links in the xfs online repair documentation
xfs: move some code out of xfs_iget_recycle
xfs: use zi more in xfs_zone_gc_mount
xfs: remove the unused bv field in struct xfs_gc_bio
xfs: remove xarray mark for reclaimable zones
xfs: remove the xlog_in_core_t typedef
xfs: remove l_iclog_heads
xfs: remove the xlog_rec_header_t typedef
xfs: remove xlog_in_core_2_t
xfs: remove a very outdated comment from xlog_alloc_log
xfs: cleanup xlog_alloc_log a bit
xfs: don't use xlog_in_core_2_t in struct xlog_in_core
xfs: add a on-disk log header cycle array accessor
xfs: add a XLOG_CYCLE_DATA_SIZE constant
xfs: reduce ilock roundtrips in xfs_qm_vop_dqalloc
xfs: move xfs_dquot_tree calls into xfs_qm_dqget_cache_{lookup,insert}
xfs: move quota locking into xrep_quota_item
xfs: move quota locking into xqcheck_commit_dquot
xfs: move q_qlock locking into xqcheck_compare_dquot
xfs: move q_qlock locking into xchk_quota_item
...
|
||
|
Linus Torvalds
|
477e31fd1e |
Changes since last update:
- Fix a WARNING caused by a recent FSDAX misdetection regression - Fix the filesystem stacking limit for file-backed mounts - Print more informative diagnostics on decompression errors - Switch the on-disk definition `erofs_fs.h` to the MIT license - Minor cleanups -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEQ0A6bDUS9Y+83NPFUXZn5Zlu5qoFAmktfSQRHHhpYW5nQGtl cm5lbC5vcmcACgkQUXZn5Zlu5qoNlw/+K4F9wH6re9fXqrvkyCB96W66LtBMvbiU VYObkonp/SJuqwBzg+V9HpJvR+rMVhaWvpWFc56sCi3IHGyYxQXh5kMfb0AZlbjQ VoeiYqGzyyLoj0HAGOt2dwEfRR51ZNvhNU9WdOjDj6pJFAnQfPyAJTb3MFZdKmJv fqHpr16AK5duMjK5fS+bTA5khq6teyB7RD91cq3aZPW9CUTnltA6N4nIMes2J378 LvDnXebx+BCsKZaNv39LzLlMoCpCZsQeJVMxaka4d55+BHvLfIjHInisWOAS4faC wcHU5NVrEdvfU+CVJ+bg7KJfvAWYxWJkm9QBLAlSi6AfBlHllhOvLOwxjk2O/cHZ 95F/zcZ2rA0iFHHAljMeIY/01+UbWlAeksvtQEm9TrS8B1sRGCagOHaQD/UylOq0 o+xwmUAP98JxClLPttChWC/wpu7800O0jC4gpu/VGMdFcsbSTLIk0ZujMl0GS5os UpwIYD0WHuyt9e16+p602HBbdtx1ayEWW45c1F5FBy7j3jbG02BIFqKiVCf9wSgQ ONGZoCQRpxftLjc9SL3Z+bX2PfaZwYHNf6DuFjQbxthro978qa5350dkBLVAFoaq DgJ6NZ+Zun9NqInIBMTqJmlj0pr2ElCWPFbftAb2SyT9G2j9zIuq6XjXtFU9+4I6 SrGCKxOlzRM= =vdh2 -----END PGP SIGNATURE----- Merge tag 'erofs-for-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs Pull erofs updates from Gao Xiang: - Fix a WARNING caused by a recent FSDAX misdetection regression - Fix the filesystem stacking limit for file-backed mounts - Print more informative diagnostics on decompression errors - Switch the on-disk definition `erofs_fs.h` to the MIT license - Minor cleanups * tag 'erofs-for-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs: erofs: switch on-disk header `erofs_fs.h` to MIT license erofs: get rid of raw bi_end_io() usage erofs: enable error reporting for z_erofs_fixup_insize() erofs: enable error reporting for z_erofs_stream_switch_bufs() erofs: improve Zstd, LZMA and DEFLATE error strings erofs: improve decompression error reporting erofs: tidy up z_erofs_lz4_handle_overlap() erofs: limit the level of fs stacking for file-backed mounts erofs: correct FSDAX detection |
||
|
Linus Torvalds
|
ca010e2ef6 |
hfs/hfsplus updates for v6.19
- hfs/hfsplus: move on-disk layout declarations into hfs_common.h
- hfsplus: fix volume corruption issue for generic/101
- hfsplus: introduce KUnit tests for HFS+ string operations
- hfs: introduce KUnit tests for HFS string operations
- hfsplus: fix volume corruption issue for generic/073
- hfsplus: Verify inode mode when loading from disk
- hfsplus: fix volume corruption issue for generic/070
- hfs/hfsplus: prevent getting negative values of offset/length
- hfsplus: fix missing hfs_bnode_get() in __hfs_bnode_create
- hfs: fix potential use after free in hfs_correct_next_unused_CNID()
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Merge tag 'hfs-v6.19-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/vdubeyko/hfs
Pull hfs/hfsplus updates from Viacheslav Dubeyko:
"Several fixes for syzbot reported issues, HFS/HFS+ fixes of xfstests
failures, Kunit-based unit-tests introduction, and code cleanup:
- Dan Carpenter fixed a potential use-after-free issue in
hfs_correct_next_unused_CNID() method. Tetsuo Handa has made nice
fix of syzbot reported issue related to incorrect inode->i_mode
management if volume has been corrupted somehow. Yang Chenzhi has
made really good fix of potential race condition in
__hfs_bnode_create() method for HFS+ file system.
- Several fixes to xfstests failures. Particularly, generic/070,
generic/073, and generic/101 test-cases finish successfully for the
case of HFS+ file system right now.
- HFS and HFS+ drivers share multiple structures of on-disk layout
declarations. Some structures are used without any change. However,
we had two independent declarations of the same structures in HFS
and HFS+ drivers.
The on-disk layout declarations have been moved into
include/linux/hfs_common.h with the goal to exclude the
declarations duplication and to keep the HFS/HFS+ on-disk layout
declarations in one place.
Also, this patch prepares the basis for creating a hfslib that can
aggregate common functionality without necessity to duplicate the
same code in HFS and HFS+ drivers.
- HFS/HFS+ really need unit-tests because of multiple xfstests
failures. The first two patches introduce Kunit-based unit-tests
for the case string operations in HFS/HFS+ file system drivers"
* tag 'hfs-v6.19-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/vdubeyko/hfs:
hfs/hfsplus: move on-disk layout declarations into hfs_common.h
hfsplus: fix volume corruption issue for generic/101
hfsplus: introduce KUnit tests for HFS+ string operations
hfs: introduce KUnit tests for HFS string operations
hfsplus: fix volume corruption issue for generic/073
hfsplus: Verify inode mode when loading from disk
hfsplus: fix volume corruption issue for generic/070
hfs/hfsplus: prevent getting negative values of offset/length
hfsplus: fix missing hfs_bnode_get() in __hfs_bnode_create
hfs: fix potential use after free in hfs_correct_next_unused_CNID()
|
||
|
Linus Torvalds
|
7696286034 |
for-6.19-tag
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Merge tag 'for-6.19-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"Features:
- shutdown ioctl support (needs CONFIG_BTRFS_EXPERIMENTAL for now):
- set filesystem state as being shut down (also named going down
in other filesystems), where all active operations return EIO
and this cannot be changed until unmount
- pending operations are attempted to be finished but error
messages may still show up depending on where exactly the
shutdown happened
- scrub (and device replace) vs suspend/hibernate:
- a running scrub will prevent suspend, which can be annoying as
suspend is an immediate request and scrub is not critical
- filesystem freezing before suspend was not sufficient as the
problem was in process freezing
- behaviour change: on suspend scrub and device replace are
cancelled, where scrub can record the last state and continue
from there; the device replace has to be restarted from the
beginning
- zone stats exported in sysfs, from the perspective of the
filesystem this includes active, reclaimable, relocation etc zones
Performance:
- improvements when processing space reservation tickets by
optimizing locking and shrinking critical sections, cumulative
improvements in lockstat numbers show +15%
Notable fixes:
- use vmalloc fallback when allocating bios as high order allocations
can happen with wide checksums (like sha256)
- scrub will always track the last position of progress so it's not
starting from zero after an error
Core:
- under experimental config, checksum calculations are offloaded to
process context, simplifies locking and allows to remove
compression write worker kthread(s):
- speed improvement in direct IO throughput with buffered IO
fallback is +15% when not offloaded but this is more related to
internal crypto subsystem improvements
- this will be probably default in the future removing the sysfs
tunable
- (experimental) block size > page size updates:
- support more operations when not using large folios (encoded
read/write and send)
- raid56
- more preparations for fscrypt support
Other:
- more conversions to auto-cleaned variables
- parameter cleanups and removals
- extended warning fixes
- improved printing of structured values like keys
- lots of other cleanups and refactoring"
* tag 'for-6.19-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (147 commits)
btrfs: remove unnecessary inode key in btrfs_log_all_parents()
btrfs: remove redundant zero/NULL initializations in btrfs_alloc_root()
btrfs: remaining BTRFS_PATH_AUTO_FREE conversions
btrfs: send: do not allocate memory for xattr data when checking it exists
btrfs: send: add unlikely to all unexpected overflow checks
btrfs: reduce arguments to btrfs_del_inode_ref_in_log()
btrfs: remove root argument from btrfs_del_dir_entries_in_log()
btrfs: use test_and_set_bit() in btrfs_delayed_delete_inode_ref()
btrfs: don't search back for dir inode item in INO_LOOKUP_USER
btrfs: don't rewrite ret from inode_permission
btrfs: add orig_logical to btrfs_bio for encryption
btrfs: disable verity on encrypted inodes
btrfs: disable various operations on encrypted inodes
btrfs: remove redundant level reset in btrfs_del_items()
btrfs: simplify leaf traversal after path release in btrfs_next_old_leaf()
btrfs: optimize balance_level() path reference handling
btrfs: factor out root promotion logic into promote_child_to_root()
btrfs: raid56: remove the "_step" infix
btrfs: raid56: enable bs > ps support
btrfs: raid56: prepare finish_parity_scrub() to support bs > ps cases
...
|
||
|
Linus Torvalds
|
cc25df3e2e |
for-6.19/block-20251201
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Merge tag 'for-6.19/block-20251201' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block updates from Jens Axboe:
- Fix head insertion for mq-deadline, a regression from when priority
support was added
- Series simplifying and improving the ublk user copy code
- Various ublk related cleanups
- Fixup REQ_NOWAIT handling in loop/zloop, clearing NOWAIT when the
request is punted to a thread for handling
- Merge and then later revert loop dio nowait support, as it ended up
causing excessive stack usage for when the inline issue code needs to
dip back into the full file system code
- Improve auto integrity code, making it less deadlock prone
- Speedup polled IO handling, but manually managing the hctx lookups
- Fixes for blk-throttle for SSD devices
- Small series with fixes for the S390 dasd driver
- Add support for caching zones, avoiding unnecessary report zone
queries
- MD pull requests via Yu:
- fix null-ptr-dereference regression for dm-raid0
- fix IO hang for raid5 when array is broken with IO inflight
- remove legacy 1s delay to speed up system shutdown
- change maintainer's email address
- data can be lost if array is created with different lbs devices,
fix this problem and record lbs of the array in metadata
- fix rcu protection for md_thread
- fix mddev kobject lifetime regression
- enable atomic writes for md-linear
- some cleanups
- bcache updates via Coly
- remove useless discard and cache device code
- improve usage of per-cpu workqueues
- Reorganize the IO scheduler switching code, fixing some lockdep
reports as well
- Improve the block layer P2P DMA support
- Add support to the block tracing code for zoned devices
- Segment calculation improves, and memory alignment flexibility
improvements
- Set of prep and cleanups patches for ublk batching support. The
actual batching hasn't been added yet, but helps shrink down the
workload of getting that patchset ready for 6.20
- Fix for how the ps3 block driver handles segments offsets
- Improve how block plugging handles batch tag allocations
- nbd fixes for use-after-free of the configuration on device clear/put
- Set of improvements and fixes for zloop
- Add Damien as maintainer of the block zoned device code handling
- Various other fixes and cleanups
* tag 'for-6.19/block-20251201' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (162 commits)
block/rnbd: correct all kernel-doc complaints
blk-mq: use queue_hctx in blk_mq_map_queue_type
md: remove legacy 1s delay in md_notify_reboot
md/raid5: fix IO hang when array is broken with IO inflight
md: warn about updating super block failure
md/raid0: fix NULL pointer dereference in create_strip_zones() for dm-raid
sbitmap: fix all kernel-doc warnings
ublk: add helper of __ublk_fetch()
ublk: pass const pointer to ublk_queue_is_zoned()
ublk: refactor auto buffer register in ublk_dispatch_req()
ublk: add `union ublk_io_buf` with improved naming
ublk: add parameter `struct io_uring_cmd *` to ublk_prep_auto_buf_reg()
kfifo: add kfifo_alloc_node() helper for NUMA awareness
blk-mq: fix potential uaf for 'queue_hw_ctx'
blk-mq: use array manage hctx map instead of xarray
ublk: prevent invalid access with DEBUG
s390/dasd: Use scnprintf() instead of sprintf()
s390/dasd: Move device name formatting into separate function
s390/dasd: Remove unnecessary debugfs_create() return checks
s390/dasd: Fix gendisk parent after copy pair swap
...
|
||
|
Linus Torvalds
|
0abcfd8983 |
for-6.19/io_uring-20251201
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||
|
Linus Torvalds
|
8f7aa3d3c7 |
Networking changes for 6.19.
Core & protocols
----------------
- Replace busylock at the Tx queuing layer with a lockless list. Resulting
in a 300% (4x) improvement on heavy TX workloads, sending twice the
number of packets per second, for half the cpu cycles.
- Allow constantly busy flows to migrate to a more suitable CPU/NIC
queue. Normally we perform queue re-selection when flow comes out
of idle, but under extreme circumstances the flows may be constantly
busy. Add sysctl to allow periodic rehashing even if it'd risk packet
reordering.
- Optimize the NAPI skb cache, make it larger, use it in more paths.
- Attempt returning Tx skbs to the originating CPU (like we already did
for Rx skbs).
- Various data structure layout and prefetch optimizations from Eric.
- Remove ktime_get() from the recvmsg() fast path, ktime_get() is sadly
quite expensive on recent AMD machines.
- Extend threaded NAPI polling to allow the kthread busy poll for packets.
- Make MPTCP use Rx backlog processing. This lowers the lock pressure,
improving the Rx performance.
- Support memcg accounting of MPTCP socket memory.
- Allow admin to opt sockets out of global protocol memory accounting
(using a sysctl or BPF-based policy). The global limits are a poor fit
for modern container workloads, where limits are imposed using cgroups.
- Improve heuristics for when to kick off AF_UNIX garbage collection.
- Allow users to control TCP SACK compression, and default to 33% of RTT.
- Add tcp_rcvbuf_low_rtt sysctl to let datacenter users avoid unnecessarily
aggressive rcvbuf growth and overshot when the connection RTT is low.
- Preserve skb metadata space across skb_push / skb_pull operations.
- Support for IPIP encapsulation in the nftables flowtable offload.
- Support appending IP interface information to ICMP messages (RFC 5837).
- Support setting max record size in TLS (RFC 8449).
- Remove taking rtnl_lock from RTM_GETNEIGHTBL and RTM_SETNEIGHTBL.
- Use a dedicated lock (and RCU) in MPLS, instead of rtnl_lock.
- Let users configure the number of write buffers in SMC.
- Add new struct sockaddr_unsized for sockaddr of unknown length,
from Kees.
- Some conversions away from the crypto_ahash API, from Eric Biggers.
- Some preparations for slimming down struct page.
- YAML Netlink protocol spec for WireGuard.
- Add a tool on top of YAML Netlink specs/lib for reporting commonly
computed derived statistics and summarized system state.
Driver API
----------
- Add CAN XL support to the CAN Netlink interface.
- Add uAPI for reporting PHY Mean Square Error (MSE) diagnostics,
as defined by the OPEN Alliance's "Advanced diagnostic features
for 100BASE-T1 automotive Ethernet PHYs" specification.
- Add DPLL phase-adjust-gran pin attribute (and implement it in zl3073x).
- Refactor xfrm_input lock to reduce contention when NIC offloads IPsec
and performs RSS.
- Add info to devlink params whether the current setting is the default
or a user override. Allow resetting back to default.
- Add standard device stats for PSP crypto offload.
- Leverage DSA frame broadcast to implement simple HSR frame duplication
for a lot of switches without dedicated HSR offload.
- Add uAPI defines for 1.6Tbps link modes.
Device drivers
--------------
- Add Motorcomm YT921x gigabit Ethernet switch support.
- Add MUCSE driver for N500/N210 1GbE NIC series.
- Convert drivers to support dedicated ops for timestamping control,
and away from the direct IOCTL handling. While at it support GET
operations for PHY timestamping.
- Add (and convert most drivers to) a dedicated ethtool callback
for reading the Rx ring count.
- Significant refactoring efforts in the STMMAC driver, which supports
Synopsys turn-key MAC IP integrated into a ton of SoCs.
- Ethernet high-speed NICs:
- Broadcom (bnxt):
- support PPS in/out on all pins
- Intel (100G, ice, idpf):
- ice: implement standard ethtool and timestamping stats
- i40e: support setting the max number of MAC addresses per VF
- iavf: support RSS of GTP tunnels for 5G and LTE deployments
- nVidia/Mellanox (mlx5):
- reduce downtime on interface reconfiguration
- disable being an XDP redirect target by default (same as other
drivers) to avoid wasting resources if feature is unused
- Meta (fbnic):
- add support for Linux-managed PCS on 25G, 50G, and 100G links
- Wangxun:
- support Rx descriptor merge, and Tx head writeback
- support Rx coalescing offload
- support 25G SPF and 40G QSFP modules
- Ethernet virtual:
- Google (gve):
- allow ethtool to configure rx_buf_len
- implement XDP HW RX Timestamping support for DQ descriptor format
- Microsoft vNIC (mana):
- support HW link state events
- handle hardware recovery events when probing the device
- Ethernet NICs consumer, and embedded:
- usbnet: add support for Byte Queue Limits (BQL)
- AMD (amd-xgbe):
- add device selftests
- NXP (enetc):
- add i.MX94 support
- Broadcom integrated MACs (bcmgenet, bcmasp):
- bcmasp: add support for PHY-based Wake-on-LAN
- Broadcom switches (b53):
- support port isolation
- support BCM5389/97/98 and BCM63XX ARL formats
- Lantiq/MaxLinear switches:
- support bridge FDB entries on the CPU port
- use regmap for register access
- allow user to enable/disable learning
- support Energy Efficient Ethernet
- support configuring RMII clock delays
- add tagging driver for MaxLinear GSW1xx switches
- Synopsys (stmmac):
- support using the HW clock in free running mode
- add Eswin EIC7700 support
- add Rockchip RK3506 support
- add Altera Agilex5 support
- Cadence (macb):
- cleanup and consolidate descriptor and DMA address handling
- add EyeQ5 support
- TI:
- icssg-prueth: support AF_XDP
- Airoha access points:
- add missing Ethernet stats and link state callback
- add AN7583 support
- support out-of-order Tx completion processing
- Power over Ethernet:
- pd692x0: preserve PSE configuration across reboots
- add support for TPS23881B devices
- Ethernet PHYs:
- Open Alliance OATC14 10BASE-T1S PHY cable diagnostic support
- Support 50G SerDes and 100G interfaces in Linux-managed PHYs
- micrel:
- support for non PTP SKUs of lan8814
- enable in-band auto-negotiation on lan8814
- realtek:
- cable testing support on RTL8224
- interrupt support on RTL8221B
- motorcomm: support for PHY LEDs on YT853
- microchip: support for LAN867X Rev.D0 PHYs w/ SQI and cable diag
- mscc: support for PHY LED control
- CAN drivers:
- m_can: add support for optional reset and system wake up
- remove can_change_mtu() obsoleted by core handling
- mcp251xfd: support GPIO controller functionality
- Bluetooth:
- add initial support for PASTa
- WiFi:
- split ieee80211.h file, it's way too big
- improvements in VHT radiotap reporting, S1G, Channel Switch
Announcement handling, rate tracking in mesh networks
- improve multi-radio monitor mode support, and add a cfg80211 debugfs
interface for it
- HT action frame handling on 6 GHz
- initial chanctx work towards NAN
- MU-MIMO sniffer improvements
- WiFi drivers:
- RealTek (rtw89):
- support USB devices RTL8852AU and RTL8852CU
- initial work for RTL8922DE
- improved injection support
- Intel:
- iwlwifi: new sniffer API support
- MediaTek (mt76):
- WED support for >32-bit DMA
- airoha NPU support
- regdomain improvements
- continued WiFi7/MLO work
- Qualcomm/Atheros:
- ath10k: factory test support
- ath11k: TX power insertion support
- ath12k: BSS color change support
- ath12k: statistics improvements
- brcmfmac: Acer A1 840 tablet quirk
- rtl8xxxu: 40 MHz connection fixes/support
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core & protocols:
- Replace busylock at the Tx queuing layer with a lockless list.
Resulting in a 300% (4x) improvement on heavy TX workloads, sending
twice the number of packets per second, for half the cpu cycles.
- Allow constantly busy flows to migrate to a more suitable CPU/NIC
queue.
Normally we perform queue re-selection when flow comes out of idle,
but under extreme circumstances the flows may be constantly busy.
Add sysctl to allow periodic rehashing even if it'd risk packet
reordering.
- Optimize the NAPI skb cache, make it larger, use it in more paths.
- Attempt returning Tx skbs to the originating CPU (like we already
did for Rx skbs).
- Various data structure layout and prefetch optimizations from Eric.
- Remove ktime_get() from the recvmsg() fast path, ktime_get() is
sadly quite expensive on recent AMD machines.
- Extend threaded NAPI polling to allow the kthread busy poll for
packets.
- Make MPTCP use Rx backlog processing. This lowers the lock
pressure, improving the Rx performance.
- Support memcg accounting of MPTCP socket memory.
- Allow admin to opt sockets out of global protocol memory accounting
(using a sysctl or BPF-based policy). The global limits are a poor
fit for modern container workloads, where limits are imposed using
cgroups.
- Improve heuristics for when to kick off AF_UNIX garbage collection.
- Allow users to control TCP SACK compression, and default to 33% of
RTT.
- Add tcp_rcvbuf_low_rtt sysctl to let datacenter users avoid
unnecessarily aggressive rcvbuf growth and overshot when the
connection RTT is low.
- Preserve skb metadata space across skb_push / skb_pull operations.
- Support for IPIP encapsulation in the nftables flowtable offload.
- Support appending IP interface information to ICMP messages (RFC
5837).
- Support setting max record size in TLS (RFC 8449).
- Remove taking rtnl_lock from RTM_GETNEIGHTBL and RTM_SETNEIGHTBL.
- Use a dedicated lock (and RCU) in MPLS, instead of rtnl_lock.
- Let users configure the number of write buffers in SMC.
- Add new struct sockaddr_unsized for sockaddr of unknown length,
from Kees.
- Some conversions away from the crypto_ahash API, from Eric Biggers.
- Some preparations for slimming down struct page.
- YAML Netlink protocol spec for WireGuard.
- Add a tool on top of YAML Netlink specs/lib for reporting commonly
computed derived statistics and summarized system state.
Driver API:
- Add CAN XL support to the CAN Netlink interface.
- Add uAPI for reporting PHY Mean Square Error (MSE) diagnostics, as
defined by the OPEN Alliance's "Advanced diagnostic features for
100BASE-T1 automotive Ethernet PHYs" specification.
- Add DPLL phase-adjust-gran pin attribute (and implement it in
zl3073x).
- Refactor xfrm_input lock to reduce contention when NIC offloads
IPsec and performs RSS.
- Add info to devlink params whether the current setting is the
default or a user override. Allow resetting back to default.
- Add standard device stats for PSP crypto offload.
- Leverage DSA frame broadcast to implement simple HSR frame
duplication for a lot of switches without dedicated HSR offload.
- Add uAPI defines for 1.6Tbps link modes.
Device drivers:
- Add Motorcomm YT921x gigabit Ethernet switch support.
- Add MUCSE driver for N500/N210 1GbE NIC series.
- Convert drivers to support dedicated ops for timestamping control,
and away from the direct IOCTL handling. While at it support GET
operations for PHY timestamping.
- Add (and convert most drivers to) a dedicated ethtool callback for
reading the Rx ring count.
- Significant refactoring efforts in the STMMAC driver, which
supports Synopsys turn-key MAC IP integrated into a ton of SoCs.
- Ethernet high-speed NICs:
- Broadcom (bnxt):
- support PPS in/out on all pins
- Intel (100G, ice, idpf):
- ice: implement standard ethtool and timestamping stats
- i40e: support setting the max number of MAC addresses per VF
- iavf: support RSS of GTP tunnels for 5G and LTE deployments
- nVidia/Mellanox (mlx5):
- reduce downtime on interface reconfiguration
- disable being an XDP redirect target by default (same as
other drivers) to avoid wasting resources if feature is
unused
- Meta (fbnic):
- add support for Linux-managed PCS on 25G, 50G, and 100G links
- Wangxun:
- support Rx descriptor merge, and Tx head writeback
- support Rx coalescing offload
- support 25G SPF and 40G QSFP modules
- Ethernet virtual:
- Google (gve):
- allow ethtool to configure rx_buf_len
- implement XDP HW RX Timestamping support for DQ descriptor
format
- Microsoft vNIC (mana):
- support HW link state events
- handle hardware recovery events when probing the device
- Ethernet NICs consumer, and embedded:
- usbnet: add support for Byte Queue Limits (BQL)
- AMD (amd-xgbe):
- add device selftests
- NXP (enetc):
- add i.MX94 support
- Broadcom integrated MACs (bcmgenet, bcmasp):
- bcmasp: add support for PHY-based Wake-on-LAN
- Broadcom switches (b53):
- support port isolation
- support BCM5389/97/98 and BCM63XX ARL formats
- Lantiq/MaxLinear switches:
- support bridge FDB entries on the CPU port
- use regmap for register access
- allow user to enable/disable learning
- support Energy Efficient Ethernet
- support configuring RMII clock delays
- add tagging driver for MaxLinear GSW1xx switches
- Synopsys (stmmac):
- support using the HW clock in free running mode
- add Eswin EIC7700 support
- add Rockchip RK3506 support
- add Altera Agilex5 support
- Cadence (macb):
- cleanup and consolidate descriptor and DMA address handling
- add EyeQ5 support
- TI:
- icssg-prueth: support AF_XDP
- Airoha access points:
- add missing Ethernet stats and link state callback
- add AN7583 support
- support out-of-order Tx completion processing
- Power over Ethernet:
- pd692x0: preserve PSE configuration across reboots
- add support for TPS23881B devices
- Ethernet PHYs:
- Open Alliance OATC14 10BASE-T1S PHY cable diagnostic support
- Support 50G SerDes and 100G interfaces in Linux-managed PHYs
- micrel:
- support for non PTP SKUs of lan8814
- enable in-band auto-negotiation on lan8814
- realtek:
- cable testing support on RTL8224
- interrupt support on RTL8221B
- motorcomm: support for PHY LEDs on YT853
- microchip: support for LAN867X Rev.D0 PHYs w/ SQI and cable diag
- mscc: support for PHY LED control
- CAN drivers:
- m_can: add support for optional reset and system wake up
- remove can_change_mtu() obsoleted by core handling
- mcp251xfd: support GPIO controller functionality
- Bluetooth:
- add initial support for PASTa
- WiFi:
- split ieee80211.h file, it's way too big
- improvements in VHT radiotap reporting, S1G, Channel Switch
Announcement handling, rate tracking in mesh networks
- improve multi-radio monitor mode support, and add a cfg80211
debugfs interface for it
- HT action frame handling on 6 GHz
- initial chanctx work towards NAN
- MU-MIMO sniffer improvements
- WiFi drivers:
- RealTek (rtw89):
- support USB devices RTL8852AU and RTL8852CU
- initial work for RTL8922DE
- improved injection support
- Intel:
- iwlwifi: new sniffer API support
- MediaTek (mt76):
- WED support for >32-bit DMA
- airoha NPU support
- regdomain improvements
- continued WiFi7/MLO work
- Qualcomm/Atheros:
- ath10k: factory test support
- ath11k: TX power insertion support
- ath12k: BSS color change support
- ath12k: statistics improvements
- brcmfmac: Acer A1 840 tablet quirk
- rtl8xxxu: 40 MHz connection fixes/support"
* tag 'net-next-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1381 commits)
net: page_pool: sanitise allocation order
net: page pool: xa init with destroy on pp init
net/mlx5e: Support XDP target xmit with dummy program
net/mlx5e: Update XDP features in switch channels
selftests/tc-testing: Test CAKE scheduler when enqueue drops packets
net/sched: sch_cake: Fix incorrect qlen reduction in cake_drop
wireguard: netlink: generate netlink code
wireguard: uapi: generate header with ynl-gen
wireguard: uapi: move flag enums
wireguard: uapi: move enum wg_cmd
wireguard: netlink: add YNL specification
selftests: drv-net: Fix tolerance calculation in devlink_rate_tc_bw.py
selftests: drv-net: Fix and clarify TC bandwidth split in devlink_rate_tc_bw.py
selftests: drv-net: Set shell=True for sysfs writes in devlink_rate_tc_bw.py
selftests: drv-net: Use Iperf3Runner in devlink_rate_tc_bw.py
selftests: drv-net: introduce Iperf3Runner for measurement use cases
selftests: drv-net: Add devlink_rate_tc_bw.py to TEST_PROGS
net: ps3_gelic_net: Use napi_alloc_skb() and napi_gro_receive()
Documentation: net: dsa: mention simple HSR offload helpers
Documentation: net: dsa: mention availability of RedBox
...
|
||
|
Linus Torvalds
|
015e7b0b0e |
bpf-next-6.19
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE+soXsSLHKoYyzcli6rmadz2vbToFAmktzC4ACgkQ6rmadz2v bTpA1w/+PZ45N3y6O+NQVIpBlpnHG7DEMK7Lw19On0xVLwH+XPHz6J5PEfzjyJR1 SCbsV30qkJ1YCtgRHHf+ZCuWPWm58hY8dXYwSDyjNavdQyVGOdf17aBu9pvH45NW K20OhwQHpCHWIfDlijjPkDdiHnYf5S7Xy6ctt/3ztF0pMDHIaghGxJymG4wULcDT iLKnT37kwO8b2ihmw/HbcZPQYMWfHRye7X009K+wCv0dnhJ6q/Ny1m+Pg4kF92e6 ON/RY26ep2dq7LpaNWa1rI1yOgFlI7uUlVojqrAuAb+xrg+64wUDBxeijvE37EN1 s/+PuEKAR6xwz1dbY2cWAI0D633saz24UdV6kCBW9HrjHKVRQ7ZSsBF9ENkS4DTK nowx4wOe1ZHc/6YgTktZp9LEn/0YrmQtFxjqEAJiYUgD18FrBrSjmhHpBiL+HghP sTqy41qDQGoKtg3bRu42Co9wmNeeLsnxT8NQExCmTYQ4ufpdA/VMQux9cBVX3GBq EchJb465+AcvvCJUiKbnHLxDsHCQz1YYytz3RqyFLgGDFZnHOE0FjwPJmM8I5kkK gvDB3ZYdO3Halm8BZfZZBnKv5uK7myuAWwqRLgMRanuZcRgmIV1oUP5EP88HdH75 fB20vZSVcfzB17SLyhiM20ivEWodJa9VCLEw9WDOmDoml+33Pks= =kaCJ -----END PGP SIGNATURE----- Merge tag 'bpf-next-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next Pull bpf updates from Alexei Starovoitov: - Convert selftests/bpf/test_tc_edt and test_tc_tunnel from .sh to test_progs runner (Alexis Lothoré) - Convert selftests/bpf/test_xsk to test_progs runner (Bastien Curutchet) - Replace bpf memory allocator with kmalloc_nolock() in bpf_local_storage (Amery Hung), and in bpf streams and range tree (Puranjay Mohan) - Introduce support for indirect jumps in BPF verifier and x86 JIT (Anton Protopopov) and arm64 JIT (Puranjay Mohan) - Remove runqslower bpf tool (Hoyeon Lee) - Fix corner cases in the verifier to close several syzbot reports (Eduard Zingerman, KaFai Wan) - Several improvements in deadlock detection in rqspinlock (Kumar Kartikeya Dwivedi) - Implement "jmp" mode for BPF trampoline and corresponding DYNAMIC_FTRACE_WITH_JMP. It improves "fexit" program type performance from 80 M/s to 136 M/s. With Steven's Ack. (Menglong Dong) - Add ability to test non-linear skbs in BPF_PROG_TEST_RUN (Paul Chaignon) - Do not let BPF_PROG_TEST_RUN emit invalid GSO types to stack (Daniel Borkmann) - Generalize buildid reader into bpf_dynptr (Mykyta Yatsenko) - Optimize bpf_map_update_elem() for map-in-map types (Ritesh Oedayrajsingh Varma) - Introduce overwrite mode for BPF ring buffer (Xu Kuohai) * tag 'bpf-next-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (169 commits) bpf: optimize bpf_map_update_elem() for map-in-map types bpf: make kprobe_multi_link_prog_run always_inline selftests/bpf: do not hardcode target rate in test_tc_edt BPF program selftests/bpf: remove test_tc_edt.sh selftests/bpf: integrate test_tc_edt into test_progs selftests/bpf: rename test_tc_edt.bpf.c section to expose program type selftests/bpf: Add success stats to rqspinlock stress test rqspinlock: Precede non-head waiter queueing with AA check rqspinlock: Disable spinning for trylock fallback rqspinlock: Use trylock fallback when per-CPU rqnode is busy rqspinlock: Perform AA checks immediately rqspinlock: Enclose lock/unlock within lock entry acquisitions bpf: Remove runqslower tool selftests/bpf: Remove usage of lsm/file_alloc_security in selftest bpf: Disable file_alloc_security hook bpf: check for insn arrays in check_ptr_alignment bpf: force BPF_F_RDONLY_PROG on insn array creation bpf: Fix exclusive map memory leak selftests/bpf: Make CS length configurable for rqspinlock stress test selftests/bpf: Add lock wait time stats to rqspinlock stress test ... |
||
|
Linus Torvalds
|
b6d993310a |
linux_kselftest-kunit-6.19-rc1
Makes filter parameters configurable via Kconfig. Adds description of kunit.enable parameter documentation. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmkvebAACgkQCwJExA0N Qxw+WQ/9FsRM52lyWrZdJFTJQ5+c/im7xi5h/S9eIpGQ61ZiNtnuGPQbmNtlXVVH EaL3/OQuZic3srx4tTpTOS5iJl3+OLFi9sjIxQ6341OeHjOtvaPm+9i6zCxrgkqM 64EnXi8IKiXnam6kFJGoQbn/Xkhsxh+1jreHgZHfiVPg3gxysp75sxzPQL1Lt1Ml jZxyPQFSqTJnyP2xq+c1qK5jskXkCQiXPQAcPEItEFmsH//ZTUa8rhk8xlW1LQNn Nz5C2I1/HRAHppM2DEcehsxnGOGxNu76x/vjHZ3w8D+tV3AzJtCy+NxVIaS3Xc4K 9egMVTwDOsnX1gx7wqJ8YBAD+2K1MWMFm5R/7guppImZa35oCmqFnrZ+cifgGU8l /1SqEmF/PZ18T+EIjEfnWVDL0dHX3uZTwzx+eMj8pLnIfBnGZC2elqTrg4zhJD2M khIJ8Szc43YOk33tkKrcUmyWcQTjQ0h3UejKLZ8MfSQgTSYPa/W/0gxMKn648a7s JeJ6F2LQ5Fyt1hbzp3arFY8DxVvW3Ks6G9EhNWFhwhNPMjmcCXpKLc4A1Fy8UlXH 4oyZvorKOUqdcHBRP6nIYiuJWwZ0qjb/p7REq50GTk6MnJlbuAlZ/FxP8oFN6fEl va6pCONKRx/m05qZB7EvomhQs1KSSyFodBO9cRpFZyL1FXNgQGQ= =6Rqh -----END PGP SIGNATURE----- Merge tag 'linux_kselftest-kunit-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kunit updates from Shuah Khan: - Make filter parameters configurable via Kconfig - Add description of kunit.enable parameter to documentation * tag 'linux_kselftest-kunit-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: kunit: Make filter parameters configurable via Kconfig Documentation: kunit: add description of kunit.enable parameter |
||
|
Linus Torvalds
|
2488655b2f |
linux_kselftest-next-6.19-rc1
Adds basic test for trace_marker_raw file to tracing selftest. Fixes invalid array access in printf dma_map_benchmark selftest. Adds tprobe enable/disable testcase to tracing selftest. Updates fprobe selftest for ftrace based fprobe. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmkvXJ0ACgkQCwJExA0N QxxLWg/+PjZJry0x3jzyQrYNzxewcjrtH8GwGXgBXJxBGwXZYPv1AubnC3o+Ru6Q AES5s5M3Fm+oMwPc/2VhVbSWLBX4HQthsiShTCZQf7eC0uuxkE/ZCQ4qqs1usT4G l6z+AecIJcflEjX/hwb9ALoKqniwuodrhIl8oNeFgQgB3VQ55Zt3LylxBvJAKACM cqJbDMxSPOqVcRF0xm+A/WFDU5GVmt79+XhxLLg6sZmLCmmjGjE/rtDxgLPZYdE4 NGPghjYlDiAqLJZNUVbxpSKlurq1o36zOKowZO+rlhqOilxaRYoNvrll13u8zIjb Y1AkZeIU9ITzbdXfjWWgMoYOcrevfRygUGZ1R5BEwoGQ9jD0qMCDkaT5cpeBcZ53 1oYcmyP65e2GWDSywVSKuetqtTCXT5xnGpo9TQmm9lNTasB7LwkEXbP9/4FH7BCl f52T14cclZHND3XbDBdaR1ZALj2Qb5CFfuWAG2pZCNdt/jrxyEqU2RdLG95S1yDz 8diKhtflxOq627V5VtOj9VgS3AGj9pkVSSmWiyS0KjdV/v7vZWUbYhFPrJntoTiY GLAwkdGiIS6edDqQ7lqgpr8/NLxtsZwzYYIwxul+DJybAyJSt7Q3YFe9vSdDPHlf rgj1VeW+byotE3A+92nL17Yy0MhjUVS/M31EyzFupChwxScDhhE= =NOnZ -----END PGP SIGNATURE----- Merge tag 'linux_kselftest-next-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest updates from Shuah Khan: - Add basic test for trace_marker_raw file to tracing selftest - Fix invalid array access in printf dma_map_benchmark selftest - Add tprobe enable/disable testcase to tracing selftest - Update fprobe selftest for ftrace based fprobe * tag 'linux_kselftest-next-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: tracing: Update fprobe selftest for ftrace based fprobe selftests: tracing: Add tprobe enable/disable testcase selftests/run_kselftest.sh: exit with error if tests fail selftests/dma: fix invalid array access in printf selftests/tracing: Add basic test for trace_marker_raw file |
||
|
Linus Torvalds
|
2ddcf4962c |
Kbuild updates for v6.19
- Enable -fms-extensions, allowing anonymous use of tagged struct or
union in struct/union (tag kbuild-ms-extensions-6.19). An exemplary
conversion patch is added here, too (btrfs).
- Introduce architecture-specific CC_CAN_LINK and flags for userprogs
- Add new packaging target 'modules-cpio-pkg' for building a initramfs
cpio w/ kmods
- Handle included .c files in gen_compile_commands
- Minor kbuild changes:
- Use objtree for module signing key path, fixing oot kmod signing
- Improve documentation of KBUILD_BUILD_TIMESTAMP
- Reuse KBUILD_USERCFLAGS for UAPI, instead of defining twice
- Rename scripts/Makefile.extrawarn to Makefile.warn
- Drop obsolete types.h check from headers_check.pl
- Remove outdated config leak ignore entries
Signed-off-by: Nicolas Schier <nsc@kernel.org>
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Merge tag 'kbuild-6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux
Pull Kbuild updates from Nicolas Schier:
- Enable -fms-extensions, allowing anonymous use of tagged struct or
union in struct/union (tag kbuild-ms-extensions-6.19). An exemplary
conversion patch is added here, too (btrfs).
[ Editor's note: the core of this actually came in early through a
shared branch and a few other trees - Linus ]
- Introduce architecture-specific CC_CAN_LINK and flags for userprogs
- Add new packaging target 'modules-cpio-pkg' for building a initramfs
cpio w/ kmods
- Handle included .c files in gen_compile_commands
- Minor kbuild changes:
- Use objtree for module signing key path, fixing oot kmod signing
- Improve documentation of KBUILD_BUILD_TIMESTAMP
- Reuse KBUILD_USERCFLAGS for UAPI, instead of defining twice
- Rename scripts/Makefile.extrawarn to Makefile.warn
- Drop obsolete types.h check from headers_check.pl
- Remove outdated config leak ignore entries
* tag 'kbuild-6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux:
kbuild: add target to build a cpio containing modules
initramfs: add gen_init_cpio to hostprogs unconditionally
kbuild: allow architectures to override CC_CAN_LINK
init: deduplicate cc-can-link.sh invocations
kbuild: don't enable CC_CAN_LINK if the dummy program generates warnings
scripts: headers_install.sh: Remove two outdated config leak ignore entries
scripts/clang-tools: Handle included .c files in gen_compile_commands
kbuild: uapi: Drop types.h check from headers_check.pl
kbuild: Rename Makefile.extrawarn to Makefile.warn
MAINTAINERS, .mailmap: Update mail address for Nicolas Schier
kbuild: uapi: reuse KBUILD_USERCFLAGS
kbuild: doc: improve KBUILD_BUILD_TIMESTAMP documentation
kbuild: Use objtree for module signing key path
btrfs: send: make use of -fms-extensions for defining struct fs_path
|
||
|
Linus Torvalds
|
784faa8eca |
Rust changes for v6.19
Toolchain and infrastructure:
- Add support for 'syn'.
Syn is a parsing library for parsing a stream of Rust tokens into a
syntax tree of Rust source code.
Currently this library is geared toward use in Rust procedural
macros, but contains some APIs that may be useful more generally.
'syn' allows us to greatly simplify writing complex macros such as
'pin-init' (Benno has already prepared the 'syn'-based version). We
will use it in the 'macros' crate too.
'syn' is the most downloaded Rust crate (according to crates.io), and
it is also used by the Rust compiler itself. While the amount of code
is substantial, there should not be many updates needed for these
crates, and even if there are, they should not be too big, e.g. +7k
-3k lines across the 3 crates in the last year.
'syn' requires two smaller dependencies: 'quote' and 'proc-macro2'.
I only modified their code to remove a third dependency
('unicode-ident') and to add the SPDX identifiers. The code can be
easily verified to exactly match upstream with the provided scripts.
They are all licensed under "Apache-2.0 OR MIT", like the other
vendored 'alloc' crate we had for a while.
Please see the merge commit with the cover letter for more context.
- Allow 'unreachable_pub' and 'clippy::disallowed_names' for doctests.
Examples (i.e. doctests) may want to do things like show public items
and use names such as 'foo'.
Nevertheless, we still try to keep examples as close to real code as
possible (this is part of why running Clippy on doctests is important
for us, e.g. for safety comments, which userspace Rust does not
support yet but we are stricter).
'kernel' crate:
- Replace our custom 'CStr' type with 'core::ffi::CStr'.
Using the standard library type reduces our custom code footprint,
and we retain needed custom functionality through an extension trait
and a new 'fmt!' macro which replaces the previous 'core' import.
This started in 6.17 and continued in 6.18, and we finally land the
replacement now. This required quite some stamina from Tamir, who
split the changes in steps to prepare for the flag day change here.
- Replace 'kernel::c_str!' with C string literals.
C string literals were added in Rust 1.77, which produce '&CStr's
(the 'core' one), so now we can write:
c"hi"
instead of:
c_str!("hi")
- Add 'num' module for numerical features.
It includes the 'Integer' trait, implemented for all primitive
integer types.
It also includes the 'Bounded' integer wrapping type: an integer
value that requires only the 'N' less significant bits of the wrapped
type to be encoded:
// An unsigned 8-bit integer, of which only the 4 LSBs are used.
let v = Bounded::<u8, 4>:🆕:<15>();
assert_eq!(v.get(), 15);
'Bounded' is useful to e.g. enforce guarantees when working with
bitfields that have an arbitrary number of bits.
Values can be constructed from simple non-constant expressions or,
for more complex ones, validated at runtime.
'Bounded' also comes with comparison and arithmetic operations (with
both their backing type and other 'Bounded's with a compatible
backing type), casts to change the backing type, extending/shrinking
and infallible/fallible conversions from/to primitives as applicable.
- 'rbtree' module: add immutable cursor ('Cursor').
It enables to use just an immutable tree reference where appropriate.
The existing fully-featured mutable cursor is renamed to 'CursorMut'.
kallsyms:
- Fix wrong "big" kernel symbol type read from procfs.
'pin-init' crate:
- A couple minor fixes (Benno asked me to pick these patches up for
him this cycle).
Documentation:
- Quick Start guide: add Debian 13 (Trixie).
Debian Stable is now able to build Linux, since Debian 13 (released
2025-08-09) packages Rust 1.85.0, which is recent enough.
We are planning to propose that the minimum supported Rust version in
Linux follows Debian Stable releases, with Debian 13 being the first
one we upgrade to, i.e. Rust 1.85.
MAINTAINERS:
- Add entry for the new 'num' module.
- Remove Alex as Rust maintainer: he hasn't had the time to contribute
for a few years now, so it is a no-op change in practice.
And a few other cleanups and improvements.
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Merge tag 'rust-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux
Pull Rust updates from Miguel Ojeda:
"Toolchain and infrastructure:
- Add support for 'syn'.
Syn is a parsing library for parsing a stream of Rust tokens into a
syntax tree of Rust source code.
Currently this library is geared toward use in Rust procedural
macros, but contains some APIs that may be useful more generally.
'syn' allows us to greatly simplify writing complex macros such as
'pin-init' (Benno has already prepared the 'syn'-based version). We
will use it in the 'macros' crate too.
'syn' is the most downloaded Rust crate (according to crates.io),
and it is also used by the Rust compiler itself. While the amount
of code is substantial, there should not be many updates needed for
these crates, and even if there are, they should not be too big,
e.g. +7k -3k lines across the 3 crates in the last year.
'syn' requires two smaller dependencies: 'quote' and 'proc-macro2'.
I only modified their code to remove a third dependency
('unicode-ident') and to add the SPDX identifiers. The code can be
easily verified to exactly match upstream with the provided
scripts.
They are all licensed under "Apache-2.0 OR MIT", like the other
vendored 'alloc' crate we had for a while.
Please see the merge commit with the cover letter for more context.
- Allow 'unreachable_pub' and 'clippy::disallowed_names' for
doctests.
Examples (i.e. doctests) may want to do things like show public
items and use names such as 'foo'.
Nevertheless, we still try to keep examples as close to real code
as possible (this is part of why running Clippy on doctests is
important for us, e.g. for safety comments, which userspace Rust
does not support yet but we are stricter).
'kernel' crate:
- Replace our custom 'CStr' type with 'core::ffi::CStr'.
Using the standard library type reduces our custom code footprint,
and we retain needed custom functionality through an extension
trait and a new 'fmt!' macro which replaces the previous 'core'
import.
This started in 6.17 and continued in 6.18, and we finally land the
replacement now. This required quite some stamina from Tamir, who
split the changes in steps to prepare for the flag day change here.
- Replace 'kernel::c_str!' with C string literals.
C string literals were added in Rust 1.77, which produce '&CStr's
(the 'core' one), so now we can write:
c"hi"
instead of:
c_str!("hi")
- Add 'num' module for numerical features.
It includes the 'Integer' trait, implemented for all primitive
integer types.
It also includes the 'Bounded' integer wrapping type: an integer
value that requires only the 'N' least significant bits of the
wrapped type to be encoded:
// An unsigned 8-bit integer, of which only the 4 LSBs are used.
let v = Bounded::<u8, 4>:🆕:<15>();
assert_eq!(v.get(), 15);
'Bounded' is useful to e.g. enforce guarantees when working with
bitfields that have an arbitrary number of bits.
Values can also be constructed from simple non-constant expressions
or, for more complex ones, validated at runtime.
'Bounded' also comes with comparison and arithmetic operations
(with both their backing type and other 'Bounded's with a
compatible backing type), casts to change the backing type,
extending/shrinking and infallible/fallible conversions from/to
primitives as applicable.
- 'rbtree' module: add immutable cursor ('Cursor').
It enables to use just an immutable tree reference where
appropriate. The existing fully-featured mutable cursor is renamed
to 'CursorMut'.
kallsyms:
- Fix wrong "big" kernel symbol type read from procfs.
'pin-init' crate:
- A couple minor fixes (Benno asked me to pick these patches up for
him this cycle).
Documentation:
- Quick Start guide: add Debian 13 (Trixie).
Debian Stable is now able to build Linux, since Debian 13 (released
2025-08-09) packages Rust 1.85.0, which is recent enough.
We are planning to propose that the minimum supported Rust version
in Linux follows Debian Stable releases, with Debian 13 being the
first one we upgrade to, i.e. Rust 1.85.
MAINTAINERS:
- Add entry for the new 'num' module.
- Remove Alex as Rust maintainer: he hasn't had the time to
contribute for a few years now, so it is a no-op change in
practice.
And a few other cleanups and improvements"
* tag 'rust-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: (53 commits)
rust: macros: support `proc-macro2`, `quote` and `syn`
rust: syn: enable support in kbuild
rust: syn: add `README.md`
rust: syn: remove `unicode-ident` dependency
rust: syn: add SPDX License Identifiers
rust: syn: import crate
rust: quote: enable support in kbuild
rust: quote: add `README.md`
rust: quote: add SPDX License Identifiers
rust: quote: import crate
rust: proc-macro2: enable support in kbuild
rust: proc-macro2: add `README.md`
rust: proc-macro2: remove `unicode_ident` dependency
rust: proc-macro2: add SPDX License Identifiers
rust: proc-macro2: import crate
rust: kbuild: support using libraries in `rustc_procmacro`
rust: kbuild: support skipping flags in `rustc_test_library`
rust: kbuild: add proc macro library support
rust: kbuild: simplify `--cfg` handling
rust: kbuild: introduce `core-flags` and `core-skip_flags`
...
|
||
|
Linus Torvalds
|
51ab33fc0a |
livepatching changes for 6.19
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||
|
Linus Torvalds
|
02baaa67d9 |
sched_ext: Changes for v6.19
- Improve recovery from misbehaving BPF schedulers. When a scheduler puts many tasks with varying affinity restrictions on a shared DSQ, CPUs scanning through tasks they cannot run can overwhelm the system, causing lockups. Bypass mode now uses per-CPU DSQs with a load balancer to avoid this, and hooks into the hardlockup detector to attempt recovery. Add scx_cpu0 example scheduler to demonstrate this scenario. - Add lockless peek operation for DSQs to reduce lock contention for schedulers that need to query queue state during load balancing. - Allow scx_bpf_reenqueue_local() to be called from anywhere in preparation for deprecating cpu_acquire/release() callbacks in favor of generic BPF hooks. - Prepare for hierarchical scheduler support: add scx_bpf_task_set_slice() and scx_bpf_task_set_dsq_vtime() kfuncs, make scx_bpf_dsq_insert*() return bool, and wrap kfunc args in structs for future aux__prog parameter. - Implement cgroup_set_idle() callback to notify BPF schedulers when a cgroup's idle state changes. - Fix migration tasks being incorrectly downgraded from stop_sched_class to rt_sched_class across sched_ext enable/disable. Applied late as the fix is low risk and the bug subtle but needs stable backporting. - Various fixes and cleanups including cgroup exit ordering, SCX_KICK_WAIT reliability, and backward compatibility improvements. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCaS4h1A4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGe/MAP9EZ0pLiTpmMtt6mI/11Fmi+aWfL84j1zt13cz9 W4vb4gEA9eVEH6n9xyC4nhcOk9AQwSDuCWMOzLsnhW8TbEHVTww= =8W/B -----END PGP SIGNATURE----- Merge tag 'sched_ext-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext Pull sched_ext updates from Tejun Heo: - Improve recovery from misbehaving BPF schedulers. When a scheduler puts many tasks with varying affinity restrictions on a shared DSQ, CPUs scanning through tasks they cannot run can overwhelm the system, causing lockups. Bypass mode now uses per-CPU DSQs with a load balancer to avoid this, and hooks into the hardlockup detector to attempt recovery. Add scx_cpu0 example scheduler to demonstrate this scenario. - Add lockless peek operation for DSQs to reduce lock contention for schedulers that need to query queue state during load balancing. - Allow scx_bpf_reenqueue_local() to be called from anywhere in preparation for deprecating cpu_acquire/release() callbacks in favor of generic BPF hooks. - Prepare for hierarchical scheduler support: add scx_bpf_task_set_slice() and scx_bpf_task_set_dsq_vtime() kfuncs, make scx_bpf_dsq_insert*() return bool, and wrap kfunc args in structs for future aux__prog parameter. - Implement cgroup_set_idle() callback to notify BPF schedulers when a cgroup's idle state changes. - Fix migration tasks being incorrectly downgraded from stop_sched_class to rt_sched_class across sched_ext enable/disable. Applied late as the fix is low risk and the bug subtle but needs stable backporting. - Various fixes and cleanups including cgroup exit ordering, SCX_KICK_WAIT reliability, and backward compatibility improvements. * tag 'sched_ext-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: (44 commits) sched_ext: Fix incorrect sched_class settings for per-cpu migration tasks sched_ext: tools: Removing duplicate targets during non-cross compilation sched_ext: Use kvfree_rcu() to release per-cpu ksyncs object sched_ext: Pass locked CPU parameter to scx_hardlockup() and add docs sched_ext: Update comments replacing breather with aborting mechanism sched_ext: Implement load balancer for bypass mode sched_ext: Factor out abbreviated dispatch dequeue into dispatch_dequeue_locked() sched_ext: Factor out scx_dsq_list_node cursor initialization into INIT_DSQ_LIST_CURSOR sched_ext: Add scx_cpu0 example scheduler sched_ext: Hook up hardlockup detector sched_ext: Make handle_lockup() propagate scx_verror() result sched_ext: Refactor lockup handlers into handle_lockup() sched_ext: Make scx_exit() and scx_vexit() return bool sched_ext: Exit dispatch and move operations immediately when aborting sched_ext: Simplify breather mechanism with scx_aborting flag sched_ext: Use per-CPU DSQs instead of per-node global DSQs in bypass mode sched_ext: Refactor do_enqueue_task() local and global DSQ paths sched_ext: Use shorter slice in bypass mode sched_ext: Mark racy bitfields to prevent adding fields that can't tolerate races sched_ext: Minor cleanups to scx_task_iter ... |
||
|
Linus Torvalds
|
8449d3252c |
cgroup: Changes for v6.19
- Defer task cgroup unlink until after the dying task's final context switch so that controllers see the cgroup properly populated until the task is truly gone. - cpuset cleanups and simplifications. Enforce that domain isolated CPUs stay in root or isolated partitions and fail if isolated+nohz_full would leave no housekeeping CPU. Fix sched/deadline root domain handling during CPU hot-unplug and race for tasks in attaching cpusets. - Misc fixes including memory reclaim protection documentation and selftest KTAP conformance. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCaS3pEQ4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGYbrAP9H0kVyWH5tK9VhjSZyqidic8NuvtmNOyhIRrg0 8S8K0wD/YG9xlh2JUyRmS4B23ggc59+9y5xM2/sctrho51Pvsgg= =0MB+ -----END PGP SIGNATURE----- Merge tag 'cgroup-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup updates from Tejun Heo: - Defer task cgroup unlink until after the dying task's final context switch so that controllers see the cgroup properly populated until the task is truly gone - cpuset cleanups and simplifications. Enforce that domain isolated CPUs stay in root or isolated partitions and fail if isolated+nohz_full would leave no housekeeping CPU. Fix sched/deadline root domain handling during CPU hot-unplug and race for tasks in attaching cpusets - Misc fixes including memory reclaim protection documentation and selftest KTAP conformance * tag 'cgroup-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (21 commits) cpuset: Treat cpusets in attaching as populated sched/deadline: Walk up cpuset hierarchy to decide root domain when hot-unplug cgroup/cpuset: Introduce cpuset_cpus_allowed_locked() docs: cgroup: No special handling of unpopulated memcgs docs: cgroup: Note about sibling relative reclaim protection docs: cgroup: Explain reclaim protection target selftests/cgroup: conform test to KTAP format output cpuset: remove need_rebuild_sched_domains cpuset: remove global remote_children list cpuset: simplify node setting on error cgroup: include missing header for struct irq_work cgroup: Fix sleeping from invalid context warning on PREEMPT_RT cgroup/cpuset: Globally track isolated_cpus update cgroup/cpuset: Ensure domain isolated CPUs stay in root or isolated partition cgroup/cpuset: Move up prstate_housekeeping_conflict() helper cgroup/cpuset: Fail if isolated and nohz_full don't leave any housekeeping cgroup/cpuset: Rename update_unbound_workqueue_cpumask() to update_isolation_cpumasks() cgroup: Defer task cgroup unlink until after the task is done switching out cgroup: Move dying_tasks cleanup from cgroup_task_release() to cgroup_task_free() cgroup: Rename cgroup lifecycle hooks to cgroup_task_*() ... |
||
|
Linus Torvalds
|
2b60145734 |
workqueue: Changes for v6.19
- Rescuer affinity management: Affinity now updated only when detached using wq_unbound_cpumask consistently. DISASSOCIATED workers also follow unbound cpumask changes to avoid breaking CPU isolation. - Rescuer cleanups preparing for fetching work items one by one from pool list: Work assignment factored out, optimized to skip pwqs no longer needing rescue, and shutdown logic simplified. - Unused assert_rcu_or_wq_mutex_or_pool_mutex() removed. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCaS3kYg4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGWkwAQC6zcYAbGTcEkfiDsg3GM6dCsHDk3hIXVguE7Em mOpnVQD/QxiYHZxt/SOY5LIIX9ZvTpBYeuW7MR5bCncSBdCLTw4= =VkvX -----END PGP SIGNATURE----- Merge tag 'wq-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq Pull workqueue updates from Tejun Heo: - Rescuer affinity management: Affinity is now updated only when detached using wq_unbound_cpumask consistently. DISASSOCIATED workers also follow unbound cpumask changes to avoid breaking CPU isolation - Rescuer cleanups preparing for fetching work items one by one from pool list: Work assignment factored out, optimized to skip pwqs no longer needing rescue, and shutdown logic simplified - Unused assert_rcu_or_wq_mutex_or_pool_mutex() removed * tag 'wq-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: Don't rely on wq->rescuer to stop rescuer workqueue: Only assign rescuer work when really needed workqueue: Factor out assign_rescuer_work() workqueue: Init rescuer's affinities as wq_unbound_cpumask workqueue: Let DISASSOCIATED workers follow unbound wq cpumask changes workqueue: Update the rescuer's affinity only when it is detached workqueue: Remove unused assert_rcu_or_wq_mutex_or_pool_mutex |
||
|
Linus Torvalds
|
4d38b88fd1 |
printk changes for 6.19
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Merge tag 'printk-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
Pull printk updates from Petr Mladek:
- Allow creaing nbcon console drivers with an unsafe write_atomic()
callback that can only be called by the final nbcon_atomic_flush_unsafe().
Otherwise, the driver would rely on the kthread.
It is going to be used as the-best-effort approach for an
experimental nbcon netconsole driver, see
https://lore.kernel.org/r/20251121-nbcon-v1-2-503d17b2b4af@debian.org
Note that a safe .write_atomic() callback is supposed to work in NMI
context. But some networking drivers are not safe even in IRQ
context:
https://lore.kernel.org/r/oc46gdpmmlly5o44obvmoatfqo5bhpgv7pabpvb6sjuqioymcg@gjsma3ghoz35
In an ideal world, all networking drivers would be fixed first and
the atomic flush would be blocked only in NMI context. But it brings
the question how reliable networking drivers are when the system is
in a bad state. They might block flushing more reliable serial
consoles which are more suitable for serious debugging anyway.
- Allow to use the last 4 bytes of the printk ring buffer.
- Prevent queuing IRQ work and block printk kthreads when consoles are
suspended. Otherwise, they create non-necessary churn or even block
the suspend.
- Release console_lock() between each record in the kthread used for
legacy consoles on RT. It might significantly speed up the boot.
- Release nbcon context between each record in the atomic flush. It
prevents stalls of the related printk kthread after it has lost the
ownership in the middle of a record
- Add support for NBCON consoles into KDB
- Add %ptsP modifier for printing struct timespec64 and use it where
possible
- Misc code clean up
* tag 'printk-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: (48 commits)
printk: Use console_is_usable on console_unblank
arch: um: kmsg_dump: Use console_is_usable
drivers: serial: kgdboc: Drop checks for CON_ENABLED and CON_BOOT
lib/vsprintf: Unify FORMAT_STATE_NUM handlers
printk: Avoid irq_work for printk_deferred() on suspend
printk: Avoid scheduling irq_work on suspend
printk: Allow printk_trigger_flush() to flush all types
tracing: Switch to use %ptSp
scsi: snic: Switch to use %ptSp
scsi: fnic: Switch to use %ptSp
s390/dasd: Switch to use %ptSp
ptp: ocp: Switch to use %ptSp
pps: Switch to use %ptSp
PCI: epf-test: Switch to use %ptSp
net: dsa: sja1105: Switch to use %ptSp
mmc: mmc_test: Switch to use %ptSp
media: av7110: Switch to use %ptSp
ipmi: Switch to use %ptSp
igb: Switch to use %ptSp
e1000e: Switch to use %ptSp
...
|
||
|
Linus Torvalds
|
4a4e019937 |
lkmm: Update documentation
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||
|
Linus Torvalds
|
98e7dcbb82 |
RCU pull request for v6.19
SRCU
----
_ Properly handle SRCU readers within IRQ disabled sections in tiny SRCU
- Preparation to reimplement RCU Tasks Trace on top of SRCU fast:
- Introduce API to expedite a grace period and test it through
rcutorture.
- Split srcu-fast in two flavours: SRCU-fast and SRCU-fast-updown.
Both are still targeted toward faster readers (without full
barriers on LOCK and UNLOCK) at the expense of heavier write side
(using full RCU grace period ordering instead of simply full
ordering) as compared to "traditional" non-fast SRCU. But those
srcu-fast flavours are going to be optimized in two different
ways:
- SRCU-fast will become the reimplementation basis for
RCU-TASK-TRACE for consolidation. Since RCU-TASK-TRACE must
be NMI safe, SRCU-fast must be as well.
- SRCU-fast-updown will be needed for uretprobes code in order
to get rid of the read-side memory barriers while still
allowing entering the reader at task level while exiting it
in a timer handler. It is considered semaphore-like in that
it can have different owners between LOCK and UNLOCK.
However it is not NMI-safe.
The actual optimizations are work in progress for the next cycle.
Only the new interfaces are added for now, along with related
torture and scalability test code.
- Create/document/debug/torture new proper initializers for RCU fast:
DEFINE_SRCU_FAST() and init_srcu_struct_fast()
This allows for using right away the proper ordering on the write
side (either full ordering or full RCU grace period ordering) without
waiting for the read side to tell which to use. Also this optimizes
the read side altogether with moving flavour debug checks under debug
config and with removing a costly RmW operation on their first call.
- Make some diagnostic functions tracing safe.
REFSCALE
-------
Add performance testing for common context synchronizations
(Preemption, IRQ, Softirq) and per-cpu increments. Those are
relevant comparisons against SRCU-fast read side APIs, especially
as they are planned to synchronize further tracing fast-path code.
MISCELLANOUS
------
- In order to prepare the layout for nohz_full work deferral to
user exit, the context tracking state must shrink the counter
of transitions to/from RCU not watching. The only possible hazard
is to trigger wrap-around more easily, delaying a bit grace periods
when that happens. This should be a rare event though. Yet add
debugging and torture code to test that assumption.
- Fix memory leak on locktorture module
- Annotate accesses in rculist_nulls.h to prevent from KCSAN warnings.
On recent discussions, we also concluded that all those WRITE_ONCE()
and READ_ONCE() on list APIs deserve appropriate comments. Something
to be expected for the next cycle.
- Provide a script to apply several configs to several commits with torture.
- Allow torture to reuse a build directory in order to save needless
rebuild time.
- Various cleanups.
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Merge tag 'rcu.release.v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
Pull RCU updates from Frederic Weisbecker:
"SRCU:
- Properly handle SRCU readers within IRQ disabled sections in tiny
SRCU
- Preparation to reimplement RCU Tasks Trace on top of SRCU fast:
- Introduce API to expedite a grace period and test it through
rcutorture
- Split srcu-fast in two flavours: SRCU-fast and SRCU-fast-updown.
Both are still targeted toward faster readers (without full
barriers on LOCK and UNLOCK) at the expense of heavier write
side (using full RCU grace period ordering instead of simply
full ordering) as compared to "traditional" non-fast SRCU. But
those srcu-fast flavours are going to be optimized in two
different ways:
- SRCU-fast will become the reimplementation basis for
RCU-TASK-TRACE for consolidation. Since RCU-TASK-TRACE must
be NMI safe, SRCU-fast must be as well.
- SRCU-fast-updown will be needed for uretprobes code in order
to get rid of the read-side memory barriers while still
allowing entering the reader at task level while exiting it
in a timer handler. It is considered semaphore-like in that
it can have different owners between LOCK and UNLOCK.
However it is not NMI-safe.
The actual optimizations are work in progress for the next
cycle. Only the new interfaces are added for now, along with
related torture and scalability test code.
- Create/document/debug/torture new proper initializers for RCU fast:
DEFINE_SRCU_FAST() and init_srcu_struct_fast()
This allows for using right away the proper ordering on the write
side (either full ordering or full RCU grace period ordering)
without waiting for the read side to tell which to use.
This also optimizes the read side altogether with moving flavour
debug checks under debug config and with removing a costly RmW
operation on their first call.
- Make some diagnostic functions tracing safe
Refscale:
- Add performance testing for common context synchronizations
(Preemption, IRQ, Softirq) and per-cpu increments. Those are
relevant comparisons against SRCU-fast read side APIs, especially
as they are planned to synchronize further tracing fast-path code
Miscellanous:
- In order to prepare the layout for nohz_full work deferral to user
exit, the context tracking state must shrink the counter of
transitions to/from RCU not watching. The only possible hazard is
to trigger wrap-around more easily, delaying a bit grace periods
when that happens. This should be a rare event though. Yet add
debugging and torture code to test that assumption
- Fix memory leak on locktorture module
- Annotate accesses in rculist_nulls.h to prevent from KCSAN
warnings. On recent discussions, we also concluded that all those
WRITE_ONCE() and READ_ONCE() on list APIs deserve appropriate
comments. Something to be expected for the next cycle
- Provide a script to apply several configs to several commits with
torture
- Allow torture to reuse a build directory in order to save needless
rebuild time
- Various cleanups"
* tag 'rcu.release.v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (29 commits)
refscale: Add SRCU-fast-updown readers
refscale: Exercise DEFINE_STATIC_SRCU_FAST() and init_srcu_struct_fast()
rcutorture: Make srcu{,d}_torture_init() announce the SRCU type
srcu: Create an SRCU-fast-updown API
refscale: Do not disable interrupts for tests involving local_bh_enable()
refscale: Add non-atomic per-CPU increment readers
refscale: Add this_cpu_inc() readers
refscale: Add preempt_disable() readers
refscale: Add local_bh_disable() readers
refscale: Add local_irq_disable() and local_irq_save() readers
torture: Permit negative kvm.sh --kconfig numberic arguments
srcu: Add SRCU_READ_FLAVOR_FAST_UPDOWN CPP macro
rcu: Mark diagnostic functions as notrace
rcutorture: Make TREE04 use CONFIG_RCU_DYNTICKS_TORTURE
rcutorture: Remove redundant rcutorture_one_extend() from rcu_torture_one_read()
rcutorture: Permit kvm-again.sh to re-use the build directory
torture: Add kvm-series.sh to test commit/scenario combination
rcu: use WRITE_ONCE() for ->next and ->pprev of hlist_nulls
locktorture: Fix memory leak in param_set_cpumask()
doc: Update for SRCU-fast definitions and initialization
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Linus Torvalds
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b687034b1a |
slab updates for 6.19
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Merge tag 'slab-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab updates from Vlastimil Babka:
- mempool_alloc_bulk() support for upcoming users in the block layer
that need to allocate multiple objects at once with the mempool's
guaranteed progress semantics, which is not achievable with an
allocation single objects in a loop. Along with refactoring and
various improvements (Christoph Hellwig)
- Preparations for the upcoming separation of struct slab from struct
page, mostly by removing the struct folio layer, as the purpose of
struct folio has shifted since it became used in slab code (Matthew
Wilcox)
- Modernisation of slab's boot param API usage, which removes some
unexpected parsing corner cases (Petr Tesarik)
- Refactoring of freelist_aba_t (now struct freelist_counters) and
associated functions for double cmpxchg, enabled by -fms-extensions
(Vlastimil Babka)
- Cleanups and improvements related to sheaves caching layer, that were
part of the full conversion to sheaves, which is planned for the next
release (Vlastimil Babka)
* tag 'slab-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab: (42 commits)
slab: Remove unnecessary call to compound_head() in alloc_from_pcs()
mempool: clarify behavior of mempool_alloc_preallocated()
mempool: drop the file name in the top of file comment
mempool: de-typedef
mempool: remove mempool_{init,create}_kvmalloc_pool
mempool: legitimize the io_schedule_timeout in mempool_alloc_from_pool
mempool: add mempool_{alloc,free}_bulk
mempool: factor out a mempool_alloc_from_pool helper
slab: Remove references to folios from virt_to_slab()
kasan: Remove references to folio in __kasan_mempool_poison_object()
memcg: Convert mem_cgroup_from_obj_folio() to mem_cgroup_from_obj_slab()
mempool: factor out a mempool_adjust_gfp helper
mempool: add error injection support
mempool: improve kerneldoc comments
mm: improve kerneldoc comments for __alloc_pages_bulk
fault-inject: make enum fault_flags available unconditionally
usercopy: Remove folio references from check_heap_object()
slab: Remove folio references from kfree_nolock()
slab: Remove folio references from kfree_rcu_sheaf()
slab: Remove folio references from build_detached_freelist()
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