Since we don't really use req->task_work anymore, get rid of it together
with the nasty ->func aliasing between ->io_task_work and ->task_work,
and hide ->fallback_node inside of io_task_work.
Also, as task_work is gone now, replace the callback type from
task_work_func_t to a function taking io_kiocb to avoid casting and
simplify code.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
When task_work_add() fails, we use ->exit_task_work to queue the work.
That will be run only in the cancellation path, which happens either
when the ctx is dying or one of tasks with inflight requests is exiting
or executing. There is a good chance that such a request would just get
stuck in the list potentially hodling a file, all io_uring rsrc
recycling or some other resources. Nothing terrible, it'll go away at
some point, but we don't want to lock them up for longer than needed.
Replace that hand made ->exit_task_work with delayed_work + llist
inspired by fput_many().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Merge tag 'fs_for_v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull misc fs updates from Jan Kara:
"The new quotactl_fd() syscall (remake of quotactl_path() syscall that
got introduced & disabled in 5.13 cycle), and couple of udf, reiserfs,
isofs, and writeback fixes and cleanups"
* tag 'fs_for_v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
writeback: fix obtain a reference to a freeing memcg css
quota: remove unnecessary oom message
isofs: remove redundant continue statement
quota: Wire up quotactl_fd syscall
quota: Change quotactl_path() systcall to an fd-based one
reiserfs: Remove unneed check in reiserfs_write_full_page()
udf: Fix NULL pointer dereference in udf_symlink function
reiserfs: add check for invalid 1st journal block
ext4 in 5.14:
- Allow applications to poll on changes to /sys/fs/ext4/*/errors_count
- Add the ioctl EXT4_IOC_CHECKPOINT which allows the journal to be
checkpointed, truncated and discarded or zero'ed.
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"In addition to bug fixes and cleanups, there are two new features for
ext4 in 5.14:
- Allow applications to poll on changes to
/sys/fs/ext4/*/errors_count
- Add the ioctl EXT4_IOC_CHECKPOINT which allows the journal to be
checkpointed, truncated and discarded or zero'ed"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (32 commits)
jbd2: export jbd2_journal_[un]register_shrinker()
ext4: notify sysfs on errors_count value change
fs: remove bdev_try_to_free_page callback
ext4: remove bdev_try_to_free_page() callback
jbd2: simplify journal_clean_one_cp_list()
jbd2,ext4: add a shrinker to release checkpointed buffers
jbd2: remove redundant buffer io error checks
jbd2: don't abort the journal when freeing buffers
jbd2: ensure abort the journal if detect IO error when writing original buffer back
jbd2: remove the out label in __jbd2_journal_remove_checkpoint()
ext4: no need to verify new add extent block
jbd2: clean up misleading comments for jbd2_fc_release_bufs
ext4: add check to prevent attempting to resize an fs with sparse_super2
ext4: consolidate checks for resize of bigalloc into ext4_resize_begin
ext4: remove duplicate definition of ext4_xattr_ibody_inline_set()
ext4: fsmap: fix the block/inode bitmap comment
ext4: fix comment for s_hash_unsigned
ext4: use local variable ei instead of EXT4_I() macro
ext4: fix avefreec in find_group_orlov
ext4: correct the cache_nr in tracepoint ext4_es_shrink_exit
...
benefit both the DM thinp and cache targets.
- A few small DM kcopyd efficiency improvements.
- Significant zoned related block core, DM core and DM zoned target
changes that culminate with adding zoned append emulation (which is
required to properly fix DM crypt's zoned support).
- Various DM writecache target changes that improve efficiency. Adds
an optional "metadata_only" feature that only promotes bios flagged
with REQ_META. But the most significant improvement is writecache's
ability to pause writeback, for a confiurable time, if/when the
working set is larger than the cache (and the cache is full) -- this
ensures performance is no worse than the slower origin device.
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Merge tag 'for-5.14/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mike Snitzer:
- Various DM persistent-data library improvements and fixes that
benefit both the DM thinp and cache targets.
- A few small DM kcopyd efficiency improvements.
- Significant zoned related block core, DM core and DM zoned target
changes that culminate with adding zoned append emulation (which is
required to properly fix DM crypt's zoned support).
- Various DM writecache target changes that improve efficiency. Adds an
optional "metadata_only" feature that only promotes bios flagged with
REQ_META. But the most significant improvement is writecache's
ability to pause writeback, for a confiurable time, if/when the
working set is larger than the cache (and the cache is full) -- this
ensures performance is no worse than the slower origin device.
* tag 'for-5.14/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (35 commits)
dm writecache: make writeback pause configurable
dm writecache: pause writeback if cache full and origin being written directly
dm io tracker: factor out IO tracker
dm btree remove: assign new_root only when removal succeeds
dm zone: fix dm_revalidate_zones() memory allocation
dm ps io affinity: remove redundant continue statement
dm writecache: add optional "metadata_only" parameter
dm writecache: add "cleaner" and "max_age" to Documentation
dm writecache: write at least 4k when committing
dm writecache: flush origin device when writing and cache is full
dm writecache: have ssd writeback wait if the kcopyd workqueue is busy
dm writecache: use list_move instead of list_del/list_add in writecache_writeback()
dm writecache: commit just one block, not a full page
dm writecache: remove unused gfp_t argument from wc_add_block()
dm crypt: Fix zoned block device support
dm: introduce zone append emulation
dm: rearrange core declarations for extended use from dm-zone.c
block: introduce BIO_ZONE_WRITE_LOCKED bio flag
block: introduce bio zone helpers
block: improve handling of all zones reset operation
...
Core:
- BPF:
- add syscall program type and libbpf support for generating
instructions and bindings for in-kernel BPF loaders (BPF loaders
for BPF), this is a stepping stone for signed BPF programs
- infrastructure to migrate TCP child sockets from one listener
to another in the same reuseport group/map to improve flexibility
of service hand-off/restart
- add broadcast support to XDP redirect
- allow bypass of the lockless qdisc to improving performance
(for pktgen: +23% with one thread, +44% with 2 threads)
- add a simpler version of "DO_ONCE()" which does not require
jump labels, intended for slow-path usage
- virtio/vsock: introduce SOCK_SEQPACKET support
- add getsocketopt to retrieve netns cookie
- ip: treat lowest address of a IPv4 subnet as ordinary unicast address
allowing reclaiming of precious IPv4 addresses
- ipv6: use prandom_u32() for ID generation
- ip: add support for more flexible field selection for hashing
across multi-path routes (w/ offload to mlxsw)
- icmp: add support for extended RFC 8335 PROBE (ping)
- seg6: add support for SRv6 End.DT46 behavior
- mptcp:
- DSS checksum support (RFC 8684) to detect middlebox meddling
- support Connection-time 'C' flag
- time stamping support
- sctp: packetization Layer Path MTU Discovery (RFC 8899)
- xfrm: speed up state addition with seq set
- WiFi:
- hidden AP discovery on 6 GHz and other HE 6 GHz improvements
- aggregation handling improvements for some drivers
- minstrel improvements for no-ack frames
- deferred rate control for TXQs to improve reaction times
- switch from round robin to virtual time-based airtime scheduler
- add trace points:
- tcp checksum errors
- openvswitch - action execution, upcalls
- socket errors via sk_error_report
Device APIs:
- devlink: add rate API for hierarchical control of max egress rate
of virtual devices (VFs, SFs etc.)
- don't require RCU read lock to be held around BPF hooks
in NAPI context
- page_pool: generic buffer recycling
New hardware/drivers:
- mobile:
- iosm: PCIe Driver for Intel M.2 Modem
- support for Qualcomm MSM8998 (ipa)
- WiFi: Qualcomm QCN9074 and WCN6855 PCI devices
- sparx5: Microchip SparX-5 family of Enterprise Ethernet switches
- Mellanox BlueField Gigabit Ethernet (control NIC of the DPU)
- NXP SJA1110 Automotive Ethernet 10-port switch
- Qualcomm QCA8327 switch support (qca8k)
- Mikrotik 10/25G NIC (atl1c)
Driver changes:
- ACPI support for some MDIO, MAC and PHY devices from Marvell and NXP
(our first foray into MAC/PHY description via ACPI)
- HW timestamping (PTP) support: bnxt_en, ice, sja1105, hns3, tja11xx
- Mellanox/Nvidia NIC (mlx5)
- NIC VF offload of L2 bridging
- support IRQ distribution to Sub-functions
- Marvell (prestera):
- add flower and match all
- devlink trap
- link aggregation
- Netronome (nfp): connection tracking offload
- Intel 1GE (igc): add AF_XDP support
- Marvell DPU (octeontx2): ingress ratelimit offload
- Google vNIC (gve): new ring/descriptor format support
- Qualcomm mobile (rmnet & ipa): inline checksum offload support
- MediaTek WiFi (mt76)
- mt7915 MSI support
- mt7915 Tx status reporting
- mt7915 thermal sensors support
- mt7921 decapsulation offload
- mt7921 enable runtime pm and deep sleep
- Realtek WiFi (rtw88)
- beacon filter support
- Tx antenna path diversity support
- firmware crash information via devcoredump
- Qualcomm 60GHz WiFi (wcn36xx)
- Wake-on-WLAN support with magic packets and GTK rekeying
- Micrel PHY (ksz886x/ksz8081): add cable test support
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core:
- BPF:
- add syscall program type and libbpf support for generating
instructions and bindings for in-kernel BPF loaders (BPF loaders
for BPF), this is a stepping stone for signed BPF programs
- infrastructure to migrate TCP child sockets from one listener to
another in the same reuseport group/map to improve flexibility
of service hand-off/restart
- add broadcast support to XDP redirect
- allow bypass of the lockless qdisc to improving performance (for
pktgen: +23% with one thread, +44% with 2 threads)
- add a simpler version of "DO_ONCE()" which does not require jump
labels, intended for slow-path usage
- virtio/vsock: introduce SOCK_SEQPACKET support
- add getsocketopt to retrieve netns cookie
- ip: treat lowest address of a IPv4 subnet as ordinary unicast
address allowing reclaiming of precious IPv4 addresses
- ipv6: use prandom_u32() for ID generation
- ip: add support for more flexible field selection for hashing
across multi-path routes (w/ offload to mlxsw)
- icmp: add support for extended RFC 8335 PROBE (ping)
- seg6: add support for SRv6 End.DT46 behavior
- mptcp:
- DSS checksum support (RFC 8684) to detect middlebox meddling
- support Connection-time 'C' flag
- time stamping support
- sctp: packetization Layer Path MTU Discovery (RFC 8899)
- xfrm: speed up state addition with seq set
- WiFi:
- hidden AP discovery on 6 GHz and other HE 6 GHz improvements
- aggregation handling improvements for some drivers
- minstrel improvements for no-ack frames
- deferred rate control for TXQs to improve reaction times
- switch from round robin to virtual time-based airtime scheduler
- add trace points:
- tcp checksum errors
- openvswitch - action execution, upcalls
- socket errors via sk_error_report
Device APIs:
- devlink: add rate API for hierarchical control of max egress rate
of virtual devices (VFs, SFs etc.)
- don't require RCU read lock to be held around BPF hooks in NAPI
context
- page_pool: generic buffer recycling
New hardware/drivers:
- mobile:
- iosm: PCIe Driver for Intel M.2 Modem
- support for Qualcomm MSM8998 (ipa)
- WiFi: Qualcomm QCN9074 and WCN6855 PCI devices
- sparx5: Microchip SparX-5 family of Enterprise Ethernet switches
- Mellanox BlueField Gigabit Ethernet (control NIC of the DPU)
- NXP SJA1110 Automotive Ethernet 10-port switch
- Qualcomm QCA8327 switch support (qca8k)
- Mikrotik 10/25G NIC (atl1c)
Driver changes:
- ACPI support for some MDIO, MAC and PHY devices from Marvell and
NXP (our first foray into MAC/PHY description via ACPI)
- HW timestamping (PTP) support: bnxt_en, ice, sja1105, hns3, tja11xx
- Mellanox/Nvidia NIC (mlx5)
- NIC VF offload of L2 bridging
- support IRQ distribution to Sub-functions
- Marvell (prestera):
- add flower and match all
- devlink trap
- link aggregation
- Netronome (nfp): connection tracking offload
- Intel 1GE (igc): add AF_XDP support
- Marvell DPU (octeontx2): ingress ratelimit offload
- Google vNIC (gve): new ring/descriptor format support
- Qualcomm mobile (rmnet & ipa): inline checksum offload support
- MediaTek WiFi (mt76)
- mt7915 MSI support
- mt7915 Tx status reporting
- mt7915 thermal sensors support
- mt7921 decapsulation offload
- mt7921 enable runtime pm and deep sleep
- Realtek WiFi (rtw88)
- beacon filter support
- Tx antenna path diversity support
- firmware crash information via devcoredump
- Qualcomm WiFi (wcn36xx)
- Wake-on-WLAN support with magic packets and GTK rekeying
- Micrel PHY (ksz886x/ksz8081): add cable test support"
* tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2168 commits)
tcp: change ICSK_CA_PRIV_SIZE definition
tcp_yeah: check struct yeah size at compile time
gve: DQO: Fix off by one in gve_rx_dqo()
stmmac: intel: set PCI_D3hot in suspend
stmmac: intel: Enable PHY WOL option in EHL
net: stmmac: option to enable PHY WOL with PMT enabled
net: say "local" instead of "static" addresses in ndo_dflt_fdb_{add,del}
net: use netdev_info in ndo_dflt_fdb_{add,del}
ptp: Set lookup cookie when creating a PTP PPS source.
net: sock: add trace for socket errors
net: sock: introduce sk_error_report
net: dsa: replay the local bridge FDB entries pointing to the bridge dev too
net: dsa: ensure during dsa_fdb_offload_notify that dev_hold and dev_put are on the same dev
net: dsa: include fdb entries pointing to bridge in the host fdb list
net: dsa: include bridge addresses which are local in the host fdb list
net: dsa: sync static FDB entries on foreign interfaces to hardware
net: dsa: install the host MDB and FDB entries in the master's RX filter
net: dsa: reference count the FDB addresses at the cross-chip notifier level
net: dsa: introduce a separate cross-chip notifier type for host FDBs
net: dsa: reference count the MDB entries at the cross-chip notifier level
...
new warning that several people reported.
- Flip CONFIG_SCHED_CORE to default-disabled, and update the
Kconfig help text.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-urgent-2021-06-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
- Fix a small inconsistency (bug) in load tracking, caught by a new
warning that several people reported.
- Flip CONFIG_SCHED_CORE to default-disabled, and update the Kconfig
help text.
* tag 'sched-urgent-2021-06-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/core: Disable CONFIG_SCHED_CORE by default
sched/fair: Ensure _sum and _avg values stay consistent
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Merge tag 'safesetid-5.14' of git://github.com/micah-morton/linux
Pull SafeSetID update from Micah Morton:
"One very minor code cleanup change that marks a variable as
__initdata"
* tag 'safesetid-5.14' of git://github.com/micah-morton/linux:
LSM: SafeSetID: Mark safesetid_initialized as __initdata
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Merge tag 'Smack-for-5.14' of git://github.com/cschaufler/smack-next
Pull smack updates from Casey Schaufler:
"There is nothing more significant than an improvement to a byte count
check in smackfs.
All changes have been in next for weeks"
* tag 'Smack-for-5.14' of git://github.com/cschaufler/smack-next:
Smack: fix doc warning
Revert "Smack: Handle io_uring kernel thread privileges"
smackfs: restrict bytes count in smk_set_cipso()
security/smack/: fix misspellings using codespell tool
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Merge tag 'audit-pr-20210629' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
Pull audit updates from Paul Moore:
"Another merge window, another small audit pull request.
Four patches in total: one is cosmetic, one removes an unnecessary
initialization, one renames some enum values to prevent name
collisions, and one converts list_del()/list_add() to list_move().
None of these are earth shattering and all pass the audit-testsuite
tests while merging cleanly on top of your tree from earlier today"
* tag 'audit-pr-20210629' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
audit: remove unnecessary 'ret' initialization
audit: remove trailing spaces and tabs
audit: Use list_move instead of list_del/list_add
audit: Rename enum audit_state constants to avoid AUDIT_DISABLED redefinition
audit: add blank line after variable declarations
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Merge tag 'selinux-pr-20210629' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull SELinux updates from Paul Moore:
- The slow_avc_audit() function is now non-blocking so we can remove
the AVC_NONBLOCKING tricks; this also includes the 'flags' variant of
avc_has_perm().
- Use kmemdup() instead of kcalloc()+copy when copying parts of the
SELinux policydb.
- The InfiniBand device name is now passed by reference when possible
in the SELinux code, removing a strncpy().
- Minor cleanups including: constification of avtab function args,
removal of useless LSM/XFRM function args, SELinux kdoc fixes, and
removal of redundant assignments.
* tag 'selinux-pr-20210629' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: kill 'flags' argument in avc_has_perm_flags() and avc_audit()
selinux: slow_avc_audit has become non-blocking
selinux: Fix kernel-doc
selinux: use __GFP_NOWARN with GFP_NOWAIT in the AVC
lsm_audit,selinux: pass IB device name by reference
selinux: Remove redundant assignment to rc
selinux: Corrected comment to match kernel-doc comment
selinux: delete selinux_xfrm_policy_lookup() useless argument
selinux: constify some avtab function arguments
selinux: simplify duplicate_policydb_cond_list() by using kmemdup()
- Add CC_HAS_NO_PROFILE_FN_ATTR in preparation for PGO support in
the face of the noinstr attribute, paving the way for PGO and fixing
GCOV. (Nick Desaulniers)
- x86_64 LTO coverage is expanded to 32-bit x86. (Nathan Chancellor)
- Small fixes to CFI. (Mark Rutland, Nathan Chancellor)
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Merge tag 'clang-features-v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull clang feature updates from Kees Cook:
- Add CC_HAS_NO_PROFILE_FN_ATTR in preparation for PGO support in the
face of the noinstr attribute, paving the way for PGO and fixing
GCOV. (Nick Desaulniers)
- x86_64 LTO coverage is expanded to 32-bit x86. (Nathan Chancellor)
- Small fixes to CFI. (Mark Rutland, Nathan Chancellor)
* tag 'clang-features-v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
qemu_fw_cfg: Make fw_cfg_rev_attr a proper kobj_attribute
Kconfig: Introduce ARCH_WANTS_NO_INSTR and CC_HAS_NO_PROFILE_FN_ATTR
compiler_attributes.h: cleanups for GCC 4.9+
compiler_attributes.h: define __no_profile, add to noinstr
x86, lto: Enable Clang LTO for 32-bit as well
CFI: Move function_nocfi() into compiler.h
MAINTAINERS: Add Clang CFI section
We currently spin in iopoll() when requests to be iopolled are for
same file(device), while one device may have multiple hardware queues.
given an example:
hw_queue_0 | hw_queue_1
req(30us) req(10us)
If we first spin on iopolling for the hw_queue_0. the avg latency would
be (30us + 30us) / 2 = 30us. While if we do round robin, the avg
latency would be (30us + 10us) / 2 = 20us since we reap the request in
hw_queue_1 in time. So it's better to do spinning only when requests
are in same hardware queue.
Signed-off-by: Hao Xu <haoxu@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Most of requests are allocated from an internal cache, so it's waste of
time fully initialising them every time. Instead, let's pre-init some of
the fields we can during initial allocation (e.g. kmalloc(), see
io_alloc_req()) and keep them valid on request recycling. There are four
of them in this patch:
->ctx is always stays the same
->link is NULL on free, it's an invariant
->result is not even needed to init, just a precaution
->async_data we now clean in io_dismantle_req() as it's likely to
never be allocated.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/892ba0e71309bba9fe9e0142472330bbf9d8f05d.1624739600.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Since cancellation got moved before exit_signals(), there is no one left
who can call io_run_task_work() with PF_EXIING set, so remove the check.
Note that __io_req_task_submit() still needs a similar check.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/f7f305ececb1e6044ea649fb983ca754805bb884.1624739600.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
gcc 11 goes a weird path and duplicates most of io_arm_poll_handler()
for READ and WRITE cases. Help it and move all pollin vs pollout
specific bits under a single if-else, so there is no temptation for this
kind of unfolding.
before vs after:
text data bss dec hex filename
85362 12650 8 98020 17ee4 ./fs/io_uring.o
85186 12650 8 97844 17e34 ./fs/io_uring.o
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/1deea0037293a922a0358e2958384b2e42437885.1624739600.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
It is quite frequent that when an operation fails and returns EAGAIN,
the data becomes available between that failure and the call to
vfs_poll() done by io_arm_poll_handler().
Detecting the situation and reissuing the operation is much faster
than going ahead and push the operation to the io-wq.
Performance improvement testing has been performed with:
Single thread, 1 TCP connection receiving a 5 Mbps stream, no sqpoll.
4 measurements have been taken:
1. The time it takes to process a read request when data is already available
2. The time it takes to process by calling twice io_issue_sqe() after vfs_poll() indicated that data was available
3. The time it takes to execute io_queue_async_work()
4. The time it takes to complete a read request asynchronously
2.25% of all the read operations did use the new path.
ready data (baseline)
avg 3657.94182918628
min 580
max 20098
stddev 1213.15975908162
reissue completion
average 7882.67567567568
min 2316
max 28811
stddev 1982.79172973284
insert io-wq time
average 8983.82276995305
min 3324
max 87816
stddev 2551.60056552038
async time completion
average 24670.4758861127
min 10758
max 102612
stddev 3483.92416873804
Conclusion:
On average reissuing the sqe with the patch code is 1.1uSec faster and
in the worse case scenario 59uSec faster than placing the request on
io-wq
On average completion time by reissuing the sqe with the patch code is
16.79uSec faster and in the worse case scenario 73.8uSec faster than
async completion.
Signed-off-by: Olivier Langlois <olivier@trillion01.com>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/9e8441419bb1b8f3c3fcc607b2713efecdef2136.1624364038.git.olivier@trillion01.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
We can't support IOPOLL with non-pollable request types, and we should
check for unused/reserved fields like we do for other request types.
Fixes: 14a1143b68 ("io_uring: add support for IORING_OP_UNLINKAT")
Cc: stable@vger.kernel.org
Reported-by: Dmitry Kadashev <dkadashev@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
We can't support IOPOLL with non-pollable request types, and we should
check for unused/reserved fields like we do for other request types.
Fixes: 80a261fd00 ("io_uring: add support for IORING_OP_RENAMEAT")
Cc: stable@vger.kernel.org
Reported-by: Dmitry Kadashev <dkadashev@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Merge tag 'for-5.14/drivers-2021-06-29' of git://git.kernel.dk/linux-block
Pull block driver updates from Jens Axboe:
"Pretty calm round, mostly just NVMe and a bit of MD:
- NVMe updates (via Christoph)
- improve the APST configuration algorithm (Alexey Bogoslavsky)
- look for StorageD3Enable on companion ACPI device
(Mario Limonciello)
- allow selecting the network interface for TCP connections
(Martin Belanger)
- misc cleanups (Amit Engel, Chaitanya Kulkarni, Colin Ian King,
Christoph)
- move the ACPI StorageD3 code to drivers/acpi/ and add quirks
for certain AMD CPUs (Mario Limonciello)
- zoned device support for nvmet (Chaitanya Kulkarni)
- fix the rules for changing the serial number in nvmet
(Noam Gottlieb)
- various small fixes and cleanups (Dan Carpenter, JK Kim,
Chaitanya Kulkarni, Hannes Reinecke, Wesley Sheng, Geert
Uytterhoeven, Daniel Wagner)
- MD updates (Via Song)
- iostats rewrite (Guoqing Jiang)
- raid5 lock contention optimization (Gal Ofri)
- Fall through warning fix (Gustavo)
- Misc fixes (Gustavo, Jiapeng)"
* tag 'for-5.14/drivers-2021-06-29' of git://git.kernel.dk/linux-block: (78 commits)
nvmet: use NVMET_MAX_NAMESPACES to set nn value
loop: Fix missing discard support when using LOOP_CONFIGURE
nvme.h: add missing nvme_lba_range_type endianness annotations
nvme: remove zeroout memset call for struct
nvme-pci: remove zeroout memset call for struct
nvmet: remove zeroout memset call for struct
nvmet: add ZBD over ZNS backend support
nvmet: add Command Set Identifier support
nvmet: add nvmet_req_bio put helper for backends
nvmet: add req cns error complete helper
block: export blk_next_bio()
nvmet: remove local variable
nvmet: use nvme status value directly
nvmet: use u32 type for the local variable nsid
nvmet: use u32 for nvmet_subsys max_nsid
nvmet: use req->cmd directly in file-ns fast path
nvmet: use req->cmd directly in bdev-ns fast path
nvmet: make ver stable once connection established
nvmet: allow mn change if subsys not discovered
nvmet: make sn stable once connection was established
...
Pull HID updates from Jiri Kosina:
- patch series that ensures that hid-multitouch driver disables touch
and button-press reporting on hid-mt devices during suspend when the
device is not configured as a wakeup-source, from Hans de Goede
- support for ISH DMA on Intel EHL platform, from Even Xu
- support for Renoir and Cezanne SoCs, Ambient Light Sensor and Human
Presence Detection sensor for amd-sfh driver, from Basavaraj Natikar
- other assorted code cleanups and device-specific fixes/quirks
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (45 commits)
HID: thrustmaster: Switch to kmemdup() when allocate change_request
HID: multitouch: Disable event reporting on suspend when the device is not a wakeup-source
HID: logitech-dj: Implement may_wakeup ll-driver callback
HID: usbhid: Implement may_wakeup ll-driver callback
HID: core: Add hid_hw_may_wakeup() function
HID: input: Add support for Programmable Buttons
HID: wacom: Correct base usage for capacitive ExpressKey status bits
HID: amd_sfh: Add initial support for HPD sensor
HID: amd_sfh: Extend ALS support for newer AMD platform
HID: amd_sfh: Extend driver capabilities for multi-generation support
HID: surface-hid: Fix get-report request
HID: sony: fix freeze when inserting ghlive ps3/wii dongles
HID: usbkbd: Avoid GFP_ATOMIC when GFP_KERNEL is possible
HID: amd_sfh: change in maintainer
HID: intel-ish-hid: ipc: Specify that EHL no cache snooping
HID: intel-ish-hid: ishtp: Add dma_no_cache_snooping() callback
HID: intel-ish-hid: Set ISH driver depends on x86
HID: hid-input: add Surface Go battery quirk
HID: intel-ish-hid: Fix minor typos in comments
HID: usbmouse: Avoid GFP_ATOMIC when GFP_KERNEL is possible
...
- Clean up error messages from thunderx_edac
- Add MODULE_DEVICE_TABLE to ti_edac so it will autoload
- Use %pR to print resources in aspeed_edac
- Add Yazen Ghannam as MAINTAINER for AMD edac drivers
- Fix Ice Lake and Sapphire Rapids drivers to report correct
"near" or "far" device for errors in 2LM configurations
- Add support of on package high bandwidth memory in Sapphire Rapids
- New CPU support for three CPUs supporting in-band ECC (IOT SKUs for
ICL-NNPI, Tiger Lake and Alder Lake)
- Don't even try to load Intel EDAC drivers when running as a guest
- Fix Kconfig dependency on X86_MCE_INTEL for EDAC_IGEN6
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Merge tag 'edac_updates_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC updates from Tony Luck:
"Various fixes and support for new CPUs:
- Clean up error messages from thunderx_edac
- Add MODULE_DEVICE_TABLE to ti_edac so it will autoload
- Use %pR to print resources in aspeed_edac
- Add Yazen Ghannam as MAINTAINER for AMD edac drivers
- Fix Ice Lake and Sapphire Rapids drivers to report correct "near"
or "far" device for errors in 2LM configurations
- Add support of on package high bandwidth memory in Sapphire Rapids
- New CPU support for three CPUs supporting in-band ECC (IOT SKUs for
ICL-NNPI, Tiger Lake and Alder Lake)
- Don't even try to load Intel EDAC drivers when running as a guest
- Fix Kconfig dependency on X86_MCE_INTEL for EDAC_IGEN6"
* tag 'edac_updates_for_v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/igen6: fix core dependency
EDAC/Intel: Do not load EDAC driver when running as a guest
EDAC/igen6: Add Intel Alder Lake SoC support
EDAC/igen6: Add Intel Tiger Lake SoC support
EDAC/igen6: Add Intel ICL-NNPI SoC support
EDAC/i10nm: Add support for high bandwidth memory
EDAC/i10nm: Add detection of memory levels for ICX/SPR servers
EDAC/skx_common: Add new ADXL components for 2-level memory
MAINTAINERS: Make Yazen Ghannam maintainer for EDAC-AMD64
EDAC/aspeed: Use proper format string for printing resource
EDAC/ti: Add missing MODULE_DEVICE_TABLE
EDAC/thunderx: Remove irrelevant variable from error messages
Pull tpm driver updates from Jarkko Sakkinen:
"Bug fixes for TPM"
[ This isn't actually the whole contents of the tag and thus doesn't
contain Jarkko's signature - I dropped the two top commits that added
support for signing modules using elliptic curve keys because there's
a new series for that that fixes a few confising things - Linus ]
* tag 'tpmdd-next-v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
tpm: Replace WARN_ONCE() with dev_err_once() in tpm_tis_status()
tpm_tis: Use DEFINE_RES_MEM() to simplify code
tpm: fix some doc warnings in tpm1-cmd.c
tpm_tis_spi: add missing SPI device ID entries
tpm: add longer timeout for TPM2_CC_VERIFY_SIGNATURE
char: tpm: move to use request_irq by IRQF_NO_AUTOEN flag
tpm_tis_spi: set default probe function if device id not match
tpm_crb: Use IOMEM_ERR_PTR when function returns iomem
Highlights:
- New think-lmi driver adding support for changing BIOS settings from
within Linux using the standard firmware-attributes class sysfs API
- MS Surface aggregator-cdev now also supports forwarding events to
user-space (for debugging / new driver development purposes only)
- New intel_skl_int3472 driver this provides the necessary glue to
translate ACPI table information to GPIOs, regulators, etc. for
camera sensors on Intel devices with IPU3 attached MIPI cameras
- A whole bunch of other fixes + device-specific quirk additions
- New devm_work_autocancel() devm-helpers.h function
Note this also contains merges of the following immutable branches/tags
shared with other subsystems:
- platform-drivers-x86-goodix-v5.14-1
- intel-gpio-v5.14-1
- linux-pm/acpi-scan
- devm-helpers-v5.14-1
The following is an automated git shortlog grouped by driver:
ACPI:
- scan: initialize local variable to avoid garbage being returned
- scan: Add function to fetch dependent of ACPI device
- scan: Extend acpi_walk_dep_device_list()
- scan: Rearrange dep_unmet initialization
Add intel_skl_int3472 driver:
- Add intel_skl_int3472 driver
ISST:
- Use numa node id for cpu pci dev mapping
- Optimize CPU to PCI device mapping
Input:
- goodix - platform/x86: touchscreen_dmi - Move upside down quirks to touchscreen_dmi.c
MAINTAINERS:
- Update IRC link for Surface System Aggregator subsystem
- Update info for telemetry
Merge remote-tracking branch 'linux-pm/acpi-scan' into review-hans:
- Merge remote-tracking branch 'linux-pm/acpi-scan' into review-hans
Merge tag 'devm-helpers-v5.14-1' into review-hans:
- Merge tag 'devm-helpers-v5.14-1' into review-hans
Merge tag 'intel-gpio-v5.14-1' into review-hans:
- Merge tag 'intel-gpio-v5.14-1' into review-hans
Merge tag 'platform-drivers-x86-goodix-v5.14-1' into review-hans:
- Merge tag 'platform-drivers-x86-goodix-v5.14-1' into review-hans
Remove "default n" entries:
- Remove "default n" entries
Rename hp-wireless to wireless-hotkey:
- Rename hp-wireless to wireless-hotkey
asus-nb-wmi:
- Revert "add support for ASUS ROG Zephyrus G14 and G15"
- Revert "Drop duplicate DMI quirk structures"
dcdbas:
- drop unneeded assignment in host_control_smi()
dell-privacy:
- Add support for Dell hardware privacy
dell-wmi:
- Rename dell-wmi.c to dell-wmi-base.c
dell-wmi-sysman:
- Change user experience when Admin/System Password is modified
- fw_attr_inuse can be static
- Use firmware_attributes_class helper
- Make populate_foo_data functions more robust
dell-wmi-sysman/think-lmi:
- Make fw_attr_class global static
devm-helpers:
- Add resource managed version of work init
docs:
- driver-api: Update Surface Aggregator user-space interface documentation
extcon:
- extcon-max8997: Simplify driver using devm
- extcon-max8997: Fix IRQ freeing at error path
- extcon-max77693.c: Fix potential work-queue cancellation race
- extcon-max14577: Fix potential work-queue cancellation race
firmware_attributes_class:
- Create helper file for handling firmware-attributes class registration events
gpio:
- wcove: Split error handling for CTRL and IRQ registers
- wcove: Unify style of to_reg() with to_ireg()
- wcove: Use IRQ hardware number getter instead of direct access
- crystalcove: remove platform_set_drvdata() + cleanup probe
gpiolib:
- acpi: Add acpi_gpio_get_io_resource()
- acpi: Introduce acpi_get_and_request_gpiod() helper
hdaps:
- Constify static attribute_group struct
ideapad-laptop:
- Ignore VPC event bit 10
intel_cht_int33fe:
- Move to its own subfolder
- Correct "displayport" fwnode reference
intel_ips:
- fix set but unused warning in read_mgtv
intel_pmt_crashlog:
- Constify static attribute_group struct
intel_skl_int3472:
- Uninitialized variable in skl_int3472_handle_gpio_resources()
- Move to intel/ subfolder
- Provide skl_int3472_unregister_clock()
- Provide skl_int3472_unregister_regulator()
- Use ACPI GPIO resource directly
- Fix dependencies (drop CLKDEV_LOOKUP)
- Free ACPI device resources after use
mfd:
- tps68470: Remove tps68470 MFD driver
platform/mellanox:
- mlxreg-hotplug: Revert "move to use request_irq by IRQF_NO_AUTOEN flag"
platform/surface:
- aggregator: Use list_move_tail instead of list_del/list_add_tail in ssh_packet_layer.c
- aggregator: Use list_move_tail instead of list_del/list_add_tail in ssh_request_layer.c
- aggregator: Drop unnecessary variable initialization
- aggregator: Do not return uninitialized value
- aggregator_cdev: Add lockdep support
- aggregator_cdev: Allow enabling of events from user-space
- aggregator_cdev: Add support for forwarding events to user-space
- aggregator: Update copyright
- aggregator: Allow enabling of events without notifiers
- aggregator: Allow registering notifiers without enabling events
- dtx: Add missing mutex_destroy() call in failure path
- aggregator: Fix event disable function
- aggregator_registry: Consolidate node groups for 5th- and 6th-gen devices
- aggregator_registry: Add support for 13" Intel Surface Laptop 4
- aggregator_registry: Update comments for 15" AMD Surface Laptop 4
samsung-laptop:
- set debugfs blobs to read only
- use octal numbers for rwx file permissions
tc1100-wmi:
- Constify static attribute_group struct
think-lmi:
- Move kfree(setting->possible_values) to tlmi_attr_setting_release()
- Split current_value to reflect only the value
- Fix issues with duplicate attributes
- Return EINVAL when kbdlang gets set to a 0 length string
- Add missing MODULE_DEVICE_TABLE
- Avoid potential read before start of the buffer
- Fix check for admin password being set
- Add WMI interface support on Lenovo platforms
thinkpad-lmi:
- Remove unused display_name member from struct tlmi_pwd_setting
thinkpad_acpi:
- Add X1 Carbon Gen 9 second fan support
- Fix inconsistent indenting
tools/power/x86/intel-speed-select:
- v1.10 release
- Fix uncore memory frequency display
toshiba_acpi:
- Fix missing error code in toshiba_acpi_setup_keyboard()
toshiba_haps:
- Fix missing newline in pr_debug call in toshiba_haps_notify
touchscreen_dmi:
- Fix Chuwi Hi10 Pro comment
- Add info for the Goodix GT912 panel of TM800A550L tablets
- Add an extra entry for the upside down Goodix touchscreen on Teclast X89 tablets
x86/platform/uv:
- Constify static attribute_group struct
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Merge tag 'platform-drivers-x86-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
"Highlights:
- New think-lmi driver adding support for changing Lenovo Thinkpad
BIOS settings from within Linux using the standard firmware-
attributes class sysfs API
- MS Surface aggregator-cdev now also supports forwarding events to
user-space (for debugging / new driver development purposes only)
- New intel_skl_int3472 driver this provides the necessary glue to
translate ACPI table information to GPIOs, regulators, etc. for
camera sensors on Intel devices with IPU3 attached MIPI cameras
- A whole bunch of other fixes + device-specific quirk additions
- New devm_work_autocancel() devm-helpers.h function"
* tag 'platform-drivers-x86-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (83 commits)
platform/x86: dell-wmi-sysman: Change user experience when Admin/System Password is modified
platform/x86: intel_skl_int3472: Uninitialized variable in skl_int3472_handle_gpio_resources()
platform/x86: think-lmi: Move kfree(setting->possible_values) to tlmi_attr_setting_release()
platform/x86: think-lmi: Split current_value to reflect only the value
platform/x86: think-lmi: Fix issues with duplicate attributes
platform/x86: think-lmi: Return EINVAL when kbdlang gets set to a 0 length string
platform/x86: intel_cht_int33fe: Move to its own subfolder
platform/x86: intel_skl_int3472: Move to intel/ subfolder
platform/x86: intel_skl_int3472: Provide skl_int3472_unregister_clock()
platform/x86: intel_skl_int3472: Provide skl_int3472_unregister_regulator()
platform/x86: intel_skl_int3472: Use ACPI GPIO resource directly
platform/x86: intel_skl_int3472: Fix dependencies (drop CLKDEV_LOOKUP)
platform/x86: intel_skl_int3472: Free ACPI device resources after use
platform/x86: Remove "default n" entries
platform/x86: ISST: Use numa node id for cpu pci dev mapping
platform/x86: ISST: Optimize CPU to PCI device mapping
tools/power/x86/intel-speed-select: v1.10 release
tools/power/x86/intel-speed-select: Fix uncore memory frequency display
extcon: extcon-max8997: Simplify driver using devm
extcon: extcon-max8997: Fix IRQ freeing at error path
...
Mostly a restructure of the kcs_bmc driver to make it easier to
use with different types of devices, and just to clean things up and
improve things.
Also some bug fixes for the kcs_bmc driver.
One fix to the IPMI watchdog to stop the timer when the action is none.
Not a big deal, but it's the right thing to do.
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Merge tag 'for-linus-5.14-1' of git://github.com/cminyard/linux-ipmi
Pull IPMI driver updates from Corey Minyard:
"Mostly a restructure of the kcs_bmc driver to make it easier to use
with different types of devices, and just to clean things up and
improve things.
Also some bug fixes for the kcs_bmc driver.
One fix to the IPMI watchdog to stop the timer when the action is
none. Not a big deal, but it's the right thing to do"
* tag 'for-linus-5.14-1' of git://github.com/cminyard/linux-ipmi:
ipmi: kcs_bmc_aspeed: Fix less than zero comparison of a unsigned int
ipmi: kcs_bmc_aspeed: Optionally apply status address
ipmi: kcs_bmc_aspeed: Fix IBFIE typo from datasheet
ipmi: kcs_bmc_aspeed: Implement KCS SerIRQ configuration
dt-bindings: ipmi: Add optional SerIRQ property to ASPEED KCS devices
dt-bindings: ipmi: Convert ASPEED KCS binding to schema
ipmi: kcs_bmc: Add serio adaptor
ipmi: kcs_bmc: Enable IBF on open
ipmi: kcs_bmc: Allow clients to control KCS IRQ state
ipmi: kcs_bmc: Decouple the IPMI chardev from the core
ipmi: kcs_bmc: Strip private client data from struct kcs_bmc
ipmi: kcs_bmc: Split headers into device and client
ipmi: kcs_bmc: Turn the driver data-structures inside-out
ipmi: kcs_bmc: Split out kcs_bmc_cdev_ipmi
ipmi: kcs_bmc: Rename {read,write}_{status,data}() functions
ipmi: kcs_bmc: Make status update atomic
ipmi: kcs_bmc_aspeed: Use of match data to extract KCS properties
ipmi/watchdog: Stop watchdog timer when the current action is 'none'
Export jbd2_journal_[un]register_shrinker() to fix this error when
ext4 is built as a module:
ERROR: modpost: "jbd2_journal_unregister_shrinker" undefined!
ERROR: modpost: "jbd2_journal_register_shrinker" undefined!
Fixes: 4ba3fcdde7 ("jbd2,ext4: add a shrinker to release checkpointed buffers")
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210630083638.140218-1-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
- patch series that ensures that hid-multitouch driver disables touch and
button-press reporting on hid-mt devices during suspend when the device is
not configured as a wakeup-source, from Hans de Goede
- support for LCD menu keys + LCD brightness control on the Logitech Z-10
speakers (with LCD) which use the same protocol as the G15 keyboards
from Hans de Goede
- device unbinding locking fix from Dmitry Torokhov
- support for programmable buttons (mapping to KEY_MACRO# event codes)
from Thomas Weißschuh
- various other small fixes and code style improvements
This is a major dlm networking enhancement that adds message
retransmission so that the dlm can reliably continue operating
when network connections fail and nodes reconnect. Previously,
this would result in lost messages which could only be handled
as a node failure.
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Merge tag 'dlm-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
Pull dlm updates from David Teigland:
"This is a major dlm networking enhancement that adds message
retransmission so that the dlm can reliably continue operating when
network connections fail and nodes reconnect.
Previously, this would result in lost messages which could only be
handled as a node failure"
* tag 'dlm-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm: (26 commits)
fs: dlm: invalid buffer access in lookup error
fs: dlm: fix race in mhandle deletion
fs: dlm: rename socket and app buffer defines
fs: dlm: introduce proto values
fs: dlm: move dlm allow conn
fs: dlm: use alloc_ordered_workqueue
fs: dlm: fix memory leak when fenced
fs: dlm: fix lowcomms_start error case
fs: dlm: Fix spelling mistake "stucked" -> "stuck"
fs: dlm: Fix memory leak of object mh
fs: dlm: don't allow half transmitted messages
fs: dlm: add midcomms debugfs functionality
fs: dlm: add reliable connection if reconnect
fs: dlm: add union in dlm header for lockspace id
fs: dlm: move out some hash functionality
fs: dlm: add functionality to re-transmit a message
fs: dlm: make buffer handling per msg
fs: dlm: add more midcomms hooks
fs: dlm: public header in out utility
fs: dlm: fix connection tcp EOF handling
...
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Merge tag 'gfs2-v5.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Andreas Gruenbacher:
"Various minor gfs2 cleanups and fixes"
* tag 'gfs2-v5.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: Clean up gfs2_unstuff_dinode
gfs2: Unstuff before locking page in gfs2_page_mkwrite
gfs2: Clean up the error handling in gfs2_page_mkwrite
gfs2: Fix error handling in init_statfs
gfs2: Fix underflow in gfs2_page_mkwrite
gfs2: Use list_move_tail instead of list_del/list_add_tail
gfs2: Fix do_gfs2_set_flags description
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Merge tag '5.14-rc-smb3-fixes-part1' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs updates from Steve French:
- improve fallocate emulation
- DFS fixes
- minor multichannel fixes
- various cleanup patches, many to address Coverity warnings
* tag '5.14-rc-smb3-fixes-part1' of git://git.samba.org/sfrench/cifs-2.6: (38 commits)
smb3: prevent races updating CurrentMid
cifs: fix missing spinlock around update to ses->status
cifs: missing null pointer check in cifs_mount
smb3: fix possible access to uninitialized pointer to DACL
cifs: missing null check for newinode pointer
cifs: remove two cases where rc is set unnecessarily in sid_to_id
SMB3: Add new info level for query directory
cifs: fix NULL dereference in smb2_check_message()
smbdirect: missing rc checks while waiting for rdma events
cifs: Avoid field over-reading memcpy()
smb311: remove dead code for non compounded posix query info
cifs: fix SMB1 error path in cifs_get_file_info_unix
smb3: fix uninitialized value for port in witness protocol move
cifs: fix unneeded null check
cifs: use SPDX-Licence-Identifier
cifs: convert list_for_each to entry variant in cifs_debug.c
cifs: convert list_for_each to entry variant in smb2misc.c
cifs: avoid extra calls in posix_info_parse
cifs: retry lookup and readdir when EAGAIN is returned.
cifs: fix check of dfs interlinks
...
