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8480905765
1220732 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Kent Overstreet
|
8480905765 |
bcachefs: Improve io option handling in data move path
The data move path now correctly picks IO options when inodes in different snapshots have different options applied. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
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Kent Overstreet
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bbe682c767 |
bcachefs: Ensure devices are always correctly initialized
We can't mark device superblocks or allocate journal on a device that isn't online. That means we may need to do this on every mount, because we may have formatted a new filesystem and then done the first mount (bch2_fs_initialize()) in degraded mode. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
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Kent Overstreet
|
d0261559c4 |
bcachefs: Delete duplicate time stats initialization
This code duplicated initialization already done in bch2_fs_btree_iter_init(). Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
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Kent Overstreet
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e38356d65e |
bcachefs: Kill dead code extent_save()
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
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Kent Overstreet
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253ba178c8 |
bcachefs: Fix ca->oldest_gen allocation
The ca->oldest_gen array needs to be the same size as the bucket_gens array; ca->mi.nbuckets is updated with only state_lock held, not gc_lock, so bch2_gc_gens() could race with device resize and allocate too small of an oldest_gens array. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
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Kent Overstreet
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a1d97d8417 |
bcachefs: Fix shrinker names
Shrinkers are now exported to debugfs, so the names can't have slashes in them. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
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Kent Overstreet
|
50a38ca1ba |
bcachefs: Fix btree_node_type enum
More forwards compatibility fixups: having BKEY_TYPE_btree at the end of the enum conflicts with unnkown btree IDs, this shifts BKEY_TYPE_btree to slot 0 and fixes things up accordingly. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
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Kent Overstreet
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88dfe193bd |
bcachefs: bch2_btree_id_str()
Since we can run with unknown btree IDs, we can't directly index btree IDs into fixed size arrays. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
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Kent Overstreet
|
b0b5bbf99f |
bcachefs: Don't run bch2_delete_dead_snapshots() unnecessarily
Be a bit more careful about when bch2_delete_dead_snapshots needs to run: it only needs to run synchronously if we're running fsck, and it only needs to run at all if we have snapshot nodes to delete or if fsck has noticed that it needs to run. Also: Rename BCH_FS_HAVE_DELETED_SNAPSHOTS -> BCH_FS_NEED_DELETE_DEAD_SNAPSHOTS Kill bch2_delete_dead_snapshots_hook(), move functionality to bch2_mark_snapshot() Factor out bch2_check_snapshot_needs_deletion(), to explicitly check if we need to be running snapshot deletion. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
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Kent Overstreet
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0dd092bf10 |
bcachefs: Fix lock ordering with snapshot_create_lock
We must not hold btree locks while taking snapshot_create_lock - this fixes a lockdep splat. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
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Kent Overstreet
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20e425d301 |
six locks: Lock contended tracepoints
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
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Kent Overstreet
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ee526b88ca |
closures: Fix race in closure_sync()
As pointed out by Linus, closure_sync() was racy; we could skip blocking immediately after a get() and a put(), but then that would skip any barrier corresponding to the other thread's put() barrier. To fix this, always do the full __closure_sync() sequence whenever any get() has happened and the closure might have been used by other threads. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
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Kent Overstreet
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2bce6368c4 |
closures: Better memory barriers
atomic_(dec|sub)_return_release() are a thing now - use them. Also, delete the useless barrier in set_closure_fn(): it's redundant with the memory barrier in closure_put(0. Since closure_put() would now otherwise just have a release barrier, we also need a new barrier when the ref hits 0 - smp_acquire__after_ctrl_dep(). Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
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Linus Torvalds
|
cd063c8b9e |
Misc fixes and cleanups:
- Fix potential MAX_NAME_LEN limit related build failures
- Fix scripts/faddr2line symbol filtering bug
- Fix scripts/faddr2line on LLVM=1
- Fix scripts/faddr2line to accept readelf output with mapping symbols
- Minor cleanups
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'objtool-core-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool updates from Ingo Molnar:
"Misc fixes and cleanups:
- Fix potential MAX_NAME_LEN limit related build failures
- Fix scripts/faddr2line symbol filtering bug
- Fix scripts/faddr2line on LLVM=1
- Fix scripts/faddr2line to accept readelf output with mapping
symbols
- Minor cleanups"
* tag 'objtool-core-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
scripts/faddr2line: Skip over mapping symbols in output from readelf
scripts/faddr2line: Use LLVM addr2line and readelf if LLVM=1
scripts/faddr2line: Don't filter out non-function symbols from readelf
objtool: Remove max symbol name length limitation
objtool: Propagate early errors
objtool: Use 'the fallthrough' pseudo-keyword
x86/speculation, objtool: Use absolute relocations for annotations
x86/unwind/orc: Remove redundant initialization of 'mid' pointer in __orc_find()
|
||
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Linus Torvalds
|
63ce50fff9 |
Scheduler changes for v6.7 are:
- Fair scheduler (SCHED_OTHER) improvements:
- Remove the old and now unused SIS_PROP code & option
- Scan cluster before LLC in the wake-up path
- Use candidate prev/recent_used CPU if scanning failed for cluster wakeup
- NUMA scheduling improvements:
- Improve the VMA access-PID code to better skip/scan VMAs
- Extend tracing to cover VMA-skipping decisions
- Improve/fix the recently introduced sched_numa_find_nth_cpu() code
- Generalize numa_map_to_online_node()
- Energy scheduling improvements:
- Remove the EM_MAX_COMPLEXITY limit
- Add tracepoints to track energy computation
- Make the behavior of the 'sched_energy_aware' sysctl more consistent
- Consolidate and clean up access to a CPU's max compute capacity
- Fix uclamp code corner cases
- RT scheduling improvements:
- Drive dl_rq->overloaded with dl_rq->pushable_dl_tasks updates
- Drive the ->rto_mask with rt_rq->pushable_tasks updates
- Scheduler scalability improvements:
- Rate-limit updates to tg->load_avg
- On x86 disable IBRS when CPU is offline to improve single-threaded performance
- Micro-optimize in_task() and in_interrupt()
- Micro-optimize the PSI code
- Avoid updating PSI triggers and ->rtpoll_total when there are no state changes
- Core scheduler infrastructure improvements:
- Use saved_state to reduce some spurious freezer wakeups
- Bring in a handful of fast-headers improvements to scheduler headers
- Make the scheduler UAPI headers more widely usable by user-space
- Simplify the control flow of scheduler syscalls by using lock guards
- Fix sched_setaffinity() vs. CPU hotplug race
- Scheduler debuggability improvements:
- Disallow writing invalid values to sched_rt_period_us
- Fix a race in the rq-clock debugging code triggering warnings
- Fix a warning in the bandwidth distribution code
- Micro-optimize in_atomic_preempt_off() checks
- Enforce that the tasklist_lock is held in for_each_thread()
- Print the TGID in sched_show_task()
- Remove the /proc/sys/kernel/sched_child_runs_first sysctl
- Misc cleanups & fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"Fair scheduler (SCHED_OTHER) improvements:
- Remove the old and now unused SIS_PROP code & option
- Scan cluster before LLC in the wake-up path
- Use candidate prev/recent_used CPU if scanning failed for cluster
wakeup
NUMA scheduling improvements:
- Improve the VMA access-PID code to better skip/scan VMAs
- Extend tracing to cover VMA-skipping decisions
- Improve/fix the recently introduced sched_numa_find_nth_cpu() code
- Generalize numa_map_to_online_node()
Energy scheduling improvements:
- Remove the EM_MAX_COMPLEXITY limit
- Add tracepoints to track energy computation
- Make the behavior of the 'sched_energy_aware' sysctl more
consistent
- Consolidate and clean up access to a CPU's max compute capacity
- Fix uclamp code corner cases
RT scheduling improvements:
- Drive dl_rq->overloaded with dl_rq->pushable_dl_tasks updates
- Drive the ->rto_mask with rt_rq->pushable_tasks updates
Scheduler scalability improvements:
- Rate-limit updates to tg->load_avg
- On x86 disable IBRS when CPU is offline to improve single-threaded
performance
- Micro-optimize in_task() and in_interrupt()
- Micro-optimize the PSI code
- Avoid updating PSI triggers and ->rtpoll_total when there are no
state changes
Core scheduler infrastructure improvements:
- Use saved_state to reduce some spurious freezer wakeups
- Bring in a handful of fast-headers improvements to scheduler
headers
- Make the scheduler UAPI headers more widely usable by user-space
- Simplify the control flow of scheduler syscalls by using lock
guards
- Fix sched_setaffinity() vs. CPU hotplug race
Scheduler debuggability improvements:
- Disallow writing invalid values to sched_rt_period_us
- Fix a race in the rq-clock debugging code triggering warnings
- Fix a warning in the bandwidth distribution code
- Micro-optimize in_atomic_preempt_off() checks
- Enforce that the tasklist_lock is held in for_each_thread()
- Print the TGID in sched_show_task()
- Remove the /proc/sys/kernel/sched_child_runs_first sysctl
... and misc cleanups & fixes"
* tag 'sched-core-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (82 commits)
sched/fair: Remove SIS_PROP
sched/fair: Use candidate prev/recent_used CPU if scanning failed for cluster wakeup
sched/fair: Scan cluster before scanning LLC in wake-up path
sched: Add cpus_share_resources API
sched/core: Fix RQCF_ACT_SKIP leak
sched/fair: Remove unused 'curr' argument from pick_next_entity()
sched/nohz: Update comments about NEWILB_KICK
sched/fair: Remove duplicate #include
sched/psi: Update poll => rtpoll in relevant comments
sched: Make PELT acronym definition searchable
sched: Fix stop_one_cpu_nowait() vs hotplug
sched/psi: Bail out early from irq time accounting
sched/topology: Rename 'DIE' domain to 'PKG'
sched/psi: Delete the 'update_total' function parameter from update_triggers()
sched/psi: Avoid updating PSI triggers and ->rtpoll_total when there are no state changes
sched/headers: Remove comment referring to rq::cpu_load, since this has been removed
sched/numa: Complete scanning of inactive VMAs when there is no alternative
sched/numa: Complete scanning of partial VMAs regardless of PID activity
sched/numa: Move up the access pid reset logic
sched/numa: Trace decisions related to skipping VMAs
...
|
||
|
Linus Torvalds
|
3cf3fabccb |
Locking changes in this cycle are:
- Futex improvements:
- Add the 'futex2' syscall ABI, which is an attempt to get away from the
multiplex syscall and adds a little room for extentions, while lifting
some limitations.
- Fix futex PI recursive rt_mutex waiter state bug
- Fix inter-process shared futexes on no-MMU systems
- Use folios instead of pages
- Micro-optimizations of locking primitives:
- Improve arch_spin_value_unlocked() on asm-generic ticket spinlock
architectures, to improve lockref code generation.
- Improve the x86-32 lockref_get_not_zero() main loop by adding
build-time CMPXCHG8B support detection for the relevant lockref code,
and by better interfacing the CMPXCHG8B assembly code with the compiler.
- Introduce arch_sync_try_cmpxchg() on x86 to improve sync_try_cmpxchg()
code generation. Convert some sync_cmpxchg() users to sync_try_cmpxchg().
- Micro-optimize rcuref_put_slowpath()
- Locking debuggability improvements:
- Improve CONFIG_DEBUG_RT_MUTEXES=y to have a fast-path as well
- Enforce atomicity of sched_submit_work(), which is de-facto atomic but
was un-enforced previously.
- Extend <linux/cleanup.h>'s no_free_ptr() with __must_check semantics
- Fix ww_mutex self-tests
- Clean up const-propagation in <linux/seqlock.h> and simplify
the API-instantiation macros a bit.
- RT locking improvements:
- Provide the rt_mutex_*_schedule() primitives/helpers and use them
in the rtmutex code to avoid recursion vs. rtlock on the PI state.
- Add nested blocking lockdep asserts to rt_mutex_lock(), rtlock_lock()
and rwbase_read_lock().
- Plus misc fixes & cleanups
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Info Molnar:
"Futex improvements:
- Add the 'futex2' syscall ABI, which is an attempt to get away from
the multiplex syscall and adds a little room for extentions, while
lifting some limitations.
- Fix futex PI recursive rt_mutex waiter state bug
- Fix inter-process shared futexes on no-MMU systems
- Use folios instead of pages
Micro-optimizations of locking primitives:
- Improve arch_spin_value_unlocked() on asm-generic ticket spinlock
architectures, to improve lockref code generation
- Improve the x86-32 lockref_get_not_zero() main loop by adding
build-time CMPXCHG8B support detection for the relevant lockref
code, and by better interfacing the CMPXCHG8B assembly code with
the compiler
- Introduce arch_sync_try_cmpxchg() on x86 to improve
sync_try_cmpxchg() code generation. Convert some sync_cmpxchg()
users to sync_try_cmpxchg().
- Micro-optimize rcuref_put_slowpath()
Locking debuggability improvements:
- Improve CONFIG_DEBUG_RT_MUTEXES=y to have a fast-path as well
- Enforce atomicity of sched_submit_work(), which is de-facto atomic
but was un-enforced previously.
- Extend <linux/cleanup.h>'s no_free_ptr() with __must_check
semantics
- Fix ww_mutex self-tests
- Clean up const-propagation in <linux/seqlock.h> and simplify the
API-instantiation macros a bit
RT locking improvements:
- Provide the rt_mutex_*_schedule() primitives/helpers and use them
in the rtmutex code to avoid recursion vs. rtlock on the PI state.
- Add nested blocking lockdep asserts to rt_mutex_lock(),
rtlock_lock() and rwbase_read_lock()
.. plus misc fixes & cleanups"
* tag 'locking-core-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (39 commits)
futex: Don't include process MM in futex key on no-MMU
locking/seqlock: Fix grammar in comment
alpha: Fix up new futex syscall numbers
locking/seqlock: Propagate 'const' pointers within read-only methods, remove forced type casts
locking/lockdep: Fix string sizing bug that triggers a format-truncation compiler-warning
locking/seqlock: Change __seqprop() to return the function pointer
locking/seqlock: Simplify SEQCOUNT_LOCKNAME()
locking/atomics: Use atomic_try_cmpxchg_release() to micro-optimize rcuref_put_slowpath()
locking/atomic, xen: Use sync_try_cmpxchg() instead of sync_cmpxchg()
locking/atomic/x86: Introduce arch_sync_try_cmpxchg()
locking/atomic: Add generic support for sync_try_cmpxchg() and its fallback
locking/seqlock: Fix typo in comment
futex/requeue: Remove unnecessary ‘NULL’ initialization from futex_proxy_trylock_atomic()
locking/local, arch: Rewrite local_add_unless() as a static inline function
locking/debug: Fix debugfs API return value checks to use IS_ERR()
locking/ww_mutex/test: Make sure we bail out instead of livelock
locking/ww_mutex/test: Fix potential workqueue corruption
locking/ww_mutex/test: Use prng instead of rng to avoid hangs at bootup
futex: Add sys_futex_requeue()
futex: Add flags2 argument to futex_requeue()
...
|
||
|
Linus Torvalds
|
9cda4eb04a |
- A kernel-doc fix
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||
|
Linus Torvalds
|
f155f3b3ed |
- Make sure PCI function 4 IDs of AMD family 0x19, models 0x60-0x7f are
actually used in the amd_nb.c enumeration - Add support for extracting NUMA information from devicetree for Hyper-V usages - Add PCI device IDs for the new AMD MI300 AI accelerators - Annotate an array in struct uv_rtc_timer_head with the new __counted_by attribute - Rework UV's NMI action parameter handling -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmU78I4ACgkQEsHwGGHe VUoDFQ//a8KYzcj2wC+GA+tAScMCP4lT3hsSYoHvFE6Fd4HBngMUBcaEHY0InxWc jfXRHFZBS54sLMH2XPVOnozTBDLUEF+4cnApj9iVf//RwjSz/mnJ1P/fqwGQHmfY eyOKn38nzkdcf+MW69HAyOeOLxOhOcxEdrzJ4AuPijjTH0GfHWXtuZrqCgaRB6XZ yYw7PwO9azSBIYA3c87IPo5uGDa0Ht/BWWHv+XD21DjH0E2n2jaGPgExojBwpI1F zJZkx8xJWlQANSD9qiYWoYFdEluGAJ6Fyn989hMRVUqFLbGB9ppEu0BD5TWor08A UMX3LYIXM+706EnpOYKc5m5dajbUNOEUl73M6S6J67ugvRUWjCZpoejEx1Aejup7 aCcYrkbSiuVPFn8Wj9/JdkItu+zyzzsp3fjEdYlYVfefLh3EY4IrFAkQGUk7A0cA p6Idau8j4Cx+4lvNEFGMk/u7SAxcInJx7NDy8rJL9CG1BdbjzkwJH+GJFELuI/zM dSd+N2r5YUMClHR8Tor17PDh61i+ovg1kPhOyDyf7bNv0HQG0Hbcded4lyiVrsXa m5GNYRXEQFZXMeBxo6dJKDAj2rdSPsACC2FBTa9B+bciklcWid4FVTvf/9sSFeQv cvGFfGbFdW/uddAHsWqHMiuTfBsQneZ9UbZCKq/kAkHAtfdhRa8= =7JVZ -----END PGP SIGNATURE----- Merge tag 'x86_platform_for_6.7_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 platform updates from Borislav Petkov: - Make sure PCI function 4 IDs of AMD family 0x19, models 0x60-0x7f are actually used in the amd_nb.c enumeration - Add support for extracting NUMA information from devicetree for Hyper-V usages - Add PCI device IDs for the new AMD MI300 AI accelerators - Annotate an array in struct uv_rtc_timer_head with the new __counted_by attribute - Rework UV's NMI action parameter handling * tag 'x86_platform_for_6.7_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/amd_nb: Use Family 19h Models 60h-7Fh Function 4 IDs x86/numa: Add Devicetree support x86/of: Move the x86_flattree_get_config() call out of x86_dtb_init() x86/amd_nb: Add AMD Family MI300 PCI IDs x86/platform/uv: Annotate struct uv_rtc_timer_head with __counted_by x86/platform/uv: Rework NMI "action" modparam handling |
||
|
Linus Torvalds
|
ca2e9c3bee |
- Make sure the "svm" feature flag is cleared from /proc/cpuinfo when
virtualization support is disabled in the BIOS on AMD and Hygon platforms - A minor cleanup -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmU77KoACgkQEsHwGGHe VUrophAAtfsB+WhRydin0V6kjQeH+RbiWyx/jOw6eNqvzOzaOPxVXn0cAHRSgAO4 +S8tKIqaWpXNNNKpOIKBVaDkh9qr50/p36/jfVkXi8GOLYrK633F0BMjcG4+/vYQ A9b5iNiJhZ7xWE6+qRrqdg+o+a6UyPUGz34HNp3KwJVTdaHU2OnXXwuWeiUkgRrJ uQSfLc4+UIeefIzNy8Tqg083iaENBYMya7U90rzewD64NF0bsA15AEPut/6tnUVq ej3UU3cqO7nKXyhuZX+zpt856MZFa1rNYVXUAfoAO4xhqdN0Q5LFWO506sqajNx/ hqbT+hKDoC03zuLmbZO21s/uWQdtVFo63FU0h9QBRp1m6Ug5P3rQQCK8ydJc5xwr Yd7je6UPK9jIKBo9VP1qmsyzGwADNevNf1qGExHI2T6Wml7HgDmPysAHnGiKqRGI 1o9+Yqa+VBt8Wml9M8Ny+dLyr5F/2uq8sMrQedQlXdFMSzVm2JYecukJ5BvUWE/r Qyll8mTpIdgGXjBt56lMrgH7ibMC5ct/4MvTHOHuA997g/PwuwtWj7QyKXpUq2Rf o/c3zKKWIFxevjzwU86haCBaz+5xAQlB6dJw61ExxsmUuT/kZzkN15w6aqGZtpns PsARwnvuwZJ7vfqFLIa0ZkPN4OgnkRX7HlNqrVyKpONDTocZd9E= =i9On -----END PGP SIGNATURE----- Merge tag 'x86_cpu_for_6.7_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cpuid updates from Borislav Petkov: - Make sure the "svm" feature flag is cleared from /proc/cpuinfo when virtualization support is disabled in the BIOS on AMD and Hygon platforms - A minor cleanup * tag 'x86_cpu_for_6.7_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu/amd: Remove redundant 'break' statement x86/cpu: Clear SVM feature if disabled by BIOS |
||
|
Linus Torvalds
|
9ab021a1b5 |
- Add support for non-contiguous capacity bitmasks being added to
Intel's CAT implementation - Other improvements to resctrl code: better configuration, simplifications, debugging support, fixes -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmU7x3YACgkQEsHwGGHe VUqj4BAAn9HiQPuBWW5UPVpLoHBmKHtoNuIn2AWD3wcRwFwd+mO1JbPgQzMude0C QV/Dpm+PPxyFNATtCiRtqns3qHSt8wVMy/mrOKT7R20mmBxIhMb+323YvoamFSzc gamSKDZJFEp8Dqj2ccnwpFIdPjlTZGuOCumcxrHbrEs10ezsZ1UCSOjlQrRJSrFX M/KCVmrwVt6VR24Sz3K7e6atWgnl5Gj926VB0wXFSVAHII22Pirx7rdsHZXkgI0z pBHomVyZxyjzo3XV9szG1h+3iTPIebWH6A+25YGpmh7PZeFzuJhn6XXbpZ35tjSw 3EKjkbwJyDXLLfAV+MMzVYZeCzpxy5MEuTW6aNi4y59k6GAhyeHClq9HWePo8rp7 lMXVfSeFpdtG0n7WUVF2ctm7mAqTF8id2WGNfvXoP/bzB2mkXQ4x1GV+TvxAyex8 OAk7iHk0IhrakfDj1XAE1o0BiSkGKaNo0eT8LnuByaUvHQHSBo/24fFcFOC9V1NL K4eGfgn7yyXBFWvJch5LtdmG3LHQEJ9Dh4zZ8TkyHOt42Lc32JdHtBrRGdWRMyq9 p5lhLvPwuumjfjTeaXG4ABacdED1a8fiUzydumHmAux+an7irTqxwP51Y9MrxR1O 37+YBgEcO2nmubCUKUjvBga4ztFo0f/hMVqGqnME+tYwr7NzXx8= =GGQX -----END PGP SIGNATURE----- Merge tag 'x86_cache_for_6.7_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 resource control updates from Borislav Petkov: - Add support for non-contiguous capacity bitmasks being added to Intel's CAT implementation - Other improvements to resctrl code: better configuration, simplifications, debugging support, fixes * tag 'x86_cache_for_6.7_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/resctrl: Display RMID of resource group x86/resctrl: Add support for the files of MON groups only x86/resctrl: Display CLOSID for resource group x86/resctrl: Introduce "-o debug" mount option x86/resctrl: Move default group file creation to mount x86/resctrl: Unwind properly from rdt_enable_ctx() x86/resctrl: Rename rftype flags for consistency x86/resctrl: Simplify rftype flag definitions x86/resctrl: Add multiple tasks to the resctrl group at once Documentation/x86: Document resctrl's new sparse_masks x86/resctrl: Add sparse_masks file in info x86/resctrl: Enable non-contiguous CBMs in Intel CAT x86/resctrl: Rename arch_has_sparse_bitmaps x86/resctrl: Fix remaining kernel-doc warnings |
||
|
Linus Torvalds
|
f84a52eef5 |
- A bunch of improvements, cleanups and fixlets to the SRSO mitigation
machinery and other, general cleanups to the hw mitigations code, by Josh Poimboeuf - Improve the return thunk detection by objtool as it is absolutely important that the default return thunk is not used after returns have been patched. Future work to detect and report this better is pending - Other misc cleanups and fixes -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmU7mFEACgkQEsHwGGHe VUpbBxAAtS4X5LCntPWUsDEBU80SBYAunEp0Wd0ttYEj+UrEk4tvnWVGFiIEr47A PrRKK9JCJtC6ko0+dwPtMi66L/T7mCpoNPI1kzfRG1IHJBfvCTGJhzZsesogvkA2 1X9Je+RCVW4xVybIryxhjMGdB6jUoGEU1a4DmQXq481qiLB3ilvA1bIAaNo9BBYP rxKPrPcdOxn2NjxuOWg+FXjSc8LuAVSu3HqsgCW2AHJ6XIKEYWEq9FkXhwj9OJOr ax1F4qD1IY++jYZO9DJiltjeJyj0wC+yp8kDDURoLbcTk85WHlpD5vK0g64mELOA y0375thHep+vsrtQ/qZAmi/eVTaTekgbi7McahjoZebK7FbKOYRk6GZ+5+m29AVr DfQSJ7xQQqbCbpimeFmZ+gQf7mFexyDWvjUPyBl+OelOY1umdPM9IZVTnqib5LPr D2M+uqWfJhSwACi2o05LRv0gyhkAz0bGHrwZPmCVuxE5kBbhOpj4aT87fetUp/MW 8lEFa3PHx/gkh2VOJ7ZgKzpeD75Vjo8TRAXOe4O2jn/L54gNEJ+1mukvrjW3+lp1 ShmcZokl3ldPq6F5ioE+u45hVAfHkaruWM+5Rj3hsA/fdFN3isTVLhIRIsypPTKc p1ITT8Yhek8vkm9PcRBE5xWRmEZ2XE5ooDld930nJxra8QNVVQw= =E7c4 -----END PGP SIGNATURE----- Merge tag 'x86_bugs_for_6.7_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 hw mitigation updates from Borislav Petkov: - A bunch of improvements, cleanups and fixlets to the SRSO mitigation machinery and other, general cleanups to the hw mitigations code, by Josh Poimboeuf - Improve the return thunk detection by objtool as it is absolutely important that the default return thunk is not used after returns have been patched. Future work to detect and report this better is pending - Other misc cleanups and fixes * tag 'x86_bugs_for_6.7_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits) x86/retpoline: Document some thunk handling aspects x86/retpoline: Make sure there are no unconverted return thunks due to KCSAN x86/callthunks: Delete unused "struct thunk_desc" x86/vdso: Run objtool on vdso32-setup.o objtool: Fix return thunk patching in retpolines x86/srso: Remove unnecessary semicolon x86/pti: Fix kernel warnings for pti= and nopti cmdline options x86/calldepth: Rename __x86_return_skl() to call_depth_return_thunk() x86/nospec: Refactor UNTRAIN_RET[_*] x86/rethunk: Use SYM_CODE_START[_LOCAL]_NOALIGN macros x86/srso: Disentangle rethunk-dependent options x86/srso: Move retbleed IBPB check into existing 'has_microcode' code block x86/bugs: Remove default case for fully switched enums x86/srso: Remove 'pred_cmd' label x86/srso: Unexport untraining functions x86/srso: Improve i-cache locality for alias mitigation x86/srso: Fix unret validation dependencies x86/srso: Fix vulnerability reporting for missing microcode x86/srso: Print mitigation for retbleed IBPB case x86/srso: Print actual mitigation if requested mitigation isn't possible ... |
||
|
Linus Torvalds
|
01ae815c50 |
- Specify what error addresses reported on AMD are actually usable
memory error addresses for further decoding -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmU7kb8ACgkQEsHwGGHe VUq3/A//VTrsON+RRS+M7PVewXMiTbwjVytum/9gWXtuUBEFdWCQjCe4TSaI6+mX v8inAomBE7s3SoQYkosF1VO2l0r68aJLOm6hczzbjz+ZjGvramDiv5qCs0iMM8m4 Nvwyjeo1+2G6JeaX2rR7fqnZkA4NcYE1/s05pksNEaXMsAhpSOWenRgUK1EyQXLE y1u63G5GLMT4cpjEmEcbp9Lb02WwQzB9inZ1f4MFoujkI5VJ/9b68D+DpGwHd4Ag HNrg6LR/YpVwioVnsa+xEiQSxxwuRCHvS8kbc27d3qhfT4cRhmtAIsHYkyeO75TJ jkXU1Gme/k2RDEYHOz7heSVWgmG3y9/swc3UZJFE0QAnjdajY7mUsM9+o5uCm4Y6 rALf8z7t0+oMpG1YML5Y+0wvgcPk9pih6Mm9tbBlFCXPi2OQ5bieNkHe7RQXHcQx xwFoQI0ByWvW7omu+jqA8iN4YSLaQhST2wzghPF1Wu7KAewu5lpU+9kmgmL7utme aHIQFdhRFusYEABqlr8XQSew5FMtIfOeWWCdgWHghUQp6LCsA0QeUxcQR9VdY9Th IgY1j4G2lQeLpDlnWE9VPMCWk4cuTABRyVWEu1B4wScU3xRWD8jOh+LcF76RdoYz k7GW0d68DGDCRgU7q86LNM/bNH0zyIIteTj64uHBzQm0ygJcdZU= =NcVX -----END PGP SIGNATURE----- Merge tag 'ras_core_for_6.7_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 RAS updates from Borislav Petkov: - Specify what error addresses reported on AMD are actually usable memory error addresses for further decoding * tag 'ras_core_for_6.7_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mce: Cleanup mce_usable_address() x86/mce: Define amd_mce_usable_address() x86/MCE/AMD: Split amd_mce_is_memory_error() |
||
|
Linus Torvalds
|
66cc8838c7 |
- A new EDAC driver for Xilinx's Versal integrated memory controller
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||
|
Linus Torvalds
|
9e87705289 |
Initial bcachefs pull request for 6.7-rc1
Here's the bcachefs filesystem pull request. One new patch since last week: the exportfs constants ended up conflicting with other filesystems that are also getting added to the global enum, so switched to new constants picked by Amir. I'll also be sending another pull request later on in the cycle bringing things up to date my master branch that people are currently running; that will be restricted to fs/bcachefs/, naturally. Testing - fstests as well as the bcachefs specific tests in ktest: https://evilpiepirate.org/~testdashboard/ci?branch=bcachefs-for-upstream It's also been soaking in linux-next, which resulted in a whole bunch of smatch complaints and fixes and a patch or two from Kees. The only new non fs/bcachefs/ patch is the objtool patch that adds bcachefs functions to the list of noreturns. The patch that exports osq_lock() has been dropped for now, per Ingo. Prereq patch list: |
||
|
Linus Torvalds
|
d5acbc60fa |
for-6.7-tag
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Merge tag 'for-6.7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"New features:
- raid-stripe-tree
New tree for logical file extent mapping where the physical mapping
may not match on multiple devices. This is now used in zoned mode
to implement RAID0/RAID1* profiles, but can be used in non-zoned
mode as well. The support for RAID56 is in development and will
eventually fix the problems with the current implementation. This
is a backward incompatible feature and has to be enabled at mkfs
time.
- simple quota accounting (squota)
A simplified mode of qgroup that accounts all space on the initial
extent owners (a subvolume), the snapshots are then cheap to create
and delete. The deletion of snapshots in fully accounting qgroups
is a known CPU/IO performance bottleneck.
The squota is not suitable for the general use case but works well
for containers where the original subvolume exists for the whole
time. This is a backward incompatible feature as it needs extending
some structures, but can be enabled on an existing filesystem.
- temporary filesystem fsid (temp_fsid)
The fsid identifies a filesystem and is hard coded in the
structures, which disallows mounting the same fsid found on
different devices.
For a single device filesystem this is not strictly necessary, a
new temporary fsid can be generated on mount e.g. after a device is
cloned. This will be used by Steam Deck for root partition A/B
testing, or can be used for VM root images.
Other user visible changes:
- filesystems with partially finished metadata_uuid conversion cannot
be mounted anymore and the uuid fixup has to be done by btrfs-progs
(btrfstune).
Performance improvements:
- reduce reservations for checksum deletions (with enabled free space
tree by factor of 4), on a sample workload on file with many
extents the deletion time decreased by 12%
- make extent state merges more efficient during insertions, reduce
rb-tree iterations (run time of critical functions reduced by 5%)
Core changes:
- the integrity check functionality has been removed, this was a
debugging feature and removal does not affect other integrity
checks like checksums or tree-checker
- space reservation changes:
- more efficient delayed ref reservations, this avoids building up
too much work or overusing or exhausting the global block
reserve in some situations
- move delayed refs reservation to the transaction start time,
this prevents some ENOSPC corner cases related to exhaustion of
global reserve
- improvements in reducing excessive reservations for block group
items
- adjust overcommit logic in near full situations, account for one
more chunk to eventually allocate metadata chunk, this is mostly
relevant for small filesystems (<10GiB)
- single device filesystems are scanned but not registered (except
seed devices), this allows temp_fsid to work
- qgroup iterations do not need GFP_ATOMIC allocations anymore
- cleanups, refactoring, reduced data structure size, function
parameter simplifications, error handling fixes"
* tag 'for-6.7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (156 commits)
btrfs: open code timespec64 in struct btrfs_inode
btrfs: remove redundant log root tree index assignment during log sync
btrfs: remove redundant initialization of variable dirty in btrfs_update_time()
btrfs: sysfs: show temp_fsid feature
btrfs: disable the device add feature for temp-fsid
btrfs: disable the seed feature for temp-fsid
btrfs: update comment for temp-fsid, fsid, and metadata_uuid
btrfs: remove pointless empty log context list check when syncing log
btrfs: update comment for struct btrfs_inode::lock
btrfs: remove pointless barrier from btrfs_sync_file()
btrfs: add and use helpers for reading and writing last_trans_committed
btrfs: add and use helpers for reading and writing fs_info->generation
btrfs: add and use helpers for reading and writing log_transid
btrfs: add and use helpers for reading and writing last_log_commit
btrfs: support cloned-device mount capability
btrfs: add helper function find_fsid_by_disk
btrfs: stop reserving excessive space for block group item insertions
btrfs: stop reserving excessive space for block group item updates
btrfs: reorder btrfs_inode to fill gaps
btrfs: open code btrfs_ordered_inode_tree in btrfs_inode
...
|
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|
Linus Torvalds
|
8829687a4a |
fscrypt updates for 6.7
This update adds support for configuring the crypto data unit size (i.e. the granularity of file contents encryption) to be less than the filesystem block size. This can allow users to use inline encryption hardware in some cases when it wouldn't otherwise be possible. In addition, there are two commits that are prerequisites for the extent-based encryption support that the btrfs folks are working on. -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQSacvsUNc7UX4ntmEPzXCl4vpKOKwUCZT8acBQcZWJpZ2dlcnNA Z29vZ2xlLmNvbQAKCRDzXCl4vpKOK+czAQDkStgX1ICJQANnxwbrg/SUVdZjPuFH sJw3sUVpBR81TwEA/SyWh3YzVNZdpE7PWNrCknrC+qnO8hd9QBEjnQfwIQc= =t44a -----END PGP SIGNATURE----- Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux Pull fscrypt updates from Eric Biggers: "This update adds support for configuring the crypto data unit size (i.e. the granularity of file contents encryption) to be less than the filesystem block size. This can allow users to use inline encryption hardware in some cases when it wouldn't otherwise be possible. In addition, there are two commits that are prerequisites for the extent-based encryption support that the btrfs folks are working on" * tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux: fscrypt: track master key presence separately from secret fscrypt: rename fscrypt_info => fscrypt_inode_info fscrypt: support crypto data unit size less than filesystem block size fscrypt: replace get_ino_and_lblk_bits with just has_32bit_inodes fscrypt: compute max_lblk_bits from s_maxbytes and block size fscrypt: make the bounce page pool opt-in instead of opt-out fscrypt: make it clearer that key_prefix is deprecated |
||
|
Linus Torvalds
|
8b16da681e |
NFSD 6.7 Release Notes
This release completes the SunRPC thread scheduler work that was begun in v6.6. The scheduler can now find an svc thread to wake in constant time and without a list walk. Thanks again to Neil Brown for this overhaul. Lorenzo Bianconi contributed infrastructure for a netlink-based NFSD control plane. The long-term plan is to provide the same functionality as found in /proc/fs/nfsd, plus some interesting additions, and then migrate the NFSD user space utilities to netlink. A long series to overhaul NFSD's NFSv4 operation encoding was applied in this release. The goals are to bring this family of encoding functions in line with the matching NFSv4 decoding functions and with the NFSv2 and NFSv3 XDR functions, preparing the way for better memory safety and maintainability. A further improvement to NFSD's write delegation support was contributed by Dai Ngo. This adds a CB_GETATTR callback, enabling the server to retrieve cached size and mtime data from clients holding write delegations. If the server can retrieve this information, it does not have to recall the delegation in some cases. The usual panoply of bug fixes and minor improvements round out this release. As always I am grateful to all contributors, reviewers, and testers. -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEKLLlsBKG3yQ88j7+M2qzM29mf5cFAmU5IuoACgkQM2qzM29m f5eVsg//bVp8S93ci/oDlKfzOwH2fO5e5rna91wrDpJxkd51h6KTx55dSRG5sjAZ EywIVOann6xCtsixAPyff5Cweg2dWvzQRsy1ZnvWQ1qZBzD5KAJY5LPkeSFUCKBo Zani/qTOYbxzgFMjZx+yDSXDPKG68WYZBQK59SI7mURu4SYdk8aRyNY8mjHfr0Vh Aqrcny4oVtXV4sL5P5G/2FUW7WKT3olA3jSYlRRNMhbs2qpEemRCCrspOEMMad+b t1+ZCg+U27PMranvOJnof4RU7peZbaxDWA0gyiUbivVXVtZn9uOs0ffhktkvechL ePc33dqdp2ITdKIPA6JlaRv5WflKXQw0YYM9Kv5mcR4A2el7owL4f/pMlPhtbYwJ IOJv15KdKVN979G2e6WMYiKK+iHfaUUguhMEXnfnGoAajHOZNQiUEo3iFQAD7LDc DvMF8d9QqYmB9IW8FOYaRRfZGJOQHf3TL79Nd08z/bn5swvlvfj77leux9Sb+0/m Luk2Xvz2AJVSXE31wzabaGHkizN+BtH+e4MMbXUHBPW5jE9v7XOnEUFr4UdZyr9P Gl87A7NcrzNjJWT5TrnzM4sOslNsx46Aeg+VuNt2fSRn2dm6iBu2B8s0N4imx6dV PX1y9VSLq5WRhjrFZ1qeiZdsuTaQtrEiNDoRIQR6nCJPAV80iFk= =B4wJ -----END PGP SIGNATURE----- Merge tag 'nfsd-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux Pull nfsd updates from Chuck Lever: "This release completes the SunRPC thread scheduler work that was begun in v6.6. The scheduler can now find an svc thread to wake in constant time and without a list walk. Thanks again to Neil Brown for this overhaul. Lorenzo Bianconi contributed infrastructure for a netlink-based NFSD control plane. The long-term plan is to provide the same functionality as found in /proc/fs/nfsd, plus some interesting additions, and then migrate the NFSD user space utilities to netlink. A long series to overhaul NFSD's NFSv4 operation encoding was applied in this release. The goals are to bring this family of encoding functions in line with the matching NFSv4 decoding functions and with the NFSv2 and NFSv3 XDR functions, preparing the way for better memory safety and maintainability. A further improvement to NFSD's write delegation support was contributed by Dai Ngo. This adds a CB_GETATTR callback, enabling the server to retrieve cached size and mtime data from clients holding write delegations. If the server can retrieve this information, it does not have to recall the delegation in some cases. The usual panoply of bug fixes and minor improvements round out this release. As always I am grateful to all contributors, reviewers, and testers" * tag 'nfsd-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (127 commits) svcrdma: Fix tracepoint printk format svcrdma: Drop connection after an RDMA Read error NFSD: clean up alloc_init_deleg() NFSD: Fix frame size warning in svc_export_parse() NFSD: Rewrite synopsis of nfsd_percpu_counters_init() nfsd: Clean up errors in nfs3proc.c nfsd: Clean up errors in nfs4state.c NFSD: Clean up errors in stats.c NFSD: simplify error paths in nfsd_svc() NFSD: Clean up nfsd4_encode_seek() NFSD: Clean up nfsd4_encode_offset_status() NFSD: Clean up nfsd4_encode_copy_notify() NFSD: Clean up nfsd4_encode_copy() NFSD: Clean up nfsd4_encode_test_stateid() NFSD: Clean up nfsd4_encode_exchange_id() NFSD: Clean up nfsd4_do_encode_secinfo() NFSD: Clean up nfsd4_encode_access() NFSD: Clean up nfsd4_encode_readdir() NFSD: Clean up nfsd4_encode_entry4() NFSD: Add an nfsd4_encode_nfs_cookie4() helper ... |
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Linus Torvalds
|
14ab6d425e |
vfs-6.7.ctime
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZTppYgAKCRCRxhvAZXjc okIHAP9anLz1QDyMLH12ASuHjgBc0Of3jcB6NB97IWGpL4O21gEA46ohaD+vcJuC YkBLU3lXqQ87nfu28ExFAzh10hG2jwM= =m4pB -----END PGP SIGNATURE----- Merge tag 'vfs-6.7.ctime' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs Pull vfs inode time accessor updates from Christian Brauner: "This finishes the conversion of all inode time fields to accessor functions as discussed on list. Changing timestamps manually as we used to do before is error prone. Using accessors function makes this robust. It does not contain the switch of the time fields to discrete 64 bit integers to replace struct timespec and free up space in struct inode. But after this, the switch can be trivially made and the patch should only affect the vfs if we decide to do it" * tag 'vfs-6.7.ctime' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs: (86 commits) fs: rename inode i_atime and i_mtime fields security: convert to new timestamp accessors selinux: convert to new timestamp accessors apparmor: convert to new timestamp accessors sunrpc: convert to new timestamp accessors mm: convert to new timestamp accessors bpf: convert to new timestamp accessors ipc: convert to new timestamp accessors linux: convert to new timestamp accessors zonefs: convert to new timestamp accessors xfs: convert to new timestamp accessors vboxsf: convert to new timestamp accessors ufs: convert to new timestamp accessors udf: convert to new timestamp accessors ubifs: convert to new timestamp accessors tracefs: convert to new timestamp accessors sysv: convert to new timestamp accessors squashfs: convert to new timestamp accessors server: convert to new timestamp accessors client: convert to new timestamp accessors ... |
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Linus Torvalds
|
7352a6765c |
vfs-6.7.xattr
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZTppWAAKCRCRxhvAZXjc okB2AP4jjoRErJBwj245OIDJqzoj4m4UVOVd0MH2AkiSpANczwD/TToChdpusY2y qAYg1fQoGMbDVlb7Txaj9qI9ieCf9w0= =2PXg -----END PGP SIGNATURE----- Merge tag 'vfs-6.7.xattr' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs Pull vfs xattr updates from Christian Brauner: "The 's_xattr' field of 'struct super_block' currently requires a mutable table of 'struct xattr_handler' entries (although each handler itself is const). However, no code in vfs actually modifies the tables. This changes the type of 's_xattr' to allow const tables, and modifies existing file systems to move their tables to .rodata. This is desirable because these tables contain entries with function pointers in them; moving them to .rodata makes it considerably less likely to be modified accidentally or maliciously at runtime" * tag 'vfs-6.7.xattr' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs: (30 commits) const_structs.checkpatch: add xattr_handler net: move sockfs_xattr_handlers to .rodata shmem: move shmem_xattr_handlers to .rodata overlayfs: move xattr tables to .rodata xfs: move xfs_xattr_handlers to .rodata ubifs: move ubifs_xattr_handlers to .rodata squashfs: move squashfs_xattr_handlers to .rodata smb: move cifs_xattr_handlers to .rodata reiserfs: move reiserfs_xattr_handlers to .rodata orangefs: move orangefs_xattr_handlers to .rodata ocfs2: move ocfs2_xattr_handlers and ocfs2_xattr_handler_map to .rodata ntfs3: move ntfs_xattr_handlers to .rodata nfs: move nfs4_xattr_handlers to .rodata kernfs: move kernfs_xattr_handlers to .rodata jfs: move jfs_xattr_handlers to .rodata jffs2: move jffs2_xattr_handlers to .rodata hfsplus: move hfsplus_xattr_handlers to .rodata hfs: move hfs_xattr_handlers to .rodata gfs2: move gfs2_xattr_handlers_max to .rodata fuse: move fuse_xattr_handlers to .rodata ... |
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Linus Torvalds
|
df9c65b5fc |
vfs-6.7.iov_iter
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Merge tag 'vfs-6.7.iov_iter' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs
Pull iov_iter updates from Christian Brauner:
"This contain's David's iov_iter cleanup work to convert the iov_iter
iteration macros to inline functions:
- Remove last_offset from iov_iter as it was only used by ITER_PIPE
- Add a __user tag on copy_mc_to_user()'s dst argument on x86 to
match that on powerpc and get rid of a sparse warning
- Convert iter->user_backed to user_backed_iter() in the sound PCM
driver
- Convert iter->user_backed to user_backed_iter() in a couple of
infiniband drivers
- Renumber the type enum so that the ITER_* constants match the order
in iterate_and_advance*()
- Since the preceding patch puts UBUF and IOVEC at 0 and 1, change
user_backed_iter() to just use the type value and get rid of the
extra flag
- Convert the iov_iter iteration macros to always-inline functions to
make the code easier to follow. It uses function pointers, but they
get optimised away
- Move the check for ->copy_mc to _copy_from_iter() and
copy_page_from_iter_atomic() rather than in memcpy_from_iter_mc()
where it gets repeated for every segment. Instead, we check once
and invoke a side function that can use iterate_bvec() rather than
iterate_and_advance() and supply a different step function
- Move the copy-and-csum code to net/ where it can be in proximity
with the code that uses it
- Fold memcpy_and_csum() in to its two users
- Move csum_and_copy_from_iter_full() out of line and merge in
csum_and_copy_from_iter() since the former is the only caller of
the latter
- Move hash_and_copy_to_iter() to net/ where it can be with its only
caller"
* tag 'vfs-6.7.iov_iter' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs:
iov_iter, net: Move hash_and_copy_to_iter() to net/
iov_iter, net: Merge csum_and_copy_from_iter{,_full}() together
iov_iter, net: Fold in csum_and_memcpy()
iov_iter, net: Move csum_and_copy_to/from_iter() to net/
iov_iter: Don't deal with iter->copy_mc in memcpy_from_iter_mc()
iov_iter: Convert iterate*() to inline funcs
iov_iter: Derive user-backedness from the iterator type
iov_iter: Renumber ITER_* constants
infiniband: Use user_backed_iter() to see if iterator is UBUF/IOVEC
sound: Fix snd_pcm_readv()/writev() to use iov access functions
iov_iter, x86: Be consistent about the __user tag on copy_mc_to_user()
iov_iter: Remove last_offset from iov_iter as it was for ITER_PIPE
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||
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Linus Torvalds
|
3b3f874cc1 |
vfs-6.7.misc
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Merge tag 'vfs-6.7.misc' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner:
"This contains the usual miscellaneous features, cleanups, and fixes
for vfs and individual fses.
Features:
- Rename and export helpers that get write access to a mount. They
are used in overlayfs to get write access to the upper mount.
- Print the pretty name of the root device on boot failure. This
helps in scenarios where we would usually only print
"unknown-block(1,2)".
- Add an internal SB_I_NOUMASK flag. This is another part in the
endless POSIX ACL saga in a way.
When POSIX ACLs are enabled via SB_POSIXACL the vfs cannot strip
the umask because if the relevant inode has POSIX ACLs set it might
take the umask from there. But if the inode doesn't have any POSIX
ACLs set then we apply the umask in the filesytem itself. So we end
up with:
(1) no SB_POSIXACL -> strip umask in vfs
(2) SB_POSIXACL -> strip umask in filesystem
The umask semantics associated with SB_POSIXACL allowed filesystems
that don't even support POSIX ACLs at all to raise SB_POSIXACL
purely to avoid umask stripping. That specifically means NFS v4 and
Overlayfs. NFS v4 does it because it delegates this to the server
and Overlayfs because it needs to delegate umask stripping to the
upper filesystem, i.e., the filesystem used as the writable layer.
This went so far that SB_POSIXACL is raised eve on kernels that
don't even have POSIX ACL support at all.
Stop this blatant abuse and add SB_I_NOUMASK which is an internal
superblock flag that filesystems can raise to opt out of umask
handling. That should really only be the two mentioned above. It's
not that we want any filesystems to do this. Ideally we have all
umask handling always in the vfs.
- Make overlayfs use SB_I_NOUMASK too.
- Now that we have SB_I_NOUMASK, stop checking for SB_POSIXACL in
IS_POSIXACL() if the kernel doesn't have support for it. This is a
very old patch but it's only possible to do this now with the wider
cleanup that was done.
- Follow-up work on fake path handling from last cycle. Citing mostly
from Amir:
When overlayfs was first merged, overlayfs files of regular files
and directories, the ones that are installed in file table, had a
"fake" path, namely, f_path is the overlayfs path and f_inode is
the "real" inode on the underlying filesystem.
In v6.5, we took another small step by introducing of the
backing_file container and the file_real_path() helper. This change
allowed vfs and filesystem code to get the "real" path of an
overlayfs backing file. With this change, we were able to make
fsnotify work correctly and report events on the "real" filesystem
objects that were accessed via overlayfs.
This method works fine, but it still leaves the vfs vulnerable to
new code that is not aware of files with fake path. A recent
example is commit
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Linus Torvalds
|
0d63d8b229 |
vfs-6.7.autofs
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZTppJgAKCRCRxhvAZXjc omYoAQD+g3BxYbxEdEuhrnbaZMljp2GEYn+L6I2txdvmp/TpSQEAsQipcEgMC1WI uc9IDiakYWWCSaN8F7BGR7zKsK5feAc= =V+jp -----END PGP SIGNATURE----- Merge tag 'vfs-6.7.autofs' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs Pull autofs mount api updates from Christian Brauner: "This ports autofs to the new mount api. The patchset has existed for quite a while but never made it upstream. Ian picked it back up. This also fixes a bug where fs_param_is_fd() was passed a garbage param->dirfd but it expected it to be set to the fd that was used to set param->file otherwise result->uint_32 contains nonsense. So make sure it's set. One less filesystem using the old mount api. We're getting there, albeit rather slow. The last remaining major filesystem that hasn't converted is btrfs. Patches exist - I even wrote them - but so far they haven't made it upstream" * tag 'vfs-6.7.autofs' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs: autofs: fix add autofs_parse_fd() fsconfig: ensure that dirfd is set to aux autofs: fix protocol sub version setting autofs: convert autofs to use the new mount api autofs: validate protocol version autofs: refactor parse_options() autofs: reformat 0pt enum declaration autofs: refactor super block info init autofs: add autofs_parse_fd() autofs: refactor autofs_prepare_pipe() |
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Linus Torvalds
|
d4e175f2c4 |
vfs-6.7.super
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZT0C2gAKCRCRxhvAZXjc otV8AQCK5F9ONoQ7ISpdrKyUJiswySGXx0CYPfXbSg5gHH87zgEAua3vwVKeGXXF 5iVsdiNzIIQDwGDx7FyxufL4ggcN6gQ= =E1kV -----END PGP SIGNATURE----- Merge tag 'vfs-6.7.super' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs Pull vfs superblock updates from Christian Brauner: "This contains the work to make block device opening functions return a struct bdev_handle instead of just a struct block_device. The same struct bdev_handle is then also passed to block device closing functions. This allows us to propagate context from opening to closing a block device without having to modify all users everytime. Sidenote, in the future we might even want to try and have block device opening functions return a struct file directly but that's a series on top of this. These are further preparatory changes to be able to count writable opens and blocking writes to mounted block devices. That's a separate piece of work for next cycle and for that we absolutely need the changes to btrfs that have been quietly dropped somehow. Originally the series contained a patch that removed the old blkdev_*() helpers. But since this would've caused needles churn in -next for bcachefs we ended up delaying it. The second piece of work addresses one of the major annoyances about the work last cycle, namely that we required dropping s_umount whenever we used the superblock and fs_holder_ops for a block device. The reason for that requirement had been that in some codepaths s_umount could've been taken under disk->open_mutex (that's always been the case, at least theoretically). For example, on surprise block device removal or media change. And opening and closing block devices required grabbing disk->open_mutex as well. So we did the work and went through the block layer and fixed all those places so that s_umount is never taken under disk->open_mutex. This means no more brittle games where we yield and reacquire s_umount during block device opening and closing and no more requirements where block devices need to be closed. Filesystems don't need to care about this. There's a bunch of other follow-up work such as moving block device freezing and thawing to holder operations which makes it work for all block devices and not just the main block device just as we did for surprise removal. But that is for next cycle. Tested with fstests for all major fses, blktests, LTP" * tag 'vfs-6.7.super' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs: (37 commits) porting: update locking requirements fs: assert that open_mutex isn't held over holder ops block: assert that we're not holding open_mutex over blk_report_disk_dead block: move bdev_mark_dead out of disk_check_media_change block: WARN_ON_ONCE() when we remove active partitions block: simplify bdev_del_partition() fs: Avoid grabbing sb->s_umount under bdev->bd_holder_lock jfs: fix log->bdev_handle null ptr deref in lbmStartIO bcache: Fixup error handling in register_cache() xfs: Convert to bdev_open_by_path() reiserfs: Convert to bdev_open_by_dev/path() ocfs2: Convert to use bdev_open_by_dev() nfs/blocklayout: Convert to use bdev_open_by_dev/path() jfs: Convert to bdev_open_by_dev() f2fs: Convert to bdev_open_by_dev/path() ext4: Convert to bdev_open_by_dev() erofs: Convert to use bdev_open_by_path() btrfs: Convert to bdev_open_by_path() fs: Convert to bdev_open_by_dev() mm/swap: Convert to use bdev_open_by_dev() ... |
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Linus Torvalds
|
ffc253263a | Linux 6.6 | ||
|
Linus Torvalds
|
2af9b20dbb |
Misc fixes:
- Fix a possible CPU hotplug deadlock bug caused by the new
TSC synchronization code.
- Fix a legacy PIC discovery bug that results in device troubles on
affected systems, such as non-working keybards, etc.
- Add a new Intel CPU model number to <asm/intel-family.h>.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc x86 fixes from Ingo Molnar:
- Fix a possible CPU hotplug deadlock bug caused by the new TSC
synchronization code
- Fix a legacy PIC discovery bug that results in device troubles on
affected systems, such as non-working keybards, etc
- Add a new Intel CPU model number to <asm/intel-family.h>
* tag 'x86-urgent-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/tsc: Defer marking TSC unstable to a worker
x86/i8259: Skip probing when ACPI/MADT advertises PCAT compatibility
x86/cpu: Add model number for Intel Arrow Lake mobile processor
|
||
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Linus Torvalds
|
e663ab6bb5 |
Restore unintentionally lost quirk settings in the GIC irqchip driver,
which broke certain devices. Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmU9CZsRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1i1VQ//Sb0gT+Okqoqco7GZfpD/RcJO5yfr+xRd 1XfI1S+3EbiPnJ+h7kuVD2lopZx3MjxtZWTgio9Rl1lJGTu345WoV1P0r+dsf8Hy Yj7pAby8hPmzG89Bx37Qr2+s34pkykUps19bu7u/BO/gO/bHmEaGMljg74x0H8QE vky9V8BG1Uo9PuZeAiXJn1fnEtYKv9w2SGL61Y70yAdog8Lkvyxaar3xGKbkyXVC Io2k+aZlX+6Xk4eljDaHHtrxA13WDfwSFki8KOR5Ec8NA8iVc6+fNKbwSHtIqIf0 7F4WnPqQSbBSVlhVamu4EICqZr5aQ0MN9Tkv/o41APIPO/ClsoRwPy6NnXbCq3Vy 4qH/JcquYiaL6GiY3bta47wEwX7Z0l/gvuUU/Pjh3MlobNwW0I8aTIQ+y0XPz/Ku vcrXtHw6BToZFceyWYEKREBcONF4Uds8Bxsb6rMhxfVF47MnagMl4B4uJio7nS+B Lta34Yjw69fVmwZAL/zWMT//rgu7QmI5SxkUZ2RwkLk+rOpx77roqd8nlmcFWmi2 LMWB0wjrmy8gwm4HNQusYVoXVOjtGIUlzPlPS9PHwC3oYBND8n8YzWfNu4HV1eWz BYlDpyliE2dG62zsggNgJPVUBLWSAo8O5bXWQYV9PDcVnOxUXuoQ5uN3qP+3iHVD apdDrbheD28= =ETNN -----END PGP SIGNATURE----- Merge tag 'irq-urgent-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fix from Ingo Molnar: "Restore unintentionally lost quirk settings in the GIC irqchip driver, which broke certain devices" * tag 'irq-urgent-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/gic-v3-its: Don't override quirk settings with default values |
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Linus Torvalds
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4714de0332 |
Fix a potential NULL dereference bug.
Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmU839YRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1isRg//S7E94bSvBE1uaclhehlro/V8t8qXiO2y RIvxCR16tornBWHYg49vVlZDGMVC5kf0O/6/b3p2VOwpZ+m9qp/4v5ImhYIhl1SI M2UFJ6pjy+ykbUR98WjuePXTNy6nEntJ8uYt+PxnGrApNG0DTnKbL03deimX/e2Z tOEYBh8iaHNx0AhuoWkLOXAbIFlwUeYVXZM1X5/3AS8AKcNYWzUkkyKWE4u6AY68 E7uokwo+Z+rdSWIk+8mqALnf2IeIWl0ecyaA7P/wCf6ei3Yyys/H3N6qjwq0Yq2g gT2urQCBkPrYvkz3YS7i+P7hSe7cf6nPoTz+pN0oCEKT7cEenQTd+EtDnmpmPjxJ X7zTnag/l268cWudFS54DaZeUGOPx/AIG+k0RbN0w1XcDCg8DVTIB/MB0rTMeWPp y3lZMeU8ott+pHHjVUtDU7ERDWFf+EWpuPP8o9lq6oQV3W31l0XL3uL16mRvZtLB gWlR7DovFW+y6I9ISs3k18pQOKU8B4foyAbvlS5n4wmKZMn7ygryw3Tcg77mUZTK /xYdGQ5ZR6PDnqrn8uy0KeIIbtFkcxEKWanZzjjs49p820GvXvtOmLeirUqi8oc1 c2mYqJH5T7U3KQUeG1JgytZuRpa/ph8GWw4LsS+4QLOAEXqU1x7dJYtvJMWj1bcx vpI9MHwKkck= =FjJZ -----END PGP SIGNATURE----- Merge tag 'perf-urgent-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf event fix from Ingo Molnar: "Fix a potential NULL dereference bug" * tag 'perf-urgent-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/core: Fix potential NULL deref |
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Linus Torvalds
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51a7691038 |
Probes fixes for v6.6-rc7:
- tracing/kprobes: Fix kernel-doc warnings for the variable length arguments. - tracing/kprobes: Fix to count the symbols in modules even if the module name is not specified so that user can probe the symbols in the modules without module name. -----BEGIN PGP SIGNATURE----- iQFPBAABCgA5FiEEh7BulGwFlgAOi5DV2/sHvwUrPxsFAmU82MUbHG1hc2FtaS5o aXJhbWF0c3VAZ21haWwuY29tAAoJENv7B78FKz8bMZ0H+wZHWVUsmqGLGNCt3gfi m2EJX83VMwY8PzpwZ5ezrx4ibAcUyo7Dhh8OniGgEazC3BNeggoUu/HwpirS22gI Tx0EMlgLOJQykauiUe6FPem0IbrlbQMI1gLplx6cVd8lgIYZQfMIM5gI0kuCywT3 Ka9sCgp6y3UKQNtHKFwtPRLYFTF3Afyy2C01wdsa800SEqeOAeTD9+8yz7ZnuFt+ bNgu6vJGFfJHkEkvYCwFFqZ1eIfXON6lUFpijNpCGvMN2h1XArLexSk8JRBf6j2+ 8+1FrRQsTXRk3G6v9uQABeK7z5W2F8gufmSFyBlXajbZp2HT6j4s2S86u5lP9P9J l1U= =etyx -----END PGP SIGNATURE----- Merge tag 'probes-fixes-v6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull probes fixes from Masami Hiramatsu: - tracing/kprobes: Fix kernel-doc warnings for the variable length arguments - tracing/kprobes: Fix to count the symbols in modules even if the module name is not specified so that user can probe the symbols in the modules without module name * tag 'probes-fixes-v6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tracing/kprobes: Fix symbol counting logic by looking at modules as well tracing/kprobes: Fix the description of variable length arguments |
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Linus Torvalds
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bd80d2ef59 |
dma-mapping fix for Linux 6.6
- reduce the initialy dynamic swiotlb size to remove an annoying but
harmless warning from the page allocator (Petr Tesarik)
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Merge tag 'dma-mapping-6.6-2023-10-28' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping fix from Christoph Hellwig:
- reduce the initialy dynamic swiotlb size to remove an annoying but
harmless warning from the page allocator (Petr Tesarik)
* tag 'dma-mapping-6.6-2023-10-28' of git://git.infradead.org/users/hch/dma-mapping:
swiotlb: do not try to allocate a TLB bigger than MAX_ORDER pages
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Linus Torvalds
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db5cda7fd4 |
Char/Misc driver fixes for 6.6-final
Here are some very small driver fixes for 6.6-final that have shown up in the past 2 weeks. Included in here are: - tiny fastrpc bugfixes for reported errors - nvmem register fixes - iio driver fixes for some reported problems - fpga test fix - MAINTAINERS file update for fpga All of these have been in linux-next this week with no reported problems. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCZTy13A8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ykHzACdHeaGvszwWwcjHX0SmZBRNbHoj80AnRaM0RP0 SpAvYj7k79XtxOH0KTe0 =y5Zi -----END PGP SIGNATURE----- Merge tag 'char-misc-6.6-final' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are some very small driver fixes for 6.6-final that have shown up in the past two weeks. Included in here are: - tiny fastrpc bugfixes for reported errors - nvmem register fixes - iio driver fixes for some reported problems - fpga test fix - MAINTAINERS file update for fpga All of these have been in linux-next this week with no reported problems" * tag 'char-misc-6.6-final' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: fpga: Fix memory leak for fpga_region_test_class_find() fpga: m10bmc-sec: Change contact for secure update driver fpga: disable KUnit test suites when module support is enabled iio: afe: rescale: Accept only offset channels nvmem: imx: correct nregs for i.MX6ULL nvmem: imx: correct nregs for i.MX6UL nvmem: imx: correct nregs for i.MX6SLL misc: fastrpc: Unmap only if buffer is unmapped from DSP misc: fastrpc: Clean buffers on remote invocation failures misc: fastrpc: Free DMA handles for RPC calls with no arguments misc: fastrpc: Reset metadata buffer to avoid incorrect free iio: exynos-adc: request second interupt only when touchscreen mode is used iio: adc: xilinx-xadc: Correct temperature offset/scale for UltraScale iio: adc: xilinx-xadc: Don't clobber preset voltage/temperature thresholds dt-bindings: iio: add missing reset-gpios constrain |
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Linus Torvalds
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8907bfd2b1 |
Bugfixes for Axxia when it is a target and for PEC handling of stm32f7.
Plus, fixing an of node leak pattern in the mux subsystem. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmU8qEIACgkQFA3kzBSg Kba5Sg//UAZYYdy1UsnXm1CpaPDiuZ4vDbJNlkSl1gkU/qBQCUJgb+RgOt7yqJxN NwgpuO5bmN/9lcMhHsCSdd9iL4CiqpC0lUPMWqZ1bfJoygHhyk4Re/nQeT8S783F vRQNHxt6XJSC9MchwByujJ+cj1lmnXOSqOgr7wW4UQ7TMhSFAqszgYT+9eFUC+87 v4ZBsj1UNOaEGpq5fIWdSFWL0VjK+BPx1GCfG16c7qKWXt1jLSfIoVCAz4v92ldt DQLv8z/lnl+Fkx5xAJ7BI661fCjb8mxCbeD/vgqJV0w5+h6UEtxODUOonyJniUBB 3TnWYnYGV4NCJHxybfP5B273R1fNrE+THRx2qKXdZYn6gR/+u8cecpSARFDS3dD1 oyhyItbdW4d7ewsh8MFyO4MBOTGk6TswQyQjzo8GNjJts4NeiDur/EbCOvLqj4+5 15af+ltsuhWY9/SWcdpJC7Wcdm26PCUqsunwnSg0g7xfnWinjwvEeVEGT9bEKPXO lRKlV/8Iw29h+oRVaFjAENzUEkia2XPo4trdkTUTjflHMvZ4SEBP9lqQO7fBKxdb 4zoYhhWcE+rhqhEa+W5u0YEsXPBvpxuvxg9XNOYSswYmqQEO4kPpCdGFJFCbOr98 8Zzkt6NZGUcDegtXbTYnrrGhfEO7n7gC0wZfKEq9gOhc1iG8u6I= =bIWp -----END PGP SIGNATURE----- Merge tag 'i2c-for-6.6-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "Bugfixes for Axxia when it is a target and for PEC handling of stm32f7. Plus, fix an OF node leak pattern in the mux subsystem" * tag 'i2c-for-6.6-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: stm32f7: Fix PEC handling in case of SMBUS transfers i2c: muxes: i2c-mux-gpmux: Use of_get_i2c_adapter_by_node() i2c: muxes: i2c-demux-pinctrl: Use of_get_i2c_adapter_by_node() i2c: muxes: i2c-mux-pinctrl: Use of_get_i2c_adapter_by_node() i2c: aspeed: Fix i2c bus hang in slave read |
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Christian Brauner
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5aa9130acb
|
porting: update locking requirements
Now that s_umount is never taken under open_mutex update the documentation to say so. Link: https://lore.kernel.org/r/20231017184823.1383356-1-hch@lst.de Signed-off-by: Christian Brauner <brauner@kernel.org> |
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Christian Brauner
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3b224e1df6
|
fs: assert that open_mutex isn't held over holder ops
With recent block level changes we should never be in a situation where we hold disk->open_mutex when calling into these helpers. So assert that in the code. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20231017184823.1383356-6-hch@lst.de Reviewed-by: Ming Lei <ming.lei@redhat.com> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Christian Brauner <brauner@kernel.org> |
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Christian Brauner
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f61033390b
|
block: assert that we're not holding open_mutex over blk_report_disk_dead
blk_report_disk_dead() has the following major callers: (1) del_gendisk() (2) blk_mark_disk_dead() Since del_gendisk() acquires disk->open_mutex it's clear that all callers are assumed to be called without disk->open_mutex held. In turn, blk_report_disk_dead() is called without disk->open_mutex held in del_gendisk(). All callers of blk_mark_disk_dead() call it without disk->open_mutex as well. Ensure that it is clear that blk_report_disk_dead() is called without disk->open_mutex on purpose by asserting it and a comment in the code. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20231017184823.1383356-5-hch@lst.de Reviewed-by: Ming Lei <ming.lei@redhat.com> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Christian Brauner <brauner@kernel.org> |
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Christoph Hellwig
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6e57236ed6
|
block: move bdev_mark_dead out of disk_check_media_change
disk_check_media_change is mostly called from ->open where it makes little sense to mark the file system on the device as dead, as we are just opening it. So instead of calling bdev_mark_dead from disk_check_media_change move it into the few callers that are not in an open instance. This avoid calling into bdev_mark_dead and thus taking s_umount with open_mutex held. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20231017184823.1383356-4-hch@lst.de Reviewed-by: Ming Lei <ming.lei@redhat.com> Reviewed-by: Christian Brauner <brauner@kernel.org> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Christian Brauner <brauner@kernel.org> |
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Christian Brauner
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51b4cb4f3e
|
block: WARN_ON_ONCE() when we remove active partitions
The logic for disk->open_partitions is:
blkdev_get_by_*()
-> bdev_is_partition()
-> blkdev_get_part()
-> blkdev_get_whole() // bdev_whole->bd_openers++
-> if (part->bd_openers == 0)
disk->open_partitions++
part->bd_openers
In other words, when we first claim/open a partition we increment
disk->open_partitions and only when all part->bd_openers are closed will
disk->open_partitions be zero. That should mean that
disk->open_partitions is always > 0 as long as there's anyone that
has an open partition.
So the check for disk->open_partitions should mean that we can never
remove an active partition that has a holder and holder ops set. Assert
that in the code. The main disk isn't removed so that check doesn't work
for disk->part0 which is what we want. After all we only care about
partition not about the main disk.
Link: https://lore.kernel.org/r/20231017184823.1383356-3-hch@lst.de
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Christian Brauner
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c30b9787a4
|
block: simplify bdev_del_partition()
BLKPG_DEL_PARTITION refuses to delete partitions that still have openers, i.e., that has an elevated @bdev->bd_openers count. If a device is claimed by setting @bdev->bd_holder and @bdev->bd_holder_ops @bdev->bd_openers and @bdev->bd_holders are incremented. @bdev->bd_openers is effectively guaranteed to be >= @bdev->bd_holders. So as long as @bdev->bd_openers isn't zero we know that this partition is still in active use and that there might still be @bdev->bd_holder and @bdev->bd_holder_ops set. The only current example is @fs_holder_ops for filesystems. But that means bdev_mark_dead() which calls into bdev->bd_holder_ops->mark_dead::fs_bdev_mark_dead() is a nop. As long as there's an elevated @bdev->bd_openers count we can't delete the partition and if there isn't an elevated @bdev->bd_openers count then there's no @bdev->bd_holder or @bdev->bd_holder_ops. So simply open-code what we need to do. This gets rid of one more instance where we acquire s_umount under @disk->open_mutex. Link: https://lore.kernel.org/r/20231016-fototermin-umriss-59f1ea6c1fe6@brauner Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20231017184823.1383356-2-hch@lst.de Reviewed-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Christian Brauner <brauner@kernel.org> |
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Jan Kara
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fd1464105c
|
fs: Avoid grabbing sb->s_umount under bdev->bd_holder_lock
The implementation of bdev holder operations such as fs_bdev_mark_dead() and fs_bdev_sync() grab sb->s_umount semaphore under bdev->bd_holder_lock. This is problematic because it leads to disk->open_mutex -> sb->s_umount lock ordering which is counterintuitive (usually we grab higher level (e.g. filesystem) locks first and lower level (e.g. block layer) locks later) and indeed makes lockdep complain about possible locking cycles whenever we open a block device while holding sb->s_umount semaphore. Implement a function bdev_super_lock_shared() which safely transitions from holding bdev->bd_holder_lock to holding sb->s_umount on alive superblock without introducing the problematic lock dependency. We use this function fs_bdev_sync() and fs_bdev_mark_dead(). Signed-off-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20231018152924.3858-1-jack@suse.cz Link: https://lore.kernel.org/r/20231017184823.1383356-1-hch@lst.de Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christian Brauner <brauner@kernel.org> |
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Lizhi Xu
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6306ff39a7
|
jfs: fix log->bdev_handle null ptr deref in lbmStartIO
When sbi->flag is JFS_NOINTEGRITY in lmLogOpen(), log->bdev_handle can't be inited, so it value will be NULL. Therefore, add the "log ->no_integrity=1" judgment in lbmStartIO() to avoid such problems. Reported-and-tested-by: syzbot+23bc20037854bb335d59@syzkaller.appspotmail.com Signed-off-by: Lizhi Xu <lizhi.xu@windriver.com> Link: https://lore.kernel.org/r/20231009094557.1398920-1-lizhi.xu@windriver.com Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Christian Brauner <brauner@kernel.org> |
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Jan Kara
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b3856da790
|
bcache: Fixup error handling in register_cache()
Coverity has noticed that the printing of error message in
register_cache() uses already freed bdev_handle to get to bdev. In fact
the problem has been there even before commit "bcache: Convert to
bdev_open_by_path()" just a bit more subtle one - cache object itself
could have been freed by the time we looked at ca->bdev and we don't
hold any reference to bdev either so even that could in principle go
away (due to device unplug or similar). Fix all these problems by
printing the error message before closing the bdev.
Fixes: dc893f51d24a ("bcache: Convert to bdev_open_by_path()")
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20231004093757.11560-1-jack@suse.cz
Asked-by: Coly Li <colyli@suse.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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