Commit Graph

1295543 Commits

Author SHA1 Message Date
Linus Torvalds
e0fac5fc8b three client fixes, including two for stable
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Merge tag 'v6.11-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:

 - fix for clang warning - additional null check

 - fix for cached write with posix locks

 - flexible structure fix

* tag 'v6.11-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  smb: smb2pdu.h: Use static_assert() to check struct sizes
  smb3: fix lock breakage for cached writes
  smb/client: avoid possible NULL dereference in cifs_free_subrequest()
2024-08-17 16:31:12 -07:00
Linus Torvalds
98a1b2d71f i2c-for-6.11-rc4
I2C core needs to fix a fix from rc3 by replacing IS_ENABLED() with
 IS_REACHABLE().
 
 For host drivers, there are two fixes in this update:
 
 Tegra I2C Controller: Addresses a potential double-locking issue
 during probe. ACPI devices are not IRQ-safe when invoking runtime
 suspend and resume functions, so the irq_safe flag should not be
 set.
 
 Qualcomm GENI I2C Controller: Fixes an oversight in the exit path
 of the runtime_resume() function, which was missed in the
 previous release.
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Merge tag 'i2c-for-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "I2C core fix replacing IS_ENABLED() with IS_REACHABLE()

  For host drivers, there are two fixes:

   - Tegra I2C Controller: Addresses a potential double-locking issue
     during probe. ACPI devices are not IRQ-safe when invoking runtime
     suspend and resume functions, so the irq_safe flag should not be
     set.

   - Qualcomm GENI I2C Controller: Fixes an oversight in the exit path
     of the runtime_resume() function, which was missed in the previous
     release"

* tag 'i2c-for-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: tegra: Do not mark ACPI devices as irq safe
  i2c: Use IS_REACHABLE() for substituting empty ACPI functions
  i2c: qcom-geni: Add missing geni_icc_disable in geni_i2c_runtime_resume
2024-08-17 16:23:05 -07:00
Linus Torvalds
df6cbc62cc SCSI fixes on 20240817
Two small fixes to the mpi3mr driver.  One to avoid oversize
 allocations in tracing and the other to fix an uninitialized spinlock
 in the user to driver feature request code (used to trigger dumps and
 the like).
 
 Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Two small fixes to the mpi3mr driver. One to avoid oversize
  allocations in tracing and the other to fix an uninitialized spinlock
  in the user to driver feature request code (used to trigger dumps and
  the like)"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: mpi3mr: Avoid MAX_PAGE_ORDER WARNING for buffer allocations
  scsi: mpi3mr: Add missing spin_lock_init() for mrioc->trigger_lock
2024-08-17 10:04:01 -07:00
Linus Torvalds
d09840f8b3 Bug fixes for 6.11-rc4:
* Check for presence of only 'attr' feature before scrubbing an inode's
     attribute fork.
   * Restore the behaviour of setting AIL thread to TASK_INTERRUPTIBLE for
     long (i.e. 50ms) sleep durations to prevent high load averages.
   * Do not allow users to change the realtime flag of a file unless the
     datadev and rtdev both support fsdax access modes.
 
 Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
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Merge tag 'xfs-6.11-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs fixes from Chandan Babu:

 - Check for presence of only 'attr' feature before scrubbing an inode's
   attribute fork.

 - Restore the behaviour of setting AIL thread to TASK_INTERRUPTIBLE for
   long (i.e. 50ms) sleep durations to prevent high load averages.

 - Do not allow users to change the realtime flag of a file unless the
   datadev and rtdev both support fsdax access modes.

* tag 'xfs-6.11-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: conditionally allow FS_XFLAG_REALTIME changes if S_DAX is set
  xfs: revert AIL TASK_KILLABLE threshold
  xfs: attr forks require attr, not attr2
2024-08-17 09:51:28 -07:00
Linus Torvalds
b718175853 bcachefs fixes for 6.11-rc4
- New on disk format version, bcachefs_metadata_version_disk_accounting_inum
 
 This adds one more disk accounting counter, which counts disk usage and
 number of extents per inode number. This lets us track fragmentation,
 for implementing defragmentation later, and it also counts disk usage
 per inode in all snapshots, which will be a useful thing to expose to
 users.
 
 - One performance issue we've observed is threads spinning when they
 should be waiting for dirty keys in the key cache to be flushed by
 journal reclaim, so we now have hysteresis for the waiting thread, as
 well as improving the tracepoint and a new time_stat, for tracking time
 blocked waiting on key cache flushing.
 
 And, various assorted smaller fixes.
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Merge tag 'bcachefs-2024-08-16' of git://evilpiepirate.org/bcachefs

Pull bcachefs fixes from Kent OverstreetL

 - New on disk format version, bcachefs_metadata_version_disk_accounting_inum

   This adds one more disk accounting counter, which counts disk usage
   and number of extents per inode number. This lets us track
   fragmentation, for implementing defragmentation later, and it also
   counts disk usage per inode in all snapshots, which will be a useful
   thing to expose to users.

 - One performance issue we've observed is threads spinning when they
   should be waiting for dirty keys in the key cache to be flushed by
   journal reclaim, so we now have hysteresis for the waiting thread, as
   well as improving the tracepoint and a new time_stat, for tracking
   time blocked waiting on key cache flushing.

... and various assorted smaller fixes.

* tag 'bcachefs-2024-08-16' of git://evilpiepirate.org/bcachefs:
  bcachefs: Fix locking in __bch2_trans_mark_dev_sb()
  bcachefs: fix incorrect i_state usage
  bcachefs: avoid overflowing LRU_TIME_BITS for cached data lru
  bcachefs: Fix forgetting to pass trans to fsck_err()
  bcachefs: Increase size of cuckoo hash table on too many rehashes
  bcachefs: bcachefs_metadata_version_disk_accounting_inum
  bcachefs: Kill __bch2_accounting_mem_mod()
  bcachefs: Make bkey_fsck_err() a wrapper around fsck_err()
  bcachefs: Fix warning in __bch2_fsck_err() for trans not passed in
  bcachefs: Add a time_stat for blocked on key cache flush
  bcachefs: Improve trans_blocked_journal_reclaim tracepoint
  bcachefs: Add hysteresis to waiting on btree key cache flush
  lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc()
  bcachefs: Convert for_each_btree_node() to lockrestart_do()
  bcachefs: Add missing downgrade table entry
  bcachefs: disk accounting: ignore unknown types
  bcachefs: bch2_accounting_invalid() fixup
  bcachefs: Fix bch2_trigger_alloc when upgrading from old versions
  bcachefs: delete faulty fastpath in bch2_btree_path_traverse_cached()
2024-08-17 09:46:10 -07:00
Kent Overstreet
0e49d3ff12 bcachefs: Fix locking in __bch2_trans_mark_dev_sb()
We run this in full RW mode now, so we have to guard against the
superblock buffer being reallocated.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-16 20:45:15 -04:00
Linus Torvalds
e5fa841af6 memcg_write_event_control() oops fix
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Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull memcg-v1 fix from Al Viro:
 "memcg_write_event_control() oops fix"

* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  memcg_write_event_control(): fix a user-triggerable oops
2024-08-16 17:08:02 -07:00
Linus Torvalds
c2cdb13a34 arm64 fixes:
- Fix the arm64 __get_mem_asm() to use the _ASM_EXTABLE_##type##ACCESS()
   macro instead of the *_ERR() one in order to avoid writing -EFAULT to
   the value register in case of a fault
 
 - Initialise all elements of the acpi_early_node_map[] to NUMA_NO_NODE.
   Prior to this fix, only the first element was initialised
 
 - Move the KASAN random tag seed initialisation after the per-CPU areas
   have been initialised (prng_state is __percpu)
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

 - Fix the arm64 __get_mem_asm() to use the _ASM_EXTABLE_##type##ACCESS()
   macro instead of the *_ERR() one in order to avoid writing -EFAULT to
   the value register in case of a fault

 - Initialise all elements of the acpi_early_node_map[] to NUMA_NO_NODE.
   Prior to this fix, only the first element was initialised

 - Move the KASAN random tag seed initialisation after the per-CPU areas
   have been initialised (prng_state is __percpu)

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: Fix KASAN random tag seed initialization
  arm64: ACPI: NUMA: initialize all values of acpi_early_node_map to NUMA_NO_NODE
  arm64: uaccess: correct thinko in __get_mem_asm()
2024-08-16 17:02:32 -07:00
Linus Torvalds
216595b708 One fix for the new T-Head TH1520 clk driver that marks a bus clk
critical so that it isn't turned off during late init which breaks
 emmc-sdio.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk fix from Stephen Boyd:
 "One fix for the new T-Head TH1520 clk driver that marks a bus clk
  critical so that it isn't turned off during late init which breaks
  emmc-sdio"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: thead: fix dependency on clk_ignore_unused
2024-08-16 16:59:05 -07:00
Linus Torvalds
85652baa89 block-6.11-20240824
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Merge tag 'block-6.11-20240824' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

 - Fix corruption issues with s390/dasd (Eric, Stefan)

 - Fix a misuse of non irq locking grab of a lock (Li)

 - MD pull request with a single data corruption fix for raid1 (Yu)

* tag 'block-6.11-20240824' of git://git.kernel.dk/linux:
  block: Fix lockdep warning in blk_mq_mark_tag_wait
  md/raid1: Fix data corruption for degraded array with slow disk
  s390/dasd: fix error recovery leading to data corruption on ESE devices
  s390/dasd: Remove DMA alignment
2024-08-16 14:03:31 -07:00
Linus Torvalds
c5ac744cdd io_uring-6.11-20240824
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Merge tag 'io_uring-6.11-20240824' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - Fix a comment in the uapi header using the wrong member name (Caleb)

 - Fix KCSAN warning for a debug check in sqpoll (me)

 - Two more NAPI tweaks (Olivier)

* tag 'io_uring-6.11-20240824' of git://git.kernel.dk/linux:
  io_uring: fix user_data field name in comment
  io_uring/sqpoll: annotate debug task == current with data_race()
  io_uring/napi: remove duplicate io_napi_entry timeout assignation
  io_uring/napi: check napi_enabled in io_napi_add() before proceeding
2024-08-16 14:00:05 -07:00
Linus Torvalds
2731835f3f Devicetree fixes for v6.11, part 2:
- Fix a possible (but unlikely) out-of-bounds read in interrupts parsing
   code
 
 - Add AT25 EEPROM "fujitsu,mb85rs256" compatible
 
 - Update Konrad Dybcio's email
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Merge tag 'devicetree-fixes-for-6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Fix a possible (but unlikely) out-of-bounds read in interrupts
   parsing code

 - Add AT25 EEPROM "fujitsu,mb85rs256" compatible

 - Update Konrad Dybcio's email

* tag 'devicetree-fixes-for-6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of/irq: Prevent device address out-of-bounds read in interrupt map walk
  dt-bindings: eeprom: at25: add fujitsu,mb85rs256 compatible
  dt-bindings: Batch-update Konrad Dybcio's email
2024-08-16 13:50:33 -07:00
Qu Wenruo
534f7eff92 btrfs: only enable extent map shrinker for DEBUG builds
Although there are several patches improving the extent map shrinker,
there are still reports of too frequent shrinker behavior, taking too
much CPU for the kswapd process.

So let's only enable extent shrinker for now, until we got more
comprehensive understanding and a better solution.

Link: https://lore.kernel.org/linux-btrfs/3df4acd616a07ef4d2dc6bad668701504b412ffc.camel@intelfx.name/
Link: https://lore.kernel.org/linux-btrfs/c30fd6b3-ca7a-4759-8a53-d42878bf84f7@gmail.com/
Fixes: 956a17d9d0 ("btrfs: add a shrinker for extent maps")
CC: stable@vger.kernel.org # 6.10+
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2024-08-16 21:22:39 +02:00
Linus Torvalds
296c871d29 Thermal control fix for 6.11-rc4
Fix a Bang-bang thermal governor issue causing it to fail to reset the
 state of cooling devices if they are "on" to start with, but the thermal
 zone temperature is always below the corresponding trip point (Rafael
 Wysocki).
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Merge tag 'thermal-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control fix from Rafael Wysocki:
 "Fix a Bang-bang thermal governor issue causing it to fail to reset the
  state of cooling devices if they are 'on' to start with, but the
  thermal zone temperature is always below the corresponding trip point
  (Rafael Wysocki)"

* tag 'thermal-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: gov_bang_bang: Use governor_data to reduce overhead
  thermal: gov_bang_bang: Add .manage() callback
  thermal: gov_bang_bang: Split bang_bang_control()
  thermal: gov_bang_bang: Call __thermal_cdev_update() directly
2024-08-16 11:49:07 -07:00
Linus Torvalds
64ab5e4039 ACPI fix for 6.11-rc4
Fix an issue related to the ACPI EC device handling that causes the
 _REG control method to be evaluated for EC operation regions that are
 not expected to be used which confuses the platform firmware and
 provokes various types of misbehavior on some systems (Rafael Wysocki).
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Merge tag 'acpi-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "Fix an issue related to the ACPI EC device handling that causes the
  _REG control method to be evaluated for EC operation regions that are
  not expected to be used.

  This confuses the platform firmware and provokes various types of
  misbehavior on some systems (Rafael Wysocki)"

* tag 'acpi-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: EC: Evaluate _REG outside the EC scope more carefully
  ACPICA: Add a depth argument to acpi_execute_reg_methods()
  Revert "ACPI: EC: Evaluate orphan _REG under EC device"
2024-08-16 11:43:54 -07:00
Linus Torvalds
e4a55b555d libnvdimm fixes for v6.11-rc4
Commit f467fee48d ("block: move the dax flag to queue_limits") broke
 the DAX tests by skipping over the legacy pmem mapping pages case.
 
 	- Set the DAX flag in this case as well.
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Merge tag 'libnvdimm-fixes-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Pull libnvdimm fix from Ira Weiny:
 "Commit f467fee48d ("block: move the dax flag to queue_limits") broke
  the DAX tests by skipping over the legacy pmem mapping pages case.

  Set the DAX flag in this case as well"

* tag 'libnvdimm-fixes-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  nvdimm/pmem: Set dax flag for all 'PFN_MAP' cases
2024-08-16 11:36:40 -07:00
Caleb Sander Mateos
1fc2ac428e io_uring: fix user_data field name in comment
io_uring_cqe's user_data field refers to `sqe->data`, but io_uring_sqe
does not have a data field. Fix the comment to say `sqe->user_data`.

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Link: https://github.com/axboe/liburing/pull/1206
Link: https://lore.kernel.org/r/20240816181526.3642732-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-08-16 12:31:26 -06:00
Linus Torvalds
60cb1da6ed Rust fixes for v6.11
- Fix '-Os' Rust 1.80.0+ builds adding more intrinsics (also tweaked
    in upstream Rust for the upcoming 1.82.0).
 
  - Fix support for the latest version of rust-analyzer due to a change
    on rust-analyzer config file semantics (considered a fix since most
    developers use the latest version of the tool, which is the only one
    actually supported by upstream). I am discussing stability of the
    config file with upstream -- they may be able to start versioning it.
 
  - Fix GCC 14 builds due to '-fmin-function-alignment' not skipped for
    libclang (bindgen).
 
  - A couple Kconfig fixes around '{RUSTC,BINDGEN}_VERSION_TEXT' to
    suppress error messages in a foreign architecture chroot and to use a
    proper default format.
 
  - Clean 'rust-analyzer' target warning due to missing recursive make
    invocation mark.
 
  - Clean Clippy warning due to missing indentation in docs.
 
  - Clean LLVM 19 build warning due to removed 3dnow feature upstream.
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Merge tag 'rust-fixes-6.11' of https://github.com/Rust-for-Linux/linux

Pull rust fixes from Miguel Ojeda:

 - Fix '-Os' Rust 1.80.0+ builds adding more intrinsics (also tweaked in
   upstream Rust for the upcoming 1.82.0).

 - Fix support for the latest version of rust-analyzer due to a change
   on rust-analyzer config file semantics (considered a fix since most
   developers use the latest version of the tool, which is the only one
   actually supported by upstream). I am discussing stability of the
   config file with upstream -- they may be able to start versioning it.

 - Fix GCC 14 builds due to '-fmin-function-alignment' not skipped for
   libclang (bindgen).

 - A couple Kconfig fixes around '{RUSTC,BINDGEN}_VERSION_TEXT' to
   suppress error messages in a foreign architecture chroot and to use a
   proper default format.

 - Clean 'rust-analyzer' target warning due to missing recursive make
   invocation mark.

 - Clean Clippy warning due to missing indentation in docs.

 - Clean LLVM 19 build warning due to removed 3dnow feature upstream.

* tag 'rust-fixes-6.11' of https://github.com/Rust-for-Linux/linux:
  rust: x86: remove `-3dnow{,a}` from target features
  kbuild: rust-analyzer: mark `rust_is_available.sh` invocation as recursive
  rust: add intrinsics to fix `-Os` builds
  kbuild: rust: skip -fmin-function-alignment in bindgen flags
  rust: Support latest version of `rust-analyzer`
  rust: macros: indent list item in `module!`'s docs
  rust: fix the default format for CONFIG_{RUSTC,BINDGEN}_VERSION_TEXT
  rust: suppress error messages from CONFIG_{RUSTC,BINDGEN}_VERSION_TEXT
2024-08-16 11:24:06 -07:00
Linus Torvalds
5b179fe052 RISC-V Fixes for 6.11-rc4
* The text patching global icache flush has been reintroduced.
 * A fix for the syscall entry code to correctly initialize a0, which
   manifests as a bug in strace.
 * XIP kernels now map the entire kernel, which fixes boot under at least
   DEBUG_VIRTUAL=y.
 * The acpi_early_node_map initializer now initializes all nodes.
 * A fix for a OOB access in the Andes vendor extension probing code.
 * A new key for scalar misaligned access performance in hwprobe, which
   correctly treat the values as an enum (as opposed to a bitmap).
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Merge tag 'riscv-for-linus-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - reintroduce the text patching global icache flush

 - fix syscall entry code to correctly initialize a0, which manifested
   as a strace bug

 - XIP kernels now map the entire kernel, which fixes boot under at
   least DEBUG_VIRTUAL=y

 - initialize all nodes in the acpi_early_node_map initializer

 - fix OOB access in the Andes vendor extension probing code

 - A new key for scalar misaligned access performance in hwprobe, which
   correctly treat the values as an enum (as opposed to a bitmap)

* tag 'riscv-for-linus-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: Fix out-of-bounds when accessing Andes per hart vendor extension array
  RISC-V: hwprobe: Add SCALAR to misaligned perf defines
  RISC-V: hwprobe: Add MISALIGNED_PERF key
  RISC-V: ACPI: NUMA: initialize all values of acpi_early_node_map to NUMA_NO_NODE
  riscv: change XIP's kernel_map.size to be size of the entire kernel
  riscv: entry: always initialize regs->a0 to -ENOSYS
  riscv: Re-introduce global icache flush in patch_text_XXX()
2024-08-16 11:18:09 -07:00
Linus Torvalds
4a621e2910 A couple of fixes for tracing:
- Prevent a NULL pointer dereference in the error path of RTLA tool
 
 - Fix an infinite loop bug when reading from the ring buffer when closed.
   If there's a thread trying to read the ring buffer and it gets closed
   by another thread, the one reading will go into an infinite loop
   when the buffer is empty instead of exiting back to user space.
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Merge tag 'trace-v6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing fixes from Steven Rostedt:
 "A couple of fixes for tracing:

   - Prevent a NULL pointer dereference in the error path of RTLA tool

   - Fix an infinite loop bug when reading from the ring buffer when
     closed. If there's a thread trying to read the ring buffer and it
     gets closed by another thread, the one reading will go into an
     infinite loop when the buffer is empty instead of exiting back to
     user space"

* tag 'trace-v6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  rtla/osnoise: Prevent NULL dereference in error handling
  tracing: Return from tracing_buffers_read() if the file has been closed
2024-08-16 11:12:29 -07:00
Linus Torvalds
1486141ad8 Hi,
Contains two bug fixes for a memory corruption bug and a memory leak bug
 in the DCP trusted keys type. Just as a remainder DCP was a crypto
 coprocessor in i.MX SoC's.
 
 BR, Jarkko
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Merge tag 'keys-trusted-next-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd

Pull key fixes from Jarkko Sakkinen:
 "Two bug fixes for a memory corruption bug and a memory leak bug in the
  DCP trusted keys type.

  Just as a reminder DCP was a crypto coprocessor in i.MX SoCs"

* tag 'keys-trusted-next-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  KEYS: trusted: dcp: fix leak of blob encryption key
  KEYS: trusted: fix DCP blob payload length assignment
2024-08-16 11:05:25 -07:00
Kent Overstreet
99c87fe0f5 bcachefs: fix incorrect i_state usage
Reported-by: syzbot+95e40eae71609e40d851@syzkaller.appspotmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-16 12:46:40 -04:00
Kent Overstreet
9482f3b053 bcachefs: avoid overflowing LRU_TIME_BITS for cached data lru
Reported-by: syzbot+510b0b28f8e6de64d307@syzkaller.appspotmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-16 12:46:40 -04:00
Kent Overstreet
075cabf324 bcachefs: Fix forgetting to pass trans to fsck_err()
Reported-by: syzbot+e3938cd6d761b78750e6@syzkaller.appspotmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-16 12:46:40 -04:00
Kent Overstreet
c2f6e16a67 bcachefs: Increase size of cuckoo hash table on too many rehashes
Also, improve the calculation of the new table size, so that it can
shrink when needed.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-08-16 12:46:40 -04:00
Linus Torvalds
670c12ce09 - fix misbehavior if suspend or resume is interrupted by a signal
- fix wrong indentation in dm-crypt.rst
 
 - fix memory allocation failure in dm-persistent-data
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Merge tag 'for-6.11/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mikulas Patocka:

 - fix misbehavior if suspend or resume is interrupted by a signal

 - fix wrong indentation in dm-crypt.rst

 - fix memory allocation failure in dm-persistent-data

* tag 'for-6.11/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm persistent data: fix memory allocation failure
  Documentation: dm-crypt.rst warning + error fix
  dm resume: don't return EINVAL when signalled
  dm suspend: return -ERESTARTSYS instead of -EINTR
2024-08-16 09:07:34 -07:00
Linus Torvalds
de53959e00 IOMMU Fixes for Linux v6.11-rc3
Including:
 
 	- Bring back a lost return statement in io-page-fault code
 
 	- Remove an unused function declaration
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Merge tag 'iommu-fixes-v6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux

Pull iommu fixes from Joerg Roedel:

 - Bring back a lost return statement in io-page-fault code

 - Remove an unused function declaration

* tag 'iommu-fixes-v6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux:
  iommu: Remove unused declaration iommu_sva_unbind_gpasid()
  iommu: Restore lost return in iommu_report_device_fault()
2024-08-16 08:56:45 -07:00
Linus Torvalds
9bd40f824a gpio fixes for v6.11-rc4
- add the shutdown() callback to gpio-mlxbf3 in order to disable
   interrupts during graceful reboot
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Merge tag 'gpio-fixes-for-v6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio fix from Bartosz Golaszewski:

 - add the shutdown() callback to gpio-mlxbf3 in order to disable
   interrupts during graceful reboot

* tag 'gpio-fixes-for-v6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio: mlxbf3: Support shutdown() function
2024-08-16 08:47:50 -07:00
Linus Torvalds
d58c542a33 sound fixes for 6.11-rc4
All small fixes, mostly for usual suspects, HD-audio and USB-audio
 device-specific fixes / quirks.  The Cirrus codec support took the
 update of SPI header as well.  Other than that, there is a regression
 fix in the sanity check of ALSA timer code.
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Merge tag 'sound-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "All small fixes, mostly for usual suspects, HD-audio and USB-audio
  device-specific fixes / quirks. The Cirrus codec support took the
  update of SPI header as well. Other than that, there is a regression
  fix in the sanity check of ALSA timer code"

* tag 'sound-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/tas2781: Use correct endian conversion
  ALSA: usb-audio: Support Yamaha P-125 quirk entry
  ALSA: hda: cs35l41: Remove redundant call to hda_cs_dsp_control_remove()
  ALSA: hda: cs35l56: Remove redundant call to hda_cs_dsp_control_remove()
  ALSA: hda/tas2781: fix wrong calibrated data order
  ALSA: usb-audio: Add delay quirk for VIVO USB-C-XE710 HEADSET
  ALSA: hda/realtek: Add support for new HP G12 laptops
  ALSA: hda/realtek: Fix noise from speakers on Lenovo IdeaPad 3 15IAU7
  ALSA: timer: Relax start tick time check for slave timer elements
  spi: Add empty versions of ACPI functions
2024-08-16 08:39:41 -07:00
Linus Torvalds
37b20e9a58 drm fixes for 6.11-rc4
mediatek:
 - fix cursor crash
 
 amdgpu:
 - Fix MES ring buffer overflow
 - DCN 3.5 fix
 - DCN 3.2.1 fix
 - DP MST fix
 - Cursor fixes
 - JPEG fixes
 - Context ops validation
 - MES 12 fixes
 - VCN 5.0 fix
 - HDP fix
 
 panel:
 - dt bindings style fix
 - orientation quirks
 
 rockchip:
 - inno-hdmi: fix infoframe upload
 
 v3d:
 - fix OOB access in v3d_csd_job_run()
 
 xe:
 - Validate user fence during creation
 - Fix use after free when client stats are captured
 - SRIOV fixes
 - Runtime PM fixes
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Merge tag 'drm-fixes-2024-08-16' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Weekly drm fixes, mostly amdgpu and xe. The larger amdgpu fix is for a
  new IP block introduced in rc1, so should be fine. The xe fixes
  contain some missed fixes from the end of the previous round along
  with some fixes which required precursor changes, but otherwise
  everything seems fine,

  mediatek:
   - fix cursor crash

  amdgpu:
   - Fix MES ring buffer overflow
   - DCN 3.5 fix
   - DCN 3.2.1 fix
   - DP MST fix
   - Cursor fixes
   - JPEG fixes
   - Context ops validation
   - MES 12 fixes
   - VCN 5.0 fix
   - HDP fix

  panel:
   - dt bindings style fix
   - orientation quirks

  rockchip:
   - inno-hdmi: fix infoframe upload

  v3d:
   - fix OOB access in v3d_csd_job_run()

  xe:
   - Validate user fence during creation
   - Fix use after free when client stats are captured
   - SRIOV fixes
   - Runtime PM fixes"

* tag 'drm-fixes-2024-08-16' of https://gitlab.freedesktop.org/drm/kernel: (37 commits)
  drm/xe: Hold a PM ref when GT TLB invalidations are inflight
  drm/xe: Drop xe_gt_tlb_invalidation_wait
  drm/xe: Add xe_gt_tlb_invalidation_fence_init helper
  drm/xe/pf: Fix VF config validation on multi-GT platforms
  drm/xe: Build PM into GuC CT layer
  drm/xe/vf: Fix register value lookup
  drm/xe: Fix use after free when client stats are captured
  drm/xe: Take a ref to xe file when user creates a VM
  drm/xe: Add ref counting for xe_file
  drm/xe: Move part of xe_file cleanup to a helper
  drm/xe: Validate user fence during creation
  drm/rockchip: inno-hdmi: Fix infoframe upload
  drm/amd/amdgpu: add HDP_SD support on gc 12.0.0/1
  drm/amdgpu: Update kmd_fw_shared for VCN5
  drm/amd/amdgpu: command submission parser for JPEG
  drm/amdgpu/mes12: fix suspend issue
  drm/amdgpu/mes12: sw/hw fini for unified mes
  drm/amdgpu/mes12: configure two pipes hardware resources
  drm/amdgpu/mes12: adjust mes12 sw/hw init for multiple pipes
  drm/amdgpu/mes12: add mes pipe switch support
  ...
2024-08-16 08:35:50 -07:00
Wolfram Sang
87cea48495 Two fixes in this update:
Tegra I2C Controller: Addresses a potential double-locking issue
 during probe. ACPI devices are not IRQ-safe when invoking runtime
 suspend and resume functions, so the irq_safe flag should not be
 set.
 
 Qualcomm GENI I2C Controller: Fixes an oversight in the exit path
 of the runtime_resume() function, which was missed in the
 previous release.
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Merge tag 'i2c-host-fixes-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-current

Two fixes in this update:

Tegra I2C Controller: Addresses a potential double-locking issue
during probe. ACPI devices are not IRQ-safe when invoking runtime
suspend and resume functions, so the irq_safe flag should not be
set.

Qualcomm GENI I2C Controller: Fixes an oversight in the exit path
of the runtime_resume() function, which was missed in the
previous release.
2024-08-16 16:23:51 +02:00
Rafael J. Wysocki
6e6f58a170 thermal: gov_bang_bang: Use governor_data to reduce overhead
After running once, the for_each_trip_desc() loop in
bang_bang_manage() is pure needless overhead because it is not going to
make any changes unless a new cooling device has been bound to one of
the trips in the thermal zone or the system is resuming from sleep.

For this reason, make bang_bang_manage() set governor_data for the
thermal zone and check it upfront to decide whether or not it needs to
do anything.

However, governor_data needs to be reset in some cases to let
bang_bang_manage() know that it should walk the trips again, so add an
.update_tz() callback to the governor and make the core additionally
invoke it during system resume.

To avoid affecting the other users of that callback unnecessarily, add
a special notification reason for system resume, THERMAL_TZ_RESUME, and
also pass it to __thermal_zone_device_update() called during system
resume for consistency.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Peter Kästle <peter@piie.net>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Cc: 6.10+ <stable@vger.kernel.org> # 6.10+
Link: https://patch.msgid.link/2285575.iZASKD2KPV@rjwysocki.net
2024-08-16 13:13:59 +02:00
Rafael J. Wysocki
5f64b4a1ab thermal: gov_bang_bang: Add .manage() callback
After recent changes, the Bang-bang governor may not adjust the
initial configuration of cooling devices to the actual situation.

Namely, if a cooling device bound to a certain trip point starts in
the "on" state and the thermal zone temperature is below the threshold
of that trip point, the trip point may never be crossed on the way up
in which case the state of the cooling device will never be adjusted
because the thermal core will never invoke the governor's
.trip_crossed() callback.  [Note that there is no issue if the zone
temperature is at the trip threshold or above it to start with because
.trip_crossed() will be invoked then to indicate the start of thermal
mitigation for the given trip.]

To address this, add a .manage() callback to the Bang-bang governor
and use it to ensure that all of the thermal instances managed by the
governor have been initialized properly and the states of all of the
cooling devices involved have been adjusted to the current zone
temperature as appropriate.

Fixes: 530c932bdf ("thermal: gov_bang_bang: Use .trip_crossed() instead of .throttle()")
Link: https://lore.kernel.org/linux-pm/1bfbbae5-42b0-4c7d-9544-e98855715294@piie.net/
Cc: 6.10+ <stable@vger.kernel.org> # 6.10+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Peter Kästle <peter@piie.net>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Link: https://patch.msgid.link/8419356.T7Z3S40VBb@rjwysocki.net
2024-08-16 13:13:49 +02:00
Rafael J. Wysocki
84248e35d9 thermal: gov_bang_bang: Split bang_bang_control()
Move the setting of the thermal instance target state from
bang_bang_control() into a separate function that will be also called
in a different place going forward.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Peter Kästle <peter@piie.net>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Cc: 6.10+ <stable@vger.kernel.org> # 6.10+
Link: https://patch.msgid.link/3313587.aeNJFYEL58@rjwysocki.net
2024-08-16 13:13:42 +02:00
Rafael J. Wysocki
b9b6ee6fe2 thermal: gov_bang_bang: Call __thermal_cdev_update() directly
Instead of clearing the "updated" flag for each cooling device
affected by the trip point crossing in bang_bang_control() and
walking all thermal instances to run thermal_cdev_update() for all
of the affected cooling devices, call __thermal_cdev_update()
directly for each of them.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Peter Kästle <peter@piie.net>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Cc: 6.10+ <stable@vger.kernel.org> # 6.10+
Link: https://patch.msgid.link/13583081.uLZWGnKmhe@rjwysocki.net
2024-08-16 13:13:33 +02:00
Eli Billauer
2374bf7558 char: xillybus: Check USB endpoints when probing device
Ensure, as the driver probes the device, that all endpoints that the
driver may attempt to access exist and are of the correct type.

All XillyUSB devices must have a Bulk IN and Bulk OUT endpoint at
address 1. This is verified in xillyusb_setup_base_eps().

On top of that, a XillyUSB device may have additional Bulk OUT
endpoints. The information about these endpoints' addresses is deduced
from a data structure (the IDT) that the driver fetches from the device
while probing it. These endpoints are checked in setup_channels().

A XillyUSB device never has more than one IN endpoint, as all data
towards the host is multiplexed in this single Bulk IN endpoint. This is
why setup_channels() only checks OUT endpoints.

Reported-by: syzbot+eac39cba052f2e750dbe@syzkaller.appspotmail.com
Cc: stable <stable@kernel.org>
Closes: https://lore.kernel.org/all/0000000000001d44a6061f7a54ee@google.com/T/
Fixes: a53d1202ae ("char: xillybus: Add driver for XillyUSB (Xillybus variant for USB)").
Signed-off-by: Eli Billauer <eli.billauer@gmail.com>
Link: https://lore.kernel.org/r/20240816070200.50695-2-eli.billauer@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-08-16 09:57:56 +02:00
Eli Billauer
ad899c301c char: xillybus: Refine workqueue handling
As the wakeup work item now runs on a separate workqueue, it needs to be
flushed separately along with flushing the device's workqueue.

Also, move the destroy_workqueue() call to the end of the exit method,
so that deinitialization is done in the opposite order of
initialization.

Fixes: ccbde4b128 ("char: xillybus: Don't destroy workqueue from work item running on it")
Cc: stable <stable@kernel.org>
Signed-off-by: Eli Billauer <eli.billauer@gmail.com>
Link: https://lore.kernel.org/r/20240816070200.50695-1-eli.billauer@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-08-16 09:57:50 +02:00
Gao Xiang
2e6506e1c4 mm/migrate: fix deadlock in migrate_pages_batch() on large folios
Currently, migrate_pages_batch() can lock multiple locked folios with an
arbitrary order.  Although folio_trylock() is used to avoid deadlock as
commit 2ef7dbb269 ("migrate_pages: try migrate in batch asynchronously
firstly") mentioned, it seems try_split_folio() is still missing.

It was found by compaction stress test when I explicitly enable EROFS
compressed files to use large folios, which case I cannot reproduce with
the same workload if large folio support is off (current mainline). 
Typically, filesystem reads (with locked file-backed folios) could use
another bdev/meta inode to load some other I/Os (e.g.  inode extent
metadata or caching compressed data), so the locking order will be:

  file-backed folios  (A)
     bdev/meta folios (B)

The following calltrace shows the deadlock:
   Thread 1 takes (B) lock and tries to take folio (A) lock
   Thread 2 takes (A) lock and tries to take folio (B) lock

[Thread 1]
INFO: task stress:1824 blocked for more than 30 seconds.
      Tainted: G           OE      6.10.0-rc7+ #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:stress          state:D stack:0     pid:1824  tgid:1824  ppid:1822   flags:0x0000000c
Call trace:
 __switch_to+0xec/0x138
 __schedule+0x43c/0xcb0
 schedule+0x54/0x198
 io_schedule+0x44/0x70
 folio_wait_bit_common+0x184/0x3f8
			<-- folio mapping ffff00036d69cb18 index 996  (**)
 __folio_lock+0x24/0x38
 migrate_pages_batch+0x77c/0xea0	// try_split_folio (mm/migrate.c:1486:2)
					// migrate_pages_batch (mm/migrate.c:1734:16)
		<--- LIST_HEAD(unmap_folios) has
			..
			folio mapping 0xffff0000d184f1d8 index 1711;   (*)
			folio mapping 0xffff0000d184f1d8 index 1712;
			..
 migrate_pages+0xb28/0xe90
 compact_zone+0xa08/0x10f0
 compact_node+0x9c/0x180
 sysctl_compaction_handler+0x8c/0x118
 proc_sys_call_handler+0x1a8/0x280
 proc_sys_write+0x1c/0x30
 vfs_write+0x240/0x380
 ksys_write+0x78/0x118
 __arm64_sys_write+0x24/0x38
 invoke_syscall+0x78/0x108
 el0_svc_common.constprop.0+0x48/0xf0
 do_el0_svc+0x24/0x38
 el0_svc+0x3c/0x148
 el0t_64_sync_handler+0x100/0x130
 el0t_64_sync+0x190/0x198

[Thread 2]
INFO: task stress:1825 blocked for more than 30 seconds.
      Tainted: G           OE      6.10.0-rc7+ #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:stress          state:D stack:0     pid:1825  tgid:1825  ppid:1822   flags:0x0000000c
Call trace:
 __switch_to+0xec/0x138
 __schedule+0x43c/0xcb0
 schedule+0x54/0x198
 io_schedule+0x44/0x70
 folio_wait_bit_common+0x184/0x3f8
			<-- folio = 0xfffffdffc6b503c0 (mapping == 0xffff0000d184f1d8 index == 1711) (*)
 __folio_lock+0x24/0x38
 z_erofs_runqueue+0x384/0x9c0 [erofs]
 z_erofs_readahead+0x21c/0x350 [erofs]       <-- folio mapping 0xffff00036d69cb18 range from [992, 1024] (**)
 read_pages+0x74/0x328
 page_cache_ra_order+0x26c/0x348
 ondemand_readahead+0x1c0/0x3a0
 page_cache_sync_ra+0x9c/0xc0
 filemap_get_pages+0xc4/0x708
 filemap_read+0x104/0x3a8
 generic_file_read_iter+0x4c/0x150
 vfs_read+0x27c/0x330
 ksys_pread64+0x84/0xd0
 __arm64_sys_pread64+0x28/0x40
 invoke_syscall+0x78/0x108
 el0_svc_common.constprop.0+0x48/0xf0
 do_el0_svc+0x24/0x38
 el0_svc+0x3c/0x148
 el0t_64_sync_handler+0x100/0x130
 el0t_64_sync+0x190/0x198

Link: https://lkml.kernel.org/r/20240729021306.398286-1-hsiangkao@linux.alibaba.com
Fixes: 5dfab109d5 ("migrate_pages: batch _unmap and _move")
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: "Huang, Ying" <ying.huang@intel.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-08-15 22:26:02 -07:00
Suren Baghdasaryan
766c163c20 alloc_tag: mark pages reserved during CMA activation as not tagged
During CMA activation, pages in CMA area are prepared and then freed
without being allocated.  This triggers warnings when memory allocation
debug config (CONFIG_MEM_ALLOC_PROFILING_DEBUG) is enabled.  Fix this by
marking these pages not tagged before freeing them.

Link: https://lkml.kernel.org/r/20240813150758.855881-2-surenb@google.com
Fixes: d224eb0287 ("codetag: debug: mark codetags for reserved pages as empty")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Sourav Panda <souravpanda@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>	[6.10]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-08-15 22:16:16 -07:00
Suren Baghdasaryan
a8fc28dad6 alloc_tag: introduce clear_page_tag_ref() helper function
In several cases we are freeing pages which were not allocated using
common page allocators.  For such cases, in order to keep allocation
accounting correct, we should clear the page tag to indicate that the page
being freed is expected to not have a valid allocation tag.  Introduce
clear_page_tag_ref() helper function to be used for this.

Link: https://lkml.kernel.org/r/20240813150758.855881-1-surenb@google.com
Fixes: d224eb0287 ("codetag: debug: mark codetags for reserved pages as empty")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Suggested-by: David Hildenbrand <david@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Sourav Panda <souravpanda@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>	[6.10]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-08-15 22:16:16 -07:00
Jinjie Ruan
edb907a613 crash: fix riscv64 crash memory reserve dead loop
On RISCV64 Qemu machine with 512MB memory, cmdline "crashkernel=500M,high"
will cause system stall as below:

	 Zone ranges:
	   DMA32    [mem 0x0000000080000000-0x000000009fffffff]
	   Normal   empty
	 Movable zone start for each node
	 Early memory node ranges
	   node   0: [mem 0x0000000080000000-0x000000008005ffff]
	   node   0: [mem 0x0000000080060000-0x000000009fffffff]
	 Initmem setup node 0 [mem 0x0000000080000000-0x000000009fffffff]
	(stall here)

commit 5d99cadf1568 ("crash: fix x86_32 crash memory reserve dead loop
bug") fix this on 32-bit architecture.  However, the problem is not
completely solved.  If `CRASH_ADDR_LOW_MAX = CRASH_ADDR_HIGH_MAX` on
64-bit architecture, for example, when system memory is equal to
CRASH_ADDR_LOW_MAX on RISCV64, the following infinite loop will also
occur:

	-> reserve_crashkernel_generic() and high is true
	   -> alloc at [CRASH_ADDR_LOW_MAX, CRASH_ADDR_HIGH_MAX] fail
	      -> alloc at [0, CRASH_ADDR_LOW_MAX] fail and repeatedly
	         (because CRASH_ADDR_LOW_MAX = CRASH_ADDR_HIGH_MAX).

As Catalin suggested, do not remove the ",high" reservation fallback to
",low" logic which will change arm64's kdump behavior, but fix it by
skipping the above situation similar to commit d2f32f23190b ("crash: fix
x86_32 crash memory reserve dead loop").

After this patch, it print:
	cannot allocate crashkernel (size:0x1f400000)

Link: https://lkml.kernel.org/r/20240812062017.2674441-1-ruanjinjie@huawei.com
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Dave Young <dyoung@redhat.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-08-15 22:16:16 -07:00
Muhammad Usama Anjum
7c5e8d212d selftests: memfd_secret: don't build memfd_secret test on unsupported arches
[1] mentions that memfd_secret is only supported on arm64, riscv, x86 and
x86_64 for now.  It doesn't support other architectures.  I found the
build error on arm and decided to send the fix as it was creating noise on
KernelCI:

memfd_secret.c: In function 'memfd_secret':
memfd_secret.c:42:24: error: '__NR_memfd_secret' undeclared (first use in this function);
did you mean 'memfd_secret'?
   42 |         return syscall(__NR_memfd_secret, flags);
      |                        ^~~~~~~~~~~~~~~~~
      |                        memfd_secret

Hence I'm adding condition that memfd_secret should only be compiled on
supported architectures.

Also check in run_vmtests script if memfd_secret binary is present before
executing it.

Link: https://lkml.kernel.org/r/20240812061522.1933054-1-usama.anjum@collabora.com
Link: https://lore.kernel.org/all/20210518072034.31572-7-rppt@kernel.org/ [1]
Link: https://lkml.kernel.org/r/20240809075642.403247-1-usama.anjum@collabora.com
Fixes: 76fe17ef58 ("secretmem: test: add basic selftest for memfd_secret(2)")
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-08-15 22:16:15 -07:00
Kirill A. Shutemov
807174a93d mm: fix endless reclaim on machines with unaccepted memory
Unaccepted memory is considered unusable free memory, which is not counted
as free on the zone watermark check.  This causes get_page_from_freelist()
to accept more memory to hit the high watermark, but it creates problems
in the reclaim path.

The reclaim path encounters a failed zone watermark check and attempts to
reclaim memory.  This is usually successful, but if there is little or no
reclaimable memory, it can result in endless reclaim with little to no
progress.  This can occur early in the boot process, just after start of
the init process when the only reclaimable memory is the page cache of the
init executable and its libraries.

Make unaccepted memory free from watermark check point of view.  This way
unaccepted memory will never be the trigger of memory reclaim.  Accept
more memory in the get_page_from_freelist() if needed.

Link: https://lkml.kernel.org/r/20240809114854.3745464-2-kirill.shutemov@linux.intel.com
Fixes: dcdfdd40fa ("mm: Add support for unaccepted memory")
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Jianxiong Gao <jxgao@google.com>
Acked-by: David Hildenbrand <david@redhat.com>
Tested-by: Jianxiong Gao <jxgao@google.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>	[6.5+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-08-15 22:16:15 -07:00
Dan Carpenter
af3b7d09a9 selftests/mm: compaction_test: fix off by one in check_compaction()
The "initial_nr_hugepages" variable is unsigned long so it takes up to 20
characters to print, plus 1 more character for the NUL terminator. 
Unfortunately, this buffer is not quite large enough for the terminator to
fit.  Also use snprintf() for a belt and suspenders approach.

Link: https://lkml.kernel.org/r/87470c06-b45a-4e83-92ff-aac2e7b9c6ba@stanley.mountain
Fixes: fb9293b6b0 ("selftests/mm: compaction_test: fix bogus test success and reduce probability of OOM-killer invocation")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-08-15 22:16:15 -07:00
Zi Yan
fd8c35a929 mm/numa: no task_numa_fault() call if PMD is changed
When handling a numa page fault, task_numa_fault() should be called by a
process that restores the page table of the faulted folio to avoid
duplicated stats counting.  Commit c5b5a3dd2c ("mm: thp: refactor NUMA
fault handling") restructured do_huge_pmd_numa_page() and did not avoid
task_numa_fault() call in the second page table check after a numa
migration failure.  Fix it by making all !pmd_same() return immediately.

This issue can cause task_numa_fault() being called more than necessary
and lead to unexpected numa balancing results (It is hard to tell whether
the issue will cause positive or negative performance impact due to
duplicated numa fault counting).

Link: https://lkml.kernel.org/r/20240809145906.1513458-3-ziy@nvidia.com
Fixes: c5b5a3dd2c ("mm: thp: refactor NUMA fault handling")
Reported-by: "Huang, Ying" <ying.huang@intel.com>
Closes: https://lore.kernel.org/linux-mm/87zfqfw0yw.fsf@yhuang6-desk2.ccr.corp.intel.com/
Signed-off-by: Zi Yan <ziy@nvidia.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Yang Shi <shy828301@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-08-15 22:16:15 -07:00
Zi Yan
40b760cfd4 mm/numa: no task_numa_fault() call if PTE is changed
When handling a numa page fault, task_numa_fault() should be called by a
process that restores the page table of the faulted folio to avoid
duplicated stats counting.  Commit b99a342d4f ("NUMA balancing: reduce
TLB flush via delaying mapping on hint page fault") restructured
do_numa_page() and did not avoid task_numa_fault() call in the second page
table check after a numa migration failure.  Fix it by making all
!pte_same() return immediately.

This issue can cause task_numa_fault() being called more than necessary
and lead to unexpected numa balancing results (It is hard to tell whether
the issue will cause positive or negative performance impact due to
duplicated numa fault counting).

Link: https://lkml.kernel.org/r/20240809145906.1513458-2-ziy@nvidia.com
Fixes: b99a342d4f ("NUMA balancing: reduce TLB flush via delaying mapping on hint page fault")
Signed-off-by: Zi Yan <ziy@nvidia.com>
Reported-by: "Huang, Ying" <ying.huang@intel.com>
Closes: https://lore.kernel.org/linux-mm/87zfqfw0yw.fsf@yhuang6-desk2.ccr.corp.intel.com/
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Yang Shi <shy828301@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-08-15 22:16:15 -07:00
Hailong Liu
61ebe5a747 mm/vmalloc: fix page mapping if vm_area_alloc_pages() with high order fallback to order 0
The __vmap_pages_range_noflush() assumes its argument pages** contains
pages with the same page shift.  However, since commit e9c3cda4d8 ("mm,
vmalloc: fix high order __GFP_NOFAIL allocations"), if gfp_flags includes
__GFP_NOFAIL with high order in vm_area_alloc_pages() and page allocation
failed for high order, the pages** may contain two different page shifts
(high order and order-0).  This could lead __vmap_pages_range_noflush() to
perform incorrect mappings, potentially resulting in memory corruption.

Users might encounter this as follows (vmap_allow_huge = true, 2M is for
PMD_SIZE):

kvmalloc(2M, __GFP_NOFAIL|GFP_X)
    __vmalloc_node_range_noprof(vm_flags=VM_ALLOW_HUGE_VMAP)
        vm_area_alloc_pages(order=9) ---> order-9 allocation failed and fallback to order-0
            vmap_pages_range()
                vmap_pages_range_noflush()
                    __vmap_pages_range_noflush(page_shift = 21) ----> wrong mapping happens

We can remove the fallback code because if a high-order allocation fails,
__vmalloc_node_range_noprof() will retry with order-0.  Therefore, it is
unnecessary to fallback to order-0 here.  Therefore, fix this by removing
the fallback code.

Link: https://lkml.kernel.org/r/20240808122019.3361-1-hailong.liu@oppo.com
Fixes: e9c3cda4d8 ("mm, vmalloc: fix high order __GFP_NOFAIL allocations")
Signed-off-by: Hailong Liu <hailong.liu@oppo.com>
Reported-by: Tangquan Zheng <zhengtangquan@oppo.com>
Reviewed-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Acked-by: Barry Song <baohua@kernel.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-08-15 22:16:14 -07:00
Waiman Long
d75abd0d0b mm/memory-failure: use raw_spinlock_t in struct memory_failure_cpu
The memory_failure_cpu structure is a per-cpu structure.  Access to its
content requires the use of get_cpu_var() to lock in the current CPU and
disable preemption.  The use of a regular spinlock_t for locking purpose
is fine for a non-RT kernel.

Since the integration of RT spinlock support into the v5.15 kernel, a
spinlock_t in a RT kernel becomes a sleeping lock and taking a sleeping
lock in a preemption disabled context is illegal resulting in the
following kind of warning.

  [12135.732244] BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48
  [12135.732248] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 270076, name: kworker/0:0
  [12135.732252] preempt_count: 1, expected: 0
  [12135.732255] RCU nest depth: 2, expected: 2
    :
  [12135.732420] Hardware name: Dell Inc. PowerEdge R640/0HG0J8, BIOS 2.10.2 02/24/2021
  [12135.732423] Workqueue: kacpi_notify acpi_os_execute_deferred
  [12135.732433] Call Trace:
  [12135.732436]  <TASK>
  [12135.732450]  dump_stack_lvl+0x57/0x81
  [12135.732461]  __might_resched.cold+0xf4/0x12f
  [12135.732479]  rt_spin_lock+0x4c/0x100
  [12135.732491]  memory_failure_queue+0x40/0xe0
  [12135.732503]  ghes_do_memory_failure+0x53/0x390
  [12135.732516]  ghes_do_proc.constprop.0+0x229/0x3e0
  [12135.732575]  ghes_proc+0xf9/0x1a0
  [12135.732591]  ghes_notify_hed+0x6a/0x150
  [12135.732602]  notifier_call_chain+0x43/0xb0
  [12135.732626]  blocking_notifier_call_chain+0x43/0x60
  [12135.732637]  acpi_ev_notify_dispatch+0x47/0x70
  [12135.732648]  acpi_os_execute_deferred+0x13/0x20
  [12135.732654]  process_one_work+0x41f/0x500
  [12135.732695]  worker_thread+0x192/0x360
  [12135.732715]  kthread+0x111/0x140
  [12135.732733]  ret_from_fork+0x29/0x50
  [12135.732779]  </TASK>

Fix it by using a raw_spinlock_t for locking instead.

Also move the pr_err() out of the lock critical section and after
put_cpu_ptr() to avoid indeterminate latency and the possibility of sleep
with this call.

[longman@redhat.com: don't hold percpu ref across pr_err(), per Miaohe]
  Link: https://lkml.kernel.org/r/20240807181130.1122660-1-longman@redhat.com
Link: https://lkml.kernel.org/r/20240806164107.1044956-1-longman@redhat.com
Fixes: 0f383b6dc9 ("locking/spinlock: Provide RT variant")
Signed-off-by: Waiman Long <longman@redhat.com>
Acked-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Naoya Horiguchi <nao.horiguchi@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-08-15 22:16:14 -07:00
Pasha Tatashin
9d85731110 mm: don't account memmap per-node
Fix invalid access to pgdat during hot-remove operation:
ndctl users reported a GPF when trying to destroy a namespace:
$ ndctl destroy-namespace all -r all -f
 Segmentation fault
 dmesg:
 Oops: general protection fault, probably for
 non-canonical address 0xdffffc0000005650: 0000 [#1] PREEMPT SMP KASAN
 PTI
 KASAN: probably user-memory-access in range
 [0x000000000002b280-0x000000000002b287]
 CPU: 26 UID: 0 PID: 1868 Comm: ndctl Not tainted 6.11.0-rc1 #1
 Hardware name: Dell Inc. PowerEdge R640/08HT8T, BIOS
 2.20.1 09/13/2023
 RIP: 0010:mod_node_page_state+0x2a/0x110

cxl-test users report a GPF when trying to unload the test module:
$ modrpobe -r cxl-test
 dmesg
 BUG: unable to handle page fault for address: 0000000000004200
 #PF: supervisor read access in kernel mode
 #PF: error_code(0x0000) - not-present page
 PGD 0 P4D 0
 Oops: Oops: 0000 [#1] PREEMPT SMP PTI
 CPU: 0 UID: 0 PID: 1076 Comm: modprobe Tainted: G O N 6.11.0-rc1 #197
 Tainted: [O]=OOT_MODULE, [N]=TEST
 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/15
 RIP: 0010:mod_node_page_state+0x6/0x90

Currently, when memory is hot-plugged or hot-removed the accounting is
done based on the assumption that memmap is allocated from the same node
as the hot-plugged/hot-removed memory, which is not always the case.

In addition, there are challenges with keeping the node id of the memory
that is being remove to the time when memmap accounting is actually
performed: since this is done after remove_pfn_range_from_zone(), and
also after remove_memory_block_devices(). Meaning that we cannot use
pgdat nor walking though memblocks to get the nid.

Given all of that, account the memmap overhead system wide instead.

For this we are going to be using global atomic counters, but given that
memmap size is rarely modified, and normally is only modified either
during early boot when there is only one CPU, or under a hotplug global
mutex lock, therefore there is no need for per-cpu optimizations.

Also, while we are here rename nr_memmap to nr_memmap_pages, and
nr_memmap_boot to nr_memmap_boot_pages to be self explanatory that the
units are in page count.

[pasha.tatashin@soleen.com: address a few nits from David Hildenbrand]
  Link: https://lkml.kernel.org/r/20240809191020.1142142-4-pasha.tatashin@soleen.com
Link: https://lkml.kernel.org/r/20240809191020.1142142-4-pasha.tatashin@soleen.com
Link: https://lkml.kernel.org/r/20240808213437.682006-4-pasha.tatashin@soleen.com
Fixes: 15995a3524 ("mm: report per-page metadata information")
Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Reported-by: Yi Zhang <yi.zhang@redhat.com>
Closes: https://lore.kernel.org/linux-cxl/CAHj4cs9Ax1=CoJkgBGP_+sNu6-6=6v=_L-ZBZY0bVLD3wUWZQg@mail.gmail.com
Reported-by: Alison Schofield <alison.schofield@intel.com>
Closes: https://lore.kernel.org/linux-mm/Zq0tPd2h6alFz8XF@aschofie-mobl2/#t
Tested-by: Dan Williams <dan.j.williams@intel.com>
Tested-by: Alison Schofield <alison.schofield@intel.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: David Rientjes <rientjes@google.com>
Tested-by: Yi Zhang <yi.zhang@redhat.com>
Cc: Domenico Cerasuolo <cerasuolodomenico@gmail.com>
Cc: Fan Ni <fan.ni@samsung.com>
Cc: Joel Granados <j.granados@samsung.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Li Zhijian <lizhijian@fujitsu.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Sourav Panda <souravpanda@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Yosry Ahmed <yosryahmed@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-08-15 22:16:14 -07:00
Pasha Tatashin
f4cb78af91 mm: add system wide stats items category
/proc/vmstat contains events and stats, events can only grow, but stats
can grow and shrink.

vmstat has the following:
-------------------------
NR_VM_ZONE_STAT_ITEMS:	per-zone stats
NR_VM_NUMA_EVENT_ITEMS:	per-numa events
NR_VM_NODE_STAT_ITEMS:	per-numa stats
NR_VM_WRITEBACK_STAT_ITEMS:	system-wide background-writeback and
				dirty-throttling tresholds.
NR_VM_EVENT_ITEMS:	system-wide events
-------------------------

Rename NR_VM_WRITEBACK_STAT_ITEMS to NR_VM_STAT_ITEMS, to track the
system-wide stats, we are going to add per-page metadata stats to this
category in the next patch.

Also delete unused writeback_stat_name().

Link: https://lkml.kernel.org/r/20240809191020.1142142-2-pasha.tatashin@soleen.com
Link: https://lkml.kernel.org/r/20240808213437.682006-3-pasha.tatashin@soleen.com
Fixes: 15995a3524 ("mm: report per-page metadata information")
Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Suggested-by: Yosry Ahmed <yosryahmed@google.com>
Tested-by: Alison Schofield <alison.schofield@intel.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Domenico Cerasuolo <cerasuolodomenico@gmail.com>
Cc: Joel Granados <j.granados@samsung.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Li Zhijian <lizhijian@fujitsu.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Sourav Panda <souravpanda@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Yi Zhang <yi.zhang@redhat.com>
Cc: Fan Ni <fan.ni@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-08-15 22:16:14 -07:00