Commit Graph

1156209 Commits

Author SHA1 Message Date
Linus Torvalds
5b0ed59649 for-6.3/block-2023-02-16
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Merge tag 'for-6.3/block-2023-02-16' of git://git.kernel.dk/linux

Pull block updates from Jens Axboe:

 - NVMe updates via Christoph:
      - Small improvements to the logging functionality (Amit Engel)
      - Authentication cleanups (Hannes Reinecke)
      - Cleanup and optimize the DMA mapping cod in the PCIe driver
        (Keith Busch)
      - Work around the command effects for Format NVM (Keith Busch)
      - Misc cleanups (Keith Busch, Christoph Hellwig)
      - Fix and cleanup freeing single sgl (Keith Busch)

 - MD updates via Song:
      - Fix a rare crash during the takeover process
      - Don't update recovery_cp when curr_resync is ACTIVE
      - Free writes_pending in md_stop
      - Change active_io to percpu

 - Updates to drbd, inching us closer to unifying the out-of-tree driver
   with the in-tree one (Andreas, Christoph, Lars, Robert)

 - BFQ update adding support for multi-actuator drives (Paolo, Federico,
   Davide)

 - Make brd compliant with REQ_NOWAIT (me)

 - Fix for IOPOLL and queue entering, fixing stalled IO waiting on
   timeouts (me)

 - Fix for REQ_NOWAIT with multiple bios (me)

 - Fix memory leak in blktrace cleanup (Greg)

 - Clean up sbitmap and fix a potential hang (Kemeng)

 - Clean up some bits in BFQ, and fix a bug in the request injection
   (Kemeng)

 - Clean up the request allocation and issue code, and fix some bugs
   related to that (Kemeng)

 - ublk updates and fixes:
      - Add support for unprivileged ublk (Ming)
      - Improve device deletion handling (Ming)
      - Misc (Liu, Ziyang)

 - s390 dasd fixes (Alexander, Qiheng)

 - Improve utility of request caching and fixes (Anuj, Xiao)

 - zoned cleanups (Pankaj)

 - More constification for kobjs (Thomas)

 - blk-iocost cleanups (Yu)

 - Remove bio splitting from drivers that don't need it (Christoph)

 - Switch blk-cgroups to use struct gendisk. Some of this is now
   incomplete as select late reverts were done. (Christoph)

 - Add bvec initialization helpers, and convert callers to use that
   rather than open-coding it (Christoph)

 - Misc fixes and cleanups (Jinke, Keith, Arnd, Bart, Li, Martin,
   Matthew, Ulf, Zhong)

* tag 'for-6.3/block-2023-02-16' of git://git.kernel.dk/linux: (169 commits)
  brd: use radix_tree_maybe_preload instead of radix_tree_preload
  block: use proper return value from bio_failfast()
  block: bio-integrity: Copy flags when bio_integrity_payload is cloned
  block: Fix io statistics for cgroup in throttle path
  brd: mark as nowait compatible
  brd: check for REQ_NOWAIT and set correct page allocation mask
  brd: return 0/-error from brd_insert_page()
  block: sync mixed merged request's failfast with 1st bio's
  Revert "blk-cgroup: pin the gendisk in struct blkcg_gq"
  Revert "blk-cgroup: pass a gendisk to blkg_lookup"
  Revert "blk-cgroup: delay blk-cgroup initialization until add_disk"
  Revert "blk-cgroup: delay calling blkcg_exit_disk until disk_release"
  Revert "blk-cgroup: move the cgroup information to struct gendisk"
  nvme-pci: remove iod use_sgls
  nvme-pci: fix freeing single sgl
  block: ublk: check IO buffer based on flag need_get_data
  s390/dasd: Fix potential memleak in dasd_eckd_init()
  s390/dasd: sort out physical vs virtual pointers usage
  block: Remove the ALLOC_CACHE_SLACK constant
  block: make kobj_type structures constant
  ...
2023-02-20 14:27:21 -08:00
Linus Torvalds
553637f73c for-6.3/dio-2023-02-16
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Merge tag 'for-6.3/dio-2023-02-16' of git://git.kernel.dk/linux

Pull legacy dio update from Jens Axboe:
 "We only have a few file systems that use the old dio code, make them
  select it rather than build it unconditionally"

* tag 'for-6.3/dio-2023-02-16' of git://git.kernel.dk/linux:
  fs: build the legacy direct I/O code conditionally
  fs: move sb_init_dio_done_wq out of direct-io.c
2023-02-20 14:10:36 -08:00
Linus Torvalds
c1ef500307 for-6.3/iter-ubuf-2023-02-16
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Merge tag 'for-6.3/iter-ubuf-2023-02-16' of git://git.kernel.dk/linux

Pull io_uring ITER_UBUF conversion from Jens Axboe:
 "Since we now have ITER_UBUF available, switch to using it for single
  ranges as it's more efficient than ITER_IOVEC for that"

* tag 'for-6.3/iter-ubuf-2023-02-16' of git://git.kernel.dk/linux:
  block: use iter_ubuf for single range
  iov_iter: move iter_ubuf check inside restore WARN
  io_uring: use iter_ubuf for single range imports
  io_uring: switch network send/recv to ITER_UBUF
  iov: add import_ubuf()
2023-02-20 14:03:57 -08:00
Linus Torvalds
cce5fe5eda for-6.3/io_uring-2023-02-16
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Merge tag 'for-6.3/io_uring-2023-02-16' of git://git.kernel.dk/linux

Pull io_uring updates from Jens Axboe:

 - Cleanup series making the async prep and handling of
   REQ_F_FORCE_ASYNC easier to follow and verify (Dylan)

 - Enable specifying specific flags for OP_MSG_RING (Breno)

 - Enable use of KASAN with the internal request cache (Breno)

 - Split the opcode definition structs into a hot and cold part (Breno)

 - OP_MSG_RING fixes (Pavel, me)

 - Fix an issue with IOPOLL cancelation and PREEMPT_NONE (me)

 - Handle TIF_NOTIFY_RESUME for the io-wq threads that never return to
   userspace (me)

 - Add support for using io_uring_register() with a registered ring fd
   (Josh)

 - Improve handling of poll on the ring fd (Pavel)

 - Series improving the task_work handling (Pavel)

 - Misc cleanups, fixes, improvements (Dmitrii, Quanfa, Richard, Pavel,
   me)

* tag 'for-6.3/io_uring-2023-02-16' of git://git.kernel.dk/linux: (51 commits)
  io_uring: Support calling io_uring_register with a registered ring fd
  io_uring,audit: don't log IORING_OP_MADVISE
  io_uring: mark task TASK_RUNNING before handling resume/task work
  io_uring: always go async for unsupported open flags
  io_uring: always go async for unsupported fadvise flags
  io_uring: for requests that require async, force it
  io_uring: if a linked request has REQ_F_FORCE_ASYNC then run it async
  io_uring: add reschedule point to handle_tw_list()
  io_uring: add a conditional reschedule to the IOPOLL cancelation loop
  io_uring: return normal tw run linking optimisation
  io_uring: refactor tctx_task_work
  io_uring: refactor io_put_task helpers
  io_uring: refactor req allocation
  io_uring: improve io_get_sqe
  io_uring: kill outdated comment about overflow flush
  io_uring: use user visible tail in io_uring_poll()
  io_uring: pass in io_issue_def to io_assign_file()
  io_uring: Enable KASAN for request cache
  io_uring: handle TIF_NOTIFY_RESUME when checking for task_work
  io_uring/msg-ring: ensure flags passing works for task_work completions
  ...
2023-02-20 13:53:39 -08:00
Linus Torvalds
eca3a04f14 dlm for 6.3
This patch set fixes some races in the lowcomms startup and shutdown code
 that were found by targetted stress testing that quickly and repeatedly
 joins and leaves lockspaces.
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Merge tag 'dlm-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm

Pull dlm updates from David Teigland:
 "This fixes some races in the lowcomms startup and shutdown code that
  were found by targeted stress testing that quickly and repeatedly
  joins and leaves lockspaces"

* tag 'dlm-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
  fs: dlm: remove unnecessary waker_up() calls
  fs: dlm: move state change into else branch
  fs: dlm: remove newline in log_print
  fs: dlm: reduce the shutdown timeout to 5 secs
  fs: dlm: make dlm sequence id more robust
  fs: dlm: wait until all midcomms nodes detect version
  fs: dlm: ignore unexpected non dlm opts msgs
  fs: dlm: bring back previous shutdown handling
  fs: dlm: send FIN ack back in right cases
  fs: dlm: move sending fin message into state change handling
  fs: dlm: don't set stop rx flag after node reset
  fs: dlm: fix race setting stop tx flag
  fs: dlm: be sure to call dlm_send_queue_flush()
  fs: dlm: fix use after free in midcomms commit
  fs: dlm: start midcomms before scand
  fs/dlm: Remove "select SRCU"
  fs: dlm: fix return value check in dlm_memory_init()
2023-02-20 13:05:24 -08:00
Linus Torvalds
885ce48739 for-6.3-tag
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Merge tag 'for-6.3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
 "The usual mix of performance improvements and new features.

  The core change is reworking how checksums are processed, with
  followup cleanups and simplifications. There are two minor changes in
  block layer and iomap code.

  Features:

   - block group allocation class heuristics:
      - pack files by size (up to 128k, up to 8M, more) to avoid
        fragmentation in block groups, assuming that file size and life
        time is correlated, in particular this may help during balance
      - with tracepoints and extensible in the future

  Performance:

   - send: cache directory utimes and only emit the command when
     necessary
      - speedup up to 10x
      - smaller final stream produced (no redundant utimes commands
        issued)
      - compatibility not affected

   - fiemap: skip backref checks for shared leaves
      - speedup 3x on sample filesystem with all leaves shared (e.g. on
        snapshots)

   - micro optimized b-tree key lookup, speedup in metadata operations
     (sample benchmark: fs_mark +10% of files/sec)

  Core changes:

   - change where checksumming is done in the io path:
      - checksum and read repair does verification at lower layer
      - cascaded cleanups and simplifications

   - raid56 refactoring and cleanups

  Fixes:

   - sysfs: make sure that a run-time change of a feature is correctly
     tracked by the feature files

   - scrub: better reporting of tree block errors

  Other:

   - locally enable -Wmaybe-uninitialized after fixing all warnings

   - misc cleanups, spelling fixes

  Other code:

   - block: export bio_split_rw

   - iomap: remove IOMAP_F_ZONE_APPEND"

* tag 'for-6.3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (109 commits)
  btrfs: make kobj_type structures constant
  btrfs: remove the bdev argument to btrfs_rmap_block
  btrfs: don't rely on unchanging ->bi_bdev for zone append remaps
  btrfs: never return true for reads in btrfs_use_zone_append
  btrfs: pass a btrfs_bio to btrfs_use_append
  btrfs: set bbio->file_offset in alloc_new_bio
  btrfs: use file_offset to limit bios size in calc_bio_boundaries
  btrfs: do unsigned integer division in the extent buffer binary search loop
  btrfs: eliminate extra call when doing binary search on extent buffer
  btrfs: raid56: handle endio in scrub_rbio
  btrfs: raid56: handle endio in recover_rbio
  btrfs: raid56: handle endio in rmw_rbio
  btrfs: raid56: submit the read bios from scrub_assemble_read_bios
  btrfs: raid56: fold rmw_read_wait_recover into rmw_read_bios
  btrfs: raid56: fold recover_assemble_read_bios into recover_rbio
  btrfs: raid56: add a bio_list_put helper
  btrfs: raid56: wait for I/O completion in submit_read_bios
  btrfs: raid56: simplify code flow in rmw_rbio
  btrfs: raid56: simplify error handling and code flow in raid56_parity_write
  btrfs: replace btrfs_wait_tree_block_writeback by wait_on_extent_buffer_writeback
  ...
2023-02-20 12:54:27 -08:00
Linus Torvalds
274978f173 \n
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Merge tag 'fixes_for_v6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull UDF and ext2 fixes from Jan Kara:

 - Rewrite of udf directory iteration code to address multiple syzbot
   reports

 - Fixes to udf extent handling and block mapping code to address
   several syzbot reports and filesystem corruption issues uncovered by
   fsx & fsstress

 - Convert udf to kmap_local()

 - Add sanity checks when loading udf bitmaps

 - Drop old VARCONV support which I've never seen used and which was
   broken for quite some years without anybody noticing

 - Finish conversion of ext2 to kmap_local()

 - One fix to mpage_writepages() on which other udf fixes depend

* tag 'fixes_for_v6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: (78 commits)
  udf: Avoid directory type conversion failure due to ENOMEM
  udf: Use unsigned variables for size calculations
  udf: remove reporting loc in debug output
  udf: Check consistency of Space Bitmap Descriptor
  udf: Fix file counting in LVID
  udf: Limit file size to 4TB
  udf: Don't return bh from udf_expand_dir_adinicb()
  udf: Convert udf_expand_file_adinicb() to avoid kmap_atomic()
  udf: Convert udf_adinicb_writepage() to memcpy_to_page()
  udf: Switch udf_adinicb_readpage() to kmap_local_page()
  udf: Move udf_adinicb_readpage() to inode.c
  udf: Mark aops implementation static
  udf: Switch to single address_space_operations
  udf: Add handling of in-ICB files to udf_bmap()
  udf: Convert all file types to use udf_write_end()
  udf: Convert in-ICB files to use udf_write_begin()
  udf: Convert in-ICB files to use udf_direct_IO()
  udf: Convert in-ICB files to use udf_writepages()
  udf: Unify .read_folio for normal and in-ICB files
  udf: Fix off-by-one error when discarding preallocation
  ...
2023-02-20 12:44:08 -08:00
Linus Torvalds
cd776a4342 \n
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Merge tag 'fsnotify_for_v6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull fsnotify updates from Jan Kara:
 "Support for auditing decisions regarding fanotify permission events"

* tag 'fsnotify_for_v6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  fanotify,audit: Allow audit to use the full permission event response
  fanotify: define struct members to hold response decision context
  fanotify: Ensure consistent variable type for response
2023-02-20 12:38:27 -08:00
Linus Torvalds
6639c3ce7f fsverity updates for 6.3
Fix the longstanding implementation limitation that fsverity was only
 supported when the Merkle tree block size, filesystem block size, and
 PAGE_SIZE were all equal.  Specifically, add support for Merkle tree
 block sizes less than PAGE_SIZE, and make ext4 support fsverity on
 filesystems where the filesystem block size is less than PAGE_SIZE.
 
 Effectively, this means that fsverity can now be used on systems with
 non-4K pages, at least on ext4.  These changes have been tested using
 the verity group of xfstests, newly updated to cover the new code paths.
 
 Also update fs/verity/ to support verifying data from large folios.
 There's also a similar patch for fs/crypto/, to support decrypting data
 from large folios, which I'm including in this pull request to avoid a
 merge conflict between the fscrypt and fsverity branches.
 
 There will be a merge conflict in fs/buffer.c with some of the foliation
 work in the mm tree.  Please use the merge resolution from linux-next.
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Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux

Pull fsverity updates from Eric Biggers:
 "Fix the longstanding implementation limitation that fsverity was only
  supported when the Merkle tree block size, filesystem block size, and
  PAGE_SIZE were all equal.

  Specifically, add support for Merkle tree block sizes less than
  PAGE_SIZE, and make ext4 support fsverity on filesystems where the
  filesystem block size is less than PAGE_SIZE.

  Effectively, this means that fsverity can now be used on systems with
  non-4K pages, at least on ext4. These changes have been tested using
  the verity group of xfstests, newly updated to cover the new code
  paths.

  Also update fs/verity/ to support verifying data from large folios.

  There's also a similar patch for fs/crypto/, to support decrypting
  data from large folios, which I'm including in here to avoid a merge
  conflict between the fscrypt and fsverity branches"

* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux:
  fscrypt: support decrypting data from large folios
  fsverity: support verifying data from large folios
  fsverity.rst: update git repo URL for fsverity-utils
  ext4: allow verity with fs block size < PAGE_SIZE
  fs/buffer.c: support fsverity in block_read_full_folio()
  f2fs: simplify f2fs_readpage_limit()
  ext4: simplify ext4_readpage_limit()
  fsverity: support enabling with tree block size < PAGE_SIZE
  fsverity: support verification with tree block size < PAGE_SIZE
  fsverity: replace fsverity_hash_page() with fsverity_hash_block()
  fsverity: use EFBIG for file too large to enable verity
  fsverity: store log2(digest_size) precomputed
  fsverity: simplify Merkle tree readahead size calculation
  fsverity: use unsigned long for level_start
  fsverity: remove debug messages and CONFIG_FS_VERITY_DEBUG
  fsverity: pass pos and size to ->write_merkle_tree_block
  fsverity: optimize fsverity_cleanup_inode() on non-verity files
  fsverity: optimize fsverity_prepare_setattr() on non-verity files
  fsverity: optimize fsverity_file_open() on non-verity files
2023-02-20 12:33:41 -08:00
Linus Torvalds
f18f9845f2 fscrypt updates for 6.3
Simplify the implementation of the test_dummy_encryption mount option by
 adding the "test dummy key" on-demand.
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Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux

Pull fscrypt updates from Eric Biggers:
 "Simplify the implementation of the test_dummy_encryption mount option
  by adding the 'test dummy key' on-demand"

* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux:
  fscrypt: clean up fscrypt_add_test_dummy_key()
  fs/super.c: stop calling fscrypt_destroy_keyring() from __put_super()
  f2fs: stop calling fscrypt_add_test_dummy_key()
  ext4: stop calling fscrypt_add_test_dummy_key()
  fscrypt: add the test dummy encryption key on-demand
2023-02-20 12:29:27 -08:00
Linus Torvalds
dc483c851f Changes since last update:
- Add per-cpu kthreads for low-latency decompression for Android
    use cases;
 
  - Get rid of tagged pointer helpers since they are rarely used now;
 
  - Several code cleanups to reduce codebase;
 
  - Documentation and MAINTAINERS updates.
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Merge tag 'erofs-for-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs

Pull erofs updates from Gao Xiang:
 "The most noticeable feature for this cycle is per-CPU kthread
  decompression since Android use cases need low-latency I/O handling in
  order to ensure the app runtime performance, currently unbounded
  workqueue latencies are not quite good for production on many aarch64
  hardwares and thus we need to introduce a deterministic expectation
  for these. Decompression is CPU-intensive and it is sleepable for
  EROFS, so other alternatives like decompression under softirq contexts
  are not considered. More details are in the corresponding commit
  message.

  Others are random cleanups around the whole codebase and we will
  continue to clean up further in the next few months.

  Due to Lunar New Year holidays, some other new features were not
  completely reviewed and solidified as expected and we may delay them
  into the next version.

  Summary:

   - Add per-cpu kthreads for low-latency decompression for Android use
     cases

   - Get rid of tagged pointer helpers since they are rarely used now

   - Several code cleanups to reduce codebase

   - Documentation and MAINTAINERS updates"

* tag 'erofs-for-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs: (21 commits)
  erofs: fix an error code in z_erofs_init_zip_subsystem()
  erofs: unify anonymous inodes for blob
  erofs: relinquish volume with mutex held
  erofs: maintain cookies of share domain in self-contained list
  erofs: remove unused device mapping in meta routine
  MAINTAINERS: erofs: Add Documentation/ABI/testing/sysfs-fs-erofs
  Documentation/ABI: sysfs-fs-erofs: update supported features
  erofs: remove unused EROFS_GET_BLOCKS_RAW flag
  erofs: update print symbols for various flags in trace
  erofs: make kobj_type structures constant
  erofs: add per-cpu threads for decompression as an option
  erofs: tidy up internal.h
  erofs: get rid of z_erofs_do_map_blocks() forward declaration
  erofs: move zdata.h into zdata.c
  erofs: remove tagged pointer helpers
  erofs: avoid tagged pointers to mark sync decompression
  erofs: get rid of erofs_inode_datablocks()
  erofs: simplify iloc()
  erofs: get rid of debug_one_dentry()
  erofs: remove linux/buffer_head.h dependency
  ...
2023-02-20 12:23:40 -08:00
Linus Torvalds
91bc559d8d fs.acl.v6.3
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Merge tag 'fs.acl.v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping

Pull vfs acl update from Christian Brauner:
 "This contains a single update to the internal get acl method and
  replaces an open-coded cmpxchg() comparison with with try_cmpxchg().

  It's clearer and also beneficial on some architectures"

* tag 'fs.acl.v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping:
  posix_acl: Use try_cmpxchg in get_acl
2023-02-20 12:14:33 -08:00
Linus Torvalds
ea5aac6fae fs.v6.3
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Merge tag 'fs.v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping

Pull vfs hardening update from Christian Brauner:
 "Jan pointed out that during shutdown both filp_close() and super block
  destruction will use basic printk logging when bugs are detected. This
  causes issues in a few scenarios:

   - Tools like syzkaller cannot figure out that the logged message
     indicates a bug.

   - Users that explicitly opt in to have the kernel bug on data
     corruption by selecting CONFIG_BUG_ON_DATA_CORRUPTION should see
     the kernel crash when they did actually select that option.

   - When there are busy inodes after the superblock is shut down later
     access to such a busy inodes walks through freed memory. It would
     be better to cleanly crash instead.

  All of this can be addressed by using the already existing
  CHECK_DATA_CORRUPTION() macro in these places when kernel bugs are
  detected. Its logging improvement is useful for all users.

  Otherwise this only has a meaningful behavioral effect when users do
  select CONFIG_BUG_ON_DATA_CORRUPTION which means this is backward
  compatible for regular users"

* tag 'fs.v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping:
  fs: Use CHECK_DATA_CORRUPTION() when kernel bugs are detected
2023-02-20 12:03:55 -08:00
Linus Torvalds
05e6295f7b fs.idmapped.v6.3
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Merge tag 'fs.idmapped.v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping

Pull vfs idmapping updates from Christian Brauner:

 - Last cycle we introduced the dedicated struct mnt_idmap type for
   mount idmapping and the required infrastucture in 256c8aed2b ("fs:
   introduce dedicated idmap type for mounts"). As promised in last
   cycle's pull request message this converts everything to rely on
   struct mnt_idmap.

   Currently we still pass around the plain namespace that was attached
   to a mount. This is in general pretty convenient but it makes it easy
   to conflate namespaces that are relevant on the filesystem with
   namespaces that are relevant on the mount level. Especially for
   non-vfs developers without detailed knowledge in this area this was a
   potential source for bugs.

   This finishes the conversion. Instead of passing the plain namespace
   around this updates all places that currently take a pointer to a
   mnt_userns with a pointer to struct mnt_idmap.

   Now that the conversion is done all helpers down to the really
   low-level helpers only accept a struct mnt_idmap argument instead of
   two namespace arguments.

   Conflating mount and other idmappings will now cause the compiler to
   complain loudly thus eliminating the possibility of any bugs. This
   makes it impossible for filesystem developers to mix up mount and
   filesystem idmappings as they are two distinct types and require
   distinct helpers that cannot be used interchangeably.

   Everything associated with struct mnt_idmap is moved into a single
   separate file. With that change no code can poke around in struct
   mnt_idmap. It can only be interacted with through dedicated helpers.
   That means all filesystems are and all of the vfs is completely
   oblivious to the actual implementation of idmappings.

   We are now also able to extend struct mnt_idmap as we see fit. For
   example, we can decouple it completely from namespaces for users that
   don't require or don't want to use them at all. We can also extend
   the concept of idmappings so we can cover filesystem specific
   requirements.

   In combination with the vfs{g,u}id_t work we finished in v6.2 this
   makes this feature substantially more robust and thus difficult to
   implement wrong by a given filesystem and also protects the vfs.

 - Enable idmapped mounts for tmpfs and fulfill a longstanding request.

   A long-standing request from users had been to make it possible to
   create idmapped mounts for tmpfs. For example, to share the host's
   tmpfs mount between multiple sandboxes. This is a prerequisite for
   some advanced Kubernetes cases. Systemd also has a range of use-cases
   to increase service isolation. And there are more users of this.

   However, with all of the other work going on this was way down on the
   priority list but luckily someone other than ourselves picked this
   up.

   As usual the patch is tiny as all the infrastructure work had been
   done multiple kernel releases ago. In addition to all the tests that
   we already have I requested that Rodrigo add a dedicated tmpfs
   testsuite for idmapped mounts to xfstests. It is to be included into
   xfstests during the v6.3 development cycle. This should add a slew of
   additional tests.

* tag 'fs.idmapped.v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping: (26 commits)
  shmem: support idmapped mounts for tmpfs
  fs: move mnt_idmap
  fs: port vfs{g,u}id helpers to mnt_idmap
  fs: port fs{g,u}id helpers to mnt_idmap
  fs: port i_{g,u}id_into_vfs{g,u}id() to mnt_idmap
  fs: port i_{g,u}id_{needs_}update() to mnt_idmap
  quota: port to mnt_idmap
  fs: port privilege checking helpers to mnt_idmap
  fs: port inode_owner_or_capable() to mnt_idmap
  fs: port inode_init_owner() to mnt_idmap
  fs: port acl to mnt_idmap
  fs: port xattr to mnt_idmap
  fs: port ->permission() to pass mnt_idmap
  fs: port ->fileattr_set() to pass mnt_idmap
  fs: port ->set_acl() to pass mnt_idmap
  fs: port ->get_acl() to pass mnt_idmap
  fs: port ->tmpfile() to pass mnt_idmap
  fs: port ->rename() to pass mnt_idmap
  fs: port ->mknod() to pass mnt_idmap
  fs: port ->mkdir() to pass mnt_idmap
  ...
2023-02-20 11:53:11 -08:00
Linus Torvalds
de630176bd i_version handling changes for v6.3
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Merge tag 'iversion-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux

Pull i_version updates from Jeff Layton:
 "This overhauls how we handle i_version queries from nfsd.

  Instead of having special routines and grabbing the i_version field
  directly out of the inode in some cases, we've moved most of the
  handling into the various filesystems' getattr operations. As a bonus,
  this makes ceph's change attribute usable by knfsd as well.

  This should pave the way for future work to make this value queryable
  by userland, and to make it more resilient against rolling back on a
  crash"

* tag 'iversion-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
  nfsd: remove fetch_iversion export operation
  nfsd: use the getattr operation to fetch i_version
  nfsd: move nfsd4_change_attribute to nfsfh.c
  ceph: report the inode version in getattr if requested
  nfs: report the inode version in getattr if requested
  vfs: plumb i_version handling into struct kstat
  fs: clarify when the i_version counter must be updated
  fs: uninline inode_query_iversion
2023-02-20 11:21:02 -08:00
Linus Torvalds
575a7e0f81 File locking changes for v6.3
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Merge tag 'locks-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux

Pull file locking updates from Jeff Layton:
 "The main change here is that I've broken out most of the file locking
  definitions into a new header file. I also went ahead and completed
  the removal of locks_inode function"

* tag 'locks-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
  fs: remove locks_inode
  filelock: move file locking definitions to separate header file
2023-02-20 11:10:38 -08:00
Linus Torvalds
219ac97a48 tpm: v6.3-rc1
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Merge tag 'tpm-v6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd

Pull tpm updates from Jarkko Sakkinen:
 "In additon to bug fixes, these are noteworthy changes:

   - In TPM I2C drivers, migrate from probe() to probe_new() (a new
     driver model in I2C).

   - TPM CRB: Pluton support

   - Add duplicate hash detection to the blacklist keyring in order to
     give more meaningful klog output than e.g. [1]"

Link: https://askubuntu.com/questions/1436856/ubuntu-22-10-blacklist-problem-blacklisting-hash-13-message-on-boot [1]

* tag 'tpm-v6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  tpm: add vendor flag to command code validation
  tpm: Add reserved memory event log
  tpm: Use managed allocation for bios event log
  tpm: tis_i2c: Convert to i2c's .probe_new()
  tpm: tpm_i2c_nuvoton: Convert to i2c's .probe_new()
  tpm: tpm_i2c_infineon: Convert to i2c's .probe_new()
  tpm: tpm_i2c_atmel: Convert to i2c's .probe_new()
  tpm: st33zp24: Convert to i2c's .probe_new()
  KEYS: asymmetric: Fix ECDSA use via keyctl uapi
  certs: don't try to update blacklist keys
  KEYS: Add new function key_create()
  certs: make blacklisted hash available in klog
  tpm_crb: Add support for CRB devices based on Pluton
  crypto: certs: fix FIPS selftest dependency
2023-02-20 11:02:05 -08:00
Linus Torvalds
69adb0bcb8 Rust changes for v6.3
More core additions, getting closer to a point where the first Rust
 modules can be upstreamed. The major ones being:
 
 - Sync: new types 'Arc', 'ArcBorrow' and 'UniqueArc'.
 
 - Types: new trait 'ForeignOwnable' and new type 'ScopeGuard'.
 
 There is also a substantial removal in terms of lines:
 
 - 'alloc' crate: remove the 'borrow' module (type 'Cow' and trait
   'ToOwned').
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Merge tag 'rust-6.3' of https://github.com/Rust-for-Linux/linux

Pull Rust updates from Miguel Ojeda:
 "More core additions, getting closer to a point where the first Rust
  modules can be upstreamed. The major ones being:

   - Sync: new types 'Arc', 'ArcBorrow' and 'UniqueArc'.

   - Types: new trait 'ForeignOwnable' and new type 'ScopeGuard'.

  There is also a substantial removal in terms of lines:

   - 'alloc' crate: remove the 'borrow' module (type 'Cow' and trait
     'ToOwned')"

* tag 'rust-6.3' of https://github.com/Rust-for-Linux/linux:
  rust: delete rust-project.json when running make clean
  rust: MAINTAINERS: Add the zulip link
  rust: types: implement `ForeignOwnable` for `Arc<T>`
  rust: types: implement `ForeignOwnable` for the unit type
  rust: types: implement `ForeignOwnable` for `Box<T>`
  rust: types: introduce `ForeignOwnable`
  rust: types: introduce `ScopeGuard`
  rust: prelude: prevent doc inline of external imports
  rust: sync: add support for dispatching on Arc and ArcBorrow.
  rust: sync: introduce `UniqueArc`
  rust: sync: allow type of `self` to be `ArcBorrow<T>`
  rust: sync: introduce `ArcBorrow`
  rust: sync: allow coercion from `Arc<T>` to `Arc<U>`
  rust: sync: allow type of `self` to be `Arc<T>` or variants
  rust: sync: add `Arc` for ref-counted allocations
  rust: compiler_builtins: make stubs non-global
  rust: alloc: remove the `borrow` module (`ToOwned`, `Cow`)
2023-02-20 10:40:42 -08:00
Linus Torvalds
d644c670ef Remove get_kernel_pages()
Vmalloc page support is removed from shm_get_kernel_pages() and the
 get_kernel_pages() call is replaced by calls to get_page(). With no
 remaining callers of get_kernel_pages() the function is removed.
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Merge tag 'remove-get_kernel_pages-for-6.3' of https://git.linaro.org/people/jens.wiklander/linux-tee

Pull TEE update from Jens Wiklander:
 "Remove get_kernel_pages()

  Vmalloc page support is removed from shm_get_kernel_pages() and the
  get_kernel_pages() call is replaced by calls to get_page(). With no
  remaining callers of get_kernel_pages() the function is removed"

[ This looks like it's just some random 'tee' cleanup, but the bigger
  picture impetus for this is really to to to remove historical
  confusion with mixed use of kernel virtual addresses and 'struct page'
  pointers.

  Kernel virtual pointers in the vmalloc space is then particularly
  confusing - both for looking up a page pointer (when trying to then
  unify a "virtual address or page" interface) and _particularly_ when
  mixed with HIGHMEM support and the kmap*() family of remapping.

  This is particularly true with HIGHMEM getting much less test coverage
  with 32-bit architectures being increasingly legacy targets.

  So we actively wanted to remove get_kernel_pages() to make sure nobody
  else used it too, and thus the 'tee' part is "finally remove last
  user".

  See also commit 6647e76ab6 ("v4l2: don't fall back to follow_pfn()
  if pin_user_pages_fast() fails") for a totally different version of a
  conceptually similar "let's stop this confusion of different ways of
  referring to memory".   - Linus ]

* tag 'remove-get_kernel_pages-for-6.3' of https://git.linaro.org/people/jens.wiklander/linux-tee:
  mm: Remove get_kernel_pages()
  tee: Remove call to get_kernel_pages()
  tee: Remove vmalloc page support
  highmem: Enhance is_kmap_addr() to check kmap_local_page() mappings
2023-02-20 09:27:39 -08:00
Linus Torvalds
c9c3395d5e Linux 6.2 2023-02-19 14:24:22 -08:00
Linus Torvalds
925cf0457d A single fix for x86:
Revert the recent change to the MTRR code which aimed to support
   SEV-SNP guests on Hyper-V. It cuased a regression on XEN Dom0
   kernels.
 
   The underlying issue of MTTR (mis)handling in the x86 code needs some
   deeper investigation and is definitely not 6.2 material.
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Merge tag 'x86-urgent-2023-02-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fix from Thomas Gleixner:
 "A single fix for x86.

  Revert the recent change to the MTRR code which aimed to support
  SEV-SNP guests on Hyper-V. It caused a regression on XEN Dom0 kernels.

  The underlying issue of MTTR (mis)handling in the x86 code needs some
  deeper investigation and is definitely not 6.2 material"

* tag 'x86-urgent-2023-02-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mtrr: Revert 90b926e68f ("x86/pat: Fix pat_x_mtrr_type() for MTRR disabled case")
2023-02-18 17:57:16 -08:00
Linus Torvalds
0097c18e45 A fix for a long standing issue in the alarmtimer code:
Posix-timers armed with a short interval with an ignored signal result
  in an unpriviledged DoS. Due to the ignored signal the timer switches
  into self rearm mode. This issue had been "fixed" before but a rework of
  the alarmtimer code 5 years ago lost that workaround.
 
  There is no real good solution for this issue, which is also worked around
  in the core posix-timer code in the same way, but it certainly moved way
  up on the ever growing todo list.
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Merge tag 'timers-urgent-2023-02-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer fix from Thomas Gleixner:
 "A fix for a long standing issue in the alarmtimer code.

  Posix-timers armed with a short interval with an ignored signal result
  in an unpriviledged DoS. Due to the ignored signal the timer switches
  into self rearm mode. This issue had been "fixed" before but a rework
  of the alarmtimer code 5 years ago lost that workaround.

  There is no real good solution for this issue, which is also worked
  around in the core posix-timer code in the same way, but it certainly
  moved way up on the ever growing todo list"

* tag 'timers-urgent-2023-02-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  alarmtimer: Prevent starvation by small intervals and SIG_IGN
2023-02-18 17:46:50 -08:00
Linus Torvalds
a33d946cbb A single fix for the PCI/MSI infrastructure:
The addition of the new alloc/free interfaces in this cycle forgot to
  add stub functions for pci_msix_alloc_irq_at() and pci_msix_free_irq()
  for the CONFIG_PCI_MSI=n case
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Merge tag 'irq-urgent-2023-02-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fix from Thomas Gleixner:
 "A single build fix for the PCI/MSI infrastructure.

  The addition of the new alloc/free interfaces in this cycle forgot to
  add stub functions for pci_msix_alloc_irq_at() and pci_msix_free_irq()
  for the CONFIG_PCI_MSI=n case"

* tag 'irq-urgent-2023-02-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  PCI/MSI: Provide missing stubs for CONFIG_PCI_MSI=n
2023-02-18 17:38:18 -08:00
Linus Torvalds
5e725d112e x86:
* zero all padding for KVM_GET_DEBUGREGS
 
 * fix rST warning
 
 * disable vPMU support on hybrid CPUs
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm/x86 fixes from Paolo Bonzini:

 - zero all padding for KVM_GET_DEBUGREGS

 - fix rST warning

 - disable vPMU support on hybrid CPUs

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  kvm: initialize all of the kvm_debugregs structure before sending it to userspace
  perf/x86: Refuse to export capabilities for hybrid PMUs
  KVM: x86/pmu: Disable vPMU support on hybrid CPUs (host PMUs)
  Documentation/hw-vuln: Fix rST warning
2023-02-18 11:07:32 -08:00
Linus Torvalds
0c2822b116 arm64 regression fix for 6.2
- Fix 'perf' regression for non-standard CPU PMU hardware (i.e. Apple M1)
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 regression fix from Will Deacon:
 "Apologies for the _extremely_ late pull request here, but we had a
  'perf' (i.e. CPU PMU) regression on the Apple M1 reported on Wednesday
  [1] which was introduced by bd27568117 ("perf: Rewrite core context
  handling") during the merge window.

  Mark and I looked into this and noticed an additional problem caused
  by the same patch, where the 'CHAIN' event (used to combine two
  adjacent 32-bit counters into a single 64-bit counter) was not being
  filtered correctly. Mark posted a series on Thursday [2] which
  addresses both of these regressions and I queued it the same day.

  The changes are small, self-contained and have been confirmed to fix
  the original regression.

  Summary:

   - Fix 'perf' regression for non-standard CPU PMU hardware (i.e. Apple
     M1)"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: perf: reject CHAIN events at creation time
  arm_pmu: fix event CPU filtering
2023-02-18 10:10:49 -08:00
Linus Torvalds
0e9fd589e6 block-6.2-2023-02-17
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Merge tag 'block-6.2-2023-02-17' of git://git.kernel.dk/linux

Pull block fix from Jens Axboe:
 "I guess this is what can happen when you prep things early for going
  away, something else comes in last minute. This one fixes another
  regression in 6.2 for NVMe, from this release, and hence we should
  probably get it submitted for 6.2.

  Still waiting for the original reporter (see bugzilla linked in the
  commit) to test this, but Keith managed to setup and recreate the
  issue and tested the patch that way"

* tag 'block-6.2-2023-02-17' of git://git.kernel.dk/linux:
  nvme-pci: refresh visible attrs for cmb attributes
2023-02-18 09:56:58 -08:00
Linus Torvalds
38f8ccde04 Six hotfixes. Five are cc:stable: four for MM, one for nilfs2. Also a
MAINTAINERS update.
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Merge tag 'mm-hotfixes-stable-2023-02-17-15-16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "Six hotfixes. Five are cc:stable: four for MM, one for nilfs2.

  Also a MAINTAINERS update"

* tag 'mm-hotfixes-stable-2023-02-17-15-16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  nilfs2: fix underflow in second superblock position calculations
  hugetlb: check for undefined shift on 32 bit architectures
  mm/migrate: fix wrongly apply write bit after mkdirty on sparc64
  MAINTAINERS: update FPU EMULATOR web page
  mm/MADV_COLLAPSE: set EAGAIN on unexpected page refcount
  mm/filemap: fix page end in filemap_get_read_batch
2023-02-17 17:51:40 -08:00
Ryusuke Konishi
99b9402a36 nilfs2: fix underflow in second superblock position calculations
Macro NILFS_SB2_OFFSET_BYTES, which computes the position of the second
superblock, underflows when the argument device size is less than 4096
bytes.  Therefore, when using this macro, it is necessary to check in
advance that the device size is not less than a lower limit, or at least
that underflow does not occur.

The current nilfs2 implementation lacks this check, causing out-of-bound
block access when mounting devices smaller than 4096 bytes:

 I/O error, dev loop0, sector 36028797018963960 op 0x0:(READ) flags 0x0
 phys_seg 1 prio class 2
 NILFS (loop0): unable to read secondary superblock (blocksize = 1024)

In addition, when trying to resize the filesystem to a size below 4096
bytes, this underflow occurs in nilfs_resize_fs(), passing a huge number
of segments to nilfs_sufile_resize(), corrupting parameters such as the
number of segments in superblocks.  This causes excessive loop iterations
in nilfs_sufile_resize() during a subsequent resize ioctl, causing
semaphore ns_segctor_sem to block for a long time and hang the writer
thread:

 INFO: task segctord:5067 blocked for more than 143 seconds.
      Not tainted 6.2.0-rc8-syzkaller-00015-gf6feea56f66d #0
 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
 task:segctord        state:D stack:23456 pid:5067  ppid:2
 flags:0x00004000
 Call Trace:
  <TASK>
  context_switch kernel/sched/core.c:5293 [inline]
  __schedule+0x1409/0x43f0 kernel/sched/core.c:6606
  schedule+0xc3/0x190 kernel/sched/core.c:6682
  rwsem_down_write_slowpath+0xfcf/0x14a0 kernel/locking/rwsem.c:1190
  nilfs_transaction_lock+0x25c/0x4f0 fs/nilfs2/segment.c:357
  nilfs_segctor_thread_construct fs/nilfs2/segment.c:2486 [inline]
  nilfs_segctor_thread+0x52f/0x1140 fs/nilfs2/segment.c:2570
  kthread+0x270/0x300 kernel/kthread.c:376
  ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
  </TASK>
 ...
 Call Trace:
  <TASK>
  folio_mark_accessed+0x51c/0xf00 mm/swap.c:515
  __nilfs_get_page_block fs/nilfs2/page.c:42 [inline]
  nilfs_grab_buffer+0x3d3/0x540 fs/nilfs2/page.c:61
  nilfs_mdt_submit_block+0xd7/0x8f0 fs/nilfs2/mdt.c:121
  nilfs_mdt_read_block+0xeb/0x430 fs/nilfs2/mdt.c:176
  nilfs_mdt_get_block+0x12d/0xbb0 fs/nilfs2/mdt.c:251
  nilfs_sufile_get_segment_usage_block fs/nilfs2/sufile.c:92 [inline]
  nilfs_sufile_truncate_range fs/nilfs2/sufile.c:679 [inline]
  nilfs_sufile_resize+0x7a3/0x12b0 fs/nilfs2/sufile.c:777
  nilfs_resize_fs+0x20c/0xed0 fs/nilfs2/super.c:422
  nilfs_ioctl_resize fs/nilfs2/ioctl.c:1033 [inline]
  nilfs_ioctl+0x137c/0x2440 fs/nilfs2/ioctl.c:1301
  ...

This fixes these issues by inserting appropriate minimum device size
checks or anti-underflow checks, depending on where the macro is used.

Link: https://lkml.kernel.org/r/0000000000004e1dfa05f4a48e6b@google.com
Link: https://lkml.kernel.org/r/20230214224043.24141-1-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Reported-by: <syzbot+f0c4082ce5ebebdac63b@syzkaller.appspotmail.com>
Tested-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-17 15:07:05 -08:00
Mike Kravetz
ec4288fe63 hugetlb: check for undefined shift on 32 bit architectures
Users can specify the hugetlb page size in the mmap, shmget and
memfd_create system calls.  This is done by using 6 bits within the flags
argument to encode the base-2 logarithm of the desired page size.  The
routine hstate_sizelog() uses the log2 value to find the corresponding
hugetlb hstate structure.  Converting the log2 value (page_size_log) to
potential hugetlb page size is the simple statement:

	1UL << page_size_log

Because only 6 bits are used for page_size_log, the left shift can not be
greater than 63.  This is fine on 64 bit architectures where a long is 64
bits.  However, if a value greater than 31 is passed on a 32 bit
architecture (where long is 32 bits) the shift will result in undefined
behavior.  This was generally not an issue as the result of the undefined
shift had to exactly match hugetlb page size to proceed.

Recent improvements in runtime checking have resulted in this undefined
behavior throwing errors such as reported below.

Fix by comparing page_size_log to BITS_PER_LONG before doing shift.

Link: https://lkml.kernel.org/r/20230216013542.138708-1-mike.kravetz@oracle.com
Link: https://lore.kernel.org/lkml/CA+G9fYuei_Tr-vN9GS7SfFyU1y9hNysnf=PB7kT0=yv4MiPgVg@mail.gmail.com/
Fixes: 42d7395feb ("mm: support more pagesizes for MAP_HUGETLB/SHM_HUGETLB")
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Reviewed-by: Jesper Juhl <jesperjuhl76@gmail.com>
Acked-by: Muchun Song <songmuchun@bytedance.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: Anders Roxell <anders.roxell@linaro.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Sasha Levin <sashal@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-17 15:07:05 -08:00
Peter Xu
96a9c287e2 mm/migrate: fix wrongly apply write bit after mkdirty on sparc64
Nick Bowler reported another sparc64 breakage after the young/dirty
persistent work for page migration (per "Link:" below).  That's after a
similar report [2].

It turns out page migration was overlooked, and it wasn't failing before
because page migration was not enabled in the initial report test
environment.

David proposed another way [2] to fix this from sparc64 side, but that
patch didn't land somehow.  Neither did I check whether there's any other
arch that has similar issues.

Let's fix it for now as simple as moving the write bit handling to be
after dirty, like what we did before.

Note: this is based on mm-unstable, because the breakage was since 6.1 and
we're at a very late stage of 6.2 (-rc8), so I assume for this specific
case we should target this at 6.3.

[1] https://lore.kernel.org/all/20221021160603.GA23307@u164.east.ru/
[2] https://lore.kernel.org/all/20221212130213.136267-1-david@redhat.com/

Link: https://lkml.kernel.org/r/20230216153059.256739-1-peterx@redhat.com
Fixes: 2e3468778d ("mm: remember young/dirty bit for page migrations")
Link: https://lore.kernel.org/all/CADyTPExpEqaJiMGoV+Z6xVgL50ZoMJg49B10LcZ=8eg19u34BA@mail.gmail.com/
Signed-off-by: Peter Xu <peterx@redhat.com>
Reported-by: Nick Bowler <nbowler@draconx.ca>
Acked-by: David Hildenbrand <david@redhat.com>
Tested-by: Nick Bowler <nbowler@draconx.ca>
Cc: <regressions@lists.linux.dev>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-17 15:07:05 -08:00
Linus Torvalds
dbeed98d89 powerpc fixes for 6.2 #6
- Prevent fallthrough to hash TLB flush when using radix.
 
 Thanks to: Benjamin Gray, "Erhard F.".
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Merge tag 'powerpc-6.2-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fix from Michael Ellerman:

 - Prevent fallthrough to hash TLB flush when using radix

Thanks to Benjamin Gray and Erhard Furtner.

* tag 'powerpc-6.2-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/64s: Prevent fallthrough to hash TLB flush when using radix
2023-02-17 14:53:37 -08:00
Linus Torvalds
75cc9c4716 NFS client fixes for Linux 6.2
Bugfix:
 - Revert "NFSv4.2: Change the default KConfig value for READ_PLUS"
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Merge tag 'nfs-for-6.2-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client fix from Trond Myklebust:
 "Unfortunately, we found another bug in the NFSv4.2 READ_PLUS code.

  Since it has not been possible to fix the bug in time for the 6.2
  release, let's just revert the Kconfig change that enables it:

   - Revert 'NFSv4.2: Change the default KConfig value for READ_PLUS'"

* tag 'nfs-for-6.2-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  Revert "NFSv4.2: Change the default KConfig value for READ_PLUS"
2023-02-17 14:49:11 -08:00
Linus Torvalds
03dad2f0c7 sound fixes for 6.2
A few last-minute fixes.  The significant ones are two ASoC SOF
 regression fixes while the rest are trivial HD-audio quirks.
 All are small / one-liners and should be pretty safe to take.
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Merge tag 'sound-fix-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A few last-minute fixes. The significant ones are two ASoC SOF
  regression fixes while the rest are trivial HD-audio quirks.

  All are small / one-liners and should be pretty safe to take"

* tag 'sound-fix-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ASoC: SOF: Intel: hda-dai: fix possible stream_tag leak
  ALSA: hda/realtek: Enable mute/micmute LEDs and speaker support for HP Laptops
  ALSA: hda/realtek: fix mute/micmute LEDs don't work for a HP platform.
  ALSA: hda/realtek - fixed wrong gpio assigned
  ALSA: hda: Fix codec device field initializan
  ALSA: hda/conexant: add a new hda codec SN6180
  ASoC: SOF: ops: refine parameters order in function snd_sof_dsp_update8
2023-02-17 14:44:31 -08:00
Linus Torvalds
4b89ca5a78 gpio fixes for v6.2
- fix a memory leak in gpio-sim
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Merge tag 'gpio-fixes-for-v6.2-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio fix from Bartosz Golaszewski:

 - fix a memory leak in gpio-sim that was triggered every time libgpiod
   tests are run in user-space

* tag 'gpio-fixes-for-v6.2-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio: sim: fix a memory leak
2023-02-17 13:58:20 -08:00
Linus Torvalds
6d2e62e162 ata fixes for 6.2-rc8
Three small fixes for 6.2 final:
 
   * Disable READ LOG DMA EXT for Samsung MZ7LH drives as these drives
     choke on that command, from Patrick.
 
   * Add Intel Tiger Lake UP{3,4} to the list of supported AHCI
     controllers (this is not technically a bug fix, but it is trivial
     enough that I add it here), from SImon.
 
   * Fix code comments in the pata_octeon_cf driver as incorrect
     formatting was causing warnings from kernel-doc, from Randy.
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Merge tag 'ata-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata

Pull ata fixes from Damien Le Moal:
 "Three small fixes for 6.2 final:

   - Disable READ LOG DMA EXT for Samsung MZ7LH drives as these drives
     choke on that command, from Patrick.

   - Add Intel Tiger Lake UP{3,4} to the list of supported AHCI
     controllers (this is not technically a bug fix, but it is trivial
     enough that I add it here), from Simon.

   - Fix code comments in the pata_octeon_cf driver as incorrect
     formatting was causing warnings from kernel-doc, from Randy"

* tag 'ata-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
  ata: pata_octeon_cf: drop kernel-doc notation
  ata: ahci: Add Tiger Lake UP{3,4} AHCI controller
  ata: libata-core: Disable READ LOG DMA EXT for Samsung MZ7LH
2023-02-17 13:53:09 -08:00
Linus Torvalds
bda6cfae33 MMC core:
- Fix potential resource leaks in SDIO card detection error path
 
 MMC host:
  - jz4740: Decrease maximum clock rate to workaround bug on JZ4760(B)
  - meson-gx: Fix SDIO support to get some WiFi modules to work again
  - mmc_spi: Fix error handling in ->probe()
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Merge tag 'mmc-v6.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:
 "MMC core:
   - Fix potential resource leaks in SDIO card detection error path

  MMC host:
   - jz4740: Decrease maximum clock rate to workaround bug on JZ4760(B)
   - meson-gx: Fix SDIO support to get some WiFi modules to work again
   - mmc_spi: Fix error handling in ->probe()"

* tag 'mmc-v6.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: jz4740: Work around bug on JZ4760(B)
  mmc: mmc_spi: fix error handling in mmc_spi_probe()
  mmc: sdio: fix possible resource leaks in some error paths
  mmc: meson-gx: fix SDIO mode if cap_sdio_irq isn't set
2023-02-17 13:48:54 -08:00
Linus Torvalds
64e0253df6 Misc scheduler fixes:
- Fix user-after-free bug in call_usermodehelper_exec()
  - Fix missing user_cpus_ptr update in __set_cpus_allowed_ptr_locked()
  - Fix PSI use-after-free bug in ep_remove_wait_queue()
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-urgent-2023-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fixes from Ingo Molnar:

 - Fix user-after-free bug in call_usermodehelper_exec()

 - Fix missing user_cpus_ptr update in __set_cpus_allowed_ptr_locked()

 - Fix PSI use-after-free bug in ep_remove_wait_queue()

* tag 'sched-urgent-2023-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/psi: Fix use-after-free in ep_remove_wait_queue()
  sched/core: Fix a missed update of user_cpus_ptr
  freezer,umh: Fix call_usermode_helper_exec() vs SIGKILL
2023-02-17 13:45:09 -08:00
Jens Axboe
1250421697 nvme fix for Linux 6.2
- fix visibility of the CMB sysfs attributes (Keith Busch)
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Merge tag 'nvme-6.2-2022-02-17' of git://git.infradead.org/nvme into block-6.2

Pull NVMe fix from Christoph:

"nvme fix for Linux 6.2

 - fix visibility of the CMB sysfs attributes (Keith Busch)"

* tag 'nvme-6.2-2022-02-17' of git://git.infradead.org/nvme:
  nvme-pci: refresh visible attrs for cmb attributes
2023-02-17 09:07:00 -07:00
Anna Schumaker
896e090eef Revert "NFSv4.2: Change the default KConfig value for READ_PLUS"
This reverts commit 7fd461c47c.

Unfortunately, it has come to our attention that there is still a bug
somewhere in the READ_PLUS code that can result in nfsroot systems on
ARM to crash during boot.

Let's do the right thing and revert this change so we don't break
people's nfsroot setups.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2023-02-17 09:07:19 -05:00
Pankaj Raghav
0aa2988e4f brd: use radix_tree_maybe_preload instead of radix_tree_preload
Unconditionally calling radix_tree_preload_end() results in a OOPS
message as the preload is only conditionally called for
gfpflags_allow_blocking().

[   20.267323] BUG: using smp_processor_id() in preemptible [00000000] code: fio/416
[   20.267837] caller is brd_insert_page.part.0+0xbe/0x190 [brd]
[   20.269436] Call Trace:
[   20.269598]  <TASK>
[   20.269742]  dump_stack_lvl+0x32/0x50
[   20.269982]  check_preemption_disabled+0xd1/0xe0
[   20.270289]  brd_insert_page.part.0+0xbe/0x190 [brd]
[   20.270664]  brd_submit_bio+0x33f/0xf40 [brd]

Use radix_tree_maybe_preload() which does preload only if
gfpflags_allow_blocking() is true but also takes the lock. Therefore,
unconditionally calling radix_tree_preload_end() should not create any
issues and the message disappears.

Fixes: 6ded703c56 ("brd: check for REQ_NOWAIT and set correct page allocation mask")
Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
Link: https://lore.kernel.org/r/20230217121442.33914-1-p.raghav@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-02-17 06:15:53 -07:00
Bartosz Golaszewski
79eeab1d85 gpio: sim: fix a memory leak
Fix an inverted logic bug in gpio_sim_remove_hogs() that leads to GPIO
hog structures never being freed.

Fixes: cb8c474e79 ("gpio: sim: new testing module")
Reported-by: Mirsad Goran Todorovac <mirsad.todorovac@alu.unizg.hr>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-02-17 12:02:26 +01:00
Takashi Iwai
e97fc9cffb ASoC: One more fix for v6.2
One more fix from Peter which he'd very much like to get into
 v6.2.
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Merge tag 'asoc-fix-v6.2-rc8-2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: One more fix for v6.2

One more fix from Peter which he'd very much like to get into
v6.2.
2023-02-17 08:56:33 +01:00
Keith Busch
e917a849c3 nvme-pci: refresh visible attrs for cmb attributes
The sysfs group containing the cmb attributes is registered before the
driver knows if they need to be visible or not. Update the group when
cmb attributes are known to exist so the visibility setting is correct.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=217037
Fixes: 86adbf0cdb ("nvme: simplify transport specific device attribute handling")
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2023-02-17 08:31:05 +01:00
Linus Torvalds
ec35307e18 drm fixes for 6.2 final
drm:
 - dynamic debug disable for now
 
 fbdev:
 - deferred i/o device close fix
 
 amdgpu:
 - Fix GC11.x suspend warning
 - Fix display warning
 
 vc4:
 - YUV planes fix
 - hdmi display fix
 - crtc reduced blanking fix
 
 ast:
 - fix start address computation
 
 vmwgfx:
 - fix bo/handle races
 
 i915:
 - gen11 WA fix
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Merge tag 'drm-fixes-2023-02-17' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Just a final collection of misc fixes, the biggest disables the
  recently added dynamic debugging support, it has a regression that
  needs some bigger fixes.

  Otherwise a bunch of fixes across the board, vc4, amdgpu and vmwgfx
  mostly, with some smaller i915 and ast fixes.

  drm:
   - dynamic debug disable for now

  fbdev:
   - deferred i/o device close fix

  amdgpu:
   - Fix GC11.x suspend warning
   - Fix display warning

  vc4:
   - YUV planes fix
   - hdmi display fix
   - crtc reduced blanking fix

  ast:
   - fix start address computation

  vmwgfx:
   - fix bo/handle races

  i915:
   - gen11 WA fix"

* tag 'drm-fixes-2023-02-17' of git://anongit.freedesktop.org/drm/drm:
  drm/amd/display: Fail atomic_check early on normalize_zpos error
  drm/amd/amdgpu: fix warning during suspend
  drm/vmwgfx: Do not drop the reference to the handle too soon
  drm/vmwgfx: Stop accessing buffer objects which failed init
  drm/i915/gen11: Wa_1408615072/Wa_1407596294 should be on GT list
  drm: Disable dynamic debug as broken
  drm/ast: Fix start address computation
  fbdev: Fix invalid page access after closing deferred I/O devices
  drm/vc4: crtc: Increase setup cost in core clock calculation to handle extreme reduced blanking
  drm/vc4: hdmi: Always enable GCP with AVMUTE cleared
  drm/vc4: Fix YUV plane handling when planes are in different buffers
2023-02-16 20:23:32 -08:00
Jens Axboe
f3ca738624 block: use proper return value from bio_failfast()
kernel test robot complains about a type mismatch:

   block/blk-merge.c:984:42: sparse:     expected restricted blk_opf_t const [usertype] ff
   block/blk-merge.c:984:42: sparse:     got unsigned int
   block/blk-merge.c:1010:42: sparse: sparse: incorrect type in initializer (different base types) @@     expected restricted blk_opf_t const [usertype] ff @@     got unsigned int @@
   block/blk-merge.c:1010:42: sparse:     expected restricted blk_opf_t const [usertype] ff
   block/blk-merge.c:1010:42: sparse:     got unsigned int

because bio_failfast() is return an unsigned int rather than the
appropriate blk_opt_f type. Fix it up.

Fixes: 3ce6a11598 ("block: sync mixed merged request's failfast with 1st bio's")
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/oe-kbuild-all/202302170743.GXypM9Rt-lkp@intel.com/
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-02-16 19:39:15 -07:00
Randy Dunlap
5c7388bcd5 MAINTAINERS: update FPU EMULATOR web page
The web page entry for the FPU EMULATOR no longer works.  I notified Bill
of this and he asked me to update it to this new entry.

Link: https://lkml.kernel.org/r/20230214170208.17287-1-rdunlap@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Bill Metzenthen <billm@melbpc.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-16 18:11:59 -08:00
Zach O'Keefe
ae63c898f4 mm/MADV_COLLAPSE: set EAGAIN on unexpected page refcount
During collapse, in a few places we check to see if a given small page has
any unaccounted references.  If the refcount on the page doesn't match our
expectations, it must be there is an unknown user concurrently interested
in the page, and so it's not safe to move the contents elsewhere. 
However, the unaccounted pins are likely an ephemeral state.

In this situation, MADV_COLLAPSE returns -EINVAL when it should return
-EAGAIN.  This could cause userspace to conclude that the syscall
failed, when it in fact could succeed by retrying.

Link: https://lkml.kernel.org/r/20230125015738.912924-1-zokeefe@google.com
Fixes: 7d8faaf155 ("mm/madvise: introduce MADV_COLLAPSE sync hugepage collapse")
Signed-off-by: Zach O'Keefe <zokeefe@google.com>
Reported-by: Hugh Dickins <hughd@google.com>
Acked-by: Hugh Dickins <hughd@google.com>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-16 18:11:59 -08:00
Qian Yingjin
5956592ce3 mm/filemap: fix page end in filemap_get_read_batch
I was running traces of the read code against an RAID storage system to
understand why read requests were being misaligned against the underlying
RAID strips.  I found that the page end offset calculation in
filemap_get_read_batch() was off by one.

When a read is submitted with end offset 1048575, then it calculates the
end page for read of 256 when it should be 255.  "last_index" is the index
of the page beyond the end of the read and it should be skipped when get a
batch of pages for read in @filemap_get_read_batch().

The below simple patch fixes the problem.  This code was introduced in
kernel 5.12.

Link: https://lkml.kernel.org/r/20230208022400.28962-1-coolqyj@163.com
Fixes: cbd59c48ae ("mm/filemap: use head pages in generic_file_buffered_read")
Signed-off-by: Qian Yingjin <qian@ddn.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-16 18:11:58 -08:00
Benjamin Gray
4302abc628 powerpc/64s: Prevent fallthrough to hash TLB flush when using radix
In the fix reconnecting hash__tlb_flush() to tlb_flush() the
void return on radix__tlb_flush() was not restored and subsequently
falls through to the restored hash__tlb_flush().

Guard hash__tlb_flush() under an else to prevent this.

Fixes: 1665c027af ("powerpc/64s: Reconnect tlb_flush() to hash__tlb_flush()")
Reported-by: "Erhard F." <erhard_f@mailbox.org>
Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230217011434.115554-1-bgray@linux.ibm.com
2023-02-17 12:30:56 +11:00
Dave Airlie
f7597e3c58 - Moving gen11 hw wa to the right place. (Matt)
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Merge tag 'drm-intel-fixes-2023-02-16' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Moving gen11 hw wa to the right place. (Matt)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Y+47eUvwbafER35/@intel.com
2023-02-17 09:50:06 +10:00