Commit graph

77171 commits

Author SHA1 Message Date
Linus Torvalds
a782e86649 Saner handling of "lseek should fail with ESPIPE" - gets rid of
magical no_llseek thing and makes checks consistent.  In particular,
 ad-hoc "can we do splice via internal pipe" checks got saner (and
 somewhat more permissive, which is what Jason had been after, AFAICT)
 
 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-work.lseek' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs lseek updates from Al Viro:
 "Jason's lseek series.

  Saner handling of 'lseek should fail with ESPIPE' - this gets rid of
  the magical no_llseek thing and makes checks consistent.

  In particular, the ad-hoc "can we do splice via internal pipe" checks
  got saner (and somewhat more permissive, which is what Jason had been
  after, AFAICT)"

* tag 'pull-work.lseek' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  fs: remove no_llseek
  fs: check FMODE_LSEEK to control internal pipe splicing
  vfio: do not set FMODE_LSEEK flag
  dma-buf: remove useless FMODE_LSEEK flag
  fs: do not compare against ->llseek
  fs: clear or set FMODE_LSEEK based on llseek function
2022-08-03 11:35:20 -07:00
Linus Torvalds
d9395512c5 RCU pathwalk cleanups. Storing sampled ->d_seq of
the next dentry in nameidata simplifies life considerably,
 especially if we delay fetching ->d_inode until step_into().
 
 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs namei updates from Al Viro:
 "RCU pathwalk cleanups.

  Storing sampled ->d_seq of the next dentry in nameidata simplifies
  life considerably, especially if we delay fetching ->d_inode until
  step_into()"

* tag 'pull-work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  step_into(): move fetching ->d_inode past handle_mounts()
  lookup_fast(): don't bother with inode
  follow_dotdot{,_rcu}(): don't bother with inode
  step_into(): lose inode argument
  namei: stash the sampled ->d_seq into nameidata
  namei: move clearing LOOKUP_RCU towards rcu_read_unlock()
  switch try_to_unlazy_next() to __legitimize_mnt()
  follow_dotdot{,_rcu}(): change calling conventions
  namei: get rid of pointless unlikely(read_seqcount_retry(...))
  __follow_mount_rcu(): verify that mount_lock remains unchanged
2022-08-03 11:31:42 -07:00
Linus Torvalds
f00654007f Folio changes for 6.0
- Fix an accounting bug that made NR_FILE_DIRTY grow without limit
    when running xfstests
 
  - Convert more of mpage to use folios
 
  - Remove add_to_page_cache() and add_to_page_cache_locked()
 
  - Convert find_get_pages_range() to filemap_get_folios()
 
  - Improvements to the read_cache_page() family of functions
 
  - Remove a few unnecessary checks of PageError
 
  - Some straightforward filesystem conversions to use folios
 
  - Split PageMovable users out from address_space_operations into their
    own movable_operations
 
  - Convert aops->migratepage to aops->migrate_folio
 
  - Remove nobh support (Christoph Hellwig)
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Merge tag 'folio-6.0' of git://git.infradead.org/users/willy/pagecache

Pull folio updates from Matthew Wilcox:

 - Fix an accounting bug that made NR_FILE_DIRTY grow without limit
   when running xfstests

 - Convert more of mpage to use folios

 - Remove add_to_page_cache() and add_to_page_cache_locked()

 - Convert find_get_pages_range() to filemap_get_folios()

 - Improvements to the read_cache_page() family of functions

 - Remove a few unnecessary checks of PageError

 - Some straightforward filesystem conversions to use folios

 - Split PageMovable users out from address_space_operations into
   their own movable_operations

 - Convert aops->migratepage to aops->migrate_folio

 - Remove nobh support (Christoph Hellwig)

* tag 'folio-6.0' of git://git.infradead.org/users/willy/pagecache: (78 commits)
  fs: remove the NULL get_block case in mpage_writepages
  fs: don't call ->writepage from __mpage_writepage
  fs: remove the nobh helpers
  jfs: stop using the nobh helper
  ext2: remove nobh support
  ntfs3: refactor ntfs_writepages
  mm/folio-compat: Remove migration compatibility functions
  fs: Remove aops->migratepage()
  secretmem: Convert to migrate_folio
  hugetlb: Convert to migrate_folio
  aio: Convert to migrate_folio
  f2fs: Convert to filemap_migrate_folio()
  ubifs: Convert to filemap_migrate_folio()
  btrfs: Convert btrfs_migratepage to migrate_folio
  mm/migrate: Add filemap_migrate_folio()
  mm/migrate: Convert migrate_page() to migrate_folio()
  nfs: Convert to migrate_folio
  btrfs: Convert btree_migratepage to migrate_folio
  mm/migrate: Convert expected_page_refs() to folio_expected_refs()
  mm/migrate: Convert buffer_migrate_page() to buffer_migrate_folio()
  ...
2022-08-03 10:35:43 -07:00
Linus Torvalds
c2a24a7a03 This update includes the following changes:
API:
 
 - Make proc files report fips module name and version.
 
 Algorithms:
 
 - Move generic SHA1 code into lib/crypto.
 - Implement Chinese Remainder Theorem for RSA.
 - Remove blake2s.
 - Add XCTR with x86/arm64 acceleration.
 - Add POLYVAL with x86/arm64 acceleration.
 - Add HCTR2.
 - Add ARIA.
 
 Drivers:
 
 - Add support for new CCP/PSP device ID in ccp.
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Merge tag 'v5.20-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto updates from Herbert Xu:
"API:

   - Make proc files report fips module name and version

  Algorithms:

   - Move generic SHA1 code into lib/crypto

   - Implement Chinese Remainder Theorem for RSA

   - Remove blake2s

   - Add XCTR with x86/arm64 acceleration

   - Add POLYVAL with x86/arm64 acceleration

   - Add HCTR2

   - Add ARIA

  Drivers:

   - Add support for new CCP/PSP device ID in ccp"

* tag 'v5.20-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (89 commits)
  crypto: tcrypt - Remove the static variable initialisations to NULL
  crypto: arm64/poly1305 - fix a read out-of-bound
  crypto: hisilicon/zip - Use the bitmap API to allocate bitmaps
  crypto: hisilicon/sec - fix auth key size error
  crypto: ccree - Remove a useless dma_supported() call
  crypto: ccp - Add support for new CCP/PSP device ID
  crypto: inside-secure - Add missing MODULE_DEVICE_TABLE for of
  crypto: hisilicon/hpre - don't use GFP_KERNEL to alloc mem during softirq
  crypto: testmgr - some more fixes to RSA test vectors
  cyrpto: powerpc/aes - delete the rebundant word "block" in comments
  hwrng: via - Fix comment typo
  crypto: twofish - Fix comment typo
  crypto: rmd160 - fix Kconfig "its" grammar
  crypto: keembay-ocs-ecc - Drop if with an always false condition
  Documentation: qat: rewrite description
  Documentation: qat: Use code block for qat sysfs example
  crypto: lib - add module license to libsha1
  crypto: lib - make the sha1 library optional
  crypto: lib - move lib/sha1.c into lib/crypto/
  crypto: fips - make proc files report fips module name and version
  ...
2022-08-02 17:45:14 -07:00
Linus Torvalds
569bede0cf fsverity update for 5.20
Just a small documentation update to mention the btrfs support.
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Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt

Pull fsverity update from Eric Biggers:
 "Just a small documentation update to mention the btrfs support"

* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
  fs-verity: mention btrfs support
2022-08-02 15:24:36 -07:00
Linus Torvalds
d7b767b508 execve updates for v5.20-rc1
- Allow unsharing time namespace on vfork+exec (Andrei Vagin)
 
 - Replace usage of deprecated kmap APIs (Fabio M. De Francesco)
 
 - Fix spelling mistake (Zhang Jiaming)
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Merge tag 'execve-v5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull execve updates from Kees Cook:

 - Allow unsharing time namespace on vfork+exec (Andrei Vagin)

 - Replace usage of deprecated kmap APIs (Fabio M. De Francesco)

 - Fix spelling mistake (Zhang Jiaming)

* tag 'execve-v5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  exec: Call kmap_local_page() in copy_string_kernel()
  exec: Fix a spelling mistake
  selftests/timens: add a test for vfork+exit
  fs/exec: allow to unshare a time namespace on vfork+exec
2022-08-02 14:36:19 -07:00
Linus Torvalds
ddd1949f58 pstore updates for v5.20-rc1
- Migrate to modern acomp crypto interface (Ard Biesheuvel)
 
 - Use better return type for "rcnt" (Dan Carpenter)
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Merge tag 'pstore-v5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull pstore updates from Kees Cook:

 - Migrate to modern acomp crypto interface (Ard Biesheuvel)

 - Use better return type for "rcnt" (Dan Carpenter)

* tag 'pstore-v5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  pstore/zone: cleanup "rcnt" type
  pstore: migrate to crypto acomp interface
2022-08-02 14:31:46 -07:00
Linus Torvalds
c013d0af81 for-5.20/block-2022-07-29
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Merge tag 'for-5.20/block-2022-07-29' of git://git.kernel.dk/linux-block

Pull block updates from Jens Axboe:

 - Improve the type checking of request flags (Bart)

 - Ensure queue mapping for a single queues always picks the right queue
   (Bart)

 - Sanitize the io priority handling (Jan)

 - rq-qos race fix (Jinke)

 - Reserved tags handling improvements (John)

 - Separate memory alignment from file/disk offset aligment for O_DIRECT
   (Keith)

 - Add new ublk driver, userspace block driver using io_uring for
   communication with the userspace backend (Ming)

 - Use try_cmpxchg() to cleanup the code in various spots (Uros)

 - Finally remove bdevname() (Christoph)

 - Clean up the zoned device handling (Christoph)

 - Clean up independent access range support (Christoph)

 - Clean up and improve block sysfs handling (Christoph)

 - Clean up and improve teardown of block devices.

   This turns the usual two step process into something that is simpler
   to implement and handle in block drivers (Christoph)

 - Clean up chunk size handling (Christoph)

 - Misc cleanups and fixes (Bart, Bo, Dan, GuoYong, Jason, Keith, Liu,
   Ming, Sebastian, Yang, Ying)

* tag 'for-5.20/block-2022-07-29' of git://git.kernel.dk/linux-block: (178 commits)
  ublk_drv: fix double shift bug
  ublk_drv: make sure that correct flags(features) returned to userspace
  ublk_drv: fix error handling of ublk_add_dev
  ublk_drv: fix lockdep warning
  block: remove __blk_get_queue
  block: call blk_mq_exit_queue from disk_release for never added disks
  blk-mq: fix error handling in __blk_mq_alloc_disk
  ublk: defer disk allocation
  ublk: rewrite ublk_ctrl_get_queue_affinity to not rely on hctx->cpumask
  ublk: fold __ublk_create_dev into ublk_ctrl_add_dev
  ublk: cleanup ublk_ctrl_uring_cmd
  ublk: simplify ublk_ch_open and ublk_ch_release
  ublk: remove the empty open and release block device operations
  ublk: remove UBLK_IO_F_PREFLUSH
  ublk: add a MAINTAINERS entry
  block: don't allow the same type rq_qos add more than once
  mmc: fix disk/queue leak in case of adding disk failure
  ublk_drv: fix an IS_ERR() vs NULL check
  ublk: remove UBLK_IO_F_INTEGRITY
  ublk_drv: remove unneeded semicolon
  ...
2022-08-02 13:46:35 -07:00
Linus Torvalds
98e2474640 for-5.20/io_uring-buffered-writes-2022-07-29
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Merge tag 'for-5.20/io_uring-buffered-writes-2022-07-29' of git://git.kernel.dk/linux-block

Pull io_uring buffered writes support from Jens Axboe:
 "This contains support for buffered writes, specifically for XFS. btrfs
  is in progress, will be coming in the next release.

  io_uring does support buffered writes on any file type, but since the
  buffered write path just always -EAGAIN (or -EOPNOTSUPP) any attempt
  to do so if IOCB_NOWAIT is set, any buffered write will effectively be
  handled by io-wq offload. This isn't very efficient, and we even have
  specific code in io-wq to serialize buffered writes to the same inode
  to avoid further inefficiencies with thread offload.

  This is particularly sad since most buffered writes don't block, they
  simply copy data to a page and dirty it. With this pull request, we
  can handle buffered writes a lot more effiently.

  If balance_dirty_pages() needs to block, we back off on writes as
  indicated.

  This improves buffered write support by 2-3x.

  Jan Kara helped with the mm bits for this, and Stefan handled the
  fs/iomap/xfs/io_uring parts of it"

* tag 'for-5.20/io_uring-buffered-writes-2022-07-29' of git://git.kernel.dk/linux-block:
  mm: honor FGP_NOWAIT for page cache page allocation
  xfs: Add async buffered write support
  xfs: Specify lockmode when calling xfs_ilock_for_iomap()
  io_uring: Add tracepoint for short writes
  io_uring: fix issue with io_write() not always undoing sb_start_write()
  io_uring: Add support for async buffered writes
  fs: Add async write file modification handling.
  fs: Split off inode_needs_update_time and __file_update_time
  fs: add __remove_file_privs() with flags parameter
  fs: add a FMODE_BUF_WASYNC flags for f_mode
  iomap: Return -EAGAIN from iomap_write_iter()
  iomap: Add async buffered write support
  iomap: Add flags parameter to iomap_page_create()
  mm: Add balance_dirty_pages_ratelimited_flags() function
  mm: Move updates of dirty_exceeded into one place
  mm: Move starting of background writeback into the main balancing loop
2022-08-02 13:27:23 -07:00
Linus Torvalds
b349b1181d for-5.20/io_uring-2022-07-29
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Merge tag 'for-5.20/io_uring-2022-07-29' of git://git.kernel.dk/linux-block

Pull io_uring updates from Jens Axboe:

 - As per (valid) complaint in the last merge window, fs/io_uring.c has
   grown quite large these days. io_uring isn't really tied to fs
   either, as it supports a wide variety of functionality outside of
   that.

   Move the code to io_uring/ and split it into files that either
   implement a specific request type, and split some code into helpers
   as well. The code is organized a lot better like this, and io_uring.c
   is now < 4K LOC (me).

 - Deprecate the epoll_ctl opcode. It'll still work, just trigger a
   warning once if used. If we don't get any complaints on this, and I
   don't expect any, then we can fully remove it in a future release
   (me).

 - Improve the cancel hash locking (Hao)

 - kbuf cleanups (Hao)

 - Efficiency improvements to the task_work handling (Dylan, Pavel)

 - Provided buffer improvements (Dylan)

 - Add support for recv/recvmsg multishot support. This is similar to
   the accept (or poll) support for have for multishot, where a single
   SQE can trigger everytime data is received. For applications that
   expect to do more than a few receives on an instantiated socket, this
   greatly improves efficiency (Dylan).

 - Efficiency improvements for poll handling (Pavel)

 - Poll cancelation improvements (Pavel)

 - Allow specifiying a range for direct descriptor allocations (Pavel)

 - Cleanup the cqe32 handling (Pavel)

 - Move io_uring types to greatly cleanup the tracing (Pavel)

 - Tons of great code cleanups and improvements (Pavel)

 - Add a way to do sync cancelations rather than through the sqe -> cqe
   interface, as that's a lot easier to use for some use cases (me).

 - Add support to IORING_OP_MSG_RING for sending direct descriptors to a
   different ring. This avoids the usually problematic SCM case, as we
   disallow those. (me)

 - Make the per-command alloc cache we use for apoll generic, place
   limits on it, and use it for netmsg as well (me).

 - Various cleanups (me, Michal, Gustavo, Uros)

* tag 'for-5.20/io_uring-2022-07-29' of git://git.kernel.dk/linux-block: (172 commits)
  io_uring: ensure REQ_F_ISREG is set async offload
  net: fix compat pointer in get_compat_msghdr()
  io_uring: Don't require reinitable percpu_ref
  io_uring: fix types in io_recvmsg_multishot_overflow
  io_uring: Use atomic_long_try_cmpxchg in __io_account_mem
  io_uring: support multishot in recvmsg
  net: copy from user before calling __get_compat_msghdr
  net: copy from user before calling __copy_msghdr
  io_uring: support 0 length iov in buffer select in compat
  io_uring: fix multishot ending when not polled
  io_uring: add netmsg cache
  io_uring: impose max limit on apoll cache
  io_uring: add abstraction around apoll cache
  io_uring: move apoll cache to poll.c
  io_uring: consolidate hash_locked io-wq handling
  io_uring: clear REQ_F_HASH_LOCKED on hash removal
  io_uring: don't race double poll setting REQ_F_ASYNC_DATA
  io_uring: don't miss setting REQ_F_DOUBLE_POLL
  io_uring: disable multishot recvmsg
  io_uring: only trace one of complete or overflow
  ...
2022-08-02 13:20:44 -07:00
Christoph Hellwig
cf5e7a6521 fs: remove the NULL get_block case in mpage_writepages
No one calls mpage_writepages with a NULL get_block paramter, so remove
support for that case.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-08-02 12:34:04 -04:00
Christoph Hellwig
f2d3e573bf fs: don't call ->writepage from __mpage_writepage
All callers of mpage_writepage use block_write_full_page as their
->writepage implementation when called from mpage_writepages
(although for ntfs3 this is obsfucated a bit).

Just call block_write_full_page directly instead of going through
the ->writepage indirection.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-08-02 12:34:04 -04:00
Christoph Hellwig
cc9cf350d1 fs: remove the nobh helpers
All callers are gone, so remove the now dead code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-08-02 12:34:04 -04:00
Christoph Hellwig
002cbb1356 jfs: stop using the nobh helper
The nobh mode is an obscure feature to save lowlevel for large memory
32-bit configurations while trading for much slower performance and
has been long obsolete.  Switch to the regular buffer head based helpers
instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-08-02 12:34:04 -04:00
Christoph Hellwig
0cc5b4ce7a ext2: remove nobh support
The nobh mode is an obscure feature to save lowlevel for large memory
32-bit configurations while trading for much slower performance and
has been long obsolete.  Remove it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-08-02 12:34:04 -04:00
Christoph Hellwig
9139710148 ntfs3: refactor ntfs_writepages
Handle the resident case with an explicit generic_writepages call instead
of using the obscure overload that makes mpage_writepages with a NULL
get_block do the same thing.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-08-02 12:34:04 -04:00
Matthew Wilcox (Oracle)
b890ec2a2c hugetlb: Convert to migrate_folio
This involves converting migrate_huge_page_move_mapping().  We also need a
folio variant of hugetlb_set_page_subpool(), but that's for a later patch.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
2022-08-02 12:34:04 -04:00
Matthew Wilcox (Oracle)
3648951ceb aio: Convert to migrate_folio
Use a folio throughout this function.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2022-08-02 12:34:04 -04:00
Matthew Wilcox (Oracle)
1d5b9bd656 f2fs: Convert to filemap_migrate_folio()
filemap_migrate_folio() fits f2fs's needs perfectly.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Chao Yu <chao@kernel.org>
2022-08-02 12:34:04 -04:00
Matthew Wilcox (Oracle)
e7b15bae55 ubifs: Convert to filemap_migrate_folio()
filemap_migrate_folio() is a little more general than ubifs really needs,
but it's better to share the code.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-08-02 12:34:04 -04:00
Matthew Wilcox (Oracle)
e7a60a1787 btrfs: Convert btrfs_migratepage to migrate_folio
Use filemap_migrate_folio() to do the bulk of the work, and then copy
the ordered flag across if needed.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: David Sterba <dsterba@suse.com>
2022-08-02 12:34:04 -04:00
Matthew Wilcox (Oracle)
2ec810d596 mm/migrate: Add filemap_migrate_folio()
There is nothing iomap-specific about iomap_migratepage(), and it fits
a pattern used by several other filesystems, so move it to mm/migrate.c,
convert it to be filemap_migrate_folio() and convert the iomap filesystems
to use it.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
2022-08-02 12:34:04 -04:00
Matthew Wilcox (Oracle)
541846502f mm/migrate: Convert migrate_page() to migrate_folio()
Convert all callers to pass a folio.  Most have the folio
already available.  Switch all users from aops->migratepage to
aops->migrate_folio.  Also turn the documentation into kerneldoc.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: David Sterba <dsterba@suse.com>
2022-08-02 12:34:04 -04:00
Matthew Wilcox (Oracle)
4ae84a8047 nfs: Convert to migrate_folio
Use a folio throughout this function.  migrate_page() will be converted
later.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2022-08-02 12:34:03 -04:00
Matthew Wilcox (Oracle)
8958b55142 btrfs: Convert btree_migratepage to migrate_folio
Use a folio throughout this function.  migrate_page() will be converted
later.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: David Sterba <dsterba@suse.com>
2022-08-02 12:34:03 -04:00
Matthew Wilcox (Oracle)
67235182a4 mm/migrate: Convert buffer_migrate_page() to buffer_migrate_folio()
Use a folio throughout __buffer_migrate_folio(), add kernel-doc for
buffer_migrate_folio() and buffer_migrate_folio_norefs(), move their
declarations to buffer.h and switch all filesystems that have wired
them up.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2022-08-02 12:34:03 -04:00
Matthew Wilcox (Oracle)
37ce0b319b ext2: Use a folio in ext2_get_page()
Remove a call to read_mapping_page().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-08-02 12:34:03 -04:00
Matthew Wilcox (Oracle)
240159077d gfs2: Convert gfs2_jhead_process_page() to use a folio
Use folio_put_refs() to perform only one atomic operation instead of two.
The other changes are straightforward conversions from page APIs to
their folio equivalents.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-08-02 12:34:03 -04:00
Matthew Wilcox (Oracle)
9bb88987bc ocfs2: Convert ocfs2_read_folio() to use a folio
Use the folio API throughout.  There are a few places where we convert
back to a page to call into the rest of the filesystem, so folio usage
needs to be pushed down to those functions later.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-08-02 12:34:03 -04:00
Matthew Wilcox (Oracle)
36a43502e1 freevxfs: Convert vxfs_immed_read_folio() to use a folio
Reorganise the file to remove the forward declaration.
Use folios throughout vxfs_immed_read_folio().
Use memcpy_to_page() instead of an open-coded kmap()/kunmap().
Remove flush_dcache_page() as this is embedded in memcpy_to_page().
Use folio_pos() instead of opencoding it.
Handle multi-page folios.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-08-02 12:34:03 -04:00
Matthew Wilcox (Oracle)
9a0a953323 coda: Convert coda_symlink_filler() to use a folio
This is a straightforward conversion from the page APIs to the folio
APIs.  Symlinks are not allowed to be larger than PAGE_SIZE, so there
is little work to do here.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-08-02 12:34:03 -04:00
Matthew Wilcox (Oracle)
ac09d88b9f befs: Convert befs_symlink_read_folio() to use a folio
This is a straightforward conversion from the page APIs to the folio
APIs.  Symlinks are not allowed to be larger than PAGE_SIZE, so there
is little work to do here.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-08-02 12:34:03 -04:00
Matthew Wilcox (Oracle)
cf948cbc35 cramfs: read_mapping_page() is synchronous
Since commit 67f9fd91f9, the code to wait for the read to complete has
been dead.  That commit wrongly stated that the read was synchronous
already; this seems to have been a confusion about which ->readpage
operation was being called.  Instead of reintroducing an asynchronous
version of read_mapping_page(), call the readahead code directly to
submit all reads first before waiting for them in read_mapping_page().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-08-02 12:34:02 -04:00
Matthew Wilcox (Oracle)
97a3a383c4 ocfs2: Use filemap_write_and_wait_range() in ocfs2_cow_sync_writeback()
Remove the open-coding of filemap_fdatawait_range().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-08-02 12:34:02 -04:00
Matthew Wilcox (Oracle)
e775dfb33d hostfs: Handle page write errors correctly
If a page can't be written back, we need to call mapping_set_error(),
not clear the page's Uptodate flag.  Also remove the clearing of PageError
on success; that flag is used for read errors, not write errors.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-08-02 12:34:02 -04:00
Matthew Wilcox (Oracle)
31e748e4b1 squashfs: Return the actual error from squashfs_read_folio()
Since we actually know what error happened, we can report it instead
of having the generic code return -EIO for pages that were unlocked
without being marked uptodate.  Also remove a test of PageError since
we have the return value at this point.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-08-02 12:34:02 -04:00
Matthew Wilcox (Oracle)
b7a6eb22ba buffer: Don't test folio error in block_read_full_folio()
We can cache this information in a local variable instead of communicating
from one part of the function to another via folio flags.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-08-02 12:34:02 -04:00
Linus Torvalds
0fac198def fs.idmapped.overlay.acl.v5.20
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Merge tag 'fs.idmapped.overlay.acl.v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux

Pull acl updates from Christian Brauner:
 "Last cycle we introduced support for mounting overlayfs on top of
  idmapped mounts. While looking into additional testing we realized
  that posix acls don't really work correctly with stacking filesystems
  on top of idmapped layers.

  We already knew what the fix were but it would require work that is
  more suitable for the merge window so we turned off posix acls for
  v5.19 for overlayfs on top of idmapped layers with Miklos routing my
  patch upstream in 72a8e05d4f ("Merge tag 'ovl-fixes-5.19-rc7' [..]").

  This contains the work to support posix acls for overlayfs on top of
  idmapped layers. Since the posix acl fixes should use the new
  vfs{g,u}id_t work the associated branch has been merged in. (We sent a
  pull request for this earlier.)

  We've also pulled in Miklos pull request containing my patch to turn
  of posix acls on top of idmapped layers. This allowed us to avoid
  rebasing the branch which we didn't like because we were already at
  rc7 by then. Merging it in allows this branch to first fix posix acls
  and then to cleanly revert the temporary fix it brought in by commit
  4a47c6385b ("ovl: turn of SB_POSIXACL with idmapped layers
  temporarily").

  The last patch in this series adds Seth Forshee as a co-maintainer for
  idmapped mounts. Seth has been integral to all of this work and is
  also the main architect behind the filesystem idmapping work which
  ultimately made filesystems such as FUSE and overlayfs available in
  containers. He continues to be active in both development and review.
  I'm very happy he decided to help and he has my full trust. This
  increases the bus factor which is always great for work like this. I'm
  honestly very excited about this because I think in general we don't
  do great in the bringing on new maintainers department"

For more explanations of the ACL issues, see

  https://lore.kernel.org/all/20220801145520.1532837-1-brauner@kernel.org/

* tag 'fs.idmapped.overlay.acl.v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
  Add Seth Forshee as co-maintainer for idmapped mounts
  Revert "ovl: turn of SB_POSIXACL with idmapped layers temporarily"
  ovl: handle idmappings in ovl_get_acl()
  acl: make posix_acl_clone() available to overlayfs
  acl: port to vfs{g,u}id_t
  acl: move idmapped mount fixup into vfs_{g,s}etxattr()
  mnt_idmapping: add vfs[g,u]id_into_k[g,u]id()
2022-08-01 09:10:07 -07:00
Linus Torvalds
bdfae5ce38 fs.idmapped.vfsuid.v5.20
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Merge tag 'fs.idmapped.vfsuid.v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux

Pull fs idmapping updates from Christian Brauner:
 "This introduces the new vfs{g,u}id_t types we agreed on. Similar to
  k{g,u}id_t the new types are just simple wrapper structs around
  regular {g,u}id_t types.

  They allow to establish a type safety boundary in the VFS for idmapped
  mounts preventing confusion betwen {g,u}ids mapped into an idmapped
  mount and {g,u}ids mapped into the caller's or the filesystem's
  idmapping.

  An initial set of helpers is introduced that allows to operate on
  vfs{g,u}id_t types. We will remove all references to non-type safe
  idmapped mounts helpers in the very near future. The patches do
  already exist.

  This converts the core attribute changing codepaths which become
  significantly easier to reason about because of this change.

  Just a few highlights here as the patches give detailed overviews of
  what is happening in the commit messages:

   - The kernel internal struct iattr contains type safe vfs{g,u}id_t
     values clearly communicating that these values have to take a given
     mount's idmapping into account.

   - The ownership values placed in struct iattr to change ownership are
     identical for idmapped and non-idmapped mounts going forward. This
     also allows to simplify stacking filesystems such as overlayfs that
     change attributes In other words, they always represent the values.

   - Instead of open coding checks for whether ownership changes have
     been requested and an actual update of the inode is required we now
     have small static inline wrappers that abstract this logic away
     removing a lot of code duplication from individual filesystems that
     all open-coded the same checks"

* tag 'fs.idmapped.vfsuid.v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
  mnt_idmapping: align kernel doc and parameter order
  mnt_idmapping: use new helpers in mapped_fs{g,u}id()
  fs: port HAS_UNMAPPED_ID() to vfs{g,u}id_t
  mnt_idmapping: return false when comparing two invalid ids
  attr: fix kernel doc
  attr: port attribute changes to new types
  security: pass down mount idmapping to setattr hook
  quota: port quota helpers mount ids
  fs: port to iattr ownership update helpers
  fs: introduce tiny iattr ownership update helpers
  fs: use mount types in iattr
  fs: add two type safe mapping helpers
  mnt_idmapping: add vfs{g,u}id_t
2022-08-01 08:56:55 -07:00
Linus Torvalds
e6a7cf70a3 File locking changes for v6.0
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Merge tag 'filelock-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux

Pull file locking updates from Jeff Layton:
 "Just a couple of flock() patches from Kuniyuki Iwashima.

  The main change is that this moves a file_lock allocation from the
  slab to the stack"

* tag 'filelock-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
  fs/lock: Rearrange ops in flock syscall.
  fs/lock: Don't allocate file_lock in flock_make_lock().
2022-08-01 08:54:59 -07:00
Linus Torvalds
e88745dcfd Changes since last update:
- Add Yue Hu and Jeffle Xu as reviewers;
 
  - Add the missing wake_up when updating lzma streams;
 
  - Avoid consecutive detection for Highmem memory;
 
  - Prepare for multi-reference pclusters and get rid of PG_error;
 
  - Fix ctx->pos update for NFS export;
 
  - minor cleanups.
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Merge tag 'erofs-for-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs

Pull erofs updates from Gao Xiang:
 "First of all, we'd like to add Yue Hu and Jeffle Xu as two new
  reviewers. Thank them for spending time working on EROFS!

  There is no major feature outstanding in this cycle, mainly a patchset
  I worked on to prepare for rolling hash deduplication and folios for
  compressed data as the next big features. It kills the unneeded
  PG_error flag dependency as well.

  Apart from that, there are bugfixes and cleanups as always. Details
  are listed below:

   - Add Yue Hu and Jeffle Xu as reviewers

   - Add the missing wake_up when updating lzma streams

   - Avoid consecutive detection for Highmem memory

   - Prepare for multi-reference pclusters and get rid of PG_error

   - Fix ctx->pos update for NFS export

   - minor cleanups"

* tag 'erofs-for-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs: (23 commits)
  erofs: update ctx->pos for every emitted dirent
  erofs: get rid of the leftover PAGE_SIZE in dir.c
  erofs: get rid of erofs_prepare_dio() helper
  erofs: introduce multi-reference pclusters (fully-referenced)
  erofs: record the longest decompressed size in this round
  erofs: introduce z_erofs_do_decompressed_bvec()
  erofs: try to leave (de)compressed_pages on stack if possible
  erofs: introduce struct z_erofs_decompress_backend
  erofs: get rid of `z_pagemap_global'
  erofs: clean up `enum z_erofs_collectmode'
  erofs: get rid of `enum z_erofs_page_type'
  erofs: rework online page handling
  erofs: switch compressed_pages[] to bufvec
  erofs: introduce `z_erofs_parse_in_bvecs'
  erofs: drop the old pagevec approach
  erofs: introduce bufvec to store decompressed buffers
  erofs: introduce `z_erofs_parse_out_bvecs()'
  erofs: clean up z_erofs_collector_begin()
  erofs: get rid of unneeded `inode', `map' and `sb'
  erofs: avoid consecutive detection for Highmem memory
  ...
2022-08-01 08:52:37 -07:00
Linus Torvalds
bec14d79f7 Merge tag 'fsnotify_for_v5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull fsnotify updates from Jan Kara:

 - support for FAN_MARK_IGNORE which untangles some of the not well
   defined corner cases with fanotify ignore masks

 - small cleanups

* tag 'fsnotify_for_v5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  fsnotify: Fix comment typo
  fanotify: introduce FAN_MARK_IGNORE
  fanotify: cleanups for fanotify_mark() input validations
  fanotify: prepare for setting event flags in ignore mask
  fs: inotify: Fix typo in inotify comment
2022-08-01 08:50:39 -07:00
Linus Torvalds
af07685b9c Merge tag 'fs_for_v5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull ext2 and reiserfs updates from Jan Kara:
 "A fix for ext2 handling of a corrupted fs image and cleanups in ext2
  and reiserfs"

* tag 'fs_for_v5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  ext2: Add more validity checks for inode counts
  fs/reiserfs/inode: remove dead code in _get_block_create_0()
  fs/ext2: replace ternary operator with min_t()
2022-08-01 08:48:37 -07:00
Linus Torvalds
eb43bbac4c dlm for 6.0
Changes in this set of commits:
 
 . Delay the cleanup of interrupted posix lock requests until the
   user space result arrives. Previously, the immediate cleanup
   would lead to extraneous warnings when the result arrived.
 
 . Tracepoint improvements, e.g. adding the lock resource name.
 
 . Delay the completion of lockspace creation until one full recovery
   cycle has completed. This allows more error cases to be returned to
   the caller.
 
 . Remove warnings from the locking layer about delayed network replies.
   The recently added midcomms warnings are much more useful.
 
 . Begin the process of deprecating two unused lock-timeout-related
   features. These features now require enabling via a Kconfig option,
   and enabling them triggers deprecation warnings. We expect to
   remove the code in v6.2.
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Merge tag 'dlm-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm

Pull dlm updates from David Teigland:

 - Delay the cleanup of interrupted posix lock requests until the user
   space result arrives. Previously, the immediate cleanup would lead to
   extraneous warnings when the result arrived.

 - Tracepoint improvements, e.g. adding the lock resource name.

 - Delay the completion of lockspace creation until one full recovery
   cycle has completed. This allows more error cases to be returned to
   the caller.

 - Remove warnings from the locking layer about delayed network replies.
   The recently added midcomms warnings are much more useful.

 - Begin the process of deprecating two unused lock-timeout-related
   features. These features now require enabling via a Kconfig option,
   and enabling them triggers deprecation warnings. We expect to remove
   the code in v6.2.

* tag 'dlm-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
  fs: dlm: move kref_put assert for lkb structs
  fs: dlm: don't use deprecated timeout features by default
  fs: dlm: add deprecation Kconfig and warnings for timeouts
  fs: dlm: remove timeout from dlm_user_adopt_orphan
  fs: dlm: remove waiter warnings
  fs: dlm: fix grammar in lowcomms output
  fs: dlm: add comment about lkb IFL flags
  fs: dlm: handle recovery result outside of ls_recover
  fs: dlm: make new_lockspace() wait until recovery completes
  fs: dlm: call dlm_lsop_recover_prep once
  fs: dlm: update comments about recovery and membership handling
  fs: dlm: add resource name to tracepoints
  fs: dlm: remove additional dereference of lksb
  fs: dlm: change ast and bast trace order
  fs: dlm: change posix lock sigint handling
  fs: dlm: use dlm_plock_info for do_unlock_close
  fs: dlm: change plock interrupted message to debug again
  fs: dlm: add pid to debug log
  fs: dlm: plock use list_first_entry
2022-08-01 08:46:53 -07:00
Alexander Aring
9585898922 fs: dlm: move kref_put assert for lkb structs
The unhold_lkb() function decrements the lock's kref, and
asserts that the ref count was not the final one.  Use the
kref_put release function (which should not be called) to
call the assert, rather than doing the assert based on the
kref_put return value.  Using kill_lkb() as the release
function doesn't make sense if we only want to assert.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
2022-08-01 09:31:46 -05:00
Alexander Aring
6b0afc0cc3 fs: dlm: don't use deprecated timeout features by default
This patch will disable use of deprecated timeout features if
CONFIG_DLM_DEPRECATED_API is not set.  The deprecated features
will be removed in upcoming kernel release v6.2.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
2022-08-01 09:31:38 -05:00
Alexander Aring
81eeb82fc2 fs: dlm: add deprecation Kconfig and warnings for timeouts
This patch adds a CONFIG_DLM_DEPRECATED_API Kconfig option
that must be enabled to use two timeout-related features
that we intend to remove in kernel v6.2.  Warnings are
printed if either is enabled and used.  Neither has ever
been used as far as we know.

. The DLM_LSFL_TIMEWARN lockspace creation flag will be
  removed, along with the associated configfs entry for
  setting the timeout.  Setting the flag and configfs file
  would cause dlm to track how long locks were waiting
  for reply messages.  After a timeout, a kernel message
  would be logged, and a netlink message would be sent
  to userspace.  Recently, midcomms messages have been
  added that produce much better logging about actual
  problems with messages.  No use has ever been found
  for the netlink messages.

. The userspace libdlm API has allowed the DLM_LKF_TIMEOUT
  flag with a timeout value to be set in lock requests.
  The lock request would be cancelled after the timeout.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
2022-08-01 09:31:32 -05:00
Hongnan Li
ecce9212d0 erofs: update ctx->pos for every emitted dirent
erofs_readdir update ctx->pos after filling a batch of dentries
and it may cause dir/files duplication for NFS readdirplus which
depends on ctx->pos to fill dir correctly. So update ctx->pos for
every emitted dirent in erofs_fill_dentries to fix it.

Also fix the update of ctx->pos when the initial file position has
exceeded nameoff.

Fixes: 3e917cc305 ("erofs: make filesystem exportable")
Signed-off-by: Hongnan Li <hongnan.li@linux.alibaba.com>
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Link: https://lore.kernel.org/r/20220722082732.30935-1-jefflexu@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
2022-07-31 22:26:29 +08:00
Fabio M. De Francesco
c6e8e36c6a exec: Call kmap_local_page() in copy_string_kernel()
The use of kmap_atomic() is being deprecated in favor of kmap_local_page().

With kmap_local_page(), the mappings are per thread, CPU local and not
globally visible. Furthermore, the mappings can be acquired from any
context (including interrupts).

Therefore, replace kmap_atomic() with kmap_local_page() in
copy_string_kernel(). Instead of open-coding local mapping + memcpy(),
use memcpy_to_page(). Delete a redundant call to flush_dcache_page().

Tested with xfstests on a QEMU/ KVM x86_32 VM, 6GB RAM, booting a kernel
with HIGHMEM64GB enabled.

Suggested-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220724212523.13317-1-fmdefrancesco@gmail.com
2022-07-27 14:15:09 -07:00
Linus Torvalds
39c3c396f8 Thirteen hotfixes, Eight are cc:stable and the remainder are for post-5.18
issues or are too minor to warrant backporting
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Merge tag 'mm-hotfixes-stable-2022-07-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "Thirteen hotfixes.

  Eight are cc:stable and the remainder are for post-5.18 issues or are
  too minor to warrant backporting"

* tag 'mm-hotfixes-stable-2022-07-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mailmap: update Gao Xiang's email addresses
  userfaultfd: provide properly masked address for huge-pages
  Revert "ocfs2: mount shared volume without ha stack"
  hugetlb: fix memoryleak in hugetlb_mcopy_atomic_pte
  fs: sendfile handles O_NONBLOCK of out_fd
  ntfs: fix use-after-free in ntfs_ucsncmp()
  secretmem: fix unhandled fault in truncate
  mm/hugetlb: separate path for hwpoison entry in copy_hugetlb_page_range()
  mm: fix missing wake-up event for FSDAX pages
  mm: fix page leak with multiple threads mapping the same page
  mailmap: update Seth Forshee's email address
  tmpfs: fix the issue that the mount and remount results are inconsistent.
  mm: kfence: apply kmemleak_ignore_phys on early allocated pool
2022-07-26 19:38:46 -07:00