Skip to content

L
linux
Switch branch/tag
  1. 17 May, 2023 2 commits
    • Bharath SM's avatar
      SMB3: drop reference to cfile before sending oplock break · 59a556ae
      Bharath SM authored 
      In cifs_oplock_break function we drop reference to a cfile at
the end of function, due to which close command goes on wire
after lease break acknowledgment even if file is already closed
by application but we had deferred the handle close.
If other client with limited file shareaccess waiting on lease
break ack proceeds operation on that file as soon as first client
sends ack, then we may encounter status sharing violation error
because of open handle.
Solution is to put reference to cfile(send close on wire if last ref)
and then send oplock acknowledgment to server.

Fixes: 9e31678f ("SMB3: fix lease break timeout when multiple deferred close handles for the same file.")
Cc: stable@kernel.org
Signed-off-by: default avatarBharath SM <bharathsm@microsoft.com>
Reviewed-by: default avatarShyam Prasad N <sprasad@microsoft.com>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
      59a556ae
    • Bharath SM's avatar
      SMB3: Close all deferred handles of inode in case of handle lease break · 47592fa8
      Bharath SM authored 
      Oplock break may occur for different file handle than the deferred
handle. Check for inode deferred closes list, if it's not empty then
close all the deferred handles of inode because we should not cache
handles if we dont have handle lease.

Eg: If openfilelist has one deferred file handle and another open file
handle from app for a same file, then on a lease break we choose the
first handle in openfile list. The first handle in list can be deferred
handle or actual open file handle from app. In case if it is actual open
handle then today, we don't close deferred handles if we lose handle lease
on a file. Problem with this is, later if app decides to close the existing
open handle then we still be caching deferred handles until deferred close
timeout. Leaving open handle may result in sharing violation when windows
client tries to open a file with limited file share access.

So we should check for deferred list of inode and walk through the list of
deferred files in inode and close all deferred files.

Fixes: 9e31678f ("SMB3: fix lease break timeout when multiple deferred close handles for the same file.")
Cc: stable@kernel.org
Signed-off-by: default avatarBharath SM <bharathsm@microsoft.com>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
      47592fa8
  3. 14 May, 2023 13 commits
  5. 13 May, 2023 17 commits
  7. 12 May, 2023 8 commits
    • Borislav Petkov (AMD)'s avatar
      x86/retbleed: Fix return thunk alignment · 9a48d604
      Borislav Petkov (AMD) authored 
      SYM_FUNC_START_LOCAL_NOALIGN() adds an endbr leading to this layout
(leaving only the last 2 bytes of the address):

  3bff <zen_untrain_ret>:
  3bff:       f3 0f 1e fa             endbr64
  3c03:       f6                      test   $0xcc,%bl

  3c04 <__x86_return_thunk>:
  3c04:       c3                      ret
  3c05:       cc                      int3
  3c06:       0f ae e8                lfence

However, "the RET at __x86_return_thunk must be on a 64 byte boundary,
for alignment within the BTB."

Use SYM_START instead.
Signed-off-by: default avatarBorislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: <stable@kernel.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      9a48d604
    • Linus Torvalds's avatar
      Merge tag 'for-6.4-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux · 76c7f887
      Linus Torvalds authored 
      Pull more btrfs fixes from David Sterba:

 - fix incorrect number of bitmap entries for space cache if loading is
   interrupted by some error

 - fix backref walking, this breaks a mode of LOGICAL_INO_V2 ioctl that
   is used in deduplication tools

 - zoned mode fixes:
      - properly finish zone reserved for relocation
      - correctly calculate super block zone end on ZNS
      - properly initialize new extent buffer for redirty

 - make mount option clear_cache work with block-group-tree, to rebuild
   free-space-tree instead of temporarily disabling it that would lead
   to a forced read-only mount

 - fix alignment check for offset when printing extent item

* tag 'for-6.4-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: make clear_cache mount option to rebuild FST without disabling it
  btrfs: zero the buffer before marking it dirty in btrfs_redirty_list_add
  btrfs: zoned: fix full zone super block reading on ZNS
  btrfs: zoned: zone finish data relocation BG with last IO
  btrfs: fix backref walking not returning all inode refs
  btrfs: fix space cache inconsistency after error loading it from disk
  btrfs: print-tree: parent bytenr must be aligned to sector size
      76c7f887
    • Linus Torvalds's avatar
      Merge tag '6.4-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6 · fd88f147
      Linus Torvalds authored 
      Pull cifs client fixes from Steve French:

 - fix for copy_file_range bug for very large files that are multiples
   of rsize

 - do not ignore "isolated transport" flag if set on share

 - set rasize default better

 - three fixes related to shutdown and freezing (fixes 4 xfstests, and
   closes deferred handles faster in some places that were missed)

* tag '6.4-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: release leases for deferred close handles when freezing
  smb3: fix problem remounting a share after shutdown
  SMB3: force unmount was failing to close deferred close files
  smb3: improve parallel reads of large files
  do not reuse connection if share marked as isolated
  cifs: fix pcchunk length type in smb2_copychunk_range
      fd88f147
    • Linus Torvalds's avatar
      Merge tag 'vfs/v6.4-rc1/pipe' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs · df8c2d13
      Linus Torvalds authored 
      Pull vfs fix from Christian Brauner:
 "During the pipe nonblock rework the check for both O_NONBLOCK and
  IOCB_NOWAIT was dropped. Both checks need to be performed to ensure
  that files without O_NONBLOCK but IOCB_NOWAIT don't block when writing
  to or reading from a pipe.

  This just contains the fix adding the check for IOCB_NOWAIT back in"

* tag 'vfs/v6.4-rc1/pipe' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs:
  pipe: check for IOCB_NOWAIT alongside O_NONBLOCK
      df8c2d13
    • Linus Torvalds's avatar
      Merge tag 'io_uring-6.4-2023-05-12' of git://git.kernel.dk/linux · 584dc5db
      Linus Torvalds authored 
      Pull io_uring fix from Jens Axboe:
 "Just a single fix making io_uring_sqe_cmd() available regardless of
  CONFIG_IO_URING, fixing a regression introduced during the merge
  window if nvme was selected but io_uring was not"

* tag 'io_uring-6.4-2023-05-12' of git://git.kernel.dk/linux:
  io_uring: make io_uring_sqe_cmd() unconditionally available
      584dc5db
    • Linus Torvalds's avatar
      Merge tag 'riscv-for-linus-6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux · ed6a75e3
      Linus Torvalds authored 
      Pull RISC-V fix from Palmer Dabbelt:
 "Just a single fix this week for a build issue. That'd usually be a
  good sign, but we've started to get some reports of boot failures on
  some hardware/bootloader configurations. Nothing concrete yet, but
  I've got a funny feeling that's where much of the bug hunting is going
  right now.

  Nothing's reproducing on my end, though, and this fixes some pretty
  concrete issues so I figured there's no reason to delay it:

   - a fix to the linker script to avoid orpahaned sections in
     kernel/pi"

* tag 'riscv-for-linus-6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: Fix orphan section warnings caused by kernel/pi
      ed6a75e3
    • Randy Dunlap's avatar
      Documentation/block: drop the request.rst file · 56cdea92
      Randy Dunlap authored 
      Documentation/block/request.rst is outdated and should be removed.
Also delete its entry in the block/index.rst file.
Signed-off-by: default avatarRandy Dunlap <rdunlap@infradead.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Link: https://lore.kernel.org/r/20230507182606.12647-1-rdunlap@infradead.orgSigned-off-by: default avatarJens Axboe <axboe@kernel.dk>
      56cdea92
    • Jens Axboe's avatar
      pipe: check for IOCB_NOWAIT alongside O_NONBLOCK · c04fe8e3
      Jens Axboe authored 
      Pipe reads or writes need to enable nonblocking attempts, if either
O_NONBLOCK is set on the file, or IOCB_NOWAIT is set in the iocb being
passed in. The latter isn't currently true, ensure we check for both
before waiting on data or space.

Fixes: afed6271 ("pipe: set FMODE_NOWAIT on pipes")
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
Message-Id: <e5946d67-4e5e-b056-ba80-656bab12d9f6@kernel.dk>
Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
      c04fe8e3
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7