linux.git/fs/xfs, branch v4.16

xfs: don't block on the ilock for RWF_NOWAIT

2018-03-01T22:12:45+00:00

Fix xfs_file_iomap_begin to trylock the ilock if IOMAP_NOWAIT is passed,
so that we don't block io_submit callers.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Dave Chinner 
Reviewed-by: Darrick J. Wong 
Signed-off-by: Darrick J. Wong

xfs: don't start out with the exclusive ilock for direct I/O

2018-03-01T22:12:12+00:00

There is no reason to take the ilock exclusively at the start of
xfs_file_iomap_begin for direct I/O, given that it will be demoted
just before calling xfs_iomap_write_direct anyway.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Dave Chinner 
Reviewed-by: Darrick J. Wong 
Signed-off-by: Darrick J. Wong

xfs: don't allocate COW blocks for zeroing holes or unwritten extents

2018-03-01T22:10:31+00:00

The iomap zeroing interface is smart enough to skip zeroing holes or
unwritten extents.  Don't subvert this logic for reflink files.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Dave Chinner 
Reviewed-by: Darrick J. Wong 
Signed-off-by: Darrick J. Wong

xfs: fix potential memory leak in mount option parsing

2018-02-26T18:02:13+00:00

When specifying string type mount option (e.g., logdev)
several times in a mount, current option parsing may
cause memory leak. Hence, call kfree for previous one
in this case.

Signed-off-by: Chengguang Xu 
Reviewed-by: Eric Sandeen 
Reviewed-by: Darrick J. Wong 
Signed-off-by: Darrick J. Wong

xfs: reserve blocks for refcount / rmap log item recovery

2018-02-22T22:41:25+00:00

During log recovery, the per-AG reservations aren't yet set up, so log
recovery has to reserve enough blocks to handle all possible btree
splits.

Reported-by: Dave Chinner 
Signed-off-by: Darrick J. Wong 
Reviewed-by: Dave Chinner

xfs: use memset to initialize xfs_scrub_agfl_info

2018-02-22T22:41:25+00:00

Apparently different gcc versions have competing and
incompatible notions of how to initialize at declaration,
so just give up and fall back to the time-tested memset().

Signed-off-by: Eric Sandeen 
Reviewed-by: Darrick J. Wong 
Signed-off-by: Darrick J. Wong

Merge tag 'xfs-4.16-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

2018-02-05T21:35:56+00:00

Pull more xfs updates from Darrick Wong:
 "As promised, here's a (much smaller) second pull request for the
  second week of the merge cycle. This time around we have a couple
  patches shutting off unsupported fs configurations, and a couple of
  cleanups.

  Last, we turn off EXPERIMENTAL for the reverse mapping btree, since
  the primary downstream user of that information (online fsck) is now
  upstream and I haven't seen any major failures in a few kernel
  releases.

  Summary:

   - Print scrub build status in the xfs build info.

   - Explicitly call out the remaining two scenarios where we don't
     support reflink and never have.

   - Remove EXPERIMENTAL tag from reverse mapping btree!"

* tag 'xfs-4.16-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: remove experimental tag for reverse mapping
  xfs: don't allow reflink + realtime filesystems
  xfs: don't allow DAX on reflink filesystems
  xfs: add scrub to XFS_BUILD_OPTIONS
  xfs: fix u32 type usage in sb validation function

Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2018-02-03T21:49:22+00:00

Pull ext4 updates from Ted Ts'o:
 "Only miscellaneous cleanups and bug fixes for ext4 this cycle"

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: create ext4_kset dynamically
  ext4: create ext4_feat kobject dynamically
  ext4: release kobject/kset even when init/register fail
  ext4: fix incorrect indentation of if statement
  ext4: correct documentation for grpid mount option
  ext4: use 'sbi' instead of 'EXT4_SB(sb)'
  ext4: save error to disk in __ext4_grp_locked_error()
  jbd2: fix sphinx kernel-doc build warnings
  ext4: fix a race in the ext4 shutdown path
  mbcache: make sure c_entry_count is not decremented past zero
  ext4: no need flush workqueue before destroying it
  ext4: fixed alignment and minor code cleanup in ext4.h
  ext4: fix ENOSPC handling in DAX page fault handler
  dax: pass detailed error code from dax_iomap_fault()
  mbcache: revert "fs/mbcache.c: make count_objects() more robust"
  mbcache: initialize entry->e_referenced in mb_cache_entry_create()
  ext4: fix up remaining files with SPDX cleanups

xfs: remove experimental tag for reverse mapping

2018-02-02T05:07:26+00:00

Reverse mapping has had a while to soak, so remove the experimental tag.
Now that we've landed space metadata cross-referencing in scrub, the
feature actually has a purpose.

Reject rmap filesystems with an rt device until the code to support it
is actually implemented.

Signed-off-by: Darrick J. Wong 
Reviewed-by: Dave Chinner 
Reviewed-by: Bill O'Donnell

xfs: don't allow reflink + realtime filesystems

2018-02-02T05:06:16+00:00

We don't support realtime filesystems with reflink either, so fail
those mounts.

Signed-off-by: Darrick J. Wong 
Reviewed-by: Bill O'Donnell