xfs: automatic dfops buffer relogging

Browse source

Buffers that are held across deferred operations are explicitly
joined to the dfops structure to ensure appropriate relogging.
While buffers are currently joined explicitly, we can detect the
conditions that require relogging at dfops finish time by inspecting
the transaction item list for held buffers.

Replace the xfs_defer_bjoin() infrastructure with such detection and
automatic relogging of held buffers. This eliminates the need for
the per-dfops buffer list, replaced by an on-stack variant in
xfs_defer_trans_roll().

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

...

This commit is contained in:

Brian Foster 2018-08-01 07:20:32 -07:00 • committed by Darrick J. Wong

parent 488c919a5b

commit 82ff27bc52

5 changed files with 26 additions and 36 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

fs/xfs/libxfs/xfs_attr.c

View file

58

fs/xfs/libxfs/xfs_defer.c

View file

1

fs/xfs/libxfs/xfs_defer.h

View file

1

fs/xfs/xfs_dquot.c

View file

1

fs/xfs/xfs_trans.h

View file