diff options
| author | Dave Chinner <david@fromorbit.com> | 2009-04-06 18:42:11 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@brick.lst.de> | 2009-04-06 18:42:11 +0200 |
| commit | c626d174cfe38e7f0545d074c299527892cd8c45 (patch) | |
| tree | 8f7dfa34a77bc415d9dc604d79fbae98ffe47a14 /fs/xfs/xfs_log.c | |
| parent | 705db3fd4660174a27418bbcb874d209a76044eb (diff) | |
| download | kernel_samsung_smdk4412-c626d174cfe38e7f0545d074c299527892cd8c45.tar.gz kernel_samsung_smdk4412-c626d174cfe38e7f0545d074c299527892cd8c45.tar.bz2 kernel_samsung_smdk4412-c626d174cfe38e7f0545d074c299527892cd8c45.zip | |
xfs: prevent unwritten extent conversion from blocking I/O completion
Unwritten extent conversion can recurse back into the filesystem due
to memory allocation. Memory reclaim requires I/O completions to be
processed to allow the callers to make progress. If the I/O
completion workqueue thread is doing the recursion, then we have a
deadlock situation.
Move unwritten extent completion into it's own workqueue so it
doesn't block I/O completions for normal delayed allocation or
overwrite data.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_log.c')
0 files changed, 0 insertions, 0 deletions