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| author | Christoph Hellwig <hch@infradead.org> | 2012-03-27 18:34:46 +0400 |
|---|---|---|
| committer | Ben Myers <bpm@sgi.com> | 2012-05-15 01:20:15 +0400 |
| commit | b4d05e3019692fc5a8c573fbce60de2d48c5b7a1 (patch) | |
| tree | df2c46061cc44055771475056962bc4c45a7b758 /tools/perf/scripts/python/netdev-times.py | |
| parent | 8a00ebe4cfc90eda9ecb575ba97e22021cd8cf70 (diff) | |
| download | linux-b4d05e3019692fc5a8c573fbce60de2d48c5b7a1.tar.xz | |
xfs: avoid taking the ilock unnessecarily in xfs_qm_dqattach
Check if we actually need to attach a dquot before taking the ilock in
xfs_qm_dqattach. This avoid superflous lock roundtrips for the common cases
of quota support compiled in but not activated on a filesystem and an
inode that already has the dquots attached.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'tools/perf/scripts/python/netdev-times.py')
0 files changed, 0 insertions, 0 deletions