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author | 2013-02-04 10:13:11 -0600 | |
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committer | 2013-02-07 09:39:48 -0600 | |
commit | 311f08acde635e4e5ccea9b9d8c856cc2e0ced95 (patch) | |
tree | 8da8990b565b1d8c269ba20bf964d9115ac619cc /tools/perf/scripts/python/export-to-postgresql.py | |
parent | xfs: refactor space log reservation for XFS_TRANS_ATTR_SET (diff) | |
download | linux-dev-311f08acde635e4e5ccea9b9d8c856cc2e0ced95.tar.xz linux-dev-311f08acde635e4e5ccea9b9d8c856cc2e0ced95.zip |
xfs: memory barrier before wake_up_bit()
In xfs_ifunlock() there is a call to wake_up_bit() after clearing
the flush lock on the xfs inode. This is not guaranteed to be safe,
as noted in the comments above wake_up_bit() beginning with:
In order for this to function properly, as it uses
waitqueue_active() internally, some kind of memory
barrier must be done prior to calling this.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions