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| author | Jens Axboe <jens.axboe@oracle.com> | 2008-05-29 11:32:08 +0400 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2008-07-03 15:21:12 +0400 |
| commit | 9a11b4ed0e7c44bca7c939aa544c3c47aae40c12 (patch) | |
| tree | 438312dda8a63e0704c2ddbdea958f0d729c6c7e /block/as-iosched.c | |
| parent | c461a973118346d5c103aaaddd62e53939fd7c67 (diff) | |
| download | linux-9a11b4ed0e7c44bca7c939aa544c3c47aae40c12.tar.xz | |
cfq-iosched: properly protect ioc_gone and ioc count
If we have multiple tasks freeing cfq_io_contexts when cfq-iosched
is being unloaded, we could complete() ioc_gone twice. Fix that by
protecting ioc_gone complete() and clearing with a spinlock for
just that purpose. Doesn't matter from a performance perspective,
since it'll only enter that path when ioc_gone != NULL (when cfq-iosched
is being rmmod'ed).
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block/as-iosched.c')
0 files changed, 0 insertions, 0 deletions