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| author | Jens Axboe <jens.axboe@oracle.com> | 2008-05-29 09:35:22 +0200 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2008-07-03 13:21:12 +0200 |
| commit | 863fddcb4b0caee4c2d5bd6e3b28779920516db3 (patch) | |
| tree | 9170df5fb0e26d77d45017069b7756f7c80afde5 /kernel/sysctl_check.c | |
| parent | 9a11b4ed0e7c44bca7c939aa544c3c47aae40c12 (diff) | |
| download | linux-863fddcb4b0caee4c2d5bd6e3b28779920516db3.tar.gz linux-863fddcb4b0caee4c2d5bd6e3b28779920516db3.tar.bz2 linux-863fddcb4b0caee4c2d5bd6e3b28779920516db3.zip | |
as-iosched: properly protect ioc_gone and ioc count
If we have multiple tasks freeing io contexts when as-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 as-iosched
is being rmmod'ed).
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'kernel/sysctl_check.c')
0 files changed, 0 insertions, 0 deletions