| commit | 9a11b4ed0e7c44bca7c939aa544c3c47aae40c12 | [log] [tgz] |
|---|---|---|
| author | Jens Axboe <jens.axboe@oracle.com> | Thu May 29 09:32:08 2008 +0200 |
| committer | Jens Axboe <jens.axboe@oracle.com> | Thu Jul 03 13:21:12 2008 +0200 |
| tree | 438312dda8a63e0704c2ddbdea958f0d729c6c7e | |
| parent | c461a973118346d5c103aaaddd62e53939fd7c67 [diff] |
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>