| commit | d6de8be711b28049a5cb93c954722c311c7d3f7f | [log] [tgz] |
|---|---|---|
| author | Jens Axboe <jens.axboe@oracle.com> | Wed May 28 14:46:59 2008 +0200 |
| committer | Jens Axboe <jens.axboe@oracle.com> | Wed May 28 14:49:28 2008 +0200 |
| tree | 001dfc1147a64bd05798e29b15ce5d995486a6fa | |
| parent | 64565911cdb57c2f512a9715b985b5617402cc67 [diff] |
cfq-iosched: fix RCU problem in cfq_cic_lookup() cfq_cic_lookup() needs to properly protect ioc->ioc_data before dereferencing it and also exclude updaters of ioc->ioc_data as well. Also add a number of comments documenting why the existing RCU usage is OK. Thanks a lot to "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> for review and comments! Signed-off-by: Jens Axboe <jens.axboe@oracle.com>