diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2006-03-18 13:21:20 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2006-03-18 18:34:12 -0500 |
| commit | e17a9489b4a686bb5e9615e1d375c67619cb99c5 (patch) | |
| tree | e6574d24ad8f16fefe7663c91cf19109e48f8c6c /block/cfq-iosched.c | |
| parent | 25975f863b0fd42c58109e253e7a4c65d9fdaf48 (diff) | |
| download | lwn-e17a9489b4a686bb5e9615e1d375c67619cb99c5.tar.gz lwn-e17a9489b4a686bb5e9615e1d375c67619cb99c5.zip | |
[PATCH] stop elv_unregister() from rogering other iosched's data, fix locking
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'block/cfq-iosched.c')
| -rw-r--r-- | block/cfq-iosched.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 521c56d4fdbc..7102bafc98b3 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -1211,6 +1211,13 @@ static void cfq_free_io_context(struct cfq_io_context *cic) kmem_cache_free(cfq_ioc_pool, cic); } +static void cfq_trim(struct io_context *ioc) +{ + ioc->set_ioprio = NULL; + if (ioc->cic) + cfq_free_io_context(ioc->cic); +} + /* * Called with interrupts disabled */ @@ -2472,6 +2479,7 @@ static struct elevator_type iosched_cfq = { .elevator_may_queue_fn = cfq_may_queue, .elevator_init_fn = cfq_init_queue, .elevator_exit_fn = cfq_exit_queue, + .trim = cfq_trim, }, .elevator_ktype = &cfq_ktype, .elevator_name = "cfq", |