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| author | Vasily Tarasov <vtaras@openvz.org> | 2006-10-11 13:26:30 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@nelson.home.kernel.dk> | 2006-10-12 15:08:51 +0200 |
| commit | c5841642242e9ae817275e09b36b298456dc17d2 (patch) | |
| tree | be4c37fe2119ece7cc6d09a625cbf778d08e2ef8 /block | |
| parent | e6e80f294c2688302f41959c57acfee7e131e489 (diff) | |
| download | lwn-c5841642242e9ae817275e09b36b298456dc17d2.tar.gz lwn-c5841642242e9ae817275e09b36b298456dc17d2.zip | |
[PATCH] block layer: elv_iosched_show should get elv_list_lock
elv_iosched_show function iterates other elv_list, hence
elv_list_lock should be got.
Signed-off-by: Vasily Tarasov <vtaras@openvz.org>
Signed-off-by: Vasily Tarasov <jens.axboe@oracle.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/elevator.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/block/elevator.c b/block/elevator.c index d8030a84773a..8ccd163254b8 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -1085,7 +1085,7 @@ ssize_t elv_iosched_show(request_queue_t *q, char *name) struct list_head *entry; int len = 0; - spin_lock_irq(q->queue_lock); + spin_lock_irq(&elv_list_lock); list_for_each(entry, &elv_list) { struct elevator_type *__e; @@ -1095,7 +1095,7 @@ ssize_t elv_iosched_show(request_queue_t *q, char *name) else len += sprintf(name+len, "%s ", __e->elevator_name); } - spin_unlock_irq(q->queue_lock); + spin_unlock_irq(&elv_list_lock); len += sprintf(len+name, "\n"); return len; |