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authorGabriel Krisman Bertazi <krisman@linux.vnet.ibm.com>2016-11-28 15:01:48 -0200
committerJens Axboe <axboe@fb.com>2016-11-29 08:01:08 -0700
commit415d3dab964c1a9bc6ceb8941bd4dbe4fbe36a09 (patch)
treef278c4253c44aa3c1e9d15fd12e235eb815bd605 /block
parentd62118b6dd99b8f64350206a6ea6996083b28c9a (diff)
downloadlinux-stericsson-415d3dab964c1a9bc6ceb8941bd4dbe4fbe36a09.tar.gz
blk-mq: Drop explicit timeout sync in hotplug
After commit 287922eb0b18 ("block: defer timeouts to a workqueue"), deleting the timeout work after freezing the queue shouldn't be necessary, since the synchronization is already enforced by the acquisition of a q_usage_counter reference in blk_mq_timeout_work. Signed-off-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com> Reviewed-by: Ming Lei <ming.lei@canonical.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block')
-rw-r--r--block/blk-mq.c9
1 files changed, 1 insertions, 8 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 9d4a1d630d0b..bac12caece06 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -2220,16 +2220,9 @@ static void blk_mq_queue_reinit_work(void)
*/
list_for_each_entry(q, &all_q_list, all_q_node)
blk_mq_freeze_queue_start(q);
- list_for_each_entry(q, &all_q_list, all_q_node) {
+ list_for_each_entry(q, &all_q_list, all_q_node)
blk_mq_freeze_queue_wait(q);
- /*
- * timeout handler can't touch hw queue during the
- * reinitialization
- */
- del_timer_sync(&q->timeout);
- }
-
list_for_each_entry(q, &all_q_list, all_q_node)
blk_mq_queue_reinit(q, &cpuhp_online_new);