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| author | Ming Lei <ming.lei@redhat.com> | 2021-06-25 10:02:48 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-14 16:56:13 +0200 |
| commit | 512106ae2355813a5eb84e8dc908628d52856890 (patch) | |
| tree | 54f6fb4387aa9d674debddddf16eee01e1eb689d /block | |
| parent | 3e33b1329c61c58ebed90e9780ab14684f5f7438 (diff) | |
| download | linux-stable-512106ae2355813a5eb84e8dc908628d52856890.tar.gz linux-stable-512106ae2355813a5eb84e8dc908628d52856890.tar.bz2 linux-stable-512106ae2355813a5eb84e8dc908628d52856890.zip | |
blk-mq: update hctx->dispatch_busy in case of real scheduler
[ Upstream commit cb9516be7708a2a18ec0a19fe3a225b5b3bc92c7 ]
Commit 6e6fcbc27e77 ("blk-mq: support batching dispatch in case of io")
starts to support io batching submission by using hctx->dispatch_busy.
However, blk_mq_update_dispatch_busy() isn't changed to update hctx->dispatch_busy
in that commit, so fix the issue by updating hctx->dispatch_busy in case
of real scheduler.
Reported-by: Jan Kara <jack@suse.cz>
Reviewed-by: Jan Kara <jack@suse.cz>
Fixes: 6e6fcbc27e77 ("blk-mq: support batching dispatch in case of io")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20210625020248.1630497-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-mq.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index 00d6ed2fe812..a368eb6dc647 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -1242,9 +1242,6 @@ static void blk_mq_update_dispatch_busy(struct blk_mq_hw_ctx *hctx, bool busy) { unsigned int ewma; - if (hctx->queue->elevator) - return; - ewma = hctx->dispatch_busy; if (!ewma && !busy) |