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| author | Mike Snitzer <snitzer@kernel.org> | 2023-11-20 17:29:18 -0500 |
|---|---|---|
| committer | Mike Snitzer <snitzer@kernel.org> | 2024-02-20 13:43:16 -0500 |
| commit | e752e5c33b960085f1ae12e391b18dd8fc5ceef1 (patch) | |
| tree | 48ed75d80c68be5832e2e9a6252d12560f74147c /drivers/md | |
| parent | cd1227dd8341dca720ec71ad7dd2824fbf60ed4e (diff) | |
| download | linux-stable-e752e5c33b960085f1ae12e391b18dd8fc5ceef1.tar.gz linux-stable-e752e5c33b960085f1ae12e391b18dd8fc5ceef1.tar.bz2 linux-stable-e752e5c33b960085f1ae12e391b18dd8fc5ceef1.zip | |
dm vdo wait-queue: optimize vdo_waitq_dequeue_matching_waiters
Remove temporary 'matched_waiters' waitq and just enqueue matched
waiters directly to the caller provided 'matched_waitq'.
Reviewed-by: Ken Raeburn <raeburn@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm-vdo/wait-queue.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/md/dm-vdo/wait-queue.c b/drivers/md/dm-vdo/wait-queue.c index 4231d3243fa1..7e4cf9f03249 100644 --- a/drivers/md/dm-vdo/wait-queue.c +++ b/drivers/md/dm-vdo/wait-queue.c @@ -129,10 +129,8 @@ void vdo_waitq_dequeue_matching_waiters(struct vdo_wait_queue *waitq, void *match_context, struct vdo_wait_queue *matched_waitq) { - // FIXME: copying a waitq just to iterate it, with matching, is unfortunate - struct vdo_wait_queue matched_waiters, iteration_waitq; + struct vdo_wait_queue iteration_waitq; - vdo_waitq_init(&matched_waiters); vdo_waitq_init(&iteration_waitq); vdo_waitq_transfer_all_waiters(waitq, &iteration_waitq); @@ -140,10 +138,8 @@ void vdo_waitq_dequeue_matching_waiters(struct vdo_wait_queue *waitq, struct vdo_waiter *waiter = vdo_waitq_dequeue_next_waiter(&iteration_waitq); vdo_waitq_enqueue_waiter((waiter_match(waiter, match_context) ? - &matched_waiters : waitq), waiter); + matched_waitq : waitq), waiter); } - - vdo_waitq_transfer_all_waiters(&matched_waiters, matched_waitq); } /** |