Any of the fast paths will already have this locked, this helper only
exists to deal with io-wq invoking request issue where we do not have
the ctx->uring_lock held already. This means that any common or fast
path will already have this locked, mark it as such.
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
---
io_uring/io_uring.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/io_uring/io_uring.h b/io_uring/io_uring.h
index 2952551fe345..46795ee462df 100644
--- a/io_uring/io_uring.h
+++ b/io_uring/io_uring.h
@@ -208,7 +208,7 @@ static inline void io_ring_submit_unlock(struct io_ring_ctx *ctx,
unsigned issue_flags)
{
lockdep_assert_held(&ctx->uring_lock);
- if (issue_flags & IO_URING_F_UNLOCKED)
+ if (unlikely(issue_flags & IO_URING_F_UNLOCKED))
mutex_unlock(&ctx->uring_lock);
}
@@ -221,7 +221,7 @@ static inline void io_ring_submit_lock(struct io_ring_ctx *ctx,
* The only exception is when we've detached the request and issue it
* from an async worker thread, grab the lock for that case.
*/
- if (issue_flags & IO_URING_F_UNLOCKED)
+ if (unlikely(issue_flags & IO_URING_F_UNLOCKED))
mutex_lock(&ctx->uring_lock);
lockdep_assert_held(&ctx->uring_lock);
}
--
2.43.0
