It's not neccessary to free the request back to slab when we fail to
get sqe, just update state->free_reqs pointer.
Signed-off-by: Hao Xu <haoxu@xxxxxxxxxxxxxxxxx>
---
fs/io_uring.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 74b606990d7e..ce66a9ce2b43 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -6899,7 +6899,7 @@ static int io_submit_sqes(struct io_ring_ctx *ctx, unsigned int nr)
}
sqe = io_get_sqe(ctx);
if (unlikely(!sqe)) {
- kmem_cache_free(req_cachep, req);
+ ctx->submit_state.free_reqs++;
break;
}
/* will complete beyond this point, count as submitted */
--
2.24.4
