diff options
Diffstat (limited to 'fs/io_uring.c')
| -rw-r--r-- | fs/io_uring.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index b35300e4c9a7..f65f85d89217 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -338,7 +338,7 @@ static struct io_uring_cqe *io_get_cqring(struct io_ring_ctx *ctx) tail = ctx->cached_cq_tail; /* See comment at the top of the file */ smp_rmb(); - if (tail + 1 == READ_ONCE(ring->r.head)) + if (tail - READ_ONCE(ring->r.head) == ring->ring_entries) return NULL; ctx->cached_cq_tail++; |