io_uring: use proper references for fallback_req locking

Use ctx->fallback_req address for test_and_set_bit_lock() and
clear_bit_unlock().

Signed-off-by: Bijan Mottahedeh <bijan.mottahedeh@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/fs/io_uring.c b/fs/io_uring.c
index b536c34c6c369f99173cf1bd473ae8a14fcc4604..3da2a02531e686debe05af5516c4699e911c034f 100644 (file)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1295,7 +1295,7 @@ static struct io_kiocb *io_get_fallback_req(struct io_ring_ctx *ctx)
        struct io_kiocb *req;
 
        req = ctx->fallback_req;
-       if (!test_and_set_bit_lock(0, (unsigned long *) ctx->fallback_req))
+       if (!test_and_set_bit_lock(0, (unsigned long *) &ctx->fallback_req))
                return req;
 
        return NULL;
@@ -1382,7 +1382,7 @@ static void __io_free_req(struct io_kiocb *req)
        if (likely(!io_is_fallback_req(req)))
                kmem_cache_free(req_cachep, req);
        else
-               clear_bit_unlock(0, (unsigned long *) req->ctx->fallback_req);
+               clear_bit_unlock(0, (unsigned long *) &req->ctx->fallback_req);
 }
 
 struct req_batch {