1 files changed, 3 insertions, 6 deletions

diff --git a/fs/aio.c b/fs/aio.c
index 606613e9d1f4..5b2ff20ad322 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -951,16 +951,13 @@ static bool __get_reqs_available(struct kioctx *ctx)
 	local_irq_save(flags);
 	kcpu = this_cpu_ptr(ctx->cpu);
 	if (!kcpu->reqs_available) {
-		int old, avail = atomic_read(&ctx->reqs_available);
+		int avail = atomic_read(&ctx->reqs_available);
 
 		do {
 			if (avail < ctx->req_batch)
 				goto out;
-
-			old = avail;
-			avail = atomic_cmpxchg(&ctx->reqs_available,
-					       avail, avail - ctx->req_batch);
-		} while (avail != old);
+		} while (!atomic_try_cmpxchg(&ctx->reqs_available,
+					     &avail, avail - ctx->req_batch));
 
 		kcpu->reqs_available += ctx->req_batch;
 	}