---

yaml --- r: 87487 b: refs/heads/master c: 6cb2a21 h: refs/heads/master i: 87485: a19009f 87483: c8915a7 87479: 1857c58 87471: 5fcfdbc 87455: 0c0fe8a 87423: aa2371e v: v3
git-mirror · Mar 20, 2008 · de8df15 · de8df15
1 parent c2a571f
commit de8df15
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Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 264e3e889d86e552b4191d69bb60f4f3b383135a
+refs/heads/master: 6cb2a21049b8990df4576c5fce4d48d0206c22d5
diff --git a/trunk/fs/aio.c b/trunk/fs/aio.c
@@ -996,6 +996,14 @@ int aio_complete(struct kiocb *iocb, long res, long res2)
 	/* everything turned out well, dispose of the aiocb. */
 	ret = __aio_put_req(ctx, iocb);
 
+	/*
+	 * We have to order our ring_info tail store above and test
+	 * of the wait list below outside the wait lock.  This is
+	 * like in wake_up_bit() where clearing a bit has to be
+	 * ordered with the unlocked test.
+	 */
+	smp_mb();
+
 	if (waitqueue_active(&ctx->wait))
 		wake_up(&ctx->wait);