From f0075b774395de9bfe3370c9875541e10c2ada5c Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Fri, 10 May 2013 19:50:24 +0100
Subject: [PATCH] --- yaml --- r: 377724 b: refs/heads/master c:
 ee8be57bc331f00d520c4c8a78ffa9590ed41c2c h: refs/heads/master v: v3

---
 [refs]                  |  2 +-
 trunk/fs/fscache/page.c | 16 ++++++++++------
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/[refs] b/[refs]
index e7fe987ca69f..36d545a3b041 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: cb65537ee1134d3cc55c1fa83952bc8eb1212833
+refs/heads/master: ee8be57bc331f00d520c4c8a78ffa9590ed41c2c
diff --git a/trunk/fs/fscache/page.c b/trunk/fs/fscache/page.c
index ff000e52072d..4882c806253f 100644
--- a/trunk/fs/fscache/page.c
+++ b/trunk/fs/fscache/page.c
@@ -796,11 +796,16 @@ void fscache_invalidate_writes(struct fscache_cookie *cookie)
 
 	_enter("");
 
-	while (spin_lock(&cookie->stores_lock),
-	       n = radix_tree_gang_lookup_tag(&cookie->stores, results, 0,
-					      ARRAY_SIZE(results),
-					      FSCACHE_COOKIE_PENDING_TAG),
-	       n > 0) {
+	for (;;) {
+		spin_lock(&cookie->stores_lock);
+		n = radix_tree_gang_lookup_tag(&cookie->stores, results, 0,
+					       ARRAY_SIZE(results),
+					       FSCACHE_COOKIE_PENDING_TAG);
+		if (n == 0) {
+			spin_unlock(&cookie->stores_lock);
+			break;
+		}
+
 		for (i = n - 1; i >= 0; i--) {
 			page = results[i];
 			radix_tree_delete(&cookie->stores, page->index);
@@ -812,7 +817,6 @@ void fscache_invalidate_writes(struct fscache_cookie *cookie)
 			page_cache_release(results[i]);
 	}
 
-	spin_unlock(&cookie->stores_lock);
 	_leave("");
 }