From: NeilBrown <neilb@suse.de>
Date: Tue, 25 Aug 2009 07:09:51 +0000 (+1000)
Subject: segments: don't lose delayed updates.
X-Git-Url: http://git.neil.brown.name/?a=commitdiff_plain;h=3eb2678816434b9b753f7bbcf51dcc10c6f02cde;p=LaFS.git

segments: don't lose delayed updates.

We need to keep ss if it has negative updates as well as
positive.
---

diff --git a/segments.c b/segments.c
index d27410e..ca6781e 100644
--- a/segments.c
+++ b/segments.c
@@ -106,7 +106,7 @@ static inline void ss_get(struct segsum *ss)
 static void ss_put(struct segsum *ss, struct fs *fs)
 {
 	if (atomic_dec_and_lock(&ss->refcnt, &fs->stable_lock)) {
-		if (atomic_read(&ss->delayed) > 0)
+		if (atomic_read(&ss->delayed) != 0)
 			spin_unlock(&fs->stable_lock);
 		else {
 			if (!hlist_unhashed(&ss->hash))