From: Akinobu Mita <mita@miraclelinux.com>
To: linux-kernel@vger.kernel.org, akpm@osdl.org
Subject: [PATCH] fix swap cluster offset
Date: Sun, 12 Mar 2006 12:34:50 +0800 [thread overview]
Message-ID: <20060312043450.GA7088@miraclelinux.com> (raw)
When we've allocated SWAPFILE_CLUSTER pages, ->cluster_next should
be the first index of swap cluster. But current code probably sets it
wrong offset.
Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Index: work/mm/swapfile.c
===================================================================
--- work.orig/mm/swapfile.c
+++ work/mm/swapfile.c
@@ -116,7 +116,7 @@ static inline unsigned long scan_swap_ma
last_in_cluster = offset + SWAPFILE_CLUSTER;
else if (offset == last_in_cluster) {
spin_lock(&swap_lock);
- si->cluster_next = offset-SWAPFILE_CLUSTER-1;
+ si->cluster_next = offset-SWAPFILE_CLUSTER+1;
goto cluster;
}
if (unlikely(--latency_ration < 0)) {
next reply other threads:[~2006-03-12 5:15 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-12 4:34 Akinobu Mita [this message]
2006-03-13 16:52 ` [PATCH] fix swap cluster offset Hugh Dickins
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