From 62a3ddef6181d7d932c565d97552d2f7b9ab4d28 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Fri, 28 Oct 2011 10:03:41 +0200
Subject: [PATCH] vfs: fix spinning prevention in prune_icache_sb
We need to move the inode to the end of the list to actually make the
spinning prevention explained in the comment above it work. With a
plain list_move it will simply stay in place as we're always reclaiming
from the head of the list.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
fs/inode.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/inode.c b/fs/inode.c
index ec7924696a1398..ecbb68dc7e2aef 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -634,7 +634,7 @@ void prune_icache_sb(struct super_block *sb, int nr_to_scan)
* inode to the back of the list so we don't spin on it.
*/
if (!spin_trylock(&inode->i_lock)) {
- list_move(&inode->i_lru, &sb->s_inode_lru);
+ list_move_tail(&inode->i_lru, &sb->s_inode_lru);
continue;
}
--
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