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vfs: fix spinning prevention in prune_icache_sb

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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>
This commit is contained in:
Christoph Hellwig 2011-10-28 10:03:41 +02:00 committed by root
parent 948409c74d
commit 62a3ddef61
1 changed files with 1 additions and 1 deletions
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2
fs/inode.c
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@ -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. * inode to the back of the list so we don't spin on it.
*/ */
if (!spin_trylock(&inode->i_lock)) { 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; continue;
} }