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authorDave Chinner <dchinner@redhat.com>2011-07-08 14:14:39 +1000
committerAl Viro <viro@zeniv.linux.org.uk>2011-07-20 01:44:35 -0400
commit98b745c647a5a90c3c21ea43cbfad9a47b0dfad7 (patch)
tree08917a620b6d15076223c1ef75996a1a76a13abd /fs/super.c
parentfcb94f72d3e0f4f34b326c2986da8e5996daf72c (diff)
downloadlinux-98b745c647a5a90c3c21ea43cbfad9a47b0dfad7.tar.bz2
inode: Make unused inode LRU per superblock
The inode unused list is currently a global LRU. This does not match the other global filesystem cache - the dentry cache - which uses per-superblock LRU lists. Hence we have related filesystem object types using different LRU reclaimation schemes. To enable a per-superblock filesystem cache shrinker, both of these caches need to have per-sb unused object LRU lists. Hence this patch converts the global inode LRU to per-sb LRUs. The patch only does rudimentary per-sb propotioning in the shrinker infrastructure, as this gets removed when the per-sb shrinker callouts are introduced later on. Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/super.c')
-rw-r--r--fs/super.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/super.c b/fs/super.c
index 263edeb9f0e9..e8e6dbfefe8c 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -77,6 +77,7 @@ static struct super_block *alloc_super(struct file_system_type *type)
INIT_HLIST_BL_HEAD(&s->s_anon);
INIT_LIST_HEAD(&s->s_inodes);
INIT_LIST_HEAD(&s->s_dentry_lru);
+ INIT_LIST_HEAD(&s->s_inode_lru);
init_rwsem(&s->s_umount);
mutex_init(&s->s_lock);
lockdep_set_class(&s->s_umount, &type->s_umount_key);