From 27c1cc36893c587a632f99e9868cbaedc44108bf Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Thu, 9 Aug 2007 07:51:48 -0700 Subject: [PATCH] FS: ExtX filesystem defrag Support defragmentation for extX filesystem inodes Reviewed-by: Rik van Riel Signed-off-by: Christoph Lameter --- fs/ext2/super.c | 9 +++++++++ fs/ext3/super.c | 8 ++++++++ fs/ext4/super.c | 8 ++++++++ 3 files changed, 25 insertions(+) Index: linux-2.6.24-rc2-mm1/fs/ext2/super.c =================================================================== --- linux-2.6.24-rc2-mm1.orig/fs/ext2/super.c 2007-11-14 11:08:36.224011551 -0800 +++ linux-2.6.24-rc2-mm1/fs/ext2/super.c 2007-11-14 12:19:30.425593698 -0800 @@ -171,6 +171,12 @@ static void init_once(struct kmem_cache inode_init_once(&ei->vfs_inode); } +static void *ext2_get_inodes(struct kmem_cache *s, int nr, void **v) +{ + return fs_get_inodes(s, nr, v, + offsetof(struct ext2_inode_info, vfs_inode)); +} + static int init_inodecache(void) { ext2_inode_cachep = kmem_cache_create("ext2_inode_cache", @@ -180,6 +186,9 @@ static int init_inodecache(void) init_once); if (ext2_inode_cachep == NULL) return -ENOMEM; + + kmem_cache_setup_defrag(ext2_inode_cachep, + ext2_get_inodes, kick_inodes); return 0; } Index: linux-2.6.24-rc2-mm1/fs/ext3/super.c =================================================================== --- linux-2.6.24-rc2-mm1.orig/fs/ext3/super.c 2007-11-14 11:08:36.228011618 -0800 +++ linux-2.6.24-rc2-mm1/fs/ext3/super.c 2007-11-14 12:19:30.458593321 -0800 @@ -484,6 +484,12 @@ static void init_once(struct kmem_cache inode_init_once(&ei->vfs_inode); } +static void *ext3_get_inodes(struct kmem_cache *s, int nr, void **v) +{ + return fs_get_inodes(s, nr, v, + offsetof(struct ext3_inode_info, vfs_inode)); +} + static int init_inodecache(void) { ext3_inode_cachep = kmem_cache_create("ext3_inode_cache", @@ -493,6 +499,8 @@ static int init_inodecache(void) init_once); if (ext3_inode_cachep == NULL) return -ENOMEM; + kmem_cache_setup_defrag(ext3_inode_cachep, + ext3_get_inodes, kick_inodes); return 0; } Index: linux-2.6.24-rc2-mm1/fs/ext4/super.c =================================================================== --- linux-2.6.24-rc2-mm1.orig/fs/ext4/super.c 2007-11-14 11:08:36.252011333 -0800 +++ linux-2.6.24-rc2-mm1/fs/ext4/super.c 2007-11-14 12:19:30.485842935 -0800 @@ -600,6 +600,12 @@ static void init_once(struct kmem_cache inode_init_once(&ei->vfs_inode); } +static void *ext4_get_inodes(struct kmem_cache *s, int nr, void **v) +{ + return fs_get_inodes(s, nr, v, + offsetof(struct ext4_inode_info, vfs_inode)); +} + static int init_inodecache(void) { ext4_inode_cachep = kmem_cache_create("ext4_inode_cache", @@ -609,6 +615,8 @@ static int init_inodecache(void) init_once); if (ext4_inode_cachep == NULL) return -ENOMEM; + kmem_cache_setup_defrag(ext4_inode_cachep, + ext4_get_inodes, kick_inodes); return 0; }