Support defragmentation for extX filesystem inodes
Signed-off-by: Christoph Lameter <[email protected]>
---
fs/ext2/super.c | 9 +++++++++
fs/ext3/super.c | 8 ++++++++
fs/ext4/super.c | 8 ++++++++
3 files changed, 25 insertions(+)
Index: linux-2.6/fs/ext2/super.c
===================================================================
--- linux-2.6.orig/fs/ext2/super.c 2007-08-28 19:48:06.000000000 -0700
+++ linux-2.6/fs/ext2/super.c 2007-08-28 20:16:05.000000000 -0700
@@ -168,6 +168,12 @@ static void init_once(void * foo, struct
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",
@@ -177,6 +183,9 @@ 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/fs/ext3/super.c
===================================================================
--- linux-2.6.orig/fs/ext3/super.c 2007-08-28 19:48:06.000000000 -0700
+++ linux-2.6/fs/ext3/super.c 2007-08-28 20:16:05.000000000 -0700
@@ -484,6 +484,12 @@ static void init_once(void * foo, struct
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/fs/ext4/super.c
===================================================================
--- linux-2.6.orig/fs/ext4/super.c 2007-08-28 19:48:06.000000000 -0700
+++ linux-2.6/fs/ext4/super.c 2007-08-28 20:16:05.000000000 -0700
@@ -535,6 +535,12 @@ static void init_once(void * foo, struct
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",
@@ -544,6 +550,8 @@ 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;
}
--
-
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