[patch 16/21] Filesystem: /proc filesystem support for slab defrag

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Support procfs inode defragmentation

Cc: Alexey Dobriyan <adobriyan@xxxxx>
Reviewed-by: Rik van Riel <riel@xxxxxxxxxx>
Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
---
 fs/proc/inode.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 82b3a1b..5bc8d23 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -104,6 +104,12 @@ static void init_once(struct kmem_cache * cachep, void *foo)
 	inode_init_once(&ei->vfs_inode);
 }
 
+static void *proc_get_inodes(struct kmem_cache *s, int nr, void **v)
+{
+	return fs_get_inodes(s, nr, v,
+		offsetof(struct proc_inode, vfs_inode));
+};
+
 int __init proc_init_inodecache(void)
 {
 	proc_inode_cachep = kmem_cache_create("proc_inode_cache",
@@ -111,6 +117,8 @@ int __init proc_init_inodecache(void)
 					     0, (SLAB_RECLAIM_ACCOUNT|
 						SLAB_MEM_SPREAD|SLAB_PANIC),
 					     init_once);
+	kmem_cache_setup_defrag(proc_inode_cachep,
+				proc_get_inodes, kick_inodes);
 	return 0;
 }
 
-- 
1.5.4.4

-- 
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