Support procfs inode defragmentation

Cc: Alexey Dobriyan
Reviewed-by: Rik van Riel
Signed-off-by: Christoph Lameter
---
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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