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    SubjectRe: [patch 08/10] shmem: inode defragmentation support

    On May 18 2007 11:10, clameter@sgi.com wrote:
    >
    >Index: slub/mm/shmem.c
    >===================================================================
    >--- slub.orig/mm/shmem.c 2007-05-18 00:54:30.000000000 -0700
    >+++ slub/mm/shmem.c 2007-05-18 01:02:26.000000000 -0700

    Do we need *this*? (compare procfs)

    I believe that shmfs's inodes remain "more" in memory than those of
    procfs. That is, procfs ones can find their way out (we can regenerate
    it), while shmfs/tmpfs/ramfs/etc. should not do that (we'd lose the
    file).

    >@@ -2337,11 +2337,22 @@ static void init_once(void *foo, struct
    > #endif
    > }
    >
    >+static void *shmem_get_inodes(struct kmem_cache *s, int nr, void **v)
    >+{
    >+ return fs_get_inodes(s, nr, v,
    >+ offsetof(struct shmem_inode_info, vfs_inode));
    >+}
    >+
    >+static struct kmem_cache_ops shmem_kmem_cache_ops = {
    >+ .get = shmem_get_inodes,
    >+ .kick = kick_inodes
    >+};
    >+
    > static int init_inodecache(void)
    > {
    > shmem_inode_cachep = kmem_cache_create("shmem_inode_cache",
    > sizeof(struct shmem_inode_info),
    >- 0, 0, init_once, NULL);
    >+ 0, 0, init_once, &shmem_kmem_cache_ops);
    > if (shmem_inode_cachep == NULL)
    > return -ENOMEM;
    > return 0;
    >
    >--
    >-
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    Jan
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