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[GFS2] Allocate gfs2_rgrpd from slab memory

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This patch moves the gfs2_rgrpd structure to its own slab
memory.  This makes it easier to control and monitor, and
yields less memory fragmentation.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Bob Peterson 2008-01-28 17:20:26 -06:00 committed by Steven Whitehouse
parent 3ad62e87cd
commit 6bdd9be628
4 changed files with 14 additions and 2 deletions
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10
fs/gfs2/main.c
View file

@ -89,6 +89,12 @@ static int __init init_gfs2_fs(void)
if (!gfs2_bufdata_cachep)
goto fail;
gfs2_rgrpd_cachep = kmem_cache_create("gfs2_rgrpd",
sizeof(struct gfs2_rgrpd),
0, 0, NULL);
if (!gfs2_rgrpd_cachep)
goto fail;
error = register_filesystem(&gfs2_fs_type);
if (error)
goto fail;
@ -108,6 +114,9 @@ static int __init init_gfs2_fs(void)
fail:
gfs2_glock_exit();
if (gfs2_rgrpd_cachep)
kmem_cache_destroy(gfs2_rgrpd_cachep);
if (gfs2_bufdata_cachep)
kmem_cache_destroy(gfs2_bufdata_cachep);
@ -133,6 +142,7 @@ static void __exit exit_gfs2_fs(void)
unregister_filesystem(&gfs2_fs_type);
unregister_filesystem(&gfs2meta_fs_type);
kmem_cache_destroy(gfs2_rgrpd_cachep);
kmem_cache_destroy(gfs2_bufdata_cachep);
kmem_cache_destroy(gfs2_inode_cachep);
kmem_cache_destroy(gfs2_glock_cachep);

4
fs/gfs2/rgrp.c
View file

@ -353,7 +353,7 @@ static void clear_rgrpdi(struct gfs2_sbd *sdp)
}
kfree(rgd->rd_bits);
kfree(rgd);
kmem_cache_free(gfs2_rgrpd_cachep, rgd);
}
}
@ -516,7 +516,7 @@ static int read_rindex_entry(struct gfs2_inode *ip,
return error;
}
rgd = kzalloc(sizeof(struct gfs2_rgrpd), GFP_NOFS);
rgd = kmem_cache_zalloc(gfs2_rgrpd_cachep, GFP_NOFS);
error = -ENOMEM;
if (!rgd)
return error;

1
fs/gfs2/util.c
View file

@ -25,6 +25,7 @@
struct kmem_cache *gfs2_glock_cachep __read_mostly;
struct kmem_cache *gfs2_inode_cachep __read_mostly;
struct kmem_cache *gfs2_bufdata_cachep __read_mostly;
struct kmem_cache *gfs2_rgrpd_cachep __read_mostly;
void gfs2_assert_i(struct gfs2_sbd *sdp)
{

1
fs/gfs2/util.h
View file

@ -147,6 +147,7 @@ gfs2_io_error_bh_i((sdp), (bh), __FUNCTION__, __FILE__, __LINE__);
extern struct kmem_cache *gfs2_glock_cachep;
extern struct kmem_cache *gfs2_inode_cachep;
extern struct kmem_cache *gfs2_bufdata_cachep;
extern struct kmem_cache *gfs2_rgrpd_cachep;
static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt,
unsigned int *p)