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authorBob Peterson <rpeterso@redhat.com>2008-01-28 17:20:26 -0600
committerSteven Whitehouse <swhiteho@redhat.com>2008-03-31 10:40:07 +0100
commit6bdd9be628fa5f4dd14eb89ebddc12840d684277 (patch)
tree7a995fa251a55af6f7b185810a24a7ebb5d00a33
parent3ad62e87cd38817361e165cf4ad496ab76e19e81 (diff)
downloadop-kernel-dev-6bdd9be628fa5f4dd14eb89ebddc12840d684277.zip
op-kernel-dev-6bdd9be628fa5f4dd14eb89ebddc12840d684277.tar.gz
[GFS2] Allocate gfs2_rgrpd from slab memory
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>
-rw-r--r--fs/gfs2/main.c10
-rw-r--r--fs/gfs2/rgrp.c4
-rw-r--r--fs/gfs2/util.c1
-rw-r--r--fs/gfs2/util.h1
4 files changed, 14 insertions, 2 deletions
diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c
index 9c7765c..053e2eb 100644
--- a/fs/gfs2/main.c
+++ b/fs/gfs2/main.c
@@ -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 @@ fail_unregister:
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);
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 7b9d6f1..dc7e83e 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -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;
diff --git a/fs/gfs2/util.c b/fs/gfs2/util.c
index 424a077..fe9c28e 100644
--- a/fs/gfs2/util.c
+++ b/fs/gfs2/util.c
@@ -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)
{
diff --git a/fs/gfs2/util.h b/fs/gfs2/util.h
index 28938a4..ac0c567 100644
--- a/fs/gfs2/util.h
+++ b/fs/gfs2/util.h
@@ -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)
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