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authorBob Peterson <rpeterso@redhat.com>2012-04-11 12:59:32 -0400
committerSteven Whitehouse <swhiteho@redhat.com>2012-04-24 16:44:29 +0100
commit36f5580be1dde43eb94ce4d58bc20e493be09f09 (patch)
tree5d8c2ce2b52d4ac806d04611b829e394b4365969 /fs/gfs2/rgrp.c
parentb120193e360f6c22b0c9424c928f2df40ba0ffdb (diff)
GFS2: Use slab for block reservation memory
This patch changes block reservations so it uses slab storage. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/rgrp.c')
-rw-r--r--fs/gfs2/rgrp.c19
1 files changed, 11 insertions, 8 deletions
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 3df65c9ab73b..69fa32fbf3fb 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -1002,11 +1002,13 @@ struct gfs2_qadata *gfs2_qadata_get(struct gfs2_inode *ip)
* Returns: the struct gfs2_qadata
*/
-static struct gfs2_blkreserv *gfs2_blkrsv_get(struct gfs2_inode *ip)
+static int gfs2_blkrsv_get(struct gfs2_inode *ip)
{
BUG_ON(ip->i_res != NULL);
- ip->i_res = kzalloc(sizeof(struct gfs2_blkreserv), GFP_NOFS);
- return ip->i_res;
+ ip->i_res = kmem_cache_zalloc(gfs2_rsrv_cachep, GFP_NOFS);
+ if (!ip->i_res)
+ return -ENOMEM;
+ return 0;
}
/**
@@ -1164,7 +1166,7 @@ static int get_local_rgrp(struct gfs2_inode *ip, u64 *last_unlinked)
static void gfs2_blkrsv_put(struct gfs2_inode *ip)
{
BUG_ON(ip->i_res == NULL);
- kfree(ip->i_res);
+ kmem_cache_free(gfs2_rsrv_cachep, ip->i_res);
ip->i_res = NULL;
}
@@ -1179,14 +1181,15 @@ int gfs2_inplace_reserve(struct gfs2_inode *ip, u32 requested)
{
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct gfs2_blkreserv *rs;
- int error = 0;
+ int error;
u64 last_unlinked = NO_BLOCK;
int tries = 0;
- rs = gfs2_blkrsv_get(ip);
- if (!rs)
- return -ENOMEM;
+ error = gfs2_blkrsv_get(ip);
+ if (error)
+ return error;
+ rs = ip->i_res;
rs->rs_requested = requested;
if (gfs2_assert_warn(sdp, requested)) {
error = -EINVAL;