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Go Back   Linux Archive > Redhat > Cluster Development

 
 
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Old 02-06-2008, 09:17 AM
 
Default Merge the rd_last_alloc_meta and rd_last_alloc_data fields

From: Steven Whitehouse <swhiteho@redhat.com>

We don't need to keep track of when we last allocated data
and metadata separately since the only thing thats important
when searching for a free block is whether its free or not,
which is independent from what type of block it is.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index a5153c5..5612c53 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -90,8 +90,7 @@ struct gfs2_rgrpd {
struct mutex rd_mutex;
u32 rd_free_clone;
struct gfs2_log_element rd_le;
- u32 rd_last_alloc_data;
- u32 rd_last_alloc_meta;
+ u32 rd_last_alloc;
struct gfs2_sbd *rd_sbd;
unsigned char rd_flags;
#define GFS2_RDF_CHECK 0x01 /* Need to check for unlinked inodes */
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 66193b4..cc28845 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -1422,11 +1422,11 @@ u64 gfs2_alloc_data(struct gfs2_inode *ip)
if (rgrp_contains_block(rgd, ip->i_goal))
goal = ip->i_goal - rgd->rd_data0;
else
- goal = rgd->rd_last_alloc_data;
+ goal = rgd->rd_last_alloc;

blk = rgblk_search(rgd, goal, GFS2_BLKST_FREE, GFS2_BLKST_USED);
BUG_ON(blk == BFITNOENT);
- rgd->rd_last_alloc_data = blk;
+ rgd->rd_last_alloc = blk;

block = rgd->rd_data0 + blk;
ip->i_goal = block;
@@ -1467,11 +1467,11 @@ u64 gfs2_alloc_meta(struct gfs2_inode *ip)
if (rgrp_contains_block(rgd, ip->i_goal))
goal = ip->i_goal - rgd->rd_data0;
else
- goal = rgd->rd_last_alloc_meta;
+ goal = rgd->rd_last_alloc;

blk = rgblk_search(rgd, goal, GFS2_BLKST_FREE, GFS2_BLKST_USED);
BUG_ON(blk == BFITNOENT);
- rgd->rd_last_alloc_meta = blk;
+ rgd->rd_last_alloc = blk;

block = rgd->rd_data0 + blk;
ip->i_goal = block;
@@ -1510,11 +1510,11 @@ u64 gfs2_alloc_di(struct gfs2_inode *dip, u64 *generation)
u32 blk;
u64 block;

- blk = rgblk_search(rgd, rgd->rd_last_alloc_meta,
+ blk = rgblk_search(rgd, rgd->rd_last_alloc,
GFS2_BLKST_FREE, GFS2_BLKST_DINODE);
BUG_ON(blk == BFITNOENT);

- rgd->rd_last_alloc_meta = blk;
+ rgd->rd_last_alloc = blk;

block = rgd->rd_data0 + blk;

--
1.5.1.2
 

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