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authorSteven Whitehouse <swhiteho@redhat.com>2011-09-02 16:08:09 +0100
committerSteven Whitehouse <swhiteho@redhat.com>2011-10-21 12:39:39 +0100
commit70b0c3656f12964a6dac104214c904c66e626058 (patch)
treef58b4b67d6343d5b48c6335fb93ccbe6ed61e1c0 /fs/gfs2/bmap.c
parentd56fa8a1c17b68274349fc852f634af99c0c4671 (diff)
downloadop-kernel-dev-70b0c3656f12964a6dac104214c904c66e626058.zip
op-kernel-dev-70b0c3656f12964a6dac104214c904c66e626058.tar.gz
GFS2: Use cached rgrp in gfs2_rlist_add()
Each block which is deallocated, requires a call to gfs2_rlist_add() and each of those calls was calling gfs2_blk2rgrpd() in order to figure out which rgrp the block belonged in. This can be speeded up by making use of the rgrp cached in the inode. We also reset this cached rgrp in case the block has changed rgrp. This should provide a big reduction in gfs2_blk2rgrpd() calls during deallocation. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/bmap.c')
-rw-r--r--fs/gfs2/bmap.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 9d3a0c2..22ad413 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -724,7 +724,7 @@ static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh,
blen++;
else {
if (bstart)
- gfs2_rlist_add(sdp, &rlist, bstart);
+ gfs2_rlist_add(ip, &rlist, bstart);
bstart = bn;
blen = 1;
@@ -732,7 +732,7 @@ static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh,
}
if (bstart)
- gfs2_rlist_add(sdp, &rlist, bstart);
+ gfs2_rlist_add(ip, &rlist, bstart);
else
goto out; /* Nothing to do */
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