summaryrefslogtreecommitdiffstats
path: root/fs/gfs2
diff options
context:
space:
mode:
authorSteven Whitehouse <swhiteho@redhat.com>2007-07-17 11:26:56 +0200
committerSteven Whitehouse <swhiteho@redhat.com>2007-08-14 11:33:15 +0200
commit6eefaf61f664053c1dd6534a994cab3f8bb07263 (patch)
treefddd9218cd7ac92f8f2b850c52d4b2dbca7fb568 /fs/gfs2
parent[GFS2] soft lockup in rgblk_search (diff)
downloadlinux-6eefaf61f664053c1dd6534a994cab3f8bb07263.tar.xz
linux-6eefaf61f664053c1dd6534a994cab3f8bb07263.zip
[GFS2] Fix incorrect return code in rgrp.c
The following patch fixes a bug where 0 was being used as a return code to indicate "nothing to do" when in fact 0 was a valid block location which might be returned by the function. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2')
-rw-r--r--fs/gfs2/rgrp.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index bb58e69fd977..ce48c4594ec8 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -867,7 +867,7 @@ static struct inode *try_rgrp_unlink(struct gfs2_rgrpd *rgd, u64 *last_unlinked)
break;
goal = rgblk_search(rgd, goal, GFS2_BLKST_UNLINKED,
GFS2_BLKST_UNLINKED);
- if (goal == 0)
+ if (goal == BFITNOENT)
break;
no_addr = goal + rgd->rd_data0;
goal++;
@@ -1316,7 +1316,7 @@ static u32 rgblk_search(struct gfs2_rgrpd *rgd, u32 goal,
bi->bi_len, blk, new_state);
}
- return (blk == BFITNOENT) ? 0 : (bi->bi_start * GFS2_NBBY) + blk;
+ return (blk == BFITNOENT) ? blk : (bi->bi_start * GFS2_NBBY) + blk;
}
/**
@@ -1396,6 +1396,7 @@ u64 gfs2_alloc_data(struct gfs2_inode *ip)
goal = rgd->rd_last_alloc_data;
blk = rgblk_search(rgd, goal, GFS2_BLKST_FREE, GFS2_BLKST_USED);
+ BUG_ON(blk == BFITNOENT);
rgd->rd_last_alloc_data = blk;
block = rgd->rd_data0 + blk;
@@ -1440,6 +1441,7 @@ u64 gfs2_alloc_meta(struct gfs2_inode *ip)
goal = rgd->rd_last_alloc_meta;
blk = rgblk_search(rgd, goal, GFS2_BLKST_FREE, GFS2_BLKST_USED);
+ BUG_ON(blk == BFITNOENT);
rgd->rd_last_alloc_meta = blk;
block = rgd->rd_data0 + blk;
@@ -1481,6 +1483,7 @@ u64 gfs2_alloc_di(struct gfs2_inode *dip, u64 *generation)
blk = rgblk_search(rgd, rgd->rd_last_alloc_meta,
GFS2_BLKST_FREE, GFS2_BLKST_DINODE);
+ BUG_ON(blk == BFITNOENT);
rgd->rd_last_alloc_meta = blk;