From: Steven Whitehouse Date: Tue, 17 Jul 2007 09:26:56 +0000 (+0100) Subject: [GFS2] Fix incorrect return code in rgrp.c X-Git-Tag: v2.6.23-rc4~135^2~3 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=6eefaf61f664053c1dd6534a994cab3f8bb07263;p=linux-2.6-omap-h63xx.git [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 --- diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c index bb58e69fd97..ce48c4594ec 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;