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| author | Christoph Hellwig <hch@lst.de> | 2011-07-08 14:34:18 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2011-07-08 14:34:18 +0200 |
| commit | dec58f1dfd30a3c3e9dadc808692f4e5cd922745 (patch) | |
| tree | 42af1ab01493325e860e5cbf4245c6b39dd6e951 /fs/xfs/xfs_alloc_btree.c | |
| parent | dbcdde3e76f45d56c4a30ca6c5d69b6d473d3fd1 (diff) | |
| download | blackbird-obmc-linux-dec58f1dfd30a3c3e9dadc808692f4e5cd922745.tar.gz blackbird-obmc-linux-dec58f1dfd30a3c3e9dadc808692f4e5cd922745.zip | |
xfs: work around bogus gcc warning in xfs_allocbt_init_cursor
GCC 4.6 complains about an array subscript is above array bounds when
using the btree index to index into the agf_levels array. The only
two indices passed in are 0 and 1, and we have an assert insuring that.
Replace the trick of using the array index directly with using constants
in the already existing branch for assigning the XFS_BTREE_LASTREC_UPDATE
flag.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/xfs/xfs_alloc_btree.c')
| -rw-r--r-- | fs/xfs/xfs_alloc_btree.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/xfs/xfs_alloc_btree.c b/fs/xfs/xfs_alloc_btree.c index 2b3518826a69..e277777a7cf9 100644 --- a/fs/xfs/xfs_alloc_btree.c +++ b/fs/xfs/xfs_alloc_btree.c @@ -427,13 +427,16 @@ xfs_allocbt_init_cursor( cur->bc_tp = tp; cur->bc_mp = mp; - cur->bc_nlevels = be32_to_cpu(agf->agf_levels[btnum]); cur->bc_btnum = btnum; cur->bc_blocklog = mp->m_sb.sb_blocklog; - cur->bc_ops = &xfs_allocbt_ops; - if (btnum == XFS_BTNUM_CNT) + + if (btnum == XFS_BTNUM_CNT) { + cur->bc_nlevels = be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]); cur->bc_flags = XFS_BTREE_LASTREC_UPDATE; + } else { + cur->bc_nlevels = be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]); + } cur->bc_private.a.agbp = agbp; cur->bc_private.a.agno = agno; |
