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| author | Christoph Hellwig <hch@infradead.org> | 2008-10-30 17:14:43 +1100 |
|---|---|---|
| committer | Lachlan McIlroy <lachlan@sgi.com> | 2008-10-30 17:14:43 +1100 |
| commit | 4e8938feba770b583fb13d249c17943961731a3e (patch) | |
| tree | 311411b8561b8c9222996ab72ddcb4303be3d096 /fs/xfs/xfs_bmap.c | |
| parent | 7cc95a821df8f09a5d37a923cf8c3a7c3ee00c29 (diff) | |
| download | linux-4e8938feba770b583fb13d249c17943961731a3e.tar.gz linux-4e8938feba770b583fb13d249c17943961731a3e.tar.bz2 linux-4e8938feba770b583fb13d249c17943961731a3e.zip | |
[XFS] Move XFS_BMAP_SANITY_CHECK out of line.
Move the XFS_BMAP_SANITY_CHECK macro out of line and make it a properly
typed function. Also pass the xfs_buf for the btree block instead of just
the btree block header, as we will need some additional information for it
to implement CRC checking of btree blocks.
SGI-PV: 988146
SGI-Modid: xfs-linux-melb:xfs-kern:32301a
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Donald Douwsma <donaldd@sgi.com>
Signed-off-by: David Chinner <david@fromorbit.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_bmap.c')
| -rw-r--r-- | fs/xfs/xfs_bmap.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c index 7796a0c140eb..db289050692f 100644 --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -4524,6 +4524,22 @@ xfs_bmap_one_block( return rval; } +STATIC int +xfs_bmap_sanity_check( + struct xfs_mount *mp, + struct xfs_buf *bp, + int level) +{ + struct xfs_btree_block *block = XFS_BUF_TO_BLOCK(bp); + + if (be32_to_cpu(block->bb_magic) != XFS_BMAP_MAGIC || + be16_to_cpu(block->bb_level) != level || + be16_to_cpu(block->bb_numrecs) == 0 || + be16_to_cpu(block->bb_numrecs) > mp->m_bmap_dmxr[level != 0]) + return 0; + return 1; +} + /* * Read in the extents to if_extents. * All inode fields are set up by caller, we just traverse the btree @@ -4575,7 +4591,7 @@ xfs_bmap_read_extents( return error; block = XFS_BUF_TO_BLOCK(bp); XFS_WANT_CORRUPTED_GOTO( - XFS_BMAP_SANITY_CHECK(mp, block, level), + xfs_bmap_sanity_check(mp, bp, level), error0); if (level == 0) break; @@ -4611,7 +4627,7 @@ xfs_bmap_read_extents( goto error0; } XFS_WANT_CORRUPTED_GOTO( - XFS_BMAP_SANITY_CHECK(mp, block, 0), + xfs_bmap_sanity_check(mp, bp, 0), error0); /* * Read-ahead the next leaf block, if any. @@ -6287,7 +6303,7 @@ xfs_bmap_check_leaf_extents( goto error_norelse; block = XFS_BUF_TO_BLOCK(bp); XFS_WANT_CORRUPTED_GOTO( - XFS_BMAP_SANITY_CHECK(mp, block, level), + xfs_bmap_sanity_check(mp, bp, level), error0); if (level == 0) break; |