diff options
| author | Dave Chinner <dchinner@redhat.com> | 2013-04-03 09:11:30 +0400 |
|---|---|---|
| committer | Ben Myers <bpm@sgi.com> | 2013-04-27 22:01:58 +0400 |
| commit | 61fe135c1dde112f483bba01d645debd881b5428 (patch) | |
| tree | 6ec57ed9730f555b29b94aeb6983b4ddbebffe51 /fs/xfs/xfs_dir2_leaf.c | |
| parent | d75afeb3d302019527331520a2632b6614425b40 (diff) | |
| download | linux-61fe135c1dde112f483bba01d645debd881b5428.tar.xz | |
xfs: buffer type overruns blf_flags field
The buffer type passed to log recvoery in the buffer log item
overruns the blf_flags field. I had assumed that flags field was a
32 bit value, and it turns out it is a unisgned short. Therefore
having 19 flags doesn't really work.
Convert the buffer type field to numeric value, and use the top 5
bits of the flags field for it. We currently have 17 types of
buffers, so using 5 bits gives us plenty of room for expansion in
future....
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_dir2_leaf.c')
| -rw-r--r-- | fs/xfs/xfs_dir2_leaf.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c index 84f4c9cfe95a..721ba2fe8e54 100644 --- a/fs/xfs/xfs_dir2_leaf.c +++ b/fs/xfs/xfs_dir2_leaf.c @@ -302,7 +302,7 @@ xfs_dir3_leaf_read( err = xfs_da_read_buf(tp, dp, fbno, mappedbno, bpp, XFS_DATA_FORK, &xfs_dir3_leaf1_buf_ops); if (!err && tp) - xfs_trans_buf_set_type(tp, *bpp, XFS_BLF_DIR_LEAF1_BUF); + xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_LEAF1_BUF); return err; } @@ -319,7 +319,7 @@ xfs_dir3_leafn_read( err = xfs_da_read_buf(tp, dp, fbno, mappedbno, bpp, XFS_DATA_FORK, &xfs_dir3_leafn_buf_ops); if (!err && tp) - xfs_trans_buf_set_type(tp, *bpp, XFS_BLF_DIR_LEAFN_BUF); + xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_LEAFN_BUF); return err; } @@ -364,10 +364,10 @@ xfs_dir3_leaf_init( ltp = xfs_dir2_leaf_tail_p(mp, leaf); ltp->bestcount = 0; bp->b_ops = &xfs_dir3_leaf1_buf_ops; - xfs_trans_buf_set_type(tp, bp, XFS_BLF_DIR_LEAF1_BUF); + xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DIR_LEAF1_BUF); } else { bp->b_ops = &xfs_dir3_leafn_buf_ops; - xfs_trans_buf_set_type(tp, bp, XFS_BLF_DIR_LEAFN_BUF); + xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DIR_LEAFN_BUF); } } @@ -488,7 +488,7 @@ xfs_dir2_block_to_leaf( * Fix up the block header, make it a data block. */ dbp->b_ops = &xfs_dir3_data_buf_ops; - xfs_trans_buf_set_type(tp, dbp, XFS_BLF_DIR_DATA_BUF); + xfs_trans_buf_set_type(tp, dbp, XFS_BLFT_DIR_DATA_BUF); if (hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC)) hdr->magic = cpu_to_be32(XFS_DIR2_DATA_MAGIC); else @@ -2197,7 +2197,7 @@ xfs_dir2_node_to_leaf( xfs_dir3_leaf_compact(args, &leafhdr, lbp); lbp->b_ops = &xfs_dir3_leaf1_buf_ops; - xfs_trans_buf_set_type(tp, lbp, XFS_BLF_DIR_LEAF1_BUF); + xfs_trans_buf_set_type(tp, lbp, XFS_BLFT_DIR_LEAF1_BUF); leafhdr.magic = (leafhdr.magic == XFS_DIR2_LEAFN_MAGIC) ? XFS_DIR2_LEAF1_MAGIC : XFS_DIR3_LEAF1_MAGIC; |