diff options
| author | Dave Chinner <dchinner@redhat.com> | 2013-04-03 16:11:30 +1100 |
|---|---|---|
| committer | Ben Myers <bpm@sgi.com> | 2013-04-27 13:01:58 -0500 |
| commit | 61fe135c1dde112f483bba01d645debd881b5428 (patch) | |
| tree | 6ec57ed9730f555b29b94aeb6983b4ddbebffe51 /fs/xfs/xfs_btree.c | |
| parent | d75afeb3d302019527331520a2632b6614425b40 (diff) | |
| download | linux-61fe135c1dde112f483bba01d645debd881b5428.tar.gz | |
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_btree.c')
| -rw-r--r-- | fs/xfs/xfs_btree.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c index ec77036f13b5..8804b8a3c310 100644 --- a/fs/xfs/xfs_btree.c +++ b/fs/xfs/xfs_btree.c @@ -1282,7 +1282,7 @@ xfs_btree_log_keys( XFS_BTREE_TRACE_ARGBII(cur, bp, first, last); if (bp) { - xfs_trans_buf_set_type(cur->bc_tp, bp, XFS_BLF_BTREE_BUF); + xfs_trans_buf_set_type(cur->bc_tp, bp, XFS_BLFT_BTREE_BUF); xfs_trans_log_buf(cur->bc_tp, bp, xfs_btree_key_offset(cur, first), xfs_btree_key_offset(cur, last + 1) - 1); @@ -1307,7 +1307,7 @@ xfs_btree_log_recs( XFS_BTREE_TRACE_CURSOR(cur, XBT_ENTRY); XFS_BTREE_TRACE_ARGBII(cur, bp, first, last); - xfs_trans_buf_set_type(cur->bc_tp, bp, XFS_BLF_BTREE_BUF); + xfs_trans_buf_set_type(cur->bc_tp, bp, XFS_BLFT_BTREE_BUF); xfs_trans_log_buf(cur->bc_tp, bp, xfs_btree_rec_offset(cur, first), xfs_btree_rec_offset(cur, last + 1) - 1); @@ -1332,7 +1332,7 @@ xfs_btree_log_ptrs( struct xfs_btree_block *block = XFS_BUF_TO_BLOCK(bp); int level = xfs_btree_get_level(block); - xfs_trans_buf_set_type(cur->bc_tp, bp, XFS_BLF_BTREE_BUF); + xfs_trans_buf_set_type(cur->bc_tp, bp, XFS_BLFT_BTREE_BUF); xfs_trans_log_buf(cur->bc_tp, bp, xfs_btree_ptr_offset(cur, first, level), xfs_btree_ptr_offset(cur, last + 1, level) - 1); @@ -1407,7 +1407,7 @@ xfs_btree_log_block( (cur->bc_flags & XFS_BTREE_LONG_PTRS) ? loffsets : soffsets, nbits, &first, &last); - xfs_trans_buf_set_type(cur->bc_tp, bp, XFS_BLF_BTREE_BUF); + xfs_trans_buf_set_type(cur->bc_tp, bp, XFS_BLFT_BTREE_BUF); xfs_trans_log_buf(cur->bc_tp, bp, first, last); } else { xfs_trans_log_inode(cur->bc_tp, cur->bc_private.b.ip, |