AcoSail/kernel_optimize_test
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xfs: set buf types when converting extent formats

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Conversion from local to extent format does not set the buffer type
correctly on the new extent buffer when a symlink data is moved out
of line.

Fix the symlink code and leave a comment in the generic bmap code
reminding us that the format-specific data copy needs to set the
destination buffer type appropriately.

cc: <stable@vger.kernel.org> # 3.10 to current
Tested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Dave Chinner 2015-01-22 09:30:06 +11:00 committed by Dave Chinner
parent f19b872b08
commit fe22d552b8
2 changed files with 7 additions and 1 deletions
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6
fs/xfs/libxfs/xfs_bmap.c
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@ -973,7 +973,11 @@ xfs_bmap_local_to_extents(
*firstblock = args.fsbno;
bp = xfs_btree_get_bufl(args.mp, tp, args.fsbno, 0);
/* initialise the block and copy the data */
/*
* Initialise the block and copy the data
*
* Note: init_fn must set the buffer log item type correctly!
*/
init_fn(tp, bp, ip, ifp);
/* account for the change in fork size and log everything */

2
fs/xfs/libxfs/xfs_symlink_remote.c
View File

@ -178,6 +178,8 @@ xfs_symlink_local_to_remote(
struct xfs_mount *mp = ip->i_mount;
char *buf;
xfs_trans_buf_set_type(tp, bp, XFS_BLFT_SYMLINK_BUF);
if (!xfs_sb_version_hascrc(&mp->m_sb)) {
bp->b_ops = NULL;
memcpy(bp->b_addr, ifp->if_u1.if_data, ifp->if_bytes);