| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.18 010/151] xfs: set buf types when converting extent formats | Date | Tue, 3 Mar 2015 22:12:24 -0800 |
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3.18-stable review patch. If anyone has any objections, please let me know.
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From: Dave Chinner <dchinner@redhat.com>
commit fe22d552b82d7cc7de1851233ae8bef579198637 upstream.
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.
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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- fs/xfs/libxfs/xfs_bmap.c | 6 +++++- fs/xfs/libxfs/xfs_symlink_remote.c | 2 ++ 2 files changed, 7 insertions(+), 1 deletion(-)
--- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -976,7 +976,11 @@ 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 */ --- a/fs/xfs/libxfs/xfs_symlink_remote.c +++ b/fs/xfs/libxfs/xfs_symlink_remote.c @@ -180,6 +180,8 @@ 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);
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