Commit 2dc6e271 authored by Darrick J. Wong's avatar Darrick J. Wong Committed by Greg Kroah-Hartman

xfs: BMAPX shouldn't barf on inline-format directories

commit 6eadbf4c upstream.

When we're fulfilling a BMAPX request, jump out early if the data fork
is in local format.  This prevents us from hitting a debugging check in
bmapi_read and barfing errors back to userspace.  The on-disk extent
count check later isn't sufficient for IF_DELALLOC mode because da
extents are in memory and not on disk.
Signed-off-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: default avatarBrian Foster <bfoster@redhat.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 1ae26380
......@@ -583,9 +583,13 @@ xfs_getbmap(
}
break;
default:
/* Local format data forks report no extents. */
if (ip->i_d.di_format == XFS_DINODE_FMT_LOCAL) {
bmv->bmv_entries = 0;
return 0;
}
if (ip->i_d.di_format != XFS_DINODE_FMT_EXTENTS &&
ip->i_d.di_format != XFS_DINODE_FMT_BTREE &&
ip->i_d.di_format != XFS_DINODE_FMT_LOCAL)
ip->i_d.di_format != XFS_DINODE_FMT_BTREE)
return -EINVAL;
if (xfs_get_extsz_hint(ip) ||
......
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