From: Eric Sandeen Date: Wed, 9 Dec 2020 02:59:12 +0000 (-0800) Subject: xfs: don't catch dax+reflink inodes as corruption in verifier X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=207ddc0ef4f413ab1f4e0c1fcab2226425dec293;p=linux.git xfs: don't catch dax+reflink inodes as corruption in verifier We don't yet support dax on reflinked files, but that is in the works. Further, having the flag set does not automatically mean that the inode is actually "in the CPU direct access state," which depends on several other conditions in addition to the flag being set. As such, we should not catch this as corruption in the verifier - simply not actually enabling S_DAX on reflinked files is enough for now. Fixes: 4f435ebe7d04 ("xfs: don't mix reflink and DAX mode for now") Signed-off-by: Eric Sandeen Reviewed-by: Christoph Hellwig [darrick: fix the scrubber too] Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c index c667c63f2cb00..4d7410e49db41 100644 --- a/fs/xfs/libxfs/xfs_inode_buf.c +++ b/fs/xfs/libxfs/xfs_inode_buf.c @@ -547,10 +547,6 @@ xfs_dinode_verify( if ((flags2 & XFS_DIFLAG2_REFLINK) && (flags & XFS_DIFLAG_REALTIME)) return __this_address; - /* don't let reflink and dax mix */ - if ((flags2 & XFS_DIFLAG2_REFLINK) && (flags2 & XFS_DIFLAG2_DAX)) - return __this_address; - /* COW extent size hint validation */ fa = xfs_inode_validate_cowextsize(mp, be32_to_cpu(dip->di_cowextsize), mode, flags, flags2); diff --git a/fs/xfs/scrub/inode.c b/fs/xfs/scrub/inode.c index bb25ff1b770d1..faf65eb5bd310 100644 --- a/fs/xfs/scrub/inode.c +++ b/fs/xfs/scrub/inode.c @@ -185,10 +185,6 @@ xchk_inode_flags2( if ((flags & XFS_DIFLAG_REALTIME) && (flags2 & XFS_DIFLAG2_REFLINK)) goto bad; - /* dax and reflink make no sense, currently */ - if ((flags2 & XFS_DIFLAG2_DAX) && (flags2 & XFS_DIFLAG2_REFLINK)) - goto bad; - /* no bigtime iflag without the bigtime feature */ if (xfs_dinode_has_bigtime(dip) && !xfs_sb_version_hasbigtime(&mp->m_sb))