From 7644bd988d911168c80599bc034bb489dc851dcf Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Mon, 14 May 2018 06:34:35 -0700 Subject: xfs: teach xfs_bmapi_remap to accept some bmapi flags Teach xfs_bmapi_remap how to map in unwritten extent and to skip rmap updates. This enables us to rebuild real and unwritten extents from the rmapbt. Signed-off-by: Darrick J. Wong Reviewed-by: Brian Foster --- fs/xfs/libxfs/xfs_bmap.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'fs/xfs/libxfs/xfs_bmap.c') diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index b63e15a114f3..7b0e2b551e23 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -4543,7 +4543,10 @@ xfs_bmapi_remap( ASSERT(len > 0); ASSERT(len <= (xfs_filblks_t)MAXEXTLEN); ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); - ASSERT(!(flags & ~(XFS_BMAPI_ATTRFORK))); + ASSERT(!(flags & ~(XFS_BMAPI_ATTRFORK | XFS_BMAPI_PREALLOC | + XFS_BMAPI_NORMAP))); + ASSERT((flags & (XFS_BMAPI_ATTRFORK | XFS_BMAPI_PREALLOC)) != + (XFS_BMAPI_ATTRFORK | XFS_BMAPI_PREALLOC)); if (unlikely(XFS_TEST_ERROR( (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS && @@ -4581,7 +4584,10 @@ xfs_bmapi_remap( got.br_startoff = bno; got.br_startblock = startblock; got.br_blockcount = len; - got.br_state = XFS_EXT_NORM; + if (flags & XFS_BMAPI_PREALLOC) + got.br_state = XFS_EXT_UNWRITTEN; + else + got.br_state = XFS_EXT_NORM; error = xfs_bmap_add_extent_hole_real(tp, ip, whichfork, &icur, &cur, &got, &firstblock, dfops, &logflags, flags); -- cgit v1.2.3