Commit d3b689d7 authored by John Garry's avatar John Garry Committed by Chandan Babu R
Browse files

xfs: Fix xfs_flush_unmap_range() range for RT 



Currently xfs_flush_unmap_range() does unmap for a full RT extent range,
which we also want to ensure is clean and idle.

This code change is originally from Dave Chinner.

Reviewed-by: default avatarChristoph Hellwig <hch@lst.de&gt;4>
Reviewed-by: default avatarDarrick J. Wong <djwong@kernel.org>
Signed-off-by: default avatarJohn Garry <john.g.garry@oracle.com>
Signed-off-by: default avatarChandan Babu R <chandanbabu@kernel.org>
parent d40c2865

fs/xfs/xfs_bmap_util.c

+8 −4
Original line number Diff line number Diff line
@@ -808,14 +808,18 @@ xfs_flush_unmap_range( 
	xfs_off_t		offset,

	xfs_off_t		len)

{

	struct xfs_mount	*mp = ip->i_mount;

	struct inode		*inode = VFS_I(ip);

	xfs_off_t		rounding, start, end;

	int			error;



	rounding = max_t(xfs_off_t, mp->m_sb.sb_blocksize, PAGE_SIZE);

	start = round_down(offset, rounding);

	end = round_up(offset + len, rounding) - 1;

	/*

	 * Make sure we extend the flush out to extent alignment

	 * boundaries so any extent range overlapping the start/end

	 * of the modification we are about to do is clean and idle.

	 */

	rounding = max_t(xfs_off_t, xfs_inode_alloc_unitsize(ip), PAGE_SIZE);

	start = rounddown_64(offset, rounding);

	end = roundup_64(offset + len, rounding) - 1;



	error = filemap_write_and_wait_range(inode->i_mapping, start, end);

	if (error)