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Commit dcf9585a authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Darrick J. Wong
Browse files

xfs: return the converted extent in __xfs_reflink_convert_cow 



We'll need it for the direct I/O code.  Also rename the function to
xfs_reflink_convert_cow_extent to describe it a bit better.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
parent f13eb205

fs/xfs/xfs_reflink.c

+5 −6
Original line number Diff line number Diff line
@@ -332,20 +332,19 @@ xfs_reflink_convert_cow_extent( 
	xfs_filblks_t			count_fsb,

	struct xfs_defer_ops		*dfops)

{

	struct xfs_bmbt_irec		irec = *imap;

	xfs_fsblock_t			first_block;

	int				nimaps = 1;



	if (imap->br_state == XFS_EXT_NORM)

		return 0;



	xfs_trim_extent(&irec, offset_fsb, count_fsb);

	trace_xfs_reflink_convert_cow(ip, &irec);

	if (irec.br_blockcount == 0)

	xfs_trim_extent(imap, offset_fsb, count_fsb);

	trace_xfs_reflink_convert_cow(ip, imap);

	if (imap->br_blockcount == 0)

		return 0;

	return xfs_bmapi_write(NULL, ip, irec.br_startoff, irec.br_blockcount,

	return xfs_bmapi_write(NULL, ip, imap->br_startoff, imap->br_blockcount,

			XFS_BMAPI_COWFORK | XFS_BMAPI_CONVERT, &first_block,

			0, &irec, &nimaps, dfops);

			0, imap, &nimaps, dfops);

}



/* Convert all of the unwritten CoW extents in a file's range to real ones. */