Commit 46afb062 authored Nov 02, 2020 by Darrick J. Wong

xfs: only flush the unshared range in xfs_reflink_unshare

There's no reason to flush an entire file when we're unsharing part of
a file. Therefore, only initiate writeback on the selected range.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>

parent c1f6b1ac

fs/xfs/xfs_reflink.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -1502,7 +1502,8 @@ xfs_reflink_unshare(
		&xfs_buffered_write_iomap_ops);
		if (error)
		goto out;
		error = filemap_write_and_wait(inode->i_mapping);

		error = filemap_write_and_wait_range(inode->i_mapping, offset, len);
		if (error)
		goto out;