Commit 9a025a08 authored Jul 17, 2014 by Wang Shilong Committed by Chris Mason Aug 19, 2014

Btrfs: fix wrong write range for filemap_fdatawrite_range()



filemap_fdatawrite_range() expect the third arg to be @end
not @len, fix it.

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>

parent 3a7d55c8

fs/btrfs/inode.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -7533,7 +7533,8 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb,
		count = iov_iter_count(iter);
		if (test_bit(BTRFS_INODE_HAS_ASYNC_EXTENT,
		&BTRFS_I(inode)->runtime_flags))
		filemap_fdatawrite_range(inode->i_mapping, offset, count);
		filemap_fdatawrite_range(inode->i_mapping, offset,
		offset + count - 1);

		if (rw & WRITE) {
		/*