From 22725ce4e4a00fbc37694e25dc5c8acef8ad1c28 Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Mon, 19 Dec 2016 15:13:26 -0800 Subject: vfs: fix isize/pos/len checks for reflink & dedupe Strengthen the checking of pos/len vs. i_size, clarify the return values for the clone prep function, and remove pointless code. Reviewed-by: Christoph Hellwig Signed-off-by: Darrick J. Wong Signed-off-by: Al Viro --- fs/ocfs2/refcounttree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/ocfs2') diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c index d171d2c..f8933cb 100644 --- a/fs/ocfs2/refcounttree.c +++ b/fs/ocfs2/refcounttree.c @@ -4834,7 +4834,7 @@ int ocfs2_reflink_remap_range(struct file *file_in, ret = vfs_clone_file_prep_inodes(inode_in, pos_in, inode_out, pos_out, &len, is_dedupe); - if (ret || len == 0) + if (ret <= 0) goto out_unlock; /* Lock out changes to the allocation maps and remap. */ -- cgit v1.1