> STATIC int
> xfs_reflink_remap_prep(
> @@ -1302,6 +1303,30 @@ xfs_reflink_remap_prep(
> /* Zap any page cache for the destination file's range. */
> truncate_inode_pages_range(&inode_out->i_data, pos_out,
> PAGE_ALIGN(pos_out + len) - 1);
> +
> + /* If we're altering the file contents... */
> + if (!is_dedupe) {
Nipick - even a clone might not alter the file content, we just have
no guarantee. So maybe change the comment to:
/* If we may alter the file contents.. */
Otherwise looks fine:
Reviewed-by: Christoph Hellwig <hch@xxxxxx>