On Mon, Oct 15, 2018 at 08:20:48PM -0700, Darrick J. Wong wrote: > From: Darrick J. Wong <darrick.wong@xxxxxxxxxx> > > Prior to remapping blocks, it is necessary to remove pages from the > destination file's page cache. Unfortunately, the truncation is not > aggressive enough -- if page size > block size, we'll end up zeroing > subpage blocks instead of removing them. So, round the start offset > down and the end offset up to page boundaries. We already wrote all > the dirty data so the larger range shouldn't be a problem. > > Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx> > Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx> Looks fine, Reviewed-by: Christoph Hellwig <hch@xxxxxx>
