On Fri, Jul 27, 2007 at 11:51:56AM +0400, Alex Tomas wrote:

quoted

Secondly, apart from delalloc, XFS cannot use the generic code paths
for writeback because unwritten extent conversion also requires
custom I/O completion handlers. Given that __mpage_writepage() only
calls ->writepage when it is confused, XFS simply cannot use this
API.

this doesn't mean fs/mpage.c should go, right?

mpage.c read side is fine for every block based filesystem I know.
mpage.c write side is fine for every simple (non-delalloc, non-unwritten
extent, etc) filesystem.  So it surely shouldn't go.

I didn't say "generic", see Subject: :)

then it shouldn't be in generic code.