On 2024/8/15 14:00, Christoph Hellwig wrote: > On Wed, Aug 14, 2024 at 03:08:25PM +0800, Zhang Yi wrote: >>> iomap_invalidate_folio when it actually is needed? >>> >> >> Therefore, you mean current strategy of allocating ifs is to try to delay >> the allocation time as much as possible? > > Yes. > >> The advantage is that it could >> avoid some unnecessary allocation operations if the whole folio are >> invalidated before write back. right? > > Yes. And hopefully we can also get to the point where we don't need > to actually allocate it for writeback. I've been wanting to do that > for a while but never got it. > Yeah, this sounds like a good idea. Thanks, Yi.
