On Tue, Jul 30, 2019 at 11:57:02AM -0400, Jerome Glisse wrote:
> Other user can also add page that are not coming from GUP but need to
> have a reference see __blkdev_direct_IO()
Except for the zero page case I mentioned in my last mail explicitly,
and the KVEC/PIPE type iov vecs from the
On Tue, Jul 30, 2019 at 12:25:57PM +0200, Christoph Hellwig wrote:
> On Mon, Jul 29, 2019 at 04:57:21PM -0400, Jerome Glisse wrote:
> > > All pages releases by bio_release_pages should come from
> > > get_get_user_pages, so I don't really see the point here.
> >
> > No they do not all comes from
On Mon, Jul 29, 2019 at 04:57:21PM -0400, Jerome Glisse wrote:
> > All pages releases by bio_release_pages should come from
> > get_get_user_pages, so I don't really see the point here.
>
> No they do not all comes from GUP for see various callers
> of bio_check_pages_dirty() for instance
On Tue, Jul 23, 2019 at 10:30:53PM -0700, Christoph Hellwig wrote:
> On Tue, Jul 23, 2019 at 09:25:09PM -0700, john.hubb...@gmail.com wrote:
> > From: John Hubbard
> >
> > In commit d241a95f3514 ("block: optionally mark pages dirty in
> > bio_release_pages"), new "bool mark_dirty" argument was
From: John Hubbard
In commit d241a95f3514 ("block: optionally mark pages dirty in
bio_release_pages"), new "bool mark_dirty" argument was added to
bio_release_pages.
In upcoming work, another bool argument (to indicate that the pages came
from get_user_pages) is going to be added. That's one
On Tue, Jul 23, 2019 at 09:25:09PM -0700, john.hubb...@gmail.com wrote:
> From: John Hubbard
>
> In commit d241a95f3514 ("block: optionally mark pages dirty in
> bio_release_pages"), new "bool mark_dirty" argument was added to
> bio_release_pages.
>
> In upcoming work, another bool argument (to
