On Mon, 11 May 2020, Johannes Weiner wrote:
>
> Since commit b56a2d8af914 ("mm: rid swapoff of quadratic complexity"),
> shmem_unuse_inode() doesn't have its own copy anymore - it uses
> shmem_swapin_page().
>
> However, that commit appears to have made shmem's private call to
>
On Mon, May 11, 2020 at 02:10:58PM -0400, Johannes Weiner wrote:
> From fc9dcaf68c8b54baf365cd670fb5780c7f0d243f Mon Sep 17 00:00:00 2001
> From: Johannes Weiner
> Date: Mon, 11 May 2020 12:59:08 -0400
> Subject: [PATCH] mm: shmem: remove rare optimization when swapin races with
> hole punching
On Mon, May 11, 2020 at 09:32:16AM -0700, Hugh Dickins wrote:
> On Mon, 11 May 2020, Johannes Weiner wrote:
> > On Mon, May 11, 2020 at 12:38:04AM -0700, Hugh Dickins wrote:
> > > On Fri, 8 May 2020, Johannes Weiner wrote:
> > > >
> > > > I looked at this some more, as well as compared it to
On Mon, 11 May 2020, Johannes Weiner wrote:
> On Mon, May 11, 2020 at 12:38:04AM -0700, Hugh Dickins wrote:
> > On Fri, 8 May 2020, Johannes Weiner wrote:
> > >
> > > I looked at this some more, as well as compared it to non-shmem
> > > swapping. My conclusion is - and Hugh may correct me on this
On Mon, May 11, 2020 at 12:38:04AM -0700, Hugh Dickins wrote:
> On Fri, 8 May 2020, Johannes Weiner wrote:
> >
> > I looked at this some more, as well as compared it to non-shmem
> > swapping. My conclusion is - and Hugh may correct me on this - that
> > the deletion looks mandatory but is
On Fri, 8 May 2020, Johannes Weiner wrote:
>
> I looked at this some more, as well as compared it to non-shmem
> swapping. My conclusion is - and Hugh may correct me on this - that
> the deletion looks mandatory but is actually an optimization. Page
> reclaim will ultimately pick these pages up.
On Fri, May 08, 2020 at 12:01:22PM -0400, Johannes Weiner wrote:
> On Thu, Apr 23, 2020 at 02:25:06PM +0900, Joonsoo Kim wrote:
> > On Wed, Apr 22, 2020 at 08:09:46AM -0400, Johannes Weiner wrote:
> > > On Wed, Apr 22, 2020 at 03:40:41PM +0900, Joonsoo Kim wrote:
> > > > On Mon, Apr 20, 2020 at
On Thu, Apr 23, 2020 at 02:25:06PM +0900, Joonsoo Kim wrote:
> On Wed, Apr 22, 2020 at 08:09:46AM -0400, Johannes Weiner wrote:
> > On Wed, Apr 22, 2020 at 03:40:41PM +0900, Joonsoo Kim wrote:
> > > On Mon, Apr 20, 2020 at 06:11:13PM -0400, Johannes Weiner wrote:
> > > > @@ -1664,29 +1678,22 @@
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