From: Yu Zhao <yuzhao@google.com>
To: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Linux-MM <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>,
Hugh Dickins <hughd@google.com>,
"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
Matthew Wilcox <willy@infradead.org>,
Vlastimil Babka <vbabka@suse.cz>, Yang Shi <shy828301@gmail.com>,
Zi Yan <ziy@nvidia.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
Shuang Zhai <zhais@google.com>
Subject: Re: [PATCH 3/3] mm: don't remap clean subpages when splitting isolated thp
Date: Sun, 8 Aug 2021 11:20:30 -0600 [thread overview]
Message-ID: <CAOUHufaXA_won+fGbYx_9CBVPYcOy=RhAwP5ALwXPfNpJVwWVA@mail.gmail.com> (raw)
In-Reply-To: <20210804142729.iqtslnn3utvqgec3@box.shutemov.name>
[-- Attachment #1: Type: text/plain, Size: 938 bytes --]
On Wed, Aug 4, 2021 at 8:27 AM Kirill A. Shutemov <kirill@shutemov.name>
wrote:
> On Sat, Jul 31, 2021 at 12:39:38AM -0600, Yu Zhao wrote:
> > @@ -267,13 +308,19 @@ static bool remove_migration_pte(struct page
> *page, struct vm_area_struct *vma,
> > * Get rid of all migration entries and replace them by
> > * references to the indicated page.
> > */
> > -void remove_migration_ptes(struct page *old, struct page *new, bool
> locked)
> > +void remove_migration_ptes(struct page *old, struct page *new, bool
> locked, bool unmap_clean)
> > {
> > + struct rmap_walk_arg rmap_walk_arg = {
> > + .page = old,
> > + .unmap_clean = unmap_clean,
> > + };
> > struct rmap_walk_control rwc = {
> > .rmap_one = remove_migration_pte,
> > - .arg = old,
> > + .arg = &rmap_walk_arg,
> > };
>
> 'old' pointer has few low always-zero bit :P
>
Will do. Thanks.
[-- Attachment #2: Type: text/html, Size: 1432 bytes --]
prev parent reply other threads:[~2021-08-08 18:40 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-31 6:39 [PATCH 0/3] mm: optimize thp for reclaim and migration Yu Zhao
2021-07-31 6:39 ` [PATCH 1/3] mm: don't take lru lock when splitting isolated thp Yu Zhao
2021-07-31 6:39 ` [PATCH 2/3] mm: free zapped tail pages " Yu Zhao
2021-08-04 14:22 ` Kirill A. Shutemov
2021-08-08 17:28 ` Yu Zhao
2021-08-05 0:13 ` Yang Shi
2021-08-08 17:49 ` Yu Zhao
2021-08-11 22:25 ` Yang Shi
2021-08-11 23:12 ` Yu Zhao
2021-08-13 23:24 ` Yang Shi
2021-08-13 23:56 ` Yu Zhao
2021-08-14 0:30 ` Yang Shi
2021-08-14 1:49 ` Yu Zhao
2021-08-14 2:34 ` Yang Shi
2021-07-31 6:39 ` [PATCH 3/3] mm: don't remap clean subpages " Yu Zhao
2021-07-31 9:53 ` kernel test robot
2021-07-31 15:45 ` kernel test robot
2021-08-03 11:25 ` Matthew Wilcox
2021-08-03 11:36 ` Matthew Wilcox
2021-08-08 17:21 ` Yu Zhao
2021-08-04 14:27 ` Kirill A. Shutemov
2021-08-08 17:20 ` Yu Zhao [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAOUHufaXA_won+fGbYx_9CBVPYcOy=RhAwP5ALwXPfNpJVwWVA@mail.gmail.com' \
--to=yuzhao@google.com \
--cc=akpm@linux-foundation.org \
--cc=hughd@google.com \
--cc=kirill.shutemov@linux.intel.com \
--cc=kirill@shutemov.name \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=shy828301@gmail.com \
--cc=vbabka@suse.cz \
--cc=willy@infradead.org \
--cc=zhais@google.com \
--cc=ziy@nvidia.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox