From: David Hildenbrand <david@redhat.com>
To: Alexander Duyck <alexander.duyck@gmail.com>,
virtio-dev@lists.oasis-open.org, kvm@vger.kernel.org,
mst@redhat.com, catalin.marinas@arm.com, dave.hansen@intel.com,
linux-kernel@vger.kernel.org, willy@infradead.org,
mhocko@kernel.org, linux-mm@kvack.org, akpm@linux-foundation.org,
will@kernel.org, linux-arm-kernel@lists.infradead.org,
osalvador@suse.de
Cc: yang.zhang.wz@gmail.com, pagupta@redhat.com,
konrad.wilk@oracle.com, nitesh@redhat.com, riel@surriel.com,
lcapitulino@redhat.com, wei.w.wang@intel.com,
aarcange@redhat.com, ying.huang@intel.com, pbonzini@redhat.com,
dan.j.williams@intel.com, fengguang.wu@intel.com,
alexander.h.duyck@linux.intel.com,
kirill.shutemov@linux.intel.com
Subject: Re: [PATCH v9 3/8] mm: Move set/get_pcppage_migratetype to mmzone.h
Date: Mon, 9 Sep 2019 10:22:29 +0200 [thread overview]
Message-ID: <98c05446-84f6-97f1-b246-1ad9595cc230@redhat.com> (raw)
In-Reply-To: <20190907172528.10910.37051.stgit@localhost.localdomain>
On 07.09.19 19:25, Alexander Duyck wrote:
> From: Alexander Duyck <alexander.h.duyck@linux.intel.com>
>
> In order to support page reporting it will be necessary to store and
> retrieve the migratetype of a page. To enable that I am moving the set and
> get operations for pcppage_migratetype into the mm/internal.h header so
> that they can be used outside of the page_alloc.c file.
>
> Reviewed-by: Dan Williams <dan.j.williams@intel.com>
> Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
> ---
> mm/internal.h | 18 ++++++++++++++++++
> mm/page_alloc.c | 18 ------------------
> 2 files changed, 18 insertions(+), 18 deletions(-)
>
> diff --git a/mm/internal.h b/mm/internal.h
> index 0d5f720c75ab..e4a1a57bbd40 100644
> --- a/mm/internal.h
> +++ b/mm/internal.h
> @@ -549,6 +549,24 @@ static inline bool is_migrate_highatomic_page(struct page *page)
> return get_pageblock_migratetype(page) == MIGRATE_HIGHATOMIC;
> }
>
> +/*
> + * A cached value of the page's pageblock's migratetype, used when the page is
> + * put on a pcplist. Used to avoid the pageblock migratetype lookup when
> + * freeing from pcplists in most cases, at the cost of possibly becoming stale.
> + * Also the migratetype set in the page does not necessarily match the pcplist
> + * index, e.g. page might have MIGRATE_CMA set but be on a pcplist with any
> + * other index - this ensures that it will be put on the correct CMA freelist.
> + */
> +static inline int get_pcppage_migratetype(struct page *page)
> +{
> + return page->index;
> +}
> +
> +static inline void set_pcppage_migratetype(struct page *page, int migratetype)
> +{
> + page->index = migratetype;
> +}
> +
> void setup_zone_pageset(struct zone *zone);
> extern struct page *alloc_new_node_page(struct page *page, unsigned long node);
> #endif /* __MM_INTERNAL_H */
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index 4e4356ba66c7..a791f2baeeeb 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -185,24 +185,6 @@ static int __init early_init_on_free(char *buf)
> }
> early_param("init_on_free", early_init_on_free);
>
> -/*
> - * A cached value of the page's pageblock's migratetype, used when the page is
> - * put on a pcplist. Used to avoid the pageblock migratetype lookup when
> - * freeing from pcplists in most cases, at the cost of possibly becoming stale.
> - * Also the migratetype set in the page does not necessarily match the pcplist
> - * index, e.g. page might have MIGRATE_CMA set but be on a pcplist with any
> - * other index - this ensures that it will be put on the correct CMA freelist.
> - */
> -static inline int get_pcppage_migratetype(struct page *page)
> -{
> - return page->index;
> -}
> -
> -static inline void set_pcppage_migratetype(struct page *page, int migratetype)
> -{
> - page->index = migratetype;
> -}
> -
> #ifdef CONFIG_PM_SLEEP
> /*
> * The following functions are used by the suspend/hibernate code to temporarily
>
>
Still have to understand in detail how this will be used, but the change
certainly looks ok :)
Acked-by: David Hildenbrand <david@redhat.com>
--
Thanks,
David / dhildenb
next prev parent reply other threads:[~2019-09-09 8:22 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-07 17:25 [PATCH v9 0/8] stg mail -e --version=v9 \ Alexander Duyck
2019-09-07 17:25 ` [PATCH v9 1/8] mm: Add per-cpu logic to page shuffling Alexander Duyck
2019-09-09 8:14 ` David Hildenbrand
2019-09-09 15:11 ` Alexander Duyck
2019-09-10 12:11 ` Michal Hocko
2019-09-10 22:14 ` Alexander Duyck
2019-09-10 22:11 ` Alexander Duyck
2019-09-09 9:07 ` Kirill A. Shutemov
2019-09-09 15:12 ` Alexander Duyck
2019-09-07 17:25 ` [PATCH v9 2/8] mm: Adjust shuffle code to allow for future coalescing Alexander Duyck
2019-09-09 8:19 ` David Hildenbrand
2019-09-09 9:47 ` Kirill A. Shutemov
2019-09-09 15:22 ` Alexander Duyck
2019-09-09 15:35 ` Kirill A. Shutemov
2019-09-09 15:37 ` Alexander Duyck
2019-09-09 16:43 ` Alexander Duyck
2019-09-09 17:00 ` Kirill A. Shutemov
2019-09-10 12:20 ` Michal Hocko
2019-09-10 14:48 ` Alexander Duyck
2019-09-07 17:25 ` [PATCH v9 3/8] mm: Move set/get_pcppage_migratetype to mmzone.h Alexander Duyck
2019-09-09 8:22 ` David Hildenbrand [this message]
2019-09-09 9:56 ` Kirill A. Shutemov
2019-09-09 18:01 ` Alexander Duyck
2019-09-09 18:12 ` Alexander Duyck
2019-09-10 12:23 ` Michal Hocko
2019-09-10 14:46 ` Alexander Duyck
2019-09-10 17:45 ` Michal Hocko
2019-09-10 20:26 ` Alexander Duyck
2019-09-07 17:25 ` [PATCH v9 4/8] mm: Use zone and order instead of free area in free_list manipulators Alexander Duyck
2019-09-10 12:27 ` Michal Hocko
2019-09-07 17:25 ` [PATCH v9 5/8] arm64: Move hugetlb related definitions out of pgtable.h to page-defs.h Alexander Duyck
2019-09-09 8:52 ` David Hildenbrand
2019-09-09 15:27 ` Alexander Duyck
2019-09-17 17:48 ` Will Deacon
2019-09-17 20:07 ` Alexander Duyck
2019-09-07 17:25 ` [PATCH v9 6/8] mm: Introduce Reported pages Alexander Duyck
2019-09-09 14:42 ` Kirill A. Shutemov
2019-09-09 16:25 ` Alexander Duyck
2019-09-09 16:33 ` Kirill A. Shutemov
2019-09-07 17:26 ` [PATCH v9 7/8] virtio-balloon: Pull page poisoning config out of free page hinting Alexander Duyck
2019-09-09 8:59 ` David Hildenbrand
2019-09-09 15:31 ` Alexander Duyck
2019-09-07 17:26 ` [PATCH v9 8/8] virtio-balloon: Add support for providing unused page reports to host Alexander Duyck
2019-09-07 17:34 ` [PATCH v9 0/8] mm / virtio: Provide support for unused page reporting Alexander Duyck
2019-09-10 12:42 ` [PATCH v9 0/8] stg mail -e --version=v9 \ Michal Hocko
2019-09-10 14:42 ` Alexander Duyck
2019-09-10 14:47 ` Michal Hocko
2019-09-10 16:05 ` Alexander Duyck
2019-09-10 16:18 ` [virtio-dev] " Dr. David Alan Gilbert
2019-09-10 16:22 ` David Hildenbrand
2019-09-11 9:23 ` Michael S. Tsirkin
2019-09-11 9:50 ` David Hildenbrand
2019-09-10 17:52 ` Michal Hocko
2019-09-10 18:00 ` Michal Hocko
2019-09-10 20:37 ` Alexander Duyck
2019-09-10 21:23 ` Alexander Duyck
2019-09-11 11:36 ` Michal Hocko
2019-09-11 11:47 ` David Hildenbrand
2019-09-11 12:08 ` Michael S. Tsirkin
2019-09-11 12:19 ` Michal Hocko
2019-09-11 12:25 ` Michal Hocko
2019-09-11 12:42 ` David Hildenbrand
2019-09-11 12:54 ` Michal Hocko
2019-09-11 13:03 ` David Hildenbrand
2019-09-11 13:20 ` Michal Hocko
2019-09-11 13:51 ` Michal Hocko
2019-09-11 16:09 ` David Hildenbrand
2019-09-12 7:16 ` Michal Hocko
2019-09-12 7:47 ` David Hildenbrand
2019-09-12 9:26 ` Michal Hocko
2019-09-12 12:00 ` Nitesh Narayan Lal
2019-09-11 14:03 ` Nitesh Narayan Lal
2019-09-11 16:02 ` David Hildenbrand
2019-09-11 13:19 ` Nitesh Narayan Lal
2019-09-11 12:55 ` Nitesh Narayan Lal
2019-09-11 15:12 ` Alexander Duyck
2019-09-12 9:19 ` Michal Hocko
2019-09-12 10:24 ` Kirill A. Shutemov
2019-09-12 11:11 ` Michal Hocko
2019-09-12 15:42 ` Alexander Duyck
2019-09-12 16:35 ` Mel Gorman
2019-09-12 17:48 ` Alexander Duyck
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=98c05446-84f6-97f1-b246-1ad9595cc230@redhat.com \
--to=david@redhat.com \
--cc=aarcange@redhat.com \
--cc=akpm@linux-foundation.org \
--cc=alexander.duyck@gmail.com \
--cc=alexander.h.duyck@linux.intel.com \
--cc=catalin.marinas@arm.com \
--cc=dan.j.williams@intel.com \
--cc=dave.hansen@intel.com \
--cc=fengguang.wu@intel.com \
--cc=kirill.shutemov@linux.intel.com \
--cc=konrad.wilk@oracle.com \
--cc=kvm@vger.kernel.org \
--cc=lcapitulino@redhat.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mhocko@kernel.org \
--cc=mst@redhat.com \
--cc=nitesh@redhat.com \
--cc=osalvador@suse.de \
--cc=pagupta@redhat.com \
--cc=pbonzini@redhat.com \
--cc=riel@surriel.com \
--cc=virtio-dev@lists.oasis-open.org \
--cc=wei.w.wang@intel.com \
--cc=will@kernel.org \
--cc=willy@infradead.org \
--cc=yang.zhang.wz@gmail.com \
--cc=ying.huang@intel.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;
as well as URLs for NNTP newsgroup(s).