From: Arun KS <arunks@codeaurora.org>
To: Joe Perches <joe@perches.com>
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Subject: Re: [PATCH] mm: convert totalram_pages, totalhigh_pages and managed_pages to atomic.
Date: Tue, 23 Oct 2018 10:18:26 +0530 [thread overview]
Message-ID: <92d3523427e45124c71e16baabceb8c5@codeaurora.org> (raw)
In-Reply-To: <c57bcc584b3700c483b0311881ec3ae8786f88b1.camel@perches.com>
On 2018-10-23 09:45, Joe Perches wrote:
> On Mon, 2018-10-22 at 22:53 +0530, Arun KS wrote:
>> Remove managed_page_count_lock spinlock and instead use atomic
>> variables.
>
Hello Joe,
> Perhaps better to define and use macros for the accesses
> instead of specific uses of atomic_long_<inc/dec/read>
>
> Something like:
>
> #define totalram_pages() (unsigned
> long)atomic_long_read(&_totalram_pages)
> #define totalram_pages_inc() (unsigned
> long)atomic_long_inc(&_totalram_pages)
> #define totalram_pages_dec() (unsigned
> long)atomic_long_dec(&_totalram_pages)
That sounds like a nice idea.
Regards,
Arun
next prev parent reply other threads:[~2018-10-23 11:02 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-22 17:23 [PATCH] mm: convert totalram_pages, totalhigh_pages and managed_pages to atomic Arun KS
2018-10-22 18:11 ` Michal Hocko
2018-10-23 4:46 ` Arun Sudhilal
2018-10-23 4:15 ` Joe Perches
2018-10-23 4:48 ` Arun KS [this message]
2018-10-23 5:37 ` Huang, Ying
2018-11-22 1:33 ` Guo Ren
2018-11-22 1:33 ` Guo Ren
2018-11-22 20:01 ` Kuehling, Felix
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