From: Andrew Morton <akpm@linux-foundation.org>
To: ZhangNeil <neilzhang1123@hotmail.com>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2] mm: show free pages per each migrate type
Date: Thu, 9 Apr 2015 21:24:41 -0700 [thread overview]
Message-ID: <20150409212441.a64c3fe0.akpm@linux-foundation.org> (raw)
In-Reply-To: <COL130-W536B434DEADC19798C2A9FBAFA0@phx.gbl>
On Fri, 10 Apr 2015 04:16:15 +0000 ZhangNeil <neilzhang1123@hotmail.com> wrote:
> > I think we can eliminate nr_free[][]:
>
> what about make it as global__variable?
That isn't as good - it permanently consumes memory and really requires
new locking to protect the array from concurrent callers.
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WARNING: multiple messages have this Message-ID (diff)
From: Andrew Morton <akpm@linux-foundation.org>
To: ZhangNeil <neilzhang1123@hotmail.com>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2] mm: show free pages per each migrate type
Date: Thu, 9 Apr 2015 21:24:41 -0700 [thread overview]
Message-ID: <20150409212441.a64c3fe0.akpm@linux-foundation.org> (raw)
In-Reply-To: <COL130-W536B434DEADC19798C2A9FBAFA0@phx.gbl>
On Fri, 10 Apr 2015 04:16:15 +0000 ZhangNeil <neilzhang1123@hotmail.com> wrote:
> > I think we can eliminate nr_free[][]:
>
> what about make it as global__variable?
That isn't as good - it permanently consumes memory and really requires
new locking to protect the array from concurrent callers.
next prev parent reply other threads:[~2015-04-10 4:20 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-09 2:19 [PATCH v2] mm: show free pages per each migrate type Neil Zhang
2015-04-09 2:19 ` Neil Zhang
2015-04-09 20:47 ` Andrew Morton
2015-04-09 20:47 ` Andrew Morton
2015-04-10 4:16 ` ZhangNeil
2015-04-10 4:16 ` ZhangNeil
2015-04-10 4:24 ` Andrew Morton [this message]
2015-04-10 4:24 ` Andrew Morton
2015-04-12 7:17 ` ZhangNeil
2015-04-12 7:17 ` ZhangNeil
2015-04-12 7:25 ` Andrew Morton
2015-04-12 7:25 ` Andrew Morton
2015-04-11 2:50 ` David Rientjes
2015-04-11 2:50 ` David Rientjes
2015-04-12 7:02 ` ZhangNeil
2015-04-12 7:08 ` ZhangNeil
2015-04-12 7:08 ` ZhangNeil
2015-04-13 23:42 ` David Rientjes
2015-04-13 23:42 ` David Rientjes
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