linux-kernel - Re: [PATCH 3/3 v3] mm/vmalloc: Cache the vmalloc memory info

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Message-ID: <CA+55aFxFwxPJftz52NyaeAqAAB0=tmp8cDrToW6_AoNp5apbow@mail.gmail.com>
Date:	Tue, 25 Aug 2015 10:03:21 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Rasmus Villemoes <linux@...musvillemoes.dk>
Cc:	Ingo Molnar <mingo@...nel.org>, George Spelvin <linux@...izon.com>,
	Dave Hansen <dave@...1.net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Rik van Riel <riel@...hat.com>,
	David Rientjes <rientjes@...gle.com>
Subject: Re: [PATCH 3/3 v3] mm/vmalloc: Cache the vmalloc memory info

On Tue, Aug 25, 2015 at 9:39 AM, Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
>
> I'm not convinced anybody actually uses those values, and they are
> getting *less* relevant rather than more (on 64-bit, those values
> really don't matter, since the vmalloc space isn't really a
> limitation)

Side note: the people who actually care about "my vmalloc area is too
full, what's up?" would use /proc/vmallocinfo anyway, since that's
what shows things like fragmentation etc.

So I'm just talking about removing the /proc/meminfo part. First try
to remove it *all*, and if there is some script that hollers because
it wants to parse them, print out the values as zero.

                 Linus
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