linux-kernel - Re: [PATCH] proc: task_mmu: show page size in /proc/<pid>/numa

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 22 Dec 2014 09:59:36 -0800
From:	Dave Hansen <dave.hansen@...ux.intel.com>
To:	Rafael Aquini <aquini@...hat.com>
CC:	Johannes Weiner <hannes@...xchg.org>, linux-kernel@...r.kernel.org,
	akpm@...ux-foundation.org, oleg@...hat.com, rientjes@...gle.com,
	linux-mm@...ck.org, Mel Gorman <mel@....ul.ie>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Subject: Re: [PATCH] proc: task_mmu: show page size in /proc/<pid>/numa_maps

On 12/22/2014 09:25 AM, Rafael Aquini wrote:
> Remaining question here is: should we print out 'pagesize' deliberately 
> or conditionally, only to disambiguate cases where page_size != PAGE_SIZE?

I say print it unconditionally.  Not to completely overdesign this, but
I do think we should try to at least mirror the terminology that smaps uses:

	KernelPageSize:        4 kB
	MMUPageSize:           4 kB

So definitely call this kernelpagesize.

It appears that powerpc is the only architecture where there is a
difference, and I'm not sure that this is very common at all these days.
 Do we need mmupagesize in numa_maps too?

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/