linux-kernel - Re: [PATCH 12/17] mm: sys_remap_anon

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]

Message-ID: <87iok0q8p4.fsf@tassilo.jf.intel.com>
Date:	Sat, 04 Oct 2014 06:13:27 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	Andrea Arcangeli <aarcange@...hat.com>
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linux-api@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 12/17] mm: sys_remap_anon_pages

Andrea Arcangeli <aarcange@...hat.com> writes:

> This new syscall will move anon pages across vmas, atomically and
> without touching the vmas.
>
> It only works on non shared anonymous pages because those can be
> relocated without generating non linear anon_vmas in the rmap code.

...

> It is an alternative to mremap.

Why a new syscall? Couldn't mremap do this transparently?

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only
--
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/