linux-kernel - Re: [PATCH v2 resend 0/12] enable writing to /proc/pid/mem

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Message-ID: <20110323145748.GA22723@ZenIV.linux.org.uk>
Date:	Wed, 23 Mar 2011 14:57:49 +0000
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Stephen Wilson <wilsons@...rt.ca>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Michel Lespinasse <walken@...gle.com>,
	Andi Kleen <ak@...ux.intel.com>,
	Rik van Riel <riel@...hat.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Matt Mackall <mpm@...enic.com>,
	David Rientjes <rientjes@...gle.com>,
	Nick Piggin <npiggin@...nel.dk>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Mel Gorman <mel@....ul.ie>, Hugh Dickins <hughd@...gle.com>,
	x86@...nel.org, linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 resend 0/12] enable writing to /proc/pid/mem

On Wed, Mar 23, 2011 at 10:43:49AM -0400, Stephen Wilson wrote:
> Hello,
> 
> This is a resend[1] of a patch series that implements safe writes to
> /proc/pid/mem.  Such functionality is useful as it gives debuggers a simple and
> efficient mechanism to manipulate a process' address space.  Memory can be read
> and written using single calls to pread(2) and pwrite(2) instead of iteratively
> calling into ptrace(2).

It's in local queue already, along with other procfs fixes; I'm going to push
it today, with several more procfs race fixes added.
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