From: Andi Kleen <andi@firstfloor.org>
To: Nick Piggin <npiggin@suse.de>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>,
Andi Kleen <andi@firstfloor.org>,
Wu Fengguang <fengguang.wu@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [RFC][PATCH] HWPOISON: remove the unsafe __set_page_locked()
Date: Mon, 28 Sep 2009 03:19:43 +0200 [thread overview]
Message-ID: <20090928011943.GB1656@one.firstfloor.org> (raw)
In-Reply-To: <20090927230118.GH6327@wotan.suse.de>
> There is no real rush AFAIKS to fix this one single pagecache site
> while we have problems with slab allocators and all other unaudited
> places that nonatomically modify page flags with an elevated
hwpoison ignores slab pages.
> page reference ... just mark HWPOISON as broken for the moment, or
> cut it down to do something much simpler I guess?
Erm no. These cases are *EXTREMLY* unlikely to hit.
I'll look into exploiting the ordering of the mapping assignment.
-Andi
--
ak@linux.intel.com -- Speaking for myself only.
WARNING: multiple messages have this Message-ID (diff)
From: Andi Kleen <andi@firstfloor.org>
To: Nick Piggin <npiggin@suse.de>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>,
Andi Kleen <andi@firstfloor.org>,
Wu Fengguang <fengguang.wu@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [RFC][PATCH] HWPOISON: remove the unsafe __set_page_locked()
Date: Mon, 28 Sep 2009 03:19:43 +0200 [thread overview]
Message-ID: <20090928011943.GB1656@one.firstfloor.org> (raw)
In-Reply-To: <20090927230118.GH6327@wotan.suse.de>
> There is no real rush AFAIKS to fix this one single pagecache site
> while we have problems with slab allocators and all other unaudited
> places that nonatomically modify page flags with an elevated
hwpoison ignores slab pages.
> page reference ... just mark HWPOISON as broken for the moment, or
> cut it down to do something much simpler I guess?
Erm no. These cases are *EXTREMLY* unlikely to hit.
I'll look into exploiting the ordering of the mapping assignment.
-Andi
--
ak@linux.intel.com -- Speaking for myself only.
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2009-09-28 1:19 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-26 3:15 [RFC][PATCH] HWPOISON: remove the unsafe __set_page_locked() Wu Fengguang
2009-09-26 3:15 ` Wu Fengguang
2009-09-26 3:49 ` Andi Kleen
2009-09-26 3:49 ` Andi Kleen
2009-09-26 10:52 ` Wu Fengguang
2009-09-26 10:52 ` Wu Fengguang
2009-09-26 11:31 ` Wu Fengguang
2009-09-26 11:31 ` Wu Fengguang
2009-09-27 10:47 ` Wu Fengguang
2009-09-27 10:47 ` Wu Fengguang
2009-09-27 19:20 ` Nick Piggin
2009-09-27 19:20 ` Nick Piggin
2009-09-28 8:44 ` Wu Fengguang
2009-09-28 8:44 ` Wu Fengguang
2009-09-29 5:16 ` Wu Fengguang
2009-09-29 5:16 ` Wu Fengguang
2009-10-01 2:02 ` Nick Piggin
2009-10-01 2:02 ` Nick Piggin
2009-10-02 10:54 ` Wu Fengguang
2009-10-02 10:54 ` Wu Fengguang
2009-09-26 11:09 ` Hugh Dickins
2009-09-26 11:09 ` Hugh Dickins
2009-09-26 11:48 ` Wu Fengguang
2009-09-26 11:48 ` Wu Fengguang
2009-09-26 11:58 ` Hugh Dickins
2009-09-26 11:58 ` Hugh Dickins
2009-09-26 15:05 ` Andi Kleen
2009-09-26 15:05 ` Andi Kleen
2009-09-26 19:12 ` Nick Piggin
2009-09-26 19:12 ` Nick Piggin
2009-09-26 19:14 ` Nick Piggin
2009-09-26 19:14 ` Nick Piggin
2009-09-26 19:06 ` Nick Piggin
2009-09-26 19:06 ` Nick Piggin
2009-09-26 21:32 ` Andi Kleen
2009-09-26 21:32 ` Andi Kleen
2009-09-27 16:26 ` Hugh Dickins
2009-09-27 16:26 ` Hugh Dickins
2009-09-27 19:22 ` Nick Piggin
2009-09-27 19:22 ` Nick Piggin
2009-09-27 21:57 ` Hugh Dickins
2009-09-27 21:57 ` Hugh Dickins
2009-09-27 23:01 ` Nick Piggin
2009-09-27 23:01 ` Nick Piggin
2009-09-28 1:19 ` Andi Kleen [this message]
2009-09-28 1:19 ` Andi Kleen
2009-09-28 1:52 ` Wu Fengguang
2009-09-28 1:52 ` Wu Fengguang
2009-09-28 2:57 ` Nick Piggin
2009-09-28 2:57 ` Nick Piggin
2009-09-28 4:11 ` Andi Kleen
2009-09-28 4:11 ` Andi Kleen
2009-09-28 4:29 ` Nick Piggin
2009-09-28 4:29 ` Nick Piggin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20090928011943.GB1656@one.firstfloor.org \
--to=andi@firstfloor.org \
--cc=akpm@linux-foundation.org \
--cc=fengguang.wu@intel.com \
--cc=hugh.dickins@tiscali.co.uk \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=npiggin@suse.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.