From: Andi Kleen <andi@firstfloor.org>
To: Ulrich Drepper <drepper@gmail.com>
Cc: Andi Kleen <andi@firstfloor.org>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH prototype] [0/8] Predictive bitmaps for ELF executables
Date: Sat, 22 Mar 2008 08:17:55 +0100 [thread overview]
Message-ID: <20080322071755.GP2346@one.firstfloor.org> (raw)
In-Reply-To: <a36005b50803212136s78dc2e4bx5ac715ebc7a6e48a@mail.gmail.com>
On Fri, Mar 21, 2008 at 09:36:51PM -0700, Ulrich Drepper wrote:
> On Fri, Mar 21, 2008 at 10:26 AM, Andi Kleen <andi@firstfloor.org> wrote:
> > Concrete suggestions please.
>
> I already spelled it out. Add a new program header entry, point it to
> a bit array large enough to cover all loadable segments.
Ah that's easy, the program header is already supported in the kernel code
(PT_PRESENT_BITMAP)
The additional SHDR is just there for easier testing/migration.
>
> It is not worth creating problems with this invalid extension just for
You still didn't say why it was invalid.
Anyways I disagree on the value of supporting old binaries. I believe
it is important.
-Andi
WARNING: multiple messages have this Message-ID (diff)
From: Andi Kleen <andi@firstfloor.org>
To: Ulrich Drepper <drepper@gmail.com>
Cc: Andi Kleen <andi@firstfloor.org>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH prototype] [0/8] Predictive bitmaps for ELF executables
Date: Sat, 22 Mar 2008 08:17:55 +0100 [thread overview]
Message-ID: <20080322071755.GP2346@one.firstfloor.org> (raw)
In-Reply-To: <a36005b50803212136s78dc2e4bx5ac715ebc7a6e48a@mail.gmail.com>
On Fri, Mar 21, 2008 at 09:36:51PM -0700, Ulrich Drepper wrote:
> On Fri, Mar 21, 2008 at 10:26 AM, Andi Kleen <andi@firstfloor.org> wrote:
> > Concrete suggestions please.
>
> I already spelled it out. Add a new program header entry, point it to
> a bit array large enough to cover all loadable segments.
Ah that's easy, the program header is already supported in the kernel code
(PT_PRESENT_BITMAP)
The additional SHDR is just there for easier testing/migration.
>
> It is not worth creating problems with this invalid extension just for
You still didn't say why it was invalid.
Anyways I disagree on the value of supporting old binaries. I believe
it is important.
-Andi
--
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:[~2008-03-22 7:15 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-18 1:09 [PATCH prototype] [0/8] Predictive bitmaps for ELF executables Andi Kleen
2008-03-18 1:09 ` Andi Kleen
2008-03-18 1:09 ` [PATCH prototype] [1/8] Give ELF shdr types a name Andi Kleen
2008-03-18 1:09 ` Andi Kleen
2008-03-18 1:09 ` [PATCH prototype] [2/8] Add support to override mmap exec write protection with O_FORCEWRITE Andi Kleen
2008-03-18 1:09 ` Andi Kleen
2008-03-18 1:09 ` [PATCH prototype] [3/8] Make readahead max pinned value a sysctl Andi Kleen
2008-03-18 1:09 ` Andi Kleen
2008-03-18 1:09 ` [PATCH prototype] [4/8] Add readahead function to read-ahead based on a bitmap Andi Kleen
2008-03-18 1:09 ` Andi Kleen
2008-03-18 1:09 ` [PATCH prototype] [5/8] Add ELF constants for pbitmaps Andi Kleen
2008-03-18 1:09 ` Andi Kleen
2008-03-18 1:09 ` [PATCH prototype] [6/8] Core predictive bitmap engine Andi Kleen
2008-03-18 1:09 ` Andi Kleen
2008-03-18 1:09 ` [PATCH prototype] [7/8] Add the sysctls to control pbitmaps Andi Kleen
2008-03-18 1:09 ` Andi Kleen
2008-03-18 1:09 ` [PATCH prototype] [8/8] Add mmap_full_slurp support Andi Kleen
2008-03-18 1:09 ` Andi Kleen
2008-03-18 7:36 ` [PATCH prototype] [0/8] Predictive bitmaps for ELF executables Andrew Morton
2008-03-18 7:36 ` Andrew Morton
2008-03-18 14:18 ` Andi Kleen
2008-03-18 14:18 ` Andi Kleen
2008-03-18 16:57 ` Andrew Morton
2008-03-18 16:57 ` Andrew Morton
2008-03-18 17:20 ` Andi Kleen
2008-03-18 17:20 ` Andi Kleen
2008-03-18 17:44 ` Andrew Morton
2008-03-18 17:44 ` Andrew Morton
2008-03-19 8:32 ` Andi Kleen
2008-03-19 8:32 ` Andi Kleen
2008-03-19 9:04 ` Andrew Morton
2008-03-19 9:04 ` Andrew Morton
2008-03-19 22:45 ` Ulrich Drepper
2008-03-19 22:45 ` Ulrich Drepper
2008-03-19 23:12 ` Andrew Morton
2008-03-19 23:12 ` Andrew Morton
2008-03-20 0:09 ` David Miller
2008-03-20 0:09 ` David Miller, Andrew Morton
2008-03-20 9:00 ` Andi Kleen
2008-03-20 9:00 ` Andi Kleen
2008-03-21 17:15 ` Ulrich Drepper
2008-03-21 17:15 ` Ulrich Drepper
2008-03-21 17:26 ` Andi Kleen
2008-03-21 17:26 ` Andi Kleen
2008-03-22 4:36 ` Ulrich Drepper
2008-03-22 4:36 ` Ulrich Drepper
2008-03-22 7:17 ` Andi Kleen [this message]
2008-03-22 7:17 ` Andi Kleen
2008-03-22 7:24 ` Nicholas Miell
2008-03-22 7:24 ` Nicholas Miell
2008-03-22 9:10 ` Andi Kleen
2008-03-22 9:10 ` Andi Kleen
2008-03-22 10:16 ` Nicholas Miell
2008-03-22 10:16 ` Nicholas Miell
2008-03-22 14:29 ` Andi Kleen
2008-03-22 14:29 ` Andi Kleen
2008-03-23 13:25 ` Pavel Machek
2008-03-23 13:25 ` Pavel Machek
2008-03-23 17:08 ` Andi Kleen
2008-03-23 17:08 ` Andi Kleen
2008-03-24 16:24 ` Pavel Machek
2008-03-24 16:24 ` Pavel Machek
2008-03-24 4:20 ` Ulrich Drepper
2008-03-24 4:20 ` Ulrich Drepper
2008-03-24 5:16 ` Nicholas Miell
2008-03-24 5:16 ` Nicholas Miell
2008-03-24 5:26 ` Andi Kleen
2008-03-24 5:26 ` Andi Kleen
2008-03-24 19:42 ` Ulrich Drepper
2008-03-24 19:42 ` Ulrich Drepper
2008-03-24 21:47 ` Nicholas Miell
2008-03-24 21:47 ` Nicholas Miell
2008-03-25 7:54 ` Andi Kleen
2008-03-25 7:54 ` Andi Kleen
2008-03-26 18:15 ` Ulrich Drepper
2008-03-26 18:15 ` Ulrich Drepper
2008-03-26 18:54 ` Andi Kleen
2008-03-26 18:54 ` Andi Kleen
2008-03-22 4:38 ` Ulrich Drepper
2008-03-22 4:38 ` Ulrich Drepper
2008-03-20 0:15 ` Diego Calleja
2008-03-20 0:15 ` Diego Calleja
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=20080322071755.GP2346@one.firstfloor.org \
--to=andi@firstfloor.org \
--cc=akpm@linux-foundation.org \
--cc=drepper@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
/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.