From: Rik van Riel <riel@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: bert hubert <bert.hubert@netherlabs.nl>, linux-kernel@vger.kernel.org
Subject: Re: userspace pagecache management tool
Date: Sat, 03 Mar 2007 17:28:35 -0500 [thread overview]
Message-ID: <45E9F693.3060200@redhat.com> (raw)
In-Reply-To: <20070303142609.d3bc9cc3.akpm@linux-foundation.org>
Andrew Morton wrote:
> On Sat, 03 Mar 2007 17:19:00 -0500 Rik van Riel <riel@redhat.com> wrote:
>
>>> It is *not* a global instruction. It uses setenv, so the user's policy
>>> affects only the target process and its forked children.
>> ... and all other processes accessing the same file(s)!
>>
>> Your library and the system calls may be limited to one process,
>> but the consequences are global.
>
> Yes. So what? If the user wants to go and evict libc.so from pagecache
> then he can do so - the kernel has provided syscalls with which this can be
> done for at least seven years. Bad user, shouldn't do that.
Are you saying the user should not use your script with their
backup program?
Then what's the point?
--
Politics is the struggle between those who want to make their country
the best in the world, and those who believe it already is. Each group
calls the other unpatriotic.
next prev parent reply other threads:[~2007-03-03 22:28 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-03 20:29 userspace pagecache management tool Andrew Morton
2007-03-03 20:40 ` Rik van Riel
2007-03-03 21:12 ` Andrew Morton
2007-03-03 21:30 ` Rik van Riel
2007-03-03 21:41 ` bert hubert
2007-03-03 22:14 ` Andrew Morton
2007-03-03 22:19 ` Rik van Riel
2007-03-03 22:26 ` Andrew Morton
2007-03-03 22:28 ` Rik van Riel [this message]
2007-03-03 22:38 ` Andrew Morton
2007-03-03 22:56 ` Erik Andersen
2007-03-03 23:01 ` bert hubert
2007-03-03 23:45 ` Andrew Morton
2007-03-06 12:10 ` Pádraig Brady
2007-03-06 21:40 ` Andrew Morton
2007-03-06 21:44 ` Rik van Riel
2007-03-07 11:39 ` Pádraig Brady
2007-03-07 18:50 ` Andrew Morton
2007-03-08 7:59 ` Vaidyanathan Srinivasan
2007-03-08 8:12 ` Andrew Morton
2007-03-03 22:07 ` Andrew Morton
2007-03-03 22:25 ` Rik van Riel
2007-03-03 22:37 ` Andrew Morton
2007-03-03 22:52 ` Andrew Morton
2007-03-04 0:01 ` Rik van Riel
2007-03-04 1:02 ` Andrew Morton
2007-03-04 1:23 ` Rik van Riel
2007-03-04 1:49 ` Andrew Morton
2007-03-04 1:56 ` Rik van Riel
2007-03-04 12:07 ` Andrew Morton
2007-03-04 14:35 ` Peter Zijlstra
2007-03-04 16:01 ` Rik van Riel
2007-03-03 22:58 ` Ray Lee
2007-03-03 23:34 ` Andrew Morton
2007-03-04 1:02 ` Ray Lee
2007-03-04 1:21 ` Andrew Morton
2007-03-04 0:14 ` Eric St-Laurent
2007-03-04 1:10 ` Andrew Morton
2007-03-04 1:39 ` Rik van Riel
2007-03-04 1:16 ` Lee Revell
2007-03-04 1:39 ` Andrew Morton
2007-03-04 2:35 ` Lee Revell
2007-03-04 4:35 ` Andrew Morton
2007-03-05 11:02 ` Pádraig Brady
2007-03-05 11:12 ` Andrew Morton
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