From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Theodore Ts'o <tytso@mit.edu>
Subject: Re: [PATCH resend] ramdisk: fix zeroed ramdisk pages on memory pressure
Date: Tue, 16 Oct 2007 01:23:32 +1000 [thread overview]
Message-ID: <200710160123.32434.nickpiggin@yahoo.com.au> (raw)
In-Reply-To: <20071015021624.7d5233bd.akpm@linux-foundation.org>
On Monday 15 October 2007 19:16, Andrew Morton wrote:
> On Tue, 16 Oct 2007 00:06:19 +1000 Nick Piggin <nickpiggin@yahoo.com.au>
wrote:
> > On Monday 15 October 2007 18:28, Christian Borntraeger wrote:
> > > Andrew, this is a resend of a bugfix patch. Ramdisk seems a bit
> > > unmaintained, so decided to sent the patch to you :-).
> > > I have CCed Ted, who did work on the code in the 90s. I found no
> > > current email address of Chad Page.
> >
> > This really needs to be fixed...
>
> rd.c is fairly mind-boggling vfs abuse.
Why do you say that? I guess it is _different_, by necessity(?)
Is there anything that is really bad? I guess it's not nice
for operating on the pagecache from its request_fn, but the
alternative is to duplicate pages for backing store and buffer
cache (actually that might not be a bad alternative really).
--
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:[~2007-10-15 15:23 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-15 8:28 Christian Borntraeger
2007-10-15 14:06 ` Nick Piggin
2007-10-15 9:05 ` Christian Borntraeger
2007-10-15 14:38 ` Nick Piggin
2007-10-15 18:38 ` Eric W. Biederman
2007-10-15 22:37 ` Eric W. Biederman
2007-10-15 22:40 ` [PATCH] rd: Preserve the dirty bit in init_page_buffers() Eric W. Biederman
2007-10-15 22:42 ` [PATCH] rd: Mark ramdisk buffers heads dirty Eric W. Biederman
2007-10-16 7:56 ` Christian Borntraeger
2007-10-16 9:22 ` Eric W. Biederman
2007-10-17 16:14 ` Christian Borntraeger
2007-10-17 17:57 ` Eric W. Biederman
2007-10-17 19:14 ` Chris Mason
2007-10-17 20:29 ` Eric W. Biederman
2007-10-17 20:54 ` Chris Mason
2007-10-17 21:30 ` Eric W. Biederman
2007-10-17 22:58 ` Chris Mason
2007-10-17 23:28 ` Eric W. Biederman
2007-10-18 0:03 ` Chris Mason
2007-10-18 3:27 ` Eric W. Biederman
2007-10-18 3:59 ` [RFC][PATCH] block: Isolate the buffer cache in it's own mappings Eric W. Biederman
2007-10-18 4:32 ` Andrew Morton
2007-10-19 21:27 ` Eric W. Biederman
2007-10-21 4:24 ` Nick Piggin
2007-10-21 4:53 ` Eric W. Biederman
2007-10-21 5:36 ` Nick Piggin
2007-10-21 7:09 ` Eric W. Biederman
2007-10-22 0:15 ` David Chinner
2007-10-18 5:10 ` Nick Piggin
2007-10-19 21:35 ` Eric W. Biederman
2007-10-17 21:48 ` [PATCH] rd: Mark ramdisk buffers heads dirty Christian Borntraeger
2007-10-17 22:22 ` Eric W. Biederman
2007-10-18 9:26 ` Christian Borntraeger
2007-10-19 22:46 ` Eric W. Biederman
2007-10-19 22:51 ` [PATCH] rd: Use a private inode for backing storage Eric W. Biederman
2007-10-21 4:28 ` Nick Piggin
2007-10-21 5:10 ` Eric W. Biederman
2007-10-21 5:24 ` Nick Piggin
2007-10-21 6:48 ` Eric W. Biederman
2007-10-21 7:28 ` Christian Borntraeger
2007-10-21 8:23 ` Eric W. Biederman
2007-10-21 9:56 ` Nick Piggin
2007-10-21 18:39 ` Eric W. Biederman
2007-10-22 1:56 ` Nick Piggin
2007-10-22 13:11 ` Chris Mason
2007-10-21 9:39 ` Nick Piggin
2007-10-21 17:56 ` Eric W. Biederman
2007-10-22 0:29 ` Nick Piggin
2007-10-16 8:19 ` [PATCH] rd: Mark ramdisk buffers heads dirty Nick Piggin
2007-10-16 8:48 ` Christian Borntraeger
2007-10-16 19:06 ` Eric W. Biederman
2007-10-16 22:06 ` Nick Piggin
2007-10-16 8:12 ` [PATCH] rd: Preserve the dirty bit in init_page_buffers() Nick Piggin
2007-10-16 9:35 ` Eric W. Biederman
2007-10-15 9:16 ` [PATCH resend] ramdisk: fix zeroed ramdisk pages on memory pressure Andrew Morton
2007-10-15 15:23 ` Nick Piggin [this message]
2007-10-16 3:14 ` Eric W. Biederman
2007-10-16 6:45 ` Nick Piggin
2007-10-16 4:57 ` Eric W. Biederman
2007-10-16 8:08 ` Nick Piggin
2007-10-16 7:47 ` [patch][rfc] rewrite ramdisk Nick Piggin
2007-10-16 7:52 ` Jan Engelhardt
2007-10-16 8:07 ` Nick Piggin
2007-10-16 8:17 ` Jan Engelhardt
2007-10-16 8:26 ` Nick Piggin
2007-10-16 8:53 ` Jan Engelhardt
2007-10-16 9:08 ` Eric W. Biederman
2007-10-16 21:28 ` Theodore Tso
2007-10-16 22:08 ` Nick Piggin
2007-10-16 23:48 ` Eric W. Biederman
2007-10-17 0:28 ` Nick Piggin
2007-10-17 1:13 ` Eric W. Biederman
2007-10-17 1:47 ` Nick Piggin
2007-10-17 10:30 ` Eric W. Biederman
2007-10-17 12:49 ` Nick Piggin
2007-10-17 18:45 ` Eric W. Biederman
2007-10-18 1:06 ` 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=200710160123.32434.nickpiggin@yahoo.com.au \
--to=nickpiggin@yahoo.com.au \
--cc=akpm@linux-foundation.org \
--cc=borntraeger@de.ibm.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=schwidefsky@de.ibm.com \
--cc=tytso@mit.edu \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox