Re: [PATCH] rd: Mark ramdisk buffers heads dirty

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To: Christian Borntraeger <borntraeger@...>

Cc: Andrew Morton <akpm@...>, Nick Piggin <nickpiggin@...>, <linux-mm@...>, <linux-kernel@...>, Martin Schwidefsky <schwidefsky@...>, Theodore Ts'o <tytso@...>, <stable@...>

Subject: Re: [PATCH] rd: Mark ramdisk buffers heads dirty

Date: Friday, October 19, 2007 - 6:46 pm

Christian Borntraeger <borntraeger@de.ibm.com> writes:

quoted text> Am Donnerstag, 18. Oktober 2007 schrieb Eric W. Biederman:
>> Grr. Inconsistent rules on a core piece of infrastructure.
>> It looks like that if there is any trivial/minimal fix it
>> is based on your patch suppressing try_to_free_buffers.  Ugh.
>> 
>> Eric
>
> Ok. What do you think about having my patch for 2.6.23 stable, for 2.6.24
> and doing a nicer fix (rd rewrite for example for post 2.6.24)?

Looking at it.  If we don't get carried away using our own private
inode is barely more difficult then stomping on release_page and
in a number of ways a whole lot more subtle.  At least for 2.6.24 I
think it makes a sane fix, and quite possibly as a back port as well.

Eric
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Messages in current thread:

[PATCH resend] ramdisk: fix zeroed ramdisk pages on memory p..., Christian Borntraeger, (Mon Oct 15, 4:28 am)

Re: [PATCH resend] ramdisk: fix zeroed ramdisk pages on memo..., Nick Piggin, (Mon Oct 15, 10:06 am)

Re: [PATCH resend] ramdisk: fix zeroed ramdisk pages on memo..., Andrew Morton, (Mon Oct 15, 5:16 am)

Re: [PATCH resend] ramdisk: fix zeroed ramdisk pages on memo..., Nick Piggin, (Mon Oct 15, 11:23 am)

Re: [PATCH resend] ramdisk: fix zeroed ramdisk pages on memo..., Eric W. Biederman, (Mon Oct 15, 11:14 pm)

Re: [PATCH resend] ramdisk: fix zeroed ramdisk pages on memo..., Nick Piggin, (Tue Oct 16, 2:45 am)

Re: [PATCH resend] ramdisk: fix zeroed ramdisk pages on memo..., Eric W. Biederman, (Tue Oct 16, 12:57 am)

Re: [PATCH resend] ramdisk: fix zeroed ramdisk pages on memo..., Nick Piggin, (Tue Oct 16, 4:08 am)

[patch][rfc] rewrite ramdisk, Nick Piggin, (Tue Oct 16, 3:47 am)

Re: [patch][rfc] rewrite ramdisk, Eric W. Biederman, (Wed Oct 17, 6:30 am)

Re: [patch][rfc] rewrite ramdisk, Nick Piggin, (Wed Oct 17, 8:49 am)

Re: [patch][rfc] rewrite ramdisk, Eric W. Biederman, (Wed Oct 17, 2:45 pm)

Re: [patch][rfc] rewrite ramdisk, Nick Piggin, (Wed Oct 17, 9:06 pm)

Re: [patch][rfc] rewrite ramdisk, Theodore Tso, (Tue Oct 16, 5:28 pm)

Re: [patch][rfc] rewrite ramdisk, Nick Piggin, (Tue Oct 16, 6:08 pm)

Re: [patch][rfc] rewrite ramdisk, Eric W. Biederman, (Tue Oct 16, 7:48 pm)

Re: [patch][rfc] rewrite ramdisk, Nick Piggin, (Tue Oct 16, 8:28 pm)

Re: [patch][rfc] rewrite ramdisk, Eric W. Biederman, (Tue Oct 16, 9:13 pm)

Re: [patch][rfc] rewrite ramdisk, Nick Piggin, (Tue Oct 16, 9:47 pm)

Re: [patch][rfc] rewrite ramdisk, Eric W. Biederman, (Tue Oct 16, 5:08 am)

Re: [patch][rfc] rewrite ramdisk, Jan Engelhardt, (Tue Oct 16, 3:52 am)

Re: [patch][rfc] rewrite ramdisk, Nick Piggin, (Tue Oct 16, 4:07 am)

Re: [patch][rfc] rewrite ramdisk, Jan Engelhardt, (Tue Oct 16, 4:17 am)

Re: [patch][rfc] rewrite ramdisk, Nick Piggin, (Tue Oct 16, 4:26 am)

Re: [patch][rfc] rewrite ramdisk, Jan Engelhardt, (Tue Oct 16, 4:53 am)

Re: [PATCH resend] ramdisk: fix zeroed ramdisk pages on memo..., Christian Borntraeger, (Mon Oct 15, 5:05 am)

Re: [PATCH resend] ramdisk: fix zeroed ramdisk pages on memo..., Nick Piggin, (Mon Oct 15, 10:38 am)

Re: [PATCH resend] ramdisk: fix zeroed ramdisk pages on memo..., Eric W. Biederman, (Mon Oct 15, 2:38 pm)

Re: [PATCH resend] ramdisk: fix zeroed ramdisk pages on memo..., Eric W. Biederman, (Mon Oct 15, 6:37 pm)

[PATCH] rd: Preserve the dirty bit in init_page_buffers(), Eric W. Biederman, (Mon Oct 15, 6:40 pm)

Re: [PATCH] rd: Preserve the dirty bit in init_page_buffers(), Nick Piggin, (Tue Oct 16, 4:12 am)

Re: [PATCH] rd: Preserve the dirty bit in init_page_buffers(), Eric W. Biederman, (Tue Oct 16, 5:35 am)

[PATCH] rd: Mark ramdisk buffers heads dirty, Eric W. Biederman, (Mon Oct 15, 6:42 pm)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Nick Piggin, (Tue Oct 16, 4:19 am)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Eric W. Biederman, (Tue Oct 16, 3:06 pm)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Nick Piggin, (Tue Oct 16, 6:06 pm)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Christian Borntraeger, (Tue Oct 16, 4:48 am)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Christian Borntraeger, (Tue Oct 16, 3:56 am)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Christian Borntraeger, (Wed Oct 17, 12:14 pm)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Eric W. Biederman, (Wed Oct 17, 1:57 pm)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Christian Borntraeger, (Wed Oct 17, 5:48 pm)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Eric W. Biederman, (Wed Oct 17, 6:22 pm)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Christian Borntraeger, (Thu Oct 18, 5:26 am)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Eric W. Biederman, (Fri Oct 19, 6:46 pm)

[PATCH] rd: Use a private inode for backing storage, Eric W. Biederman, (Fri Oct 19, 6:51 pm)

Re: [PATCH] rd: Use a private inode for backing storage, Nick Piggin, (Sun Oct 21, 12:28 am)

Re: [PATCH] rd: Use a private inode for backing storage, Eric W. Biederman, (Sun Oct 21, 1:10 am)

Re: [PATCH] rd: Use a private inode for backing storage, Nick Piggin, (Sun Oct 21, 1:24 am)

Re: [PATCH] rd: Use a private inode for backing storage, Eric W. Biederman, (Sun Oct 21, 2:48 am)

Re: [PATCH] rd: Use a private inode for backing storage, Nick Piggin, (Sun Oct 21, 5:39 am)

Re: [PATCH] rd: Use a private inode for backing storage, Eric W. Biederman, (Sun Oct 21, 1:56 pm)

Re: [PATCH] rd: Use a private inode for backing storage, Nick Piggin, (Sun Oct 21, 8:29 pm)

Re: [PATCH] rd: Use a private inode for backing storage, Christian Borntraeger, (Sun Oct 21, 3:28 am)

Re: [PATCH] rd: Use a private inode for backing storage, Eric W. Biederman, (Sun Oct 21, 4:23 am)

Re: [PATCH] rd: Use a private inode for backing storage, Nick Piggin, (Sun Oct 21, 5:56 am)

Re: [PATCH] rd: Use a private inode for backing storage, Eric W. Biederman, (Sun Oct 21, 2:39 pm)

Re: [PATCH] rd: Use a private inode for backing storage, Chris Mason, (Mon Oct 22, 9:11 am)

Re: [PATCH] rd: Use a private inode for backing storage, Nick Piggin, (Sun Oct 21, 9:56 pm)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Chris Mason, (Wed Oct 17, 3:14 pm)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Eric W. Biederman, (Wed Oct 17, 4:29 pm)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Chris Mason, (Wed Oct 17, 4:54 pm)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Eric W. Biederman, (Wed Oct 17, 5:30 pm)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Chris Mason, (Wed Oct 17, 6:58 pm)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Eric W. Biederman, (Wed Oct 17, 7:28 pm)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Chris Mason, (Wed Oct 17, 8:03 pm)

[RFC][PATCH] block: Isolate the buffer cache in it's own map..., Eric W. Biederman, (Wed Oct 17, 11:59 pm)

Re: [RFC][PATCH] block: Isolate the buffer cache in it's own..., Nick Piggin, (Thu Oct 18, 1:10 am)

Re: [RFC][PATCH] block: Isolate the buffer cache in it's own..., Eric W. Biederman, (Fri Oct 19, 5:35 pm)

Re: [RFC][PATCH] block: Isolate the buffer cache in it's own..., Andrew Morton, (Thu Oct 18, 12:32 am)

Re: [RFC][PATCH] block: Isolate the buffer cache in it's own..., Eric W. Biederman, (Fri Oct 19, 5:27 pm)

Re: [RFC][PATCH] block: Isolate the buffer cache in it's own..., Nick Piggin, (Sun Oct 21, 12:24 am)

Re: [RFC][PATCH] block: Isolate the buffer cache in it's own..., David Chinner, (Sun Oct 21, 8:15 pm)

Re: [RFC][PATCH] block: Isolate the buffer cache in it's own..., Eric W. Biederman, (Sun Oct 21, 12:53 am)

Re: [RFC][PATCH] block: Isolate the buffer cache in it's own..., Nick Piggin, (Sun Oct 21, 1:36 am)

Re: [RFC][PATCH] block: Isolate the buffer cache in it's own..., Eric W. Biederman, (Sun Oct 21, 3:09 am)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Eric W. Biederman, (Wed Oct 17, 11:27 pm)

Re: [PATCH] rd: Mark ramdisk buffers heads dirty, Eric W. Biederman, (Tue Oct 16, 5:22 am)

Re: Re: [PATCH] rd: Mark ramdisk buffers heads dirty, , (Tue Oct 16, 4:05 am)

Re: Re: [PATCH] rd: Mark ramdisk buffers heads dirty, , (Tue Oct 16, 4:13 am)

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