From: Nick Piggin <npiggin@suse.de>
To: Linux Memory Management <linux-mm@kvack.org>
Cc: Neil Brown <neilb@suse.de>, Andrew Morton <akpm@osdl.org>,
Anton Altaparmakov <aia21@cam.ac.uk>,
Chris Mason <chris.mason@oracle.com>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Nick Piggin <npiggin@suse.de>
Subject: [rfc] buffered write deadlock fix
Date: Fri, 13 Oct 2006 18:43:52 +0200 (CEST) [thread overview]
Message-ID: <20061013143516.15438.8802.sendpatchset@linux.site> (raw)
The following set of patches attempt to fix the buffered write
locking problems.
While looking at this deadlock, it became apparent that there are
several others which are equally bad or worse. It will be very
good to fix these.
I ceased to become an admirer of this problem when it stopped my
pagefault vs invalidate race fix from being merged!
Review and comments would be very nice. Testing only if you don't
value your data. I realise all filesystem developers are busy
solving the 10TB fsck problem now, but if you could please take a
minute to look at the fs/ changes, and also ensure your
filesystem's prepare and commit_write handlers aren't broken.
Sorry for the shotgun mail. It is your fault for ever being
mentioned in the same email as the buffered write deadlock ;)
Thanks,
Nick
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next reply other threads:[~2006-10-13 16:43 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-13 16:43 Nick Piggin [this message]
2006-10-13 16:44 ` [patch 1/6] mm: revert "generic_file_buffered_write(): handle zero length iovec segments" Nick Piggin, Andrew Morton
2006-10-13 16:44 ` [patch 2/6] mm: revert "generic_file_buffered_write(): deadlock on vectored write" Nick Piggin, Andrew Morton
2006-10-13 16:44 ` [patch 3/6] mm: generic_file_buffered_write cleanup Nick Piggin, Andrew Morton
2006-10-13 16:44 ` [patch 4/6] mm: comment mmap_sem / lock_page lockorder Nick Piggin
2006-10-13 16:44 ` [patch 5/6] mm: debug write deadlocks Nick Piggin
2006-10-13 16:44 ` [patch 6/6] mm: fix pagecache " Nick Piggin, Andrew Morton
2006-10-13 22:14 ` Andrew Morton
2006-10-14 4:19 ` Nick Piggin
2006-10-14 4:30 ` Nick Piggin
2006-10-15 11:35 ` Peter Zijlstra
2006-10-14 5:04 ` Nick Piggin
2006-10-15 11:37 ` Peter Zijlstra
2006-10-15 11:56 ` Nick Piggin
2006-10-15 13:51 ` Peter Zijlstra
2006-10-15 14:19 ` SPAM: " Nick Piggin
2006-10-15 15:47 ` Peter Zijlstra
2006-10-15 15:57 ` RRe: " Nick Piggin
2006-10-15 16:13 ` Peter Zijlstra
2006-10-16 15:24 ` pagefault_disable (was Re: [patch 6/6] mm: fix pagecache write deadlocks) Nick Piggin
2006-10-16 16:05 ` Peter Zijlstra
2006-10-16 16:12 ` Nick Piggin
2006-10-18 14:25 ` [patch 6/6] mm: fix pagecache write deadlocks Chris Mason
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