From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Andrea Arcangeli <andrea@suse.de>
Cc: Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org, hugh@veritas.com
Subject: Re: smp race fix between invalidate_inode_pages* and do_no_page
Date: Wed, 11 Jan 2006 20:39:23 +1100 [thread overview]
Message-ID: <43C4D24B.8040007@yahoo.com.au> (raw)
In-Reply-To: <20060111090225.GY15897@opteron.random>
Andrea Arcangeli wrote:
> The main scary thing as far as I can tell, is the blocking lock_page. We
> can't just do TryLockPage...
>
Hopefully that should be OK... it should not tend to get tripped up on read
because filemap_nopage needs to take the lock and wait in that case anyway.
Hopefully other lock_page users will be in the noise?
Another option might be a spinbit in page->flags but that seems like overkill.
--
SUSE Labs, Novell Inc.
Send instant messages to your online friends http://au.messenger.yahoo.com
next prev parent reply other threads:[~2006-01-11 9:39 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-13 19:37 smp race fix between invalidate_inode_pages* and do_no_page Andrea Arcangeli
2005-12-13 21:02 ` Andrew Morton
2005-12-13 21:14 ` Andrea Arcangeli
2005-12-16 13:51 ` Andrea Arcangeli
2006-01-10 6:24 ` Andrea Arcangeli
2006-01-10 6:48 ` Andrea Arcangeli
2006-01-11 4:08 ` Nick Piggin
2006-01-11 8:23 ` Andrea Arcangeli
2006-01-11 8:51 ` Andrew Morton
2006-01-11 9:02 ` Andrea Arcangeli
2006-01-11 9:06 ` Andrew Morton
2006-01-11 9:13 ` Andrea Arcangeli
2006-01-11 20:49 ` Hugh Dickins
2006-01-11 21:05 ` Andrew Morton
2006-01-13 7:35 ` Nick Piggin
2006-01-13 7:47 ` Andrew Morton
2006-01-13 10:37 ` Nick Piggin
2006-03-31 12:36 ` Andrea Arcangeli
2006-04-02 5:17 ` Nick Piggin
2006-04-02 5:21 ` Andrew Morton
2006-04-07 19:18 ` Hugh Dickins
2006-01-11 9:39 ` Nick Piggin [this message]
2006-01-11 9:34 ` Nick Piggin
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