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Date: Sat, 9 Jan 2010 01:22:58 +0000
From: Soren Jacobsen <snj@netbsd.org>
Subject: CVS commit: [netbsd-5] src/sys/fs/puffs
To: source-changes@NetBSD.org
Message-Id: <20100109012258.3136A175DD@cvs.netbsd.org>
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Module Name:	src
Committed By:	snj
Date:		Sat Jan  9 01:22:58 UTC 2010

Modified Files:
	src/sys/fs/puffs [netbsd-5]: puffs_msgif.c puffs_sys.h puffs_vfsops.c

Log Message:
Pull up following revision(s) (requested by pooka in ticket #1212):
	sys/fs/puffs/puffs_msgif.c: revision 1.76 via patch
	sys/fs/puffs/puffs_sys.h: revision 1.73 via patch
	sys/fs/puffs/puffs_vfsops.c: revision 1.84 via patch
Process flush requests from the file server in a separate thread
context.  This fixes a long-standing but seldomly seen deadlock,
where the kernel was holding pages busy (due to e.g. readahead
request) while waiting for the server to respond, and the server
made a callback into the kernel asking to invalidate those pages.
... or, well, theoretically fixes, since I didn't have any reliable
way of repeating the deadlock and I think I saw it only twice.


To generate a diff of this commit:
cvs rdiff -u -r1.72 -r1.72.4.1 src/sys/fs/puffs/puffs_msgif.c
cvs rdiff -u -r1.70 -r1.70.20.1 src/sys/fs/puffs/puffs_sys.h
cvs rdiff -u -r1.81 -r1.81.8.1 src/sys/fs/puffs/puffs_vfsops.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.