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0f5f789c0d
freebsd-dev/sys
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Kirk McKusick 0f5f789c0d The buffer daemon cannot skip over buffers owned by locked inodes as 
they may be the only viable ones to flush. Thus it will now wait for
an inode lock if the other alternatives will result in rollbacks (and
immediate redirtying of the buffer). If only buffers with rollbacks
are available, one will be flushed, but then the buffer daemon will
wait briefly before proceeding. Failing to wait briefly effectively
deadlocks a uniprocessor since every other process writing to that
filesystem will wait for the buffer daemon to clean up which takes
close enough to forever to feel like a deadlock.

Reported by:	Archie Cobbs <archie@dellroad.org>
Sponsored by:   DARPA & NAI Labs.
Approved by:	re
2002-12-14 01:35:30 +00:00
..
alpha Backout removal SCARGS, the code freeze is only "selectively" over. 2002-12-13 22:41:47 +00:00
amd64 Backout removal SCARGS, the code freeze is only "selectively" over. 2002-12-13 22:41:47 +00:00
arm Add standards visibility conditionals. Change any uses of sigset_t to 2002-10-13 00:31:46 +00:00
boot Uniformly refer to a file system as "file system". 2002-12-12 17:26:04 +00:00
cam Clear the "device open" flag in daopen() before returning a error, 2002-12-12 18:09:35 +00:00
coda Back our kernel support for reliable signal queues. 2002-10-01 17:15:53 +00:00
compat Backout removal SCARGS, the code freeze is only "selectively" over. 2002-12-13 22:41:47 +00:00
conf Move the amd(4) driver to it's own directory in preparation for it growing 2002-12-13 22:59:18 +00:00
contrib Resolve conflicts arising from the ACPI CA 20021118 import. 2002-11-27 18:09:20 +00:00
crypto Make this compilable from userland as well. 2002-11-01 08:56:39 +00:00
ddb - Rename the DDB specific %z printf format to %y. 2002-10-25 19:41:32 +00:00
dev Move the amd(4) driver to it's own directory in preparation for it growing 2002-12-13 22:59:18 +00:00
fs Keep trying to flush the vnode list for the mount while some are still 2002-12-13 23:44:00 +00:00
geom Add a couple of KASSERTS, just in case. 2002-12-13 22:04:45 +00:00
gnu MFufs 1.33: 2002-10-18 21:41:41 +00:00
i4b network interface and link layer changes: 2002-11-15 00:00:15 +00:00
i386 Backout removal SCARGS, the code freeze is only "selectively" over. 2002-12-13 22:41:47 +00:00
ia64 Backout removal SCARGS, the code freeze is only "selectively" over. 2002-12-13 22:41:47 +00:00
isa Use the correct value when writing the Day Of Week byte in the CMOS. 2002-12-04 13:46:49 +00:00
isofs/cd9660 Unbreak MNT_UPDATE when running with cd as root. Detect mountroot by 2002-11-02 20:16:55 +00:00
kern The buffer daemon cannot skip over buffers owned by locked inodes as 2002-12-14 01:35:30 +00:00
libkern Fix instances of macros with improperly parenthasized arguments. 2002-11-09 12:55:07 +00:00
modules libmchain no longer exports m_fixhdr(); remove it from EXPORT_SYMS. 2002-12-14 00:01:51 +00:00
net MFS: recognize gre packets used in the WCCP protocol. 2002-12-07 14:22:05 +00:00
netatalk Add more ethernet types and move AppleTalk types into proper location. 2002-09-06 17:02:29 +00:00
netatm - Change the ATM stack functions to use intptr_t instead of int for opaque 2002-11-08 18:27:30 +00:00
netgraph Fix two bugs: 2002-12-14 00:56:07 +00:00
netinet MFS: recognize gre packets used in the WCCP protocol. 2002-12-07 14:22:05 +00:00
netinet6 plugged memory leakage in some erroneous cases 2002-10-31 19:45:48 +00:00
netipsec FAST_IPSEC fixups: 2002-11-08 23:37:50 +00:00
netipx Fix a sizeof(int) != sizeof(void *) warning. 2002-11-08 21:16:27 +00:00
netkey
netnatm Be consistent about functions being static. 2002-10-16 09:19:17 +00:00
netncp - Change mb_copy_t to take a size_t as the length argument instead of an 2002-11-08 21:26:32 +00:00
netns Use m_length() instead of home-rolled versions. 2002-09-18 19:44:14 +00:00
netsmb fix connecting to (samba) server when share-level security is in effect 2002-12-07 08:28:56 +00:00
nfs Change iov_base's type from char *' to the standard void *'. All 2002-10-11 14:58:34 +00:00
nfsclient reapply 1.26 through 1.28. 2002-11-20 15:21:06 +00:00
nfsserver In the NFSv3 `fsinfo' procedure reply, don't claim that we support 2002-12-05 16:58:11 +00:00
opencrypto correct minor # in make_dev call 2002-11-08 23:07:41 +00:00
pc98 MFi386: revision 1.551. 2002-12-04 15:04:18 +00:00
pccard MFp4: 2002-11-27 06:04:49 +00:00
pci Move the amd(4) driver to it's own directory in preparation for it growing 2002-12-13 22:59:18 +00:00
posix4 Rework the sysconf(3) interaction with aio: 2002-11-17 04:15:34 +00:00
powerpc Unbreak the KSE code. Keep track of zobie threads using the Per-CPU storage 2002-12-10 02:33:45 +00:00
rpc
security Backout removal SCARGS, the code freeze is only "selectively" over. 2002-12-13 22:41:47 +00:00
sparc64 Unbreak the KSE code. Keep track of zobie threads using the Per-CPU storage 2002-12-10 02:33:45 +00:00
sys Backout removal SCARGS, the code freeze is only "selectively" over. 2002-12-13 22:41:47 +00:00
tools - Move ASSERT_VOP_*LOCK* functionality into functions in vfs_subr.c 2002-09-26 04:48:44 +00:00
ufs Remove the comment about dump(8) not working properly with snapshots. 2002-12-12 00:31:45 +00:00
vm Hold the page queues lock when calling pmap_protect(); it updates fields 2002-12-01 18:57:56 +00:00
Makefile