Jeff Roberson 8de00f4a87 This patch adds the "LOCKSHARED" option to namei which causes it to only acquire shared locks on leafs. ... The stat() and open() calls have been changed to make use of this new functionality. Using shared locks in these cases is sufficient and can significantly reduce their latency if IO is pending to these vnodes. Also, this reduces the number of exclusive locks that are floating around in the system, which helps reduce the number of deadlocks that occur. A new kernel option "LOOKUP_SHARED" has been added. It defaults to off so this patch can be turned on for testing, and should eventually go away once it is proven to be stable. I have personally been running this patch for over a year now, so it is believed to be fully stable. Reviewed by: jake, obrien Approved by: jake		2002-03-12 04:00:11 +00:00
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alpha	Fix a misspelling of mine: s/optomization/optimization/.	2002-03-11 19:58:53 +00:00
amd64	Export a (machine dependent) kernel variable bootdev as	2002-03-10 20:08:44 +00:00
arm
boot	CG superfluous prototype.	2002-03-10 22:33:04 +00:00
cam	Mark some arguments __unused.	2002-03-11 08:04:59 +00:00
coda	Simple p_ucred -> td_ucred changes to start using the per-thread ucred	2002-02-27 18:32:23 +00:00
compat	Simple p_ucred -> td_ucred changes to start using the per-thread ucred	2002-02-27 18:32:23 +00:00
conf	This patch adds the "LOCKSHARED" option to namei which causes it to only acquire shared locks on leafs.	2002-03-12 04:00:11 +00:00
contrib	Change two occurrences of HTONS() to use htons().	2002-02-28 09:56:31 +00:00
crypto	- Speedup 3DES by using assembly code for i386.	2002-03-05 09:19:02 +00:00
ddb	Allow '.' in identifiers - some ia64 register names contain '.'.	2002-03-10 17:08:24 +00:00
dev	Do not concatenate __func__ with strings, because it is not a string.	2002-03-12 00:15:06 +00:00
fs	If in strategy we find that we have no devsw on the device anymore we	2002-03-05 13:25:57 +00:00
geom	First commit of the GEOM subsystem to make it easier for people to	2002-03-11 21:42:35 +00:00
gnu	Remove use of the bogus ioctl DIOCGPART.	2002-03-11 10:11:00 +00:00
i4b	remove BSD/OS specific ppp-interface file since the FreeBSD-BSD/OS merger	2002-03-09 13:18:24 +00:00
i386	Add commented out GEOM line to NOTES	2002-03-11 08:27:23 +00:00
ia64	Fix some -Wunused warnings by "using" a macro argument	2002-03-12 00:19:14 +00:00
isa	Add SONY VAIO psm controller ISA-PnP ID.	2002-03-10 12:22:17 +00:00
isofs/cd9660	Simple p_ucred -> td_ucred changes to start using the per-thread ucred	2002-02-27 18:32:23 +00:00
kern	This patch adds the "LOCKSHARED" option to namei which causes it to only acquire shared locks on leafs.	2002-03-12 04:00:11 +00:00
libkern	DBA update: used the wrong of several NAI DBAs.	2002-03-07 17:52:03 +00:00
modules	Add generalized power profile code.	2002-03-04 18:46:13 +00:00
net	Simplify the interface cloning framework by handling unit	2002-03-11 09:26:07 +00:00
netatalk
netatm	Unbreak fore adapters from POV of warnings.	2002-02-27 21:12:44 +00:00
netgraph	Official timeout routines for netgraph nodes that know how to	2002-03-05 20:26:20 +00:00
netinet	o Add INET_ADDRSTRLEN and INET6_ADDRSTRLEN defines to <arpa/inet.h>	2002-03-10 06:42:27 +00:00
netinet6	o Add INET_ADDRSTRLEN and INET6_ADDRSTRLEN defines to <arpa/inet.h>	2002-03-10 06:42:27 +00:00
netipx
netkey	missing splx	2002-03-01 13:13:17 +00:00
netnatm	Fix warnings	2002-02-28 03:02:20 +00:00
netncp
netns
netsmb	Simple p_ucred -> td_ucred changes to start using the per-thread ucred	2002-02-27 18:32:23 +00:00
nfs
nfsclient	vhold() our vnode while checking the remote side.	2002-03-08 13:43:43 +00:00
nfsserver	Simple p_ucred -> td_ucred changes to start using the per-thread ucred	2002-02-27 18:32:23 +00:00
pc98	Free allocated buffer at siodetach().	2002-03-10 07:22:42 +00:00
pccard	Get the generic name right	2002-03-03 01:04:39 +00:00
pci	Fix warning; amdsmb_abort() is not used.	2002-02-26 01:04:58 +00:00
posix4
powerpc	Correct a typo. (* that should've been &)	2002-03-11 07:09:42 +00:00
rpc
security/lomac	Simple p_ucred -> td_ucred changes to start using the per-thread ucred	2002-02-27 18:32:23 +00:00
sparc64	Fix the type of some constants, and make some macros safer by casting	2002-03-11 03:04:28 +00:00
svr4
sys	This patch adds the "LOCKSHARED" option to namei which causes it to only acquire shared locks on leafs.	2002-03-12 04:00:11 +00:00
tools	Return vnode_if back to its AWK roots.	2002-03-01 01:20:23 +00:00
ufs	Fix a bug in ufsdirhash_adjfree() that caused it to incorrectly	2002-03-11 19:13:22 +00:00
vm	- Remove a number of extra newlines that do not belong here according to	2002-03-10 21:52:48 +00:00
Makefile