Matthew Dillon f94f8efc61 Optimize two cases in the MP locking code. First, it is not necessary ... to use a locked cmpexg when unlocking a lock that we already hold, since nobody else can touch the lock while we hold it. Second, it is not necessary to use a locked cmpexg when locking a lock that we already hold, for the same reason. These changes will allow MP locks to be used recursively without impacting performance. Modify two procedures that are called only by assembly and are already NOPROF entries to pass a critical argument in %edx instead of on the stack, removing a significant amount of code from the critical path as a consequence. Reviewed by: Alfred Perlstein <bright@wintelcom.net>, Peter Wemm <peter@netplex.com.au>		1999-11-19 22:47:19 +00:00
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apm	Use DRIVER_MODULE(), apm.c already takes care of it's devices with	1999-11-08 07:44:26 +00:00
bios	Use DRIVER_MODULE(), apm.c already takes care of it's devices with	1999-11-08 07:44:26 +00:00
boot	GC bdbtofsb()	1999-09-26 19:05:39 +00:00
conf	Hack: comment out the pull-in of src/sys/../share/mk/bsd.kern.mk as	1999-11-18 09:54:11 +00:00
eisa	Delete unneeded #include	1999-10-11 14:42:33 +00:00
i386	Use LIST_FOREACH to traverse the allproc list.	1999-11-19 21:34:50 +00:00
ibcs2	Fix case where vnode could be unlocked twice. Untested; bug found by code	1999-11-14 17:33:40 +00:00
include	Optimize two cases in the MP locking code. First, it is not necessary	1999-11-19 22:47:19 +00:00
isa	Optimize two cases in the MP locking code. First, it is not necessary	1999-11-19 16:49:30 +00:00
linux	simplify check for device.	1999-11-08 09:59:17 +00:00
pci	If we have found pci devices via pci_cfgopen(), but don't find a	1999-11-18 08:58:37 +00:00
svr4	useracc() the prequel:	1999-10-29 18:09:36 +00:00
Makefile	$Id$ -> $FreeBSD$	1999-08-28 01:08:13 +00:00