4 commits

Author	SHA1	Message	Date
Doug Rabson	7a0758ab68	* Redo the cmpset inlines to use one less register. This incidentally ... fixes a serious problem with the previous version where an input could have been placed in the same register as an output which would stop the inline from working properly. * Redo atomic_{set,clear,add,subtract}_{32,64} as inlines since the code sequence is shorter than the call sequence to the code in atomic.s. I will remove the functions from atomic.s after a grace period to allow people to rebuild kernel modules.	2000-09-12 22:45:44 +00:00
Poul-Henning Kamp	819e370c3b	Introduce atomic_cmpset_int() and atomic_cmpset_long() from SMPng a ... few hours earlier than the rest. The next DEVFS commit needs these functions. Alpha versions by: dfr i386 versions by: jakeb Approved by: SMPng	2000-09-06 11:21:14 +00:00
Peter Wemm	c3aac50f28	$Id$ -> $FreeBSD$	1999-08-28 01:08:13 +00:00
Doug Rabson	069e9bc1b4	Change various syscalls to use size_t arguments instead of u_int. ... Add some overflow checks to read/write (from bde). Change all modifications to vm_page::flags, vm_page::busy, vm_object::flags and vm_object::paging_in_progress to use operations which are not interruptable. Reviewed by: Bruce Evans <bde@zeta.org.au>	1998-08-24 08:39:39 +00:00