Alfred Perlstein 2395531439 Introduce a global lock for the vm subsystem (vm_mtx). ... vm_mtx does not recurse and is required for most low level vm operations. faults can not be taken without holding Giant. Memory subsystems can now call the base page allocators safely. Almost all atomic ops were removed as they are covered under the vm mutex. Alpha and ia64 now need to catch up to i386's trap handlers. FFS and NFS have been tested, other filesystems will need minor changes (grabbing the vm lock when twiddling page properties). Reviewed (partially) by: jake, jhb		2001-05-19 01:28:09 +00:00
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union_subr.c	Introduce a global lock for the vm subsystem (vm_mtx).	2001-05-19 01:28:09 +00:00
union_vfsops.c	Change the second argument of vflush() to an integer that specifies	2001-05-16 18:04:37 +00:00
union_vnops.c	Currently there is no way to tell if write operation invoked via	2001-05-18 07:43:13 +00:00
union.h	Use vop_*vobject() VOPs to get reference to VM object from upper or lower fs.	2001-05-17 04:52:57 +00:00