freebsd-dev/sys/i386
Konstantin Belousov c325e866f4 Different consumers of the struct vm_page abuse pageq member to keep
additional information, when the page is guaranteed to not belong to a
paging queue.  Usually, this results in a lot of type casts which make
reasoning about the code correctness harder.

Sometimes m->object is used instead of pageq, which could cause real
and confusing bugs if non-NULL m->object is leaked.  See r141955 and
r253140 for examples.

Change the pageq member into a union containing explicitly-typed
members.  Use them instead of type-punning or abusing m->object in x86
pmaps, uma and vm_page_alloc_contig().

Requested and reviewed by:	alc
Sponsored by:	The FreeBSD Foundation
2013-08-10 17:36:42 +00:00
..
acpica
bios
conf follow up to r254051 2013-08-09 08:11:09 +00:00
i386 Different consumers of the struct vm_page abuse pageq member to keep 2013-08-10 17:36:42 +00:00
ibcs2 Replace kernel virtual address space allocation with vmem. This provides 2013-08-07 06:21:20 +00:00
include Revert r253748,253749 2013-07-28 18:44:17 +00:00
isa
linux
pci Replace kernel virtual address space allocation with vmem. This provides 2013-08-07 06:21:20 +00:00
svr4
xbox
xen The soft and hard busy mechanism rely on the vm object lock to work. 2013-08-09 11:11:11 +00:00
Makefile