Konstantin Belousov 872d995f76 Change the pmap_ts_referenced() method of amd64 pmap to use shared ... pvh_global_lock. This allows the method to be executed in parallel, avoiding undue contention on the pvh_global_lock for the multithreaded pagedaemon. The pmap_ts_referenced() function has to inspect the page mappings for several pmaps, which need to be locked while pv list lock is owned. This contradicts to the lock order, where pmap lock is before pv list lock. Introduce the generation count for the pv list of the page or superpage, which indicate any change in the pv list, and, as usual, perform restart of the iteration if generation changed while pv lock was dropped for blocking acquire of a pmap lock. Reported and tested by: pho Reviewed by: alc Sponsored by: The FreeBSD Foundation		2013-08-07 16:33:15 +00:00
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acpica	Consistently use round_page(x) rather than roundup(x, PAGE_SIZE). There is	2013-02-15 22:43:08 +00:00
amd64	Change the pmap_ts_referenced() method of amd64 pmap to use shared	2013-08-07 16:33:15 +00:00
conf	enable KDB_TRACE in GENERICs	2013-08-07 08:03:50 +00:00
ia32	Use slightly more idiomatic expression to get the address of array.	2013-05-27 18:39:39 +00:00
include	Change the pmap_ts_referenced() method of amd64 pmap to use shared	2013-08-07 16:33:15 +00:00
linux32	Retire write-only PCB_GS32BIT pcb flag on amd64.	2013-05-09 21:42:43 +00:00
pci	Remove duplicate code. Reduce diff between amd64 and i386.	2012-12-01 00:56:19 +00:00
vmm	Follow-up commit to fix CR0 issues. Maintain	2013-08-03 03:16:42 +00:00
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