Mark Johnston eeacb3b02f Merge the vm_page hold and wire mechanisms. ... The hold_count and wire_count fields of struct vm_page are separate reference counters with similar semantics. The remaining essential differences are that holds are not counted as a reference with respect to LRU, and holds have an implicit free-on-last unhold semantic whereas vm_page_unwire() callers must explicitly determine whether to free the page once the last reference to the page is released. This change removes the KPIs which directly manipulate hold_count. Functions such as vm_fault_quick_hold_pages() now return wired pages instead. Since r328977 the overhead of maintaining LRU for wired pages is lower, and in many cases vm_fault_quick_hold_pages() callers would swap holds for wirings on the returned pages anyway, so with this change we remove a number of page lock acquisitions. No functional change is intended. __FreeBSD_version is bumped. Reviewed by: alc, kib Discussed with: jeff Discussed with: jhb, np (cxgbe) Tested by: pho (previous version) Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D19247		2019-07-08 19:46:20 +00:00
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booke_machdep.c	powerpc/booke: Check for the metadata address by physical address	2018-12-03 04:47:28 +00:00
locore.S	powerpc: Stop pretending we run on e500v1 cores	2019-04-30 03:45:46 +00:00
machdep_e500.c	sys/powerpc: further adoption of SPDX licensing ID tags.	2017-11-27 15:09:59 +00:00
machdep_ppc4xx.c	sys/powerpc: further adoption of SPDX licensing ID tags.	2017-11-27 15:09:59 +00:00
mp_cpudep.c	sys/powerpc: further adoption of SPDX licensing ID tags.	2017-11-27 15:09:59 +00:00
platform_bare.c	sys/powerpc: further adoption of SPDX licensing ID tags.	2017-11-27 15:09:59 +00:00
pmap.c	Merge the vm_page hold and wire mechanisms.	2019-07-08 19:46:20 +00:00
spe.c	powerpcspe: Correct SPE high-component loading	2019-01-13 04:51:24 +00:00
trap_subr.S	powerpc: Stop pretending we run on e500v1 cores	2019-04-30 03:45:46 +00:00