Author: alc
Date: Tue Nov 19 19:05:05 2019
New Revision: 354860
URL: https://svnweb.freebsd.org/changeset/base/354860
Log:
Achieve two goals at once: (1) Avoid an unnecessary broadcast TLB
invalidation in reclaim_pv_chunk(). (2) Prevent an "invalid ASID" assertion
failure in reclaim_pv_chunk(). The detailed explanation for this change is
provided by r354792.
X-MFC with: r354792
Modified:
head/sys/arm64/arm64/pmap.c
Modified: head/sys/arm64/arm64/pmap.c
==============================================================================
--- head/sys/arm64/arm64/pmap.c Tue Nov 19 16:40:46 2019 (r354859)
+++ head/sys/arm64/arm64/pmap.c Tue Nov 19 19:05:05 2019 (r354860)
@@ -2062,12 +2062,13 @@ reclaim_pv_chunk(pmap_t locked_pmap, struct rwlock **l
if ((tpte & ATTR_SW_WIRED) != 0)
continue;
tpte = pmap_load_clear(pte);
- pmap_invalidate_page(pmap, va);
m = PHYS_TO_VM_PAGE(tpte & ~ATTR_MASK);
if (pmap_pte_dirty(tpte))
vm_page_dirty(m);
- if ((tpte & ATTR_AF) != 0)
+ if ((tpte & ATTR_AF) != 0) {
+ pmap_invalidate_page(pmap, va);
vm_page_aflag_set(m, PGA_REFERENCED);
+ }
CHANGE_PV_LIST_LOCK_TO_VM_PAGE(lockp, m);
TAILQ_REMOVE(&m->md.pv_list, pv, pv_next);
m->md.pv_gen++;
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