d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Achieve two goals at once: (1) Avoid an unnecessary broadcast TLB

Browse Source 
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
This commit is contained in:
alc 2019-11-19 19:05:05 +00:00
parent 4b036ba296
commit 2cac79878c
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
sys/arm64/arm64/pmap.c
View File

@ -2062,12 +2062,13 @@ reclaim_pv_chunk(pmap_t locked_pmap, struct rwlock **lockp)
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++;