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Code Issues Releases Activity

Eliminate unnecessary PG_BUSY tests. They originally served a purpose

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that is now handled by vm object locking.
This commit is contained in:
Alan Cox 2006-10-21 21:02:04 +00:00
parent 49caa8a9f8
commit 9fea8cad08
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=163594
2 changed files with 2 additions and 2 deletions
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2
sys/vm/vm_fault.c
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@ -995,7 +995,7 @@ vm_fault_prefault(pmap_t pmap, vm_offset_t addra, vm_map_entry_t entry)
}
if (((m->valid & VM_PAGE_BITS_ALL) == VM_PAGE_BITS_ALL) &&
(m->busy == 0) &&
(m->flags & (PG_BUSY | PG_FICTITIOUS)) == 0) {
(m->flags & PG_FICTITIOUS) == 0) {
vm_page_lock_queues();
if (VM_PAGE_INQUEUE1(m, PQ_CACHE))

2
sys/vm/vm_map.c
View File

@ -1494,7 +1494,7 @@ vm_map_pmap_enter(vm_map_t map, vm_offset_t addr, vm_prot_t prot,
}
if ((p->valid & VM_PAGE_BITS_ALL) == VM_PAGE_BITS_ALL &&
(p->busy == 0) &&
(p->flags & (PG_BUSY | PG_FICTITIOUS)) == 0) {
(p->flags & PG_FICTITIOUS) == 0) {
if (p_start == NULL) {
start = addr + ptoa(tmpidx);
p_start = p;