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Code Issues Releases Activity

Eliminate the acquisition and release of the page queues lock around a call

Browse Source 
to vm_page_sleep_if_busy().
This commit is contained in:
Alan Cox 2006-08-06 06:29:16 +00:00
parent 7c4b7ecc4c
commit 14aaab5329
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=161016
2 changed files with 2 additions and 4 deletions
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3
sys/amd64/amd64/pmap.c
View File

@ -2506,7 +2506,6 @@ pmap_object_init_pt(pmap_t pmap, vm_offset_t addr,
retry:
p = vm_page_lookup(object, pindex);
if (p != NULL) {
vm_page_lock_queues();
if (vm_page_sleep_if_busy(p, FALSE, "init4p"))
goto retry;
} else {
@ -2525,8 +2524,8 @@ pmap_object_init_pt(pmap_t pmap, vm_offset_t addr,
p = vm_page_lookup(object, pindex);
vm_page_lock_queues();
vm_page_wakeup(p);
vm_page_unlock_queues();
}
vm_page_unlock_queues();
ptepa = VM_PAGE_TO_PHYS(p);
if (ptepa & (NBPDR - 1))

3
sys/i386/i386/pmap.c
View File

@ -2581,7 +2581,6 @@ pmap_object_init_pt(pmap_t pmap, vm_offset_t addr,
retry:
p = vm_page_lookup(object, pindex);
if (p != NULL) {
vm_page_lock_queues();
if (vm_page_sleep_if_busy(p, FALSE, "init4p"))
goto retry;
} else {
@ -2600,8 +2599,8 @@ pmap_object_init_pt(pmap_t pmap, vm_offset_t addr,
p = vm_page_lookup(object, pindex);
vm_page_lock_queues();
vm_page_wakeup(p);
vm_page_unlock_queues();
}
vm_page_unlock_queues();
ptepa = VM_PAGE_TO_PHYS(p);
if (ptepa & (NBPDR - 1))