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

Remove unnecessary page queues locking around vm_page_busy() and

Browse Source 
vm_page_wakeup().  (This change is applicable to RELENG_7 but not
RELENG_6.)

MFC after:	1 week
This commit is contained in:
Alan Cox 2009-02-14 18:23:52 +00:00
parent e4506c14fd
commit 6be00eca3f
2 changed files with 0 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
sys/amd64/amd64/pmap.c
View File

@ -3400,9 +3400,7 @@ retry:
}
p = vm_page_lookup(object, pindex);
vm_page_lock_queues();
vm_page_wakeup(p);
vm_page_unlock_queues();
}
ptepa = VM_PAGE_TO_PHYS(p);
@ -3416,15 +3414,11 @@ retry:
while ((pdpg =
pmap_allocpde(pmap, va, M_NOWAIT)) == NULL) {
PMAP_UNLOCK(pmap);
vm_page_lock_queues();
vm_page_busy(p);
vm_page_unlock_queues();
VM_OBJECT_UNLOCK(object);
VM_WAIT;
VM_OBJECT_LOCK(object);
vm_page_lock_queues();
vm_page_wakeup(p);
vm_page_unlock_queues();
PMAP_LOCK(pmap);
}
pde = (pd_entry_t *)PHYS_TO_DMAP(VM_PAGE_TO_PHYS(pdpg));

2
sys/i386/i386/pmap.c
View File

@ -3469,9 +3469,7 @@ retry:
}
p = vm_page_lookup(object, pindex);
vm_page_lock_queues();
vm_page_wakeup(p);
vm_page_unlock_queues();
}
ptepa = VM_PAGE_TO_PHYS(p);