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

Eliminate an unnecessary check from vm_fault_prefault().

Browse Source
This commit is contained in:
Alan Cox 2009-10-25 17:30:50 +00:00
parent 573cb89b8d
commit 36930fc947
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=198472
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
sys/vm/vm_fault.c
View File

@ -1011,8 +1011,8 @@ vm_fault_prefault(pmap_t pmap, vm_offset_t addra, vm_map_entry_t entry)
while ((m = vm_page_lookup(lobject, pindex)) == NULL &&
lobject->type == OBJT_DEFAULT &&
(backing_object = lobject->backing_object) != NULL) {
if (lobject->backing_object_offset & PAGE_MASK)
break;
KASSERT((lobject->backing_object_offset & PAGE_MASK) ==
0, ("vm_fault_prefault: unaligned object offset"));
pindex += lobject->backing_object_offset >> PAGE_SHIFT;
VM_OBJECT_LOCK(backing_object);
VM_OBJECT_UNLOCK(lobject);