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

o Lock page queue accesses by vm_page_wire().

Browse Source
This commit is contained in:
Alan Cox 2002-07-14 19:36:15 +00:00
parent da8de1e204
commit e16cfdbea4
2 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sys/vm/vm_glue.c
View File

@ -328,12 +328,14 @@ vm_proc_swapin(struct proc *p)
}
if (upobj->resident_page_count != UAREA_PAGES)
panic("vm_proc_swapin: lost pages from upobj");
vm_page_lock_queues();
TAILQ_FOREACH(m, &upobj->memq, listq) {
m->valid = VM_PAGE_BITS_ALL;
vm_page_wire(m);
vm_page_wakeup(m);
vm_page_flag_set(m, PG_MAPPED | PG_WRITEABLE);
}
vm_page_unlock_queues();
up = (vm_offset_t)p->p_uarea;
pmap_qenter(up, ma, UAREA_PAGES);
}

2
sys/vm/vm_kern.c
View File

@ -419,8 +419,10 @@ kmem_malloc(map, size, flags)
*/
for (i = 0; i < size; i += PAGE_SIZE) {
m = vm_page_lookup(kmem_object, OFF_TO_IDX(offset + i));
vm_page_lock_queues();
vm_page_wire(m);
vm_page_wakeup(m);
vm_page_unlock_queues();
/*
* Because this is kernel_pmap, this call will not block.
*/