diff options
Diffstat (limited to 'sys/i386/xen/pmap.c')
| -rw-r--r-- | sys/i386/xen/pmap.c | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/sys/i386/xen/pmap.c b/sys/i386/xen/pmap.c index 208f5f6..ba56915 100644 --- a/sys/i386/xen/pmap.c +++ b/sys/i386/xen/pmap.c @@ -2665,7 +2665,7 @@ pmap_enter(pmap_t pmap, vm_offset_t va, vm_prot_t access, vm_page_t m, KASSERT(va < UPT_MIN_ADDRESS || va >= UPT_MAX_ADDRESS, ("pmap_enter: invalid to pmap_enter page table pages (va: 0x%x)", va)); - if ((m->oflags & (VPO_UNMANAGED | VPO_BUSY)) == 0) + if ((m->oflags & VPO_UNMANAGED) == 0 && !vm_page_xbusied(m)) VM_OBJECT_ASSERT_WLOCKED(m->object); mpte = NULL; @@ -3694,13 +3694,12 @@ pmap_is_modified(vm_page_t m) rv = FALSE; /* - * If the page is not VPO_BUSY, then PGA_WRITEABLE cannot be + * If the page is not exclusive busied, then PGA_WRITEABLE cannot be * concurrently set while the object is locked. Thus, if PGA_WRITEABLE * is clear, no PTEs can have PG_M set. */ VM_OBJECT_ASSERT_WLOCKED(m->object); - if ((m->oflags & VPO_BUSY) == 0 && - (m->aflags & PGA_WRITEABLE) == 0) + if (!vm_page_xbusied(m) && (m->aflags & PGA_WRITEABLE) == 0) return (rv); rw_wlock(&pvh_global_lock); sched_pin(); @@ -3825,13 +3824,12 @@ pmap_remove_write(vm_page_t m) ("pmap_remove_write: page %p is not managed", m)); /* - * If the page is not VPO_BUSY, then PGA_WRITEABLE cannot be set by - * another thread while the object is locked. Thus, if PGA_WRITEABLE - * is clear, no page table entries need updating. + * If the page is not exclusive busied, then PGA_WRITEABLE cannot be + * set by another thread while the object is locked. Thus, + * if PGA_WRITEABLE is clear, no page table entries need updating. */ VM_OBJECT_ASSERT_WLOCKED(m->object); - if ((m->oflags & VPO_BUSY) == 0 && - (m->aflags & PGA_WRITEABLE) == 0) + if (!vm_page_xbusied(m) && (m->aflags & PGA_WRITEABLE) == 0) return; rw_wlock(&pvh_global_lock); sched_pin(); @@ -3931,13 +3929,13 @@ pmap_clear_modify(vm_page_t m) KASSERT((m->oflags & VPO_UNMANAGED) == 0, ("pmap_clear_modify: page %p is not managed", m)); VM_OBJECT_ASSERT_WLOCKED(m->object); - KASSERT((m->oflags & VPO_BUSY) == 0, - ("pmap_clear_modify: page %p is busy", m)); + KASSERT(!vm_page_xbusied(m), + ("pmap_clear_modify: page %p is exclusive busied", m)); /* * If the page is not PGA_WRITEABLE, then no PTEs can have PG_M set. * If the object containing the page is locked and the page is not - * VPO_BUSY, then PGA_WRITEABLE cannot be concurrently set. + * exclusive busied, then PGA_WRITEABLE cannot be concurrently set. */ if ((m->aflags & PGA_WRITEABLE) == 0) return; |
