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| author | attilio <attilio@FreeBSD.org> | 2013-02-20 10:38:34 +0000 |
|---|---|---|
| committer | attilio <attilio@FreeBSD.org> | 2013-02-20 10:38:34 +0000 |
| commit | 658534ed5a02db4fef5b0630008502474d6c26d6 (patch) | |
| tree | 567755b13eb4e24198cc8098e62ff4a975f8486c /sys/i386/xen/pmap.c | |
| parent | 5dce0c1384f698b3a27a82e72e3cbcf49b325404 (diff) | |
| download | FreeBSD-src-658534ed5a02db4fef5b0630008502474d6c26d6.zip FreeBSD-src-658534ed5a02db4fef5b0630008502474d6c26d6.tar.gz | |
Switch vm_object lock to be a rwlock.
* VM_OBJECT_LOCK and VM_OBJECT_UNLOCK are mapped to write operations
* VM_OBJECT_SLEEP() is introduced as a general purpose primitve to
get a sleep operation using a VM_OBJECT_LOCK() as protection
* The approach must bear with vm_pager.h namespace pollution so many
files require including directly rwlock.h
Diffstat (limited to 'sys/i386/xen/pmap.c')
| -rw-r--r-- | sys/i386/xen/pmap.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/sys/i386/xen/pmap.c b/sys/i386/xen/pmap.c index a8f11a4..a8281be 100644 --- a/sys/i386/xen/pmap.c +++ b/sys/i386/xen/pmap.c @@ -2871,7 +2871,7 @@ pmap_enter_object(pmap_t pmap, vm_offset_t start, vm_offset_t end, multicall_entry_t *mclp = mcl; int error, count = 0; - VM_OBJECT_LOCK_ASSERT(m_start->object, MA_OWNED); + VM_OBJECT_LOCK_ASSERT(m_start->object, RA_WLOCKED); psize = atop(end - start); mpte = NULL; m = m_start; @@ -3111,7 +3111,7 @@ pmap_object_init_pt(pmap_t pmap, vm_offset_t addr, vm_object_t object, vm_page_t p; int pat_mode; - VM_OBJECT_LOCK_ASSERT(object, MA_OWNED); + VM_OBJECT_LOCK_ASSERT(object, RA_WLOCKED); KASSERT(object->type == OBJT_DEVICE || object->type == OBJT_SG, ("pmap_object_init_pt: non-device object")); if (pseflag && @@ -3657,7 +3657,7 @@ pmap_is_modified(vm_page_t m) * concurrently set while the object is locked. Thus, if PGA_WRITEABLE * is clear, no PTEs can have PG_M set. */ - VM_OBJECT_LOCK_ASSERT(m->object, MA_OWNED); + VM_OBJECT_LOCK_ASSERT(m->object, RA_WLOCKED); if ((m->oflags & VPO_BUSY) == 0 && (m->aflags & PGA_WRITEABLE) == 0) return (rv); @@ -3788,7 +3788,7 @@ pmap_remove_write(vm_page_t m) * another thread while the object is locked. Thus, if PGA_WRITEABLE * is clear, no page table entries need updating. */ - VM_OBJECT_LOCK_ASSERT(m->object, MA_OWNED); + VM_OBJECT_LOCK_ASSERT(m->object, RA_WLOCKED); if ((m->oflags & VPO_BUSY) == 0 && (m->aflags & PGA_WRITEABLE) == 0) return; @@ -3889,7 +3889,7 @@ pmap_clear_modify(vm_page_t m) KASSERT((m->oflags & VPO_UNMANAGED) == 0, ("pmap_clear_modify: page %p is not managed", m)); - VM_OBJECT_LOCK_ASSERT(m->object, MA_OWNED); + VM_OBJECT_LOCK_ASSERT(m->object, RA_WLOCKED); KASSERT((m->oflags & VPO_BUSY) == 0, ("pmap_clear_modify: page %p is busy", m)); |
