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| author | kib <kib@FreeBSD.org> | 2015-02-11 23:28:28 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2015-02-11 23:28:28 +0000 |
| commit | e2cc9f9eca9038f5842e5369f7549028e2d3cc43 (patch) | |
| tree | b1cf18750ca0cb50091d06a262a48197bf1e6860 /sys | |
| parent | 34ff9bcd54998bbb7d38578c32136f1caf76b32b (diff) | |
| download | FreeBSD-src-e2cc9f9eca9038f5842e5369f7549028e2d3cc43.zip FreeBSD-src-e2cc9f9eca9038f5842e5369f7549028e2d3cc43.tar.gz | |
vm_page_lookup() accepts read-locked object.
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/x86/iommu/intel_utils.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/sys/x86/iommu/intel_utils.c b/sys/x86/iommu/intel_utils.c index b19b41c..8dc2f35 100644 --- a/sys/x86/iommu/intel_utils.c +++ b/sys/x86/iommu/intel_utils.c @@ -411,11 +411,9 @@ dmar_load_root_entry_ptr(struct dmar_unit *unit) */ DMAR_ASSERT_LOCKED(unit); - /* VM_OBJECT_RLOCK(unit->ctx_obj); */ - VM_OBJECT_WLOCK(unit->ctx_obj); + VM_OBJECT_RLOCK(unit->ctx_obj); root_entry = vm_page_lookup(unit->ctx_obj, 0); - /* VM_OBJECT_RUNLOCK(unit->ctx_obj); */ - VM_OBJECT_WUNLOCK(unit->ctx_obj); + VM_OBJECT_RUNLOCK(unit->ctx_obj); dmar_write8(unit, DMAR_RTADDR_REG, VM_PAGE_TO_PHYS(root_entry)); dmar_write4(unit, DMAR_GCMD_REG, unit->hw_gcmd | DMAR_GCMD_SRTP); /* XXXKIB should have a timeout */ |
