svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
vm_page_xunbusy(9)
Page identity is usually protected by higher level locks like
vm_object locks and vm page locks. However, sometimes it is not
possible to hold such locks for the time necessary to complete
the identity change. In such case the page can be exclusively
busied by a thread which needs to own the identity for a certain
amount of time. In other situations, threads do not need to
change the identity of the page but they want to prevent other
threads from changing the identity themselves. For example, when
a thread wants to access or update page contents without a lock
held the page is shared busied. Before busying a page the vm_ob‐
ject lock must be held. The same rule applies when a page is un‐
busied. This makes the vm_object lock a real busy interlock.
The function returns non-zero if the current thread busied in ei‐
ther exclusive or shared mode. Returns zero otherwise. The
function must be used to downgrade from an exclusive busy state
to a shared busy state. The function puts the invoking thread to
sleep using the appropriate waitchannels for the busy mechanism.
The parameter is a string describing the sleep condition for
userland tools. The function returns non-zero if the current
thread busied in shared mode. Returns zero otherwise. The func‐
tion shared busies The function puts the invoking thread to
sleep, using the appropriate waitchannels for the busy mechanism,
if is busied in either exclusive or shared mode. If the invoking
thread slept a non-zero value is returned, otherwise 0 is re‐
turned. The parameter is a string describing the sleep condition
for userland tools. The function shared unbusies The attempts to
shared busy If the operation cannot immediately succeed returns
0, otherwise a non-zero value is returned. The attempts to ex‐
clusive busy If the operation cannot immediately succeed returns
0, otherwise a non-zero value is returned. The function returns
non-zero if the current thread busied in exclusive mode. Returns
zero otherwise. The function exclusive busies The function ex‐
clusive unbusies Assertions on the busy state allow kernels com‐
piled with and to panic if they are not respected. The function
panics if is not shared busied. The function panics if is not
unbusied. The function panics if is not exclusive busied.