diff options
Diffstat (limited to 'share/man/man9/VOP_LOCK.9')
| -rw-r--r-- | share/man/man9/VOP_LOCK.9 | 61 |
1 files changed, 40 insertions, 21 deletions
diff --git a/share/man/man9/VOP_LOCK.9 b/share/man/man9/VOP_LOCK.9 index 3e31f09..f5068a6 100644 --- a/share/man/man9/VOP_LOCK.9 +++ b/share/man/man9/VOP_LOCK.9 @@ -57,41 +57,60 @@ same time. The arguments are: .Bl -tag -width flags .It Fa vp -the vnode being locked or unlocked +The vnode being locked or unlocked. .It Fa flags One of the lock request types: -.Bl -column LK_EXCLUPGRADE -offset indent -.It Dv LK_SHARED Ta "Shared lock" -.It Dv LK_EXCLUSIVE Ta "Exclusive lock" -.It Dv LK_UPGRADE Ta "Shared-to-exclusive upgrade" -.It Dv LK_EXCLUPGRADE Ta "First shared-to-exclusive upgrade" -.It Dv LK_DOWNGRADE Ta "Exclusive-to-shared downgrade" -.It Dv LK_RELEASE Ta "Release any type of lock" -.It Dv LK_DRAIN Ta "Wait for all lock activity to end" +.Pp +.Bl -tag -width ".Dv LK_EXCLUPGRADE" -offset indent -compact +.It Dv LK_SHARED +Shared lock. +.It Dv LK_EXCLUSIVE +Exclusive lock. +.It Dv LK_UPGRADE +Shared-to-exclusive upgrade. +.It Dv LK_EXCLUPGRADE +First shared-to-exclusive upgrade. +.It Dv LK_DOWNGRADE +Exclusive-to-shared downgrade. +.It Dv LK_RELEASE +Release any type of lock. +.It Dv LK_DRAIN +Wait for all lock activity to end. .El .Pp The lock type may be .Em or Ns 'ed with these lock flags: -.Bl -column LK_CANRECURSE -offset indent -.It Dv LK_NOWAIT Ta "Do not sleep to wait for lock" -.It Dv LK_SLEEPFAIL Ta "Sleep, then return failure" -.It Dv LK_CANRECURSE Ta "Allow recursive exclusive lock" -.It Dv LK_REENABLE Ta "Lock is to be reenabled after drain" -.It Dv LK_NOPAUSE Ta "No spinloop" +.Pp +.Bl -tag -width ".Dv LK_EXCLUPGRADE" -offset indent -compact +.It Dv LK_NOWAIT +Do not sleep to wait for lock. +.It Dv LK_SLEEPFAIL +Sleep, then return failure. +.It Dv LK_CANRECURSE +Allow recursive exclusive lock. +.It Dv LK_REENABLE +Lock is to be reenabled after drain. +.It Dv LK_NOPAUSE +No spinloop. .El .Pp The lock type may be .Em or Ns 'ed with these control flags: -.Bl -column LK_INTERLOCK -offset indent -.It Dv LK_INTERLOCK Ta "Specify when the caller already has a simple lock \ -(VOP_LOCK will unlock the simple lock after getting the lock)" -.It Dv LK_RETRY Ta "Retry until locked" -.It Dv LK_NOOBJ Ta "Don't create object" +.Pp +.Bl -tag -width ".Dv LK_EXCLUPGRADE" -offset indent -compact +.It Dv LK_INTERLOCK +Specify when the caller already has a simple lock +.Fn ( VOP_LOCK +will unlock the simple lock after getting the lock). +.It Dv LK_RETRY +Retry until locked. +.It Dv LK_NOOBJ +Don't create object. .El .It Fa td -thread context to use for the locks +Thread context to use for the locks. .El .Pp Kernel code should use |
