To people knowing the code, do the following documentation changes look correct?
--- a/share/man/man9/lock.9 +++ b/share/man/man9/lock.9 @@ -148,7 +148,9 @@ Flags indicating what action is to be taken. .Bl -tag -width ".Dv LK_CANRECURSE" .It Dv LK_SHARED Acquire a shared lock. -If an exclusive lock is currently held, it will be downgraded. +If an exclusive lock is currently held, +.Dv EDEADLK +will be returned. .It Dv LK_EXCLUSIVE Acquire an exclusive lock. If an exclusive lock is already held, and @@ -158,7 +160,8 @@ is not set, the system will .It Dv LK_DOWNGRADE Downgrade exclusive lock to a shared lock. Downgrading a shared lock is not permitted. -If an exclusive lock has been recursed, all references will be downgraded. +If an exclusive lock has been recursed, the system will +.Xr panic 9 . .It Dv LK_UPGRADE Upgrade a shared lock to an exclusive lock. If this call fails, the shared lock is lost. -- Andriy Gapon
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