Date: Thu, 15 Nov 2012 15:06:08 +0200 From: Andriy Gapon <avg@FreeBSD.org> To: freebsd-hackers@FreeBSD.org, freebsd-current@FreeBSD.org Subject: LK_SHARED/LK_DOWNGRADE adjustments to lock.9 manual page Message-ID: <50A4E8C0.5030608@FreeBSD.org>
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--===============4775165132330987913== Content-Type: text/plain; charset=X-VIET-VPS Content-Transfer-Encoding: 7bit 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 --===============4775165132330987913== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" --===============4775165132330987913==--
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