On Sun, Mar 12, 2006 at 04:25:07PM +0530, Pranav Peshwe wrote: > Hello, > What is effectively the difference between PICKUP/DROP_GIANT and > mtx_lock/unlock(&Giant) ? From the macro expansion, i surmise that > PICKUP/DROP_GIANT deals with recursion in Giant locking.Is this correct ? is > this the only difference ? What will happen if i mix the usage of > PICKUP/DROP_GIANT and mtx_lock/unlock(&Giant) ?
You can't mix them, because they are used in different situtation. You call DROP_GIANT and later PICKUP to handle situations where it is required to drop GIANT for a while. You call mtx_lock and later unlock to hold GIANT for a while. -- B.Walter http://www.bwct.de http://www.fizon.de [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
