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) ?
Also,is there any hard and fast rule prescribing which method of taking the
Giant should be used where in the kernel ?
TIA.
Regards,
Pranav
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