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H A D | spinlock.h | 7179ba52 Wed Jan 15 01:14:29 CST 2014 Michael Ellerman <mpe@ellerman.id.au> powerpc: Implement arch_spin_is_locked() using arch_spin_value_unlocked()
At a glance these are just the inverse of each other. The one subtlety is that arch_spin_value_unlocked() takes the lock by value, rather than as a pointer, which is important for the lockref code.
On the other hand arch_spin_is_locked() doesn't really care, so implement it in terms of arch_spin_value_unlocked().
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> 7179ba52 Wed Jan 15 01:14:29 CST 2014 Michael Ellerman <mpe@ellerman.id.au> powerpc: Implement arch_spin_is_locked() using arch_spin_value_unlocked() At a glance these are just the inverse of each other. The one subtlety is that arch_spin_value_unlocked() takes the lock by value, rather than as a pointer, which is important for the lockref code. On the other hand arch_spin_is_locked() doesn't really care, so implement it in terms of arch_spin_value_unlocked(). Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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