tree 936d0c8a6bd0b35f29198ae70adde0d753d73721
parent b0a4d8b3cf199e7277f659663ac3a3580e9967bb
author Benjamin Herrenschmidt <benh@kernel.crashing.org> 1371015544 +1000
committer Grant Likely <grant.likely@linaro.org> 1371157934 +0100

of: Fix locking vs. interrupts

The OF code uses irqsafe locks everywhere except in a handful of functions
for no obvious reasons. Since the conversion from the old rwlocks, this
now triggers lockdep warnings when used at interrupt time. At least one
driver (ibmvscsi) seems to be doing that from softirq context.

This converts the few non-irqsafe locks into irqsafe ones, making them
consistent with the rest of the code.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Grant Likely <grant.likely@linaro.org>