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authorMatt Fleming <matt@console-pimps.org>2009-06-13 22:23:27 +0100
committerPaul Mundt <lethal@linux-sh.org>2009-06-15 00:31:17 +0900
commit0c50f6f38399685d0c9ef0f5ffd6c4955e31cb26 (patch)
tree7709bc7ab43998a08028b744ecc1a3626568bb11 /drivers/serial
parent3767f3f1ee11da55760616a2c68a09c02babdd9b (diff)
sh: Make the atomic functions safe for irqsoff tracing
The irqsoff tracer uses the atomic_* functions internally, but the implementations of those functions in arch/sh/include/asm/atomic-irq.h disable irqs to achieve atomicity. A continuous loop ensues where we disable interrupts, trace the interrupt disabling, call atomic_* functions, disable interrupts, trace the interrupt disabling, etc.. The simplest solution to all this is to just convert uses of local_irq_save()/local_irq_restore() the raw_* equivalents because the raw_* equivalents don't call trace_hardirqs_on()/trace_hardirqs_off(). Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/serial')
0 files changed, 0 insertions, 0 deletions