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Commit 31e6cdef authored by James Hogan's avatar James Hogan Committed by Ingo Molnar
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metag: Remove TIF_POLLING_NRFLAG 



The Meta idle function jumps into the interrupt handler which
efficiently blocks waiting for the next interrupt when it reads the
interrupt status register (TXSTATI). No other (polling) idle functions
can be used, therefore TIF_POLLING_NRFLAG is unnecessary, so lets remove
it.

Peter Zijlstra said:
> Most archs have (x86) hlt or (arm) wfi like idle instructions, and if
> that is your only possible idle function, you'll require the interrupt
> to wake up and there's really no point to having the POLLING bit.

Signed-off-by: default avatarJames Hogan <james.hogan@imgtec.com>
Signed-off-by: default avatarPeter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/536CEB7E.9080007@imgtec.com


Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 08c373e5

arch/metag/include/asm/thread_info.h

+2 −4
Original line number Diff line number Diff line
@@ -117,10 +117,8 @@ static inline int kstack_end(void *addr) 
#define TIF_SECCOMP		5	/* secure computing */

#define TIF_RESTORE_SIGMASK	6	/* restore signal mask in do_signal() */

#define TIF_NOTIFY_RESUME	7	/* callback before returning to user */

#define TIF_POLLING_NRFLAG      8	/* true if poll_idle() is polling

					   TIF_NEED_RESCHED */

#define TIF_MEMDIE		9	/* is terminating due to OOM killer */

#define TIF_SYSCALL_TRACEPOINT  10	/* syscall tracepoint instrumentation */

#define TIF_MEMDIE		8	/* is terminating due to OOM killer */

#define TIF_SYSCALL_TRACEPOINT	9	/* syscall tracepoint instrumentation */





#define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)