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Date: Tue, 18 Jul 2006 13:55:52 +0200 From: Martin Schwidefsky <schwidefsky@...ibm.com> To: linux-kernel@...r.kernel.org, Andreas.Krebbel@...ibm.com Subject: [patch 4/6] s390: get_clock inline assembly. From: Andreas Krebbel <Andreas.Krebbel@...ibm.com> [S390] get_clock inline assembly. Add missing volatile to the get_clock / get_cycles inline assemblies to avoid that consecutive calls get optimized away. Signed-off-by: Andreas Krebbel <krebbel1@...ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@...ibm.com> --- include/asm-s390/timex.h | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff -urpN linux-2.6/include/asm-s390/timex.h linux-2.6-patched/include/asm-s390/timex.h --- linux-2.6/include/asm-s390/timex.h 2006-06-18 03:49:35.000000000 +0200 +++ linux-2.6-patched/include/asm-s390/timex.h 2006-07-18 13:40:45.000000000 +0200 @@ -19,7 +19,7 @@ static inline cycles_t get_cycles(void) { cycles_t cycles; - __asm__("stck 0(%1)" : "=m" (cycles) : "a" (&cycles) : "cc"); + __asm__ __volatile__ ("stck 0(%1)" : "=m" (cycles) : "a" (&cycles) : "cc"); return cycles >> 2; } @@ -27,7 +27,7 @@ static inline unsigned long long get_clo { unsigned long long clk; - __asm__("stck 0(%1)" : "=m" (clk) : "a" (&clk) : "cc"); + __asm__ __volatile__ ("stck 0(%1)" : "=m" (clk) : "a" (&clk) : "cc"); return clk; } - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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