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author | Andreas Krebbel <krebbel1@de.ibm.com> | 2006-07-17 16:09:42 +0200 |
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committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2006-07-17 16:09:42 +0200 |
commit | 53ba5e09fe37518683ff8b3f28410ce0b9ed2f74 (patch) | |
tree | ad6a9bab92764cded45b812ea441da73caa54970 /include | |
parent | 13ffa927abb74d4365b0e22f186befe4746b5897 (diff) | |
download | linux-53ba5e09fe37518683ff8b3f28410ce0b9ed2f74.tar.gz linux-53ba5e09fe37518683ff8b3f28410ce0b9ed2f74.tar.bz2 linux-53ba5e09fe37518683ff8b3f28410ce0b9ed2f74.zip |
[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@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'include')
-rw-r--r-- | include/asm-s390/timex.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/asm-s390/timex.h b/include/asm-s390/timex.h index 4848057dafe4..5d0332a4c2bd 100644 --- a/include/asm-s390/timex.h +++ b/include/asm-s390/timex.h @@ -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_clock (void) { 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; } |