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| author | Stanislaw Gruszka <sgruszka@redhat.com> | 2016-11-15 03:06:49 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-11-15 09:51:04 +0100 |
| commit | 7008eb997bcfdd8c5274bb6672aa5d4e77994309 (patch) | |
| tree | fa45e3f2c4957561fe84c6813847c84937d6a735 | |
| parent | 9846d50df3def5bff9d8a408a958722e79bcaa10 (diff) | |
| download | linux-7008eb997bcfdd8c5274bb6672aa5d4e77994309.tar.bz2 | |
sched/cputime, powerpc: Remove cputime_last_delta global variable
Since commit:
cf9efce0ce313 ("powerpc: Account time using timebase rather than PURR")
cputime_last_delta is not initialized to other value than 0, hence it's
not used except zero check and cputime_to_scaled() just returns
the argument.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Paul Mackerras <paulus@ozlabs.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Michael Neuling <mikey@neuling.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1479175612-14718-2-git-send-email-fweisbec@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/powerpc/include/asm/cputime.h | 7 | ||||
| -rw-r--r-- | arch/powerpc/kernel/time.c | 2 |
2 files changed, 0 insertions, 9 deletions
diff --git a/arch/powerpc/include/asm/cputime.h b/arch/powerpc/include/asm/cputime.h index 4f60db074725..9f5dcf73b608 100644 --- a/arch/powerpc/include/asm/cputime.h +++ b/arch/powerpc/include/asm/cputime.h @@ -46,8 +46,6 @@ extern cputime_t cputime_one_jiffy; * Convert cputime <-> jiffies */ extern u64 __cputime_jiffies_factor; -DECLARE_PER_CPU(unsigned long, cputime_last_delta); -DECLARE_PER_CPU(unsigned long, cputime_scaled_last_delta); static inline unsigned long cputime_to_jiffies(const cputime_t ct) { @@ -58,11 +56,6 @@ static inline unsigned long cputime_to_jiffies(const cputime_t ct) * the last scaled to real ratio */ static inline cputime_t cputime_to_scaled(const cputime_t ct) { - if (cpu_has_feature(CPU_FTR_SPURR) && - __this_cpu_read(cputime_last_delta)) - return (__force u64) ct * - __this_cpu_read(cputime_scaled_last_delta) / - __this_cpu_read(cputime_last_delta); return ct; } diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index bc3f7d0d7b79..81051986739c 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -164,8 +164,6 @@ u64 __cputime_sec_factor; EXPORT_SYMBOL(__cputime_sec_factor); u64 __cputime_clockt_factor; EXPORT_SYMBOL(__cputime_clockt_factor); -DEFINE_PER_CPU(unsigned long, cputime_last_delta); -DEFINE_PER_CPU(unsigned long, cputime_scaled_last_delta); cputime_t cputime_one_jiffy; |