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| author | Frederic Weisbecker <fweisbec@gmail.com> | 2012-06-16 15:39:34 +0200 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2012-08-17 16:31:08 +0200 |
| commit | b952741c80790d2dc9f17fac6f15d87d58dea2a1 (patch) | |
| tree | d6d1e9bae89ad117052228de7c0d3a741b9b415b /arch/ia64/Kconfig | |
| parent | c7660994ed6b44d17dad0aac0d156da1e0a2f003 (diff) | |
| download | blackbird-op-linux-b952741c80790d2dc9f17fac6f15d87d58dea2a1.tar.gz blackbird-op-linux-b952741c80790d2dc9f17fac6f15d87d58dea2a1.zip | |
cputime: Generalize CONFIG_VIRT_CPU_ACCOUNTING
S390, ia64 and powerpc all define their own version
of CONFIG_VIRT_CPU_ACCOUNTING. Generalize the config
and its description to a single place to avoid
duplication.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Diffstat (limited to 'arch/ia64/Kconfig')
| -rw-r--r-- | arch/ia64/Kconfig | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 310cf5781fad..3c720ef6c32d 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -25,6 +25,7 @@ config IA64 select HAVE_GENERIC_HARDIRQS select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP + select HAVE_VIRT_CPU_ACCOUNTING select ARCH_DISCARD_MEMBLOCK select GENERIC_IRQ_PROBE select GENERIC_PENDING_IRQ if SMP @@ -340,17 +341,6 @@ config FORCE_MAX_ZONEORDER default "17" if HUGETLB_PAGE default "11" -config VIRT_CPU_ACCOUNTING - bool "Deterministic task and CPU time accounting" - default n - help - Select this option to enable more accurate task and CPU time - accounting. This is done by reading a CPU counter on each - kernel entry and exit and on transitions within the kernel - between system, softirq and hardirq state, so there is a - small performance impact. - If in doubt, say N here. - config SMP bool "Symmetric multi-processing support" select USE_GENERIC_SMP_HELPERS |
