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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2021-01-14 12:35:28 +0100 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2021-01-29 05:35:51 +0100 |
| commit | a6a0683b71050d544febb08358f88f55aade47ce (patch) | |
| tree | 523ca15dabb96ad61085242e86ba7cee831b3826 /arch/x86/kernel/cpu/perfctr-watchdog.c | |
| parent | arch: sparc: Remove CONFIG_OPROFILE support (diff) | |
| download | linux-a6a0683b71050d544febb08358f88f55aade47ce.tar.xz linux-a6a0683b71050d544febb08358f88f55aade47ce.zip | |
arch: x86: Remove CONFIG_OPROFILE support
The "oprofile" user-space tools don't use the kernel OPROFILE support
any more, and haven't in a long time. User-space has been converted to
the perf interfaces.
Remove the old oprofile's architecture specific support.
Suggested-by: Christoph Hellwig <hch@infradead.org>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Robert Richter <rric@kernel.org>
Acked-by: William Cohen <wcohen@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/cpu/perfctr-watchdog.c')
| -rw-r--r-- | arch/x86/kernel/cpu/perfctr-watchdog.c | 11 |
1 files changed, 1 insertions, 10 deletions
diff --git a/arch/x86/kernel/cpu/perfctr-watchdog.c b/arch/x86/kernel/cpu/perfctr-watchdog.c index a5ee607a3b89..3ef5868ac588 100644 --- a/arch/x86/kernel/cpu/perfctr-watchdog.c +++ b/arch/x86/kernel/cpu/perfctr-watchdog.c @@ -3,7 +3,7 @@ * local apic based NMI watchdog for various CPUs. * * This file also handles reservation of performance counters for coordination - * with other users (like oprofile). + * with other users. * * Note that these events normally don't tick when the CPU idles. This means * the frequency varies with CPU load. @@ -105,15 +105,6 @@ static inline unsigned int nmi_evntsel_msr_to_bit(unsigned int msr) } -/* checks for a bit availability (hack for oprofile) */ -int avail_to_resrv_perfctr_nmi_bit(unsigned int counter) -{ - BUG_ON(counter > NMI_MAX_COUNTER_BITS); - - return !test_bit(counter, perfctr_nmi_owner); -} -EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi_bit); - int reserve_perfctr_nmi(unsigned int msr) { unsigned int counter; |