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perf/x86: Make merge_attr() global to use from perf_event_intel

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merge_attr() allows to merge two sysfs attribute tables.
Export it to be usable by other files too.

Next patch is going to use that to extend the sysfs format
attributes for a CPU.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: eranian@google.com
Link: http://lkml.kernel.org/r/1435612935-24425-1-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Andi Kleen 2015-06-29 14:22:13 -07:00 committed by Ingo Molnar
parent 90405aa022
commit 47732d8863
2 changed files with 4 additions and 1 deletions
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2
arch/x86/kernel/cpu/perf_event.c
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@ -1551,7 +1551,7 @@ static void __init filter_events(struct attribute **attrs)
}
/* Merge two pointer arrays */
static __init struct attribute **merge_attr(struct attribute **a, struct attribute **b)
__init struct attribute **merge_attr(struct attribute **a, struct attribute **b)
{
struct attribute **new;
int j, i;

3
arch/x86/kernel/cpu/perf_event.h
View File

@ -795,6 +795,8 @@ static inline void set_linear_ip(struct pt_regs *regs, unsigned long ip)
ssize_t x86_event_sysfs_show(char *page, u64 config, u64 event);
ssize_t intel_event_sysfs_show(char *page, u64 config);
struct attribute **merge_attr(struct attribute **a, struct attribute **b);
#ifdef CONFIG_CPU_SUP_AMD
int amd_pmu_init(void);
@ -926,6 +928,7 @@ static inline int is_ht_workaround_enabled(void)
{
return !!(x86_pmu.flags & PMU_FL_EXCL_ENABLED);
}
#else /* CONFIG_CPU_SUP_INTEL */
static inline void reserve_ds_buffers(void)