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authorIngo Molnar <mingo@elte.hu>2008-12-11 13:45:51 +0100
committerIngo Molnar <mingo@elte.hu>2008-12-11 15:45:53 +0100
commit01b2838c4298c5e0d30b4993c195ac34dd9df61e (patch)
tree56a526fb72bd068eb4e06aa79a7569e6afb4138a /kernel/perf_counter.c
parent5c92d12411dfe5f0f3d1b1c1e2f756245e6f7249 (diff)
downloadlwn-01b2838c4298c5e0d30b4993c195ac34dd9df61e.tar.gz
lwn-01b2838c4298c5e0d30b4993c195ac34dd9df61e.zip
perf counters: consolidate hw_perf save/restore APIs
Impact: cleanup Rename them to better match up the usual IRQ disable/enable APIs: hw_perf_disable_all() => hw_perf_save_disable() hw_perf_restore_ctrl() => hw_perf_restore() Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/perf_counter.c')
-rw-r--r--kernel/perf_counter.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c
index 506286e5ba63..0e93fea17120 100644
--- a/kernel/perf_counter.c
+++ b/kernel/perf_counter.c
@@ -43,8 +43,8 @@ hw_perf_counter_init(struct perf_counter *counter)
return ERR_PTR(-EINVAL);
}
-u64 __weak hw_perf_disable_all(void) { return 0; }
-void __weak hw_perf_restore_ctrl(u64 ctrl) { }
+u64 __weak hw_perf_save_disable(void) { return 0; }
+void __weak hw_perf_restore(u64 ctrl) { }
void __weak hw_perf_counter_setup(void) { }
#if BITS_PER_LONG == 64
@@ -180,9 +180,9 @@ static void __perf_counter_remove_from_context(void *info)
* Protect the list operation against NMI by disabling the
* counters on a global level. NOP for non NMI based counters.
*/
- perf_flags = hw_perf_disable_all();
+ perf_flags = hw_perf_save_disable();
list_del_counter(counter, ctx);
- hw_perf_restore_ctrl(perf_flags);
+ hw_perf_restore(perf_flags);
if (!ctx->task) {
/*
@@ -273,9 +273,9 @@ static void __perf_install_in_context(void *info)
* Protect the list operation against NMI by disabling the
* counters on a global level. NOP for non NMI based counters.
*/
- perf_flags = hw_perf_disable_all();
+ perf_flags = hw_perf_save_disable();
list_add_counter(counter, ctx);
- hw_perf_restore_ctrl(perf_flags);
+ hw_perf_restore(perf_flags);
ctx->nr_counters++;
@@ -495,13 +495,13 @@ void perf_counter_task_tick(struct task_struct *curr, int cpu)
/*
* Rotate the first entry last (works just fine for group counters too):
*/
- perf_flags = hw_perf_disable_all();
+ perf_flags = hw_perf_save_disable();
list_for_each_entry(counter, &ctx->counter_list, list_entry) {
list_del(&counter->list_entry);
list_add_tail(&counter->list_entry, &ctx->counter_list);
break;
}
- hw_perf_restore_ctrl(perf_flags);
+ hw_perf_restore(perf_flags);
spin_unlock(&ctx->lock);