xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

x86/tracing: Disentangle pagefault and resched IPI tracing key

Browse Source 
The pagefault and the resched IPI handler are the only ones where it is
worth to optimize the code further in case tracepoints are disabled. But it
makes no sense to have a single static key for both.

Seperate the static keys so the facilities are handled seperately.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20170828064957.536699116@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Thomas Gleixner
2017-08-28 08:47:33 +02:00
committed by Ingo Molnar
parent 6f54f3ec6c
commit 809547472e
6 changed files with 59 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/x86/mm/fault.c
View File

@@ -1510,7 +1510,7 @@ do_page_fault(struct pt_regs *regs, unsigned long error_code)
enum ctx_state prev_state;
prev_state = exception_enter();
if (trace_irqvectors_enabled())
if (trace_pagefault_enabled())
trace_page_fault_entries(address, regs, error_code);
__do_page_fault(regs, error_code, address);