lkml.org 
[lkml]   [2017]   [Sep]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 2/3] kcov: remove pointless current != NULL check
Date
__sanitizer_cov_trace_pc() is a hot code, so it's worth
to remove pointless '!current' check. Current is never NULL.

Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
---
kernel/kcov.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/kcov.c b/kernel/kcov.c
index 2f0e7a7c7afc..14cc8c1a7cad 100644
--- a/kernel/kcov.c
+++ b/kernel/kcov.c
@@ -61,7 +61,7 @@ void notrace __sanitizer_cov_trace_pc(void)
* We are interested in code coverage as a function of a syscall inputs,
* so we ignore code executed in interrupts.
*/
- if (!t || !in_task())
+ if (!in_task())
return;
mode = READ_ONCE(t->kcov_mode);
if (mode == KCOV_MODE_TRACE) {
--
2.13.5
\
 
 \ /
  Last update: 2017-09-19 14:45    [W:0.105 / U:0.184 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site