diff options
| author | Rabin Vincent <rabinv@axis.com> | 2016-04-04 15:42:02 +0200 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-07-04 11:51:32 +0200 |
| commit | 5e74ded03d8321b49dfadfdcabd3c6c39d8ab649 (patch) | |
| tree | 3aa801b307c20643baf2613a76c1804129edfc78 /kernel/sched | |
| parent | 260c12cbd7dfeefd19a519939d72749f984ee915 (diff) | |
sched/debug: Don't dump sched debug info in SysRq-W
commit fb90a6e93c0684ab2629a42462400603aa829b9c upstream.
sysrq_sched_debug_show() can dump a lot of information. Don't print out
all that if we're just trying to get a list of blocked tasks (SysRq-W).
The information is still accessible with SysRq-T.
Signed-off-by: Rabin Vincent <rabinv@axis.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1459777322-30902-1-git-send-email-rabin.vincent@axis.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Nikolay Borisov <n.borisov.lkml@gmail.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/core.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 155160de7..69ac69e51 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -5297,7 +5297,8 @@ void show_state_filter(unsigned long state_filter) touch_all_softlockup_watchdogs(); #ifdef CONFIG_SCHED_DEBUG - sysrq_sched_debug_show(); + if (!state_filter) + sysrq_sched_debug_show(); #endif rcu_read_unlock(); /* |