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sched/debug: Don't dump sched debug info in SysRq-W

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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 <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Steven Rostedt <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Rabin Vincent 2016-04-04 15:42:02 +02:00 • committed by Ingo Molnar
commit fb90a6e93c
1 changed files with 2 additions and 1 deletions
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3
kernel/sched/core.c
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@ -5050,7 +5050,8 @@ 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();
/*