linux/kernel/debug
Baolin Wang 40b90efeae kdb: use ktime_get_mono_fast_ns() instead of ktime_get_ts()
The kdb code will print the monotonic time by ktime_get_ts(), but
the ktime_get_ts() will be protected by a sequence lock, that will
introduce one deadlock risk if the lock was already held in the
context from which we entered the debugger.

Thus we can use the ktime_get_mono_fast_ns() to get the monotonic
time, which is NMI safe access to clock monotonic. Moreover we can
remove the 'struct timespec', which is not y2038 safe.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2018-01-31 21:31:09 -06:00
..
kdb kdb: use ktime_get_mono_fast_ns() instead of ktime_get_ts() 2018-01-31 21:31:09 -06:00
debug_core.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/nmi.h> 2017-03-02 08:42:30 +01:00
debug_core.h kgdb/kdb: Fix no KDB config problem 2014-01-25 08:55:09 +01:00
gdbstub.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h> 2017-03-02 08:42:29 +01:00
Makefile