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| author |   John Stultz <john.stultz@linaro.org> | 2015-06-17 11:16:43 -0700 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2015-06-18 15:28:14 +0200 |
| commit | 51a16c1e887a5975ada27a3ae935a4f2783005da (patch) | |
| tree | f2cae7425bb14b2e9b0d4a4e50dd7b841e9dd44a /include/linux/hrtimer.h | |
| parent | timekeeping: Copy the shadow-timekeeper over the real timekeeper last (diff) | |
| download | wireguard-linux-51a16c1e887a5975ada27a3ae935a4f2783005da.tar.xz wireguard-linux-51a16c1e887a5975ada27a3ae935a4f2783005da.zip | |
selftest: Timers: Avoid signal deadlock in leap-a-day
In 0c4a5fc95b1df (Add leap-second timer edge testing to
leap-a-day.c), we added a timer to the test which checks to make
sure timers near the leapsecond edge behave correctly.
However, the output generated from the timer uses ctime_r, which
isn't async-signal safe, and should that signal land while the
main test is using ctime_r to print its output, its possible for
the test to deadlock on glibc internal locks.
Thus this patch reworks the output to avoid using ctime_r in
the signal handler.
Signed-off-by: John Stultz <john.stultz@linaro.org>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jiri Bohac <jbohac@suse.cz>
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Ingo Molnar <mingo@kernel.org>
Link: http://lkml.kernel.org/r/1434565003-3386-1-git-send-email-john.stultz@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/hrtimer.h')
0 files changed, 0 insertions, 0 deletions