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05 April 2024, 19:05:47 UTC
Revision cee58483cf56e0ba355fdd97ff5e8925329aa936 authored by John Stultz on 31 August 2012, 17:30:06 UTC, committed by Linus Torvalds on 01 September 2012, 17:24:48 UTC 
time: Move ktime_t overflow checking into timespec_valid_strict
 
Andreas Bombe reported that the added ktime_t overflow checking added to
timespec_valid in commit 4e8b14526ca7 ("time: Improve sanity checking of
timekeeping inputs") was causing problems with X.org because it caused
timeouts larger then KTIME_T to be invalid.

Previously, these large timeouts would be clamped to KTIME_MAX and would
never expire, which is valid.

This patch splits the ktime_t overflow checking into a new
timespec_valid_strict function, and converts the timekeeping codes
internal checking to use this more strict function.

Reported-and-tested-by: Andreas Bombe <aeb@debian.org>
Cc: Zhouping Liu <zliu@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 7a611e6
History
Tip revision: cee58483cf56e0ba355fdd97ff5e8925329aa936 authored by John Stultz on 31 August 2012, 17:30:06 UTC
time: Move ktime_t overflow checking into timespec_valid_strict
Tip revision: cee5848
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