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git.karo-electronics.de Git - linux-beck.git/commit
watchdog: using u64 in get_sample_period()
In get_sample_period(), unsigned long is not enough:
watchdog_thresh * 2 * (NSEC_PER_SEC / 5)
case1:
watchdog_thresh is 10 by default, the sample value will be: 0xEE6B2800
case2:
set watchdog_thresh is 20, the sample value will be: 0x1 DCD6 5000
In case2, we need use u64 to express the sample period. Otherwise,
changing the threshold thru proc often can not be successful.
Signed-off-by: liu chuansheng <chuansheng.liu@intel.com>
Acked-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>