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| author | Chuansheng Liu <chuansheng.liu@intel.com> | 2012-11-26 16:29:54 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-12-03 11:47:17 -0800 |
| commit | 53b360c604575070c83d2da83636af4e5c5de35a (patch) | |
| tree | f32a2a1681f43c565b4c36009d8e80ee947c3cd4 /kernel/rcutree_trace.c | |
| parent | 368c8c73d4648843bece41f7c083f11fa4d1aa36 (diff) | |
watchdog: using u64 in get_sample_period()
commit 8ffeb9b0e6369135bf03a073514f571ef10606b9 upstream.
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>
Signed-off-by: Shuah Khan <shuah.khan@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/rcutree_trace.c')
0 files changed, 0 insertions, 0 deletions