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| author |   Arnd Bergmann <arnd@arndb.de> | 2017-11-10 16:58:27 +0100 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2017-12-04 20:32:53 -0500 |
| commit | 07ffd4ce80b9a452d8c8eb154924e19499302d00 (patch) | |
| tree | accc9c2cca61f6f9b816a63d9b0e629a5b917add /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | scsi: 3ware: use 64-bit times for FW time sync (diff) | |
scsi: 3w-9xxx: rework lock timeouts
The TW_IOCTL_GET_LOCK ioctl uses do_gettimeofday() to check whether a
lock has expired. This can misbehave due to a concurrent settimeofday()
call, as it is based on 'real' time, and it will overflow in y2038 on
32-bit architectures, producing unexpected results when used across the
overflow time.
This changes it to using monotonic time, using ktime_get() to simplify
the code.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Adam Radford <aradford@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions