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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 /drivers/scsi/3w-9xxx.h | |
| parent | bc8f91665b3f2fd94b80217e433dc90383e75ae4 (diff) | |
| download | linux-rpi-07ffd4ce80b9a452d8c8eb154924e19499302d00.tar.gz linux-rpi-07ffd4ce80b9a452d8c8eb154924e19499302d00.tar.bz2 linux-rpi-07ffd4ce80b9a452d8c8eb154924e19499302d00.zip | |
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 'drivers/scsi/3w-9xxx.h')
| -rw-r--r-- | drivers/scsi/3w-9xxx.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/3w-9xxx.h b/drivers/scsi/3w-9xxx.h index b6c208cc474f..d88cd3499bd5 100644 --- a/drivers/scsi/3w-9xxx.h +++ b/drivers/scsi/3w-9xxx.h @@ -666,7 +666,7 @@ typedef struct TAG_TW_Device_Extension { unsigned char event_queue_wrapped; unsigned int error_sequence_id; int ioctl_sem_lock; - u32 ioctl_msec; + ktime_t ioctl_time; int chrdev_request_id; wait_queue_head_t ioctl_wqueue; struct mutex ioctl_lock; |