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| author | Arnd Bergmann <arnd@arndb.de> | 2018-06-18 17:28:23 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-06-26 18:00:27 +0200 |
| commit | c4d6204dc1742581c0450d2ff6a058f61ea4f4ce (patch) | |
| tree | f8bc84056c7d3c0530a0d899a434ed4a161ff064 /drivers/scsi/lpfc/lpfc_sli.h | |
| parent | scsi: scsi_transport_fc: use 64-bit timestamps consistently (diff) | |
| download | linux-c4d6204dc1742581c0450d2ff6a058f61ea4f4ce.tar.xz linux-c4d6204dc1742581c0450d2ff6a058f61ea4f4ce.zip | |
scsi: lpfc: use monotonic timestamps for statistics
The get_seconds() function suffers from a possible overflow in 2038 or
2106, as well as jitter due to settimeofday or leap second updates, and is
deprecated.
As we are interested in elapsed time only, using ktime_get_seconds() to
read the CLOCK_MONOTONIC timebase is ideal here. This also lets us remove
the hack that tries to deal with get_seconds() going slightly backwards,
which cannot happen with montonic timestamps.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_sli.h')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_sli.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.h b/drivers/scsi/lpfc/lpfc_sli.h index 431754195505..80b191d73190 100644 --- a/drivers/scsi/lpfc/lpfc_sli.h +++ b/drivers/scsi/lpfc/lpfc_sli.h @@ -339,7 +339,7 @@ struct lpfc_sli { struct lpfc_iocbq ** iocbq_lookup; /* array to lookup IOCB by IOTAG */ size_t iocbq_lookup_len; /* current lengs of the array */ uint16_t last_iotag; /* last allocated IOTAG */ - unsigned long stats_start; /* in seconds */ + time64_t stats_start; /* in seconds */ struct lpfc_lnk_stat lnk_stat_offsets; }; |