This is in preparation for the change that transitions filesystem timestamps to use 64 bit time and hence make them y2038 safe.
CURRENT_TIME macro will be deleted before merging the aforementioned patch.
Filesystems will use current_time() instead of CURRENT_TIME. Use ktime_get_real_seconds() here as this is not filesystem time. Only the seconds portion of the timestamp is necessary for timezone calculation using server time.
Assume that the difference between server and client times lie in the range INT_MIN..INT_MAX. This is valid because this is the difference between current times between server and client, and the largest timezone difference is in the range of one day.
All cifs timestamps currently use timespec internally. This timestamp can also be transitioned into using timespec64 when all other timestamps for cifs is transitioned to use timespec64.
Signed-off-by: Deepa Dinamani deepa.kernel@gmail.com Reviewed-by: Arnd Bergmann arnd@arndb.de Cc: Steve French sfrench@samba.org --- fs/cifs/cifssmb.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index d47197e..6c666a3 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -478,14 +478,14 @@ decode_lanman_negprot_rsp(struct TCP_Server_Info *server, NEGOTIATE_RSP *pSMBr) * this requirement. */ int val, seconds, remain, result; - struct timespec ts, utc; - utc = CURRENT_TIME; + struct timespec ts; + unsigned long utc = ktime_get_real_seconds(); ts = cnvrtDosUnixTm(rsp->SrvTime.Date, rsp->SrvTime.Time, 0); cifs_dbg(FYI, "SrvTime %d sec since 1970 (utc: %d) diff: %d\n", - (int)ts.tv_sec, (int)utc.tv_sec, - (int)(utc.tv_sec - ts.tv_sec)); - val = (int)(utc.tv_sec - ts.tv_sec); + (int)ts.tv_sec, (int)utc, + (int)(utc - ts.tv_sec)); + val = (int)(utc - ts.tv_sec); seconds = abs(val); result = (seconds / MIN_TZ_ADJ) * MIN_TZ_ADJ; remain = seconds % MIN_TZ_ADJ;