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[PATCH 08/21] fs: cifs: Replace CURRENT_TIME with ktime_get_real_ts()

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  [PATCH 08/21] fs: cifs: Replace CURRENT_TIME with ktime_get_real_ts() Deepa Dinamani <deepa.kernel@gmail.com> - 2016-06-09 07:10 +0200

#1418069 — [PATCH 08/21] fs: cifs: Replace CURRENT_TIME with ktime_get_real_ts()

This is in preparation for the patch that transitions
vfs timestamps to use 64 bit time and hence make them
y2038 safe.

CURRENT_TIME macro will be deleted before merging the
aforementioned patch.

Filesystem times will use current_fs_time() instead of
CURRENT_TIME.
Use ktime_get_real_ts() here as this is not filesystem time.
ktime_get_real_ts() returns the timestamp in ns which can
be used to calculate network time for NTLMv2 authentication
timestamp.

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>
Cc: Steve French <sfrench@samba.org>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
---
 fs/cifs/cifsencrypt.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 6aeb8d4..b86ce67 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -471,6 +471,7 @@ find_timestamp(struct cifs_ses *ses)
 	unsigned char *blobptr;
 	unsigned char *blobend;
 	struct ntlmssp2_name *attrptr;
+	struct timespec ts;
 
 	if (!ses->auth_key.len || !ses->auth_key.response)
 		return 0;
@@ -495,7 +496,8 @@ find_timestamp(struct cifs_ses *ses)
 		blobptr += attrsize; /* advance attr value */
 	}
 
-	return cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
+	ktime_get_real_ts(&ts);
+	return cpu_to_le64(cifs_UnixTimeToNT(ts));
 }
 
 static int calc_ntlmv2_hash(struct cifs_ses *ses, char *ntlmv2_hash,
-- 
1.9.1

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