lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[CCID3]: Reorganise timeval handling

Browse Source 
Introducing functions to add to or subtract from a timeval variable
and renaming now_delta to timeval_new_delta that calls do_gettimeofday
and then timeval_delta, that should be used when there are several
deltas made relative to the current time or setting variables to it,
so as to avoid calling do_gettimeofday excessively.

I'm leaving these "timeval_" prefixed funcions internal to DCCP for a
while till we're sure there are no subtle bugs in it.

It also is more correct as it checks if the number of usecs added to
or subtracted from a tv_usec field is more than 2 seconds.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnaldo Carvalho de Melo
2005-08-27 18:18:18 -03:00
committed by David S. Miller
parent 1f2333aea3
commit b6ee3d4ada
3 changed files with 98 additions and 78 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
net/dccp/options.c
View File

@@ -359,7 +359,7 @@ static void dccp_insert_option_ack_vector(struct sock *sk, struct sk_buff *skb)
#endif
struct dccp_ackpkts *ap = dp->dccps_hc_rx_ackpkts;
int len = ap->dccpap_buf_vector_len + 2;
const u32 elapsed_time = now_delta(ap->dccpap_time) / 10;
const u32 elapsed_time = timeval_now_delta(&ap->dccpap_time) / 10;
unsigned char *to, *from;
if (elapsed_time != 0)
@@ -451,7 +451,8 @@ static void dccp_insert_option_timestamp_echo(struct sock *sk,
"CLIENT TX opt: " : "server TX opt: ";
#endif
u32 tstamp_echo;
const u32 elapsed_time = now_delta(dp->dccps_timestamp_time) / 10;
const u32 elapsed_time =
timeval_now_delta(&dp->dccps_timestamp_time) / 10;
const int elapsed_time_len = dccp_elapsed_time_len(elapsed_time);
const int len = 6 + elapsed_time_len;
unsigned char *to;