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| author |   David Howells <dhowells@redhat.com> | 2016-09-22 00:29:31 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2016-09-22 08:21:24 +0100 |
| commit | 50235c4b5a2fb9a9690f02cd1dea6ca047d7f79e (patch) | |
| tree | 3dc5a178820b16d5eaef0484fe7751cb4f71375e /net/rxrpc/sysctl.c | |
| parent | rxrpc: Add ktime_sub_ms() (diff) | |
| download | linux-dev-50235c4b5a2fb9a9690f02cd1dea6ca047d7f79e.tar.xz linux-dev-50235c4b5a2fb9a9690f02cd1dea6ca047d7f79e.zip | |
rxrpc: Obtain RTT data by requesting ACKs on DATA packets
In addition to sending a PING ACK to gain RTT data, we can set the
RXRPC_REQUEST_ACK flag on a DATA packet and get a REQUESTED-ACK ACK. The
ACK packet contains the serial number of the packet it is in response to,
so we can look through the Tx buffer for a matching DATA packet.
This requires that the data packets be stamped with the time of
transmission as a ktime rather than having the resend_at time in jiffies.
This further requires the resend code to do the resend determination in
ktimes and convert to jiffies to set the timer.
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'net/rxrpc/sysctl.c')
| -rw-r--r-- | net/rxrpc/sysctl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/rxrpc/sysctl.c b/net/rxrpc/sysctl.c index a03c61c672f5..13d1df03ebac 100644 --- a/net/rxrpc/sysctl.c +++ b/net/rxrpc/sysctl.c @@ -59,7 +59,7 @@ static struct ctl_table rxrpc_sysctl_table[] = { .data = &rxrpc_resend_timeout, .maxlen = sizeof(unsigned int), .mode = 0644, - .proc_handler = proc_dointvec_ms_jiffies, + .proc_handler = proc_dointvec, .extra1 = (void *)&one, }, { |