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authorGerrit Renker <gerrit@erg.abdn.ac.uk>2008-09-04 07:30:19 +0200
committerGerrit Renker <gerrit@erg.abdn.ac.uk>2008-09-04 07:45:41 +0200
commit49ffc29a0223adbe0ea7005eea3ab2a03abbeb06 (patch)
treed7bf19858c85b5dbb6bded3f543fbf8a6a355a2e /net/dccp/input.c
parent2b81143aa3505e2460b24b357996c2f21840ea58 (diff)
downloadlinux-49ffc29a0223adbe0ea7005eea3ab2a03abbeb06.tar.bz2
dccp: Clamping RTT values
This extracts the clamping part of dccp_sample_rtt() and makes it available to other parts of the code (as e.g. used in the next patch). Note: The function dccp_sample_rtt() now reduces to subtracting the elapsed time. This could be eliminated but would require shorter prefixes and thus is not done by this patch - maybe an idea for later. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Diffstat (limited to 'net/dccp/input.c')
-rw-r--r--net/dccp/input.c11
1 files changed, 1 insertions, 10 deletions
diff --git a/net/dccp/input.c b/net/dccp/input.c
index b1e38bf94456..df0e6714aa11 100644
--- a/net/dccp/input.c
+++ b/net/dccp/input.c
@@ -707,16 +707,7 @@ u32 dccp_sample_rtt(struct sock *sk, long delta)
/* dccpor_elapsed_time is either zeroed out or set and > 0 */
delta -= dccp_sk(sk)->dccps_options_received.dccpor_elapsed_time * 10;
- if (unlikely(delta <= 0)) {
- DCCP_WARN("unusable RTT sample %ld, using min\n", delta);
- return DCCP_SANE_RTT_MIN;
- }
- if (unlikely(delta > DCCP_SANE_RTT_MAX)) {
- DCCP_WARN("RTT sample %ld too large, using max\n", delta);
- return DCCP_SANE_RTT_MAX;
- }
-
- return delta;
+ return dccp_sane_rtt(delta);
}
EXPORT_SYMBOL_GPL(dccp_sample_rtt);