Change in osmo-bsc[master]: chan_alloc: Don't include CBCH channels in load computation

[Harald Welte]

Harald Welte has uploaded this change for review. ( https://gerrit.osmocom.org/14152


Change subject: chan_alloc: Don't include CBCH channels in load computation
......................................................................

chan_alloc: Don't include CBCH channels in load computation

When displaying the channel (lchan) load, we are interested in the
dedicated channels as available for communication with mobile
stations.  If CBCH is enabled, it "steals" one of the SDCCH slots,
so we have to exclude this channel from the count of available
dedicated channels.

Before this patch, A CBCH would show up as "in use" dedicated channel
(so both the total and the in_use count were incremented).

After this patch, neither "total" nor "use" are affected; The CBCH
slot is completely excluded from load statistics.

Change-Id: I606962e4977f122ff05a2d4e756c04c7f38bdaa0
---
M src/osmo-bsc/chan_alloc.c
1 file changed, 4 insertions(+), 0 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/52/14152/1

diff --git a/src/osmo-bsc/chan_alloc.c b/src/osmo-bsc/chan_alloc.c
index 9c43414..7f0aa31 100644
--- a/src/osmo-bsc/chan_alloc.c
+++ b/src/osmo-bsc/chan_alloc.c
@@ -59,6 +59,10 @@
 				continue;
 
 			ts_for_each_lchan(lchan, ts) {
+				/* don't even count CBCH slots in total */
+				if (lchan->type == GSM_LCHAN_CBCH)
+					continue;
+
 				pl->total++;
 
 				switch (lchan->fi->state) {

-- 
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Gerrit-Project: osmo-bsc
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I606962e4977f122ff05a2d4e756c04c7f38bdaa0
Gerrit-Change-Number: 14152
Gerrit-PatchSet: 1
Gerrit-Owner: Harald Welte <laforge at gnumonks.org>
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