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sctp: rwnd_press should be cumulative

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rwnd_press tracks the pressure on the recieve window.  Every
timer the receive buffer overlows, we truncate the receive
window and then grow it back.  However, if we don't track
the cumulative presser, it's possible to reach a situation
when receive buffer is empty, but rwnd stays truncated.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
This commit is contained in:
Vlad Yasevich 2010-04-30 22:41:10 -04:00
parent cf9b4812e1
commit 6588337189
1 changed files with 1 additions and 1 deletions
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2
net/sctp/associola.c
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@ -1482,7 +1482,7 @@ void sctp_assoc_rwnd_decrease(struct sctp_association *asoc, unsigned len)
if (asoc->rwnd >= len) {
asoc->rwnd -= len;
if (over) {
asoc->rwnd_press = asoc->rwnd;
asoc->rwnd_press += asoc->rwnd;
asoc->rwnd = 0;
}
} else {