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[SCTP]: Fix receive buffer accounting.

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When doing receiver buffer accounting, we always used skb->truesize.
This is problematic when processing bundled DATA chunks because for
every DATA chunk that could be small part of one large skb, we would
charge the size of the entire skb.  The new approach is to store the
size of the DATA chunk we are accounting for in the sctp_ulpevent
structure and use that stored value for accounting.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vlad Yasevich
2006-10-09 21:34:04 -07:00
committed by David S. Miller
parent 6e8c751e07
commit 331c4ee7fa
5 changed files with 49 additions and 15 deletions
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include/net/sctp/ulpevent.h
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@ -63,6 +63,7 @@ struct sctp_ulpevent {
__u32 cumtsn;
int msg_flags;
int iif;
unsigned int rmem_len;
};
/* Retrieve the skb this event sits inside of. */