sctp: Save some room in the sctp_transport by using bitfields
Saves some room in the sctp_transport structure. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
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@ -877,7 +877,33 @@ struct sctp_transport {
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/* Reference counting. */
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atomic_t refcnt;
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int dead;
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int dead:1,
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/* RTO-Pending : A flag used to track if one of the DATA
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* chunks sent to this address is currently being
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* used to compute a RTT. If this flag is 0,
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* the next DATA chunk sent to this destination
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* should be used to compute a RTT and this flag
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* should be set. Every time the RTT
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* calculation completes (i.e. the DATA chunk
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* is SACK'd) clear this flag.
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*/
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rto_pending:1,
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/*
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* hb_sent : a flag that signals that we have a pending
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* heartbeat.
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*/
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hb_sent:1,
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/* Flag to track the current fast recovery state */
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fast_recovery:1,
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/* Is the Path MTU update pending on this tranport */
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pmtu_pending:1,
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/* Is this structure kfree()able? */
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malloced:1;
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/* This is the peer's IP address and port. */
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union sctp_addr ipaddr;
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@ -907,22 +933,6 @@ struct sctp_transport {
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/* SRTT : The current smoothed round trip time. */
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__u32 srtt;
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/* RTO-Pending : A flag used to track if one of the DATA
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* chunks sent to this address is currently being
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* used to compute a RTT. If this flag is 0,
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* the next DATA chunk sent to this destination
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* should be used to compute a RTT and this flag
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* should be set. Every time the RTT
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* calculation completes (i.e. the DATA chunk
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* is SACK'd) clear this flag.
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* hb_sent : a flag that signals that we have a pending heartbeat.
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*/
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__u8 rto_pending;
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__u8 hb_sent;
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/* Flag to track the current fast recovery state */
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__u8 fast_recovery;
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/*
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* These are the congestion stats.
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*/
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@ -975,9 +985,6 @@ struct sctp_transport {
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*/
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__u16 pathmaxrxt;
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/* is the Path MTU update pending on this tranport */
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__u8 pmtu_pending;
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/* PMTU : The current known path MTU. */
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__u32 pathmtu;
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@ -1021,8 +1028,6 @@ struct sctp_transport {
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/* This is the list of transports that have chunks to send. */
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struct list_head send_ready;
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int malloced; /* Is this structure kfree()able? */
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/* State information saved for SFR_CACC algorithm. The key
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* idea in SFR_CACC is to maintain state at the sender on a
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* per-destination basis when a changeover happens.
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