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Commit 91a09e0c authored by David S. Miller's avatar David S. Miller
Browse files

Merge branch 'sctp-improve-asoc-streams-management' 



Xin Long says:

====================
sctp: improve asoc streams management

This patchset changes to define asoc->stream as an object, and also
improve some codes to make it more clearly.
====================

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 6e7da286 ff356414

include/net/sctp/structs.h

+4 −3
Original line number Diff line number Diff line
@@ -377,10 +377,11 @@ typedef struct sctp_sender_hb_info { 
	__u64 hb_nonce;

} sctp_sender_hb_info_t;



int sctp_stream_new(struct sctp_association *asoc, gfp_t gfp);

int sctp_stream_init(struct sctp_association *asoc, gfp_t gfp);

int sctp_stream_init(struct sctp_stream *stream, __u16 outcnt, __u16 incnt,

		     gfp_t gfp);

void sctp_stream_free(struct sctp_stream *stream);

void sctp_stream_clear(struct sctp_stream *stream);

void sctp_stream_update(struct sctp_stream *stream, struct sctp_stream *new);



/* What is the current SSN number for this stream? */

#define sctp_ssn_peek(stream, type, sid) \
@@ -1750,7 +1751,7 @@ struct sctp_association { 
	__u32 default_rcv_context;



	/* Stream arrays */

	struct sctp_stream *stream;

	struct sctp_stream stream;



	/* All outbound chunks go through this structure.  */

	struct sctp_outq outqueue;

net/sctp/associola.c

+7 −9
Original line number Diff line number Diff line
@@ -246,7 +246,8 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a 
	if (!sctp_ulpq_init(&asoc->ulpq, asoc))

		goto fail_init;



	if (sctp_stream_new(asoc, gfp))

	if (sctp_stream_init(&asoc->stream, asoc->c.sinit_num_ostreams,

			     0, gfp))

		goto fail_init;



	/* Assume that peer would support both address types unless we are
@@ -291,7 +292,7 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a 
	return asoc;



stream_free:

	sctp_stream_free(asoc->stream);

	sctp_stream_free(&asoc->stream);

fail_init:

	sock_put(asoc->base.sk);

	sctp_endpoint_put(asoc->ep);
@@ -365,7 +366,7 @@ void sctp_association_free(struct sctp_association *asoc) 
	sctp_tsnmap_free(&asoc->peer.tsn_map);



	/* Free stream information. */

	sctp_stream_free(asoc->stream);

	sctp_stream_free(&asoc->stream);



	if (asoc->strreset_chunk)

		sctp_chunk_free(asoc->strreset_chunk);
@@ -1151,7 +1152,7 @@ void sctp_assoc_update(struct sctp_association *asoc, 
		/* Reinitialize SSN for both local streams

		 * and peer's streams.

		 */

		sctp_stream_clear(asoc->stream);

		sctp_stream_clear(&asoc->stream);



		/* Flush the ULP reassembly and ordered queue.

		 * Any data there will now be stale and will
@@ -1177,11 +1178,8 @@ void sctp_assoc_update(struct sctp_association *asoc, 
		asoc->ctsn_ack_point = asoc->next_tsn - 1;

		asoc->adv_peer_ack_point = asoc->ctsn_ack_point;



		if (sctp_state(asoc, COOKIE_WAIT)) {

			sctp_stream_free(asoc->stream);

			asoc->stream = new->stream;

			new->stream = NULL;

		}

		if (sctp_state(asoc, COOKIE_WAIT))

			sctp_stream_update(&asoc->stream, &new->stream);



		if (!asoc->assoc_id) {

			/* get a new association id since we don't have one

net/sctp/chunk.c

+2 −2
Original line number Diff line number Diff line
@@ -307,7 +307,7 @@ int sctp_chunk_abandoned(struct sctp_chunk *chunk) 
	if (SCTP_PR_TTL_ENABLED(chunk->sinfo.sinfo_flags) &&

	    time_after(jiffies, chunk->msg->expires_at)) {

		struct sctp_stream_out *streamout =

			&chunk->asoc->stream->out[chunk->sinfo.sinfo_stream];

			&chunk->asoc->stream.out[chunk->sinfo.sinfo_stream];



		if (chunk->sent_count) {

			chunk->asoc->abandoned_sent[SCTP_PR_INDEX(TTL)]++;
@@ -320,7 +320,7 @@ int sctp_chunk_abandoned(struct sctp_chunk *chunk) 
	} else if (SCTP_PR_RTX_ENABLED(chunk->sinfo.sinfo_flags) &&

		   chunk->sent_count > chunk->sinfo.sinfo_timetolive) {

		struct sctp_stream_out *streamout =

			&chunk->asoc->stream->out[chunk->sinfo.sinfo_stream];

			&chunk->asoc->stream.out[chunk->sinfo.sinfo_stream];



		chunk->asoc->abandoned_sent[SCTP_PR_INDEX(RTX)]++;

		streamout->abandoned_sent[SCTP_PR_INDEX(RTX)]++;

net/sctp/outqueue.c

+5 −5
Original line number Diff line number Diff line
@@ -363,7 +363,7 @@ static int sctp_prsctp_prune_sent(struct sctp_association *asoc, 
		sctp_insert_list(&asoc->outqueue.abandoned,

				 &chk->transmitted_list);



		streamout = &asoc->stream->out[chk->sinfo.sinfo_stream];

		streamout = &asoc->stream.out[chk->sinfo.sinfo_stream];

		asoc->sent_cnt_removable--;

		asoc->abandoned_sent[SCTP_PR_INDEX(PRIO)]++;

		streamout->abandoned_sent[SCTP_PR_INDEX(PRIO)]++;
@@ -400,9 +400,9 @@ static int sctp_prsctp_prune_unsent(struct sctp_association *asoc, 
		q->out_qlen -= chk->skb->len;

		asoc->sent_cnt_removable--;

		asoc->abandoned_unsent[SCTP_PR_INDEX(PRIO)]++;

		if (chk->sinfo.sinfo_stream < asoc->stream->outcnt) {

		if (chk->sinfo.sinfo_stream < asoc->stream.outcnt) {

			struct sctp_stream_out *streamout =

				&asoc->stream->out[chk->sinfo.sinfo_stream];

				&asoc->stream.out[chk->sinfo.sinfo_stream];



			streamout->abandoned_unsent[SCTP_PR_INDEX(PRIO)]++;

		}
@@ -1036,7 +1036,7 @@ static void sctp_outq_flush(struct sctp_outq *q, int rtx_timeout, gfp_t gfp) 
			/* RFC 2960 6.5 Every DATA chunk MUST carry a valid

			 * stream identifier.

			 */

			if (chunk->sinfo.sinfo_stream >= asoc->stream->outcnt) {

			if (chunk->sinfo.sinfo_stream >= asoc->stream.outcnt) {



				/* Mark as failed send. */

				sctp_chunk_fail(chunk, SCTP_ERROR_INV_STRM);
@@ -1054,7 +1054,7 @@ static void sctp_outq_flush(struct sctp_outq *q, int rtx_timeout, gfp_t gfp) 
				continue;

			}



			if (asoc->stream->out[sid].state == SCTP_STREAM_CLOSED) {

			if (asoc->stream.out[sid].state == SCTP_STREAM_CLOSED) {

				sctp_outq_head_data(q, chunk);

				goto sctp_flush_out;

			}

net/sctp/proc.c

+2 −2
Original line number Diff line number Diff line
@@ -361,8 +361,8 @@ static int sctp_assocs_seq_show(struct seq_file *seq, void *v) 
	sctp_seq_dump_remote_addrs(seq, assoc);

	seq_printf(seq, "\t%8lu %5d %5d %4d %4d %4d %8d "

		   "%8d %8d %8d %8d",

		assoc->hbinterval, assoc->stream->incnt,

		assoc->stream->outcnt, assoc->max_retrans,

		assoc->hbinterval, assoc->stream.incnt,

		assoc->stream.outcnt, assoc->max_retrans,

		assoc->init_retries, assoc->shutdown_retries,

		assoc->rtx_data_chunks,

		atomic_read(&sk->sk_wmem_alloc),