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sctp: define the member stream as an object instead of pointer in asoc

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As Marcelo's suggestion, stream is a fixed size member of asoc and would
not grow with more streams. To avoid an allocation for it, this patch is
to define it as an object instead of pointer and update the places using
it, also create sctp_stream_update() called in sctp_assoc_update() to
migrate the stream info from one stream to another.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xin Long
2017-05-31 16:36:31 +08:00
committed by David S. Miller
parent 6e7da286e3
commit cee360ab4d
10 changed files with 65 additions and 69 deletions
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4
net/sctp/chunk.c
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@@ -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)]++;