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net/sctp: Make wrappers for accessing in/out streams

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This patch introduces wrappers for accessing in/out streams indirectly.
This will enable to replace physically contiguous memory arrays
of streams with flexible arrays (or maybe any other appropriate
mechanism) which do memory allocation on a per-page basis.

Signed-off-by: Oleg Babin <obabin@virtuozzo.com>
Signed-off-by: Konstantin Khorenko <khorenko@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Konstantin Khorenko 2018-08-10 20:11:42 +03:00 • committed by David S. Miller
parent b70f1f3af4
commit 05364ca03c
9 changed files with 103 additions and 81 deletions
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4
net/sctp/socket.c
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@ -1911,7 +1911,7 @@ static int sctp_sendmsg_to_asoc(struct sctp_association *asoc,
goto err;
}
if (unlikely(!asoc->stream.out[sinfo->sinfo_stream].ext)) {
if (unlikely(!SCTP_SO(&asoc->stream, sinfo->sinfo_stream)->ext)) {
err = sctp_stream_init_ext(&asoc->stream, sinfo->sinfo_stream);
if (err)
goto err;
@ -7154,7 +7154,7 @@ static int sctp_getsockopt_pr_streamstatus(struct sock *sk, int len,
if (!asoc || params.sprstat_sid >= asoc->stream.outcnt)
goto out;
streamoute = asoc->stream.out[params.sprstat_sid].ext;
streamoute = SCTP_SO(&asoc->stream, params.sprstat_sid)->ext;
if (!streamoute) {
/* Not allocated yet, means all stats are 0 */
params.sprstat_abandoned_unsent = 0;