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Message-Id: <20180810171143.21592-2-khorenko@virtuozzo.com>
Date: Fri, 10 Aug 2018 20:11:42 +0300
From: Konstantin Khorenko <khorenko@...tuozzo.com>
To: Marcelo Ricardo Leitner <marcelo.leitner@...il.com>
Cc: oleg.babin@...il.com, netdev@...r.kernel.org,
linux-sctp@...r.kernel.org,
"David S . Miller" <davem@...emloft.net>,
Vlad Yasevich <vyasevich@...il.com>,
Neil Horman <nhorman@...driver.com>,
Xin Long <lucien.xin@...il.com>,
Andrey Ryabinin <aryabinin@...tuozzo.com>,
Konstantin Khorenko <khorenko@...tuozzo.com>
Subject: [PATCH v3 1/2] net/sctp: Make wrappers for accessing in/out streams
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@...tuozzo.com>
Signed-off-by: Konstantin Khorenko <khorenko@...tuozzo.com>
---
v2 changes:
sctp_stream_in() users are updated to provide stream as an argument,
sctp_stream_{in,out}_ptr() are now just sctp_stream_{in,out}().
v3 changes:
Move type chages struct sctp_stream_out -> flex_array to next patch.
Make sctp_stream_{in,out}() static incline and move them to a header.
---
include/net/sctp/structs.h | 35 +++++++++++++++++-------
net/sctp/chunk.c | 6 ++--
net/sctp/outqueue.c | 11 ++++----
net/sctp/socket.c | 4 +--
net/sctp/stream.c | 65 +++++++++++++++++++++++---------------------
net/sctp/stream_interleave.c | 20 +++++++-------
net/sctp/stream_sched.c | 13 +++++----
net/sctp/stream_sched_prio.c | 22 +++++++--------
net/sctp/stream_sched_rr.c | 8 +++---
9 files changed, 103 insertions(+), 81 deletions(-)
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index dbe1b911a24d..ce4bf844f573 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -394,37 +394,35 @@ 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) \
- ((stream)->type[sid].ssn)
+ (sctp_stream_##type((stream), (sid))->ssn)
/* Return the next SSN number for this stream. */
#define sctp_ssn_next(stream, type, sid) \
- ((stream)->type[sid].ssn++)
+ (sctp_stream_##type((stream), (sid))->ssn++)
/* Skip over this ssn and all below. */
#define sctp_ssn_skip(stream, type, sid, ssn) \
- ((stream)->type[sid].ssn = ssn + 1)
+ (sctp_stream_##type((stream), (sid))->ssn = ssn + 1)
/* What is the current MID number for this stream? */
#define sctp_mid_peek(stream, type, sid) \
- ((stream)->type[sid].mid)
+ (sctp_stream_##type((stream), (sid))->mid)
/* Return the next MID number for this stream. */
#define sctp_mid_next(stream, type, sid) \
- ((stream)->type[sid].mid++)
+ (sctp_stream_##type((stream), (sid))->mid++)
/* Skip over this mid and all below. */
#define sctp_mid_skip(stream, type, sid, mid) \
- ((stream)->type[sid].mid = mid + 1)
-
-#define sctp_stream_in(asoc, sid) (&(asoc)->stream.in[sid])
+ (sctp_stream_##type((stream), (sid))->mid = mid + 1)
/* What is the current MID_uo number for this stream? */
#define sctp_mid_uo_peek(stream, type, sid) \
- ((stream)->type[sid].mid_uo)
+ (sctp_stream_##type((stream), (sid))->mid_uo)
/* Return the next MID_uo number for this stream. */
#define sctp_mid_uo_next(stream, type, sid) \
- ((stream)->type[sid].mid_uo++)
+ (sctp_stream_##type((stream), (sid))->mid_uo++)
/*
* Pointers to address related SCTP functions.
@@ -1456,6 +1454,23 @@ struct sctp_stream {
struct sctp_stream_interleave *si;
};
+static inline struct sctp_stream_out *sctp_stream_out(
+ const struct sctp_stream *stream,
+ __u16 sid)
+{
+ return ((struct sctp_stream_out *)(stream->out)) + sid;
+}
+
+static inline struct sctp_stream_in *sctp_stream_in(
+ const struct sctp_stream *stream,
+ __u16 sid)
+{
+ return ((struct sctp_stream_in *)(stream->in)) + sid;
+}
+
+#define SCTP_SO(s, i) sctp_stream_out((s), (i))
+#define SCTP_SI(s, i) sctp_stream_in((s), (i))
+
#define SCTP_STREAM_CLOSED 0x00
#define SCTP_STREAM_OPEN 0x01
diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c
index bfb9f812e2ef..ce8087846f05 100644
--- a/net/sctp/chunk.c
+++ b/net/sctp/chunk.c
@@ -325,7 +325,8 @@ 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];
+ SCTP_SO(&chunk->asoc->stream,
+ chunk->sinfo.sinfo_stream);
if (chunk->sent_count) {
chunk->asoc->abandoned_sent[SCTP_PR_INDEX(TTL)]++;
@@ -339,7 +340,8 @@ 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];
+ SCTP_SO(&chunk->asoc->stream,
+ chunk->sinfo.sinfo_stream);
chunk->asoc->abandoned_sent[SCTP_PR_INDEX(RTX)]++;
streamout->ext->abandoned_sent[SCTP_PR_INDEX(RTX)]++;
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index d68aa33485a9..d74d00b29942 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -80,7 +80,7 @@ static inline void sctp_outq_head_data(struct sctp_outq *q,
q->out_qlen += ch->skb->len;
stream = sctp_chunk_stream_no(ch);
- oute = q->asoc->stream.out[stream].ext;
+ oute = SCTP_SO(&q->asoc->stream, stream)->ext;
list_add(&ch->stream_list, &oute->outq);
}
@@ -101,7 +101,7 @@ static inline void sctp_outq_tail_data(struct sctp_outq *q,
q->out_qlen += ch->skb->len;
stream = sctp_chunk_stream_no(ch);
- oute = q->asoc->stream.out[stream].ext;
+ oute = SCTP_SO(&q->asoc->stream, stream)->ext;
list_add_tail(&ch->stream_list, &oute->outq);
}
@@ -372,7 +372,7 @@ 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 = SCTP_SO(&asoc->stream, chk->sinfo.sinfo_stream);
asoc->sent_cnt_removable--;
asoc->abandoned_sent[SCTP_PR_INDEX(PRIO)]++;
streamout->ext->abandoned_sent[SCTP_PR_INDEX(PRIO)]++;
@@ -416,7 +416,7 @@ static int sctp_prsctp_prune_unsent(struct sctp_association *asoc,
asoc->abandoned_unsent[SCTP_PR_INDEX(PRIO)]++;
if (chk->sinfo.sinfo_stream < asoc->stream.outcnt) {
struct sctp_stream_out *streamout =
- &asoc->stream.out[chk->sinfo.sinfo_stream];
+ SCTP_SO(&asoc->stream, chk->sinfo.sinfo_stream);
streamout->ext->abandoned_unsent[SCTP_PR_INDEX(PRIO)]++;
}
@@ -1082,6 +1082,7 @@ static void sctp_outq_flush_data(struct sctp_flush_ctx *ctx,
/* Finally, transmit new packets. */
while ((chunk = sctp_outq_dequeue_data(ctx->q)) != NULL) {
__u32 sid = ntohs(chunk->subh.data_hdr->stream);
+ __u8 stream_state = SCTP_SO(&ctx->asoc->stream, sid)->state;
/* Has this chunk expired? */
if (sctp_chunk_abandoned(chunk)) {
@@ -1091,7 +1092,7 @@ static void sctp_outq_flush_data(struct sctp_flush_ctx *ctx,
continue;
}
- if (ctx->asoc->stream.out[sid].state == SCTP_STREAM_CLOSED) {
+ if (stream_state == SCTP_STREAM_CLOSED) {
sctp_outq_head_data(ctx->q, chunk);
break;
}
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index ce620e878538..4582ab25bc4e 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1905,7 +1905,7 @@ 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;
@@ -6958,7 +6958,7 @@ 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;
diff --git a/net/sctp/stream.c b/net/sctp/stream.c
index f1f1d1b232ba..7ca6fe4e7882 100644
--- a/net/sctp/stream.c
+++ b/net/sctp/stream.c
@@ -162,7 +162,7 @@ int sctp_stream_init(struct sctp_stream *stream, __u16 outcnt, __u16 incnt,
stream->outcnt = outcnt;
for (i = 0; i < stream->outcnt; i++)
- stream->out[i].state = SCTP_STREAM_OPEN;
+ SCTP_SO(stream, i)->state = SCTP_STREAM_OPEN;
sched->init(stream);
@@ -193,7 +193,7 @@ int sctp_stream_init_ext(struct sctp_stream *stream, __u16 sid)
soute = kzalloc(sizeof(*soute), GFP_KERNEL);
if (!soute)
return -ENOMEM;
- stream->out[sid].ext = soute;
+ SCTP_SO(stream, sid)->ext = soute;
return sctp_sched_init_sid(stream, sid, GFP_KERNEL);
}
@@ -205,7 +205,7 @@ void sctp_stream_free(struct sctp_stream *stream)
sched->free(stream);
for (i = 0; i < stream->outcnt; i++)
- kfree(stream->out[i].ext);
+ kfree(SCTP_SO(stream, i)->ext);
kfree(stream->out);
kfree(stream->in);
}
@@ -215,12 +215,12 @@ void sctp_stream_clear(struct sctp_stream *stream)
int i;
for (i = 0; i < stream->outcnt; i++) {
- stream->out[i].mid = 0;
- stream->out[i].mid_uo = 0;
+ SCTP_SO(stream, i)->mid = 0;
+ SCTP_SO(stream, i)->mid_uo = 0;
}
for (i = 0; i < stream->incnt; i++)
- stream->in[i].mid = 0;
+ SCTP_SI(stream, i)->mid = 0;
}
void sctp_stream_update(struct sctp_stream *stream, struct sctp_stream *new)
@@ -273,8 +273,8 @@ static bool sctp_stream_outq_is_empty(struct sctp_stream *stream,
for (i = 0; i < str_nums; i++) {
__u16 sid = ntohs(str_list[i]);
- if (stream->out[sid].ext &&
- !list_empty(&stream->out[sid].ext->outq))
+ if (SCTP_SO(stream, sid)->ext &&
+ !list_empty(&SCTP_SO(stream, sid)->ext->outq))
return false;
}
@@ -361,11 +361,11 @@ int sctp_send_reset_streams(struct sctp_association *asoc,
if (out) {
if (str_nums)
for (i = 0; i < str_nums; i++)
- stream->out[str_list[i]].state =
+ SCTP_SO(stream, str_list[i])->state =
SCTP_STREAM_CLOSED;
else
for (i = 0; i < stream->outcnt; i++)
- stream->out[i].state = SCTP_STREAM_CLOSED;
+ SCTP_SO(stream, i)->state = SCTP_STREAM_CLOSED;
}
asoc->strreset_chunk = chunk;
@@ -380,11 +380,11 @@ int sctp_send_reset_streams(struct sctp_association *asoc,
if (str_nums)
for (i = 0; i < str_nums; i++)
- stream->out[str_list[i]].state =
+ SCTP_SO(stream, str_list[i])->state =
SCTP_STREAM_OPEN;
else
for (i = 0; i < stream->outcnt; i++)
- stream->out[i].state = SCTP_STREAM_OPEN;
+ SCTP_SO(stream, i)->state = SCTP_STREAM_OPEN;
goto out;
}
@@ -418,7 +418,7 @@ int sctp_send_reset_assoc(struct sctp_association *asoc)
/* Block further xmit of data until this request is completed */
for (i = 0; i < stream->outcnt; i++)
- stream->out[i].state = SCTP_STREAM_CLOSED;
+ SCTP_SO(stream, i)->state = SCTP_STREAM_CLOSED;
asoc->strreset_chunk = chunk;
sctp_chunk_hold(asoc->strreset_chunk);
@@ -429,7 +429,7 @@ int sctp_send_reset_assoc(struct sctp_association *asoc)
asoc->strreset_chunk = NULL;
for (i = 0; i < stream->outcnt; i++)
- stream->out[i].state = SCTP_STREAM_OPEN;
+ SCTP_SO(stream, i)->state = SCTP_STREAM_OPEN;
return retval;
}
@@ -609,10 +609,10 @@ struct sctp_chunk *sctp_process_strreset_outreq(
}
for (i = 0; i < nums; i++)
- stream->in[ntohs(str_p[i])].mid = 0;
+ SCTP_SI(stream, ntohs(str_p[i]))->mid = 0;
} else {
for (i = 0; i < stream->incnt; i++)
- stream->in[i].mid = 0;
+ SCTP_SI(stream, i)->mid = 0;
}
result = SCTP_STRRESET_PERFORMED;
@@ -683,11 +683,11 @@ struct sctp_chunk *sctp_process_strreset_inreq(
if (nums)
for (i = 0; i < nums; i++)
- stream->out[ntohs(str_p[i])].state =
+ SCTP_SO(stream, ntohs(str_p[i]))->state =
SCTP_STREAM_CLOSED;
else
for (i = 0; i < stream->outcnt; i++)
- stream->out[i].state = SCTP_STREAM_CLOSED;
+ SCTP_SO(stream, i)->state = SCTP_STREAM_CLOSED;
asoc->strreset_chunk = chunk;
asoc->strreset_outstanding = 1;
@@ -786,11 +786,11 @@ struct sctp_chunk *sctp_process_strreset_tsnreq(
* incoming and outgoing streams.
*/
for (i = 0; i < stream->outcnt; i++) {
- stream->out[i].mid = 0;
- stream->out[i].mid_uo = 0;
+ SCTP_SO(stream, i)->mid = 0;
+ SCTP_SO(stream, i)->mid_uo = 0;
}
for (i = 0; i < stream->incnt; i++)
- stream->in[i].mid = 0;
+ SCTP_SI(stream, i)->mid = 0;
result = SCTP_STRRESET_PERFORMED;
@@ -979,15 +979,18 @@ struct sctp_chunk *sctp_process_strreset_resp(
sizeof(__u16);
if (result == SCTP_STRRESET_PERFORMED) {
+ struct sctp_stream_out *sout;
if (nums) {
for (i = 0; i < nums; i++) {
- stream->out[ntohs(str_p[i])].mid = 0;
- stream->out[ntohs(str_p[i])].mid_uo = 0;
+ sout = SCTP_SO(stream, ntohs(str_p[i]));
+ sout->mid = 0;
+ sout->mid_uo = 0;
}
} else {
for (i = 0; i < stream->outcnt; i++) {
- stream->out[i].mid = 0;
- stream->out[i].mid_uo = 0;
+ sout = SCTP_SO(stream, i);
+ sout->mid = 0;
+ sout->mid_uo = 0;
}
}
@@ -995,7 +998,7 @@ struct sctp_chunk *sctp_process_strreset_resp(
}
for (i = 0; i < stream->outcnt; i++)
- stream->out[i].state = SCTP_STREAM_OPEN;
+ SCTP_SO(stream, i)->state = SCTP_STREAM_OPEN;
*evp = sctp_ulpevent_make_stream_reset_event(asoc, flags,
nums, str_p, GFP_ATOMIC);
@@ -1050,15 +1053,15 @@ struct sctp_chunk *sctp_process_strreset_resp(
asoc->adv_peer_ack_point = asoc->ctsn_ack_point;
for (i = 0; i < stream->outcnt; i++) {
- stream->out[i].mid = 0;
- stream->out[i].mid_uo = 0;
+ SCTP_SO(stream, i)->mid = 0;
+ SCTP_SO(stream, i)->mid_uo = 0;
}
for (i = 0; i < stream->incnt; i++)
- stream->in[i].mid = 0;
+ SCTP_SI(stream, i)->mid = 0;
}
for (i = 0; i < stream->outcnt; i++)
- stream->out[i].state = SCTP_STREAM_OPEN;
+ SCTP_SO(stream, i)->state = SCTP_STREAM_OPEN;
*evp = sctp_ulpevent_make_assoc_reset_event(asoc, flags,
stsn, rtsn, GFP_ATOMIC);
@@ -1072,7 +1075,7 @@ struct sctp_chunk *sctp_process_strreset_resp(
if (result == SCTP_STRRESET_PERFORMED)
for (i = number; i < stream->outcnt; i++)
- stream->out[i].state = SCTP_STREAM_OPEN;
+ SCTP_SO(stream, i)->state = SCTP_STREAM_OPEN;
else
stream->outcnt = number;
diff --git a/net/sctp/stream_interleave.c b/net/sctp/stream_interleave.c
index d3764c181299..0a78cdf86463 100644
--- a/net/sctp/stream_interleave.c
+++ b/net/sctp/stream_interleave.c
@@ -197,7 +197,7 @@ static struct sctp_ulpevent *sctp_intl_retrieve_partial(
__u32 next_fsn = 0;
int is_last = 0;
- sin = sctp_stream_in(ulpq->asoc, event->stream);
+ sin = sctp_stream_in(&ulpq->asoc->stream, event->stream);
skb_queue_walk(&ulpq->reasm, pos) {
struct sctp_ulpevent *cevent = sctp_skb2event(pos);
@@ -278,7 +278,7 @@ static struct sctp_ulpevent *sctp_intl_retrieve_reassembled(
__u32 pd_len = 0;
__u32 mid = 0;
- sin = sctp_stream_in(ulpq->asoc, event->stream);
+ sin = sctp_stream_in(&ulpq->asoc->stream, event->stream);
skb_queue_walk(&ulpq->reasm, pos) {
struct sctp_ulpevent *cevent = sctp_skb2event(pos);
@@ -368,7 +368,7 @@ static struct sctp_ulpevent *sctp_intl_reasm(struct sctp_ulpq *ulpq,
sctp_intl_store_reasm(ulpq, event);
- sin = sctp_stream_in(ulpq->asoc, event->stream);
+ sin = sctp_stream_in(&ulpq->asoc->stream, event->stream);
if (sin->pd_mode && event->mid == sin->mid &&
event->fsn == sin->fsn)
retval = sctp_intl_retrieve_partial(ulpq, event);
@@ -575,7 +575,7 @@ static struct sctp_ulpevent *sctp_intl_retrieve_partial_uo(
__u32 next_fsn = 0;
int is_last = 0;
- sin = sctp_stream_in(ulpq->asoc, event->stream);
+ sin = sctp_stream_in(&ulpq->asoc->stream, event->stream);
skb_queue_walk(&ulpq->reasm_uo, pos) {
struct sctp_ulpevent *cevent = sctp_skb2event(pos);
@@ -659,7 +659,7 @@ static struct sctp_ulpevent *sctp_intl_retrieve_reassembled_uo(
__u32 pd_len = 0;
__u32 mid = 0;
- sin = sctp_stream_in(ulpq->asoc, event->stream);
+ sin = sctp_stream_in(&ulpq->asoc->stream, event->stream);
skb_queue_walk(&ulpq->reasm_uo, pos) {
struct sctp_ulpevent *cevent = sctp_skb2event(pos);
@@ -750,7 +750,7 @@ static struct sctp_ulpevent *sctp_intl_reasm_uo(struct sctp_ulpq *ulpq,
sctp_intl_store_reasm_uo(ulpq, event);
- sin = sctp_stream_in(ulpq->asoc, event->stream);
+ sin = sctp_stream_in(&ulpq->asoc->stream, event->stream);
if (sin->pd_mode_uo && event->mid == sin->mid_uo &&
event->fsn == sin->fsn_uo)
retval = sctp_intl_retrieve_partial_uo(ulpq, event);
@@ -774,7 +774,7 @@ static struct sctp_ulpevent *sctp_intl_retrieve_first_uo(struct sctp_ulpq *ulpq)
skb_queue_walk(&ulpq->reasm_uo, pos) {
struct sctp_ulpevent *cevent = sctp_skb2event(pos);
- csin = sctp_stream_in(ulpq->asoc, cevent->stream);
+ csin = sctp_stream_in(&ulpq->asoc->stream, cevent->stream);
if (csin->pd_mode_uo)
continue;
@@ -875,7 +875,7 @@ static struct sctp_ulpevent *sctp_intl_retrieve_first(struct sctp_ulpq *ulpq)
skb_queue_walk(&ulpq->reasm, pos) {
struct sctp_ulpevent *cevent = sctp_skb2event(pos);
- csin = sctp_stream_in(ulpq->asoc, cevent->stream);
+ csin = sctp_stream_in(&ulpq->asoc->stream, cevent->stream);
if (csin->pd_mode)
continue;
@@ -1053,7 +1053,7 @@ static void sctp_intl_abort_pd(struct sctp_ulpq *ulpq, gfp_t gfp)
__u16 sid;
for (sid = 0; sid < stream->incnt; sid++) {
- struct sctp_stream_in *sin = &stream->in[sid];
+ struct sctp_stream_in *sin = SCTP_SI(stream, sid);
__u32 mid;
if (sin->pd_mode_uo) {
@@ -1247,7 +1247,7 @@ static void sctp_handle_fwdtsn(struct sctp_ulpq *ulpq, struct sctp_chunk *chunk)
static void sctp_intl_skip(struct sctp_ulpq *ulpq, __u16 sid, __u32 mid,
__u8 flags)
{
- struct sctp_stream_in *sin = sctp_stream_in(ulpq->asoc, sid);
+ struct sctp_stream_in *sin = sctp_stream_in(&ulpq->asoc->stream, sid);
struct sctp_stream *stream = &ulpq->asoc->stream;
if (flags & SCTP_FTSN_U_BIT) {
diff --git a/net/sctp/stream_sched.c b/net/sctp/stream_sched.c
index f5fcd425232a..a6c04a94b08f 100644
--- a/net/sctp/stream_sched.c
+++ b/net/sctp/stream_sched.c
@@ -161,7 +161,7 @@ int sctp_sched_set_sched(struct sctp_association *asoc,
/* Give the next scheduler a clean slate. */
for (i = 0; i < asoc->stream.outcnt; i++) {
- void *p = asoc->stream.out[i].ext;
+ void *p = SCTP_SO(&asoc->stream, i)->ext;
if (!p)
continue;
@@ -175,7 +175,7 @@ int sctp_sched_set_sched(struct sctp_association *asoc,
asoc->outqueue.sched = n;
n->init(&asoc->stream);
for (i = 0; i < asoc->stream.outcnt; i++) {
- if (!asoc->stream.out[i].ext)
+ if (!SCTP_SO(&asoc->stream, i)->ext)
continue;
ret = n->init_sid(&asoc->stream, i, GFP_KERNEL);
@@ -217,7 +217,7 @@ int sctp_sched_set_value(struct sctp_association *asoc, __u16 sid,
if (sid >= asoc->stream.outcnt)
return -EINVAL;
- if (!asoc->stream.out[sid].ext) {
+ if (!SCTP_SO(&asoc->stream, sid)->ext) {
int ret;
ret = sctp_stream_init_ext(&asoc->stream, sid);
@@ -234,7 +234,7 @@ int sctp_sched_get_value(struct sctp_association *asoc, __u16 sid,
if (sid >= asoc->stream.outcnt)
return -EINVAL;
- if (!asoc->stream.out[sid].ext)
+ if (!SCTP_SO(&asoc->stream, sid)->ext)
return 0;
return asoc->outqueue.sched->get(&asoc->stream, sid, value);
@@ -252,7 +252,7 @@ void sctp_sched_dequeue_done(struct sctp_outq *q, struct sctp_chunk *ch)
* priority stream comes in.
*/
sid = sctp_chunk_stream_no(ch);
- sout = &q->asoc->stream.out[sid];
+ sout = SCTP_SO(&q->asoc->stream, sid);
q->asoc->stream.out_curr = sout;
return;
}
@@ -272,8 +272,9 @@ void sctp_sched_dequeue_common(struct sctp_outq *q, struct sctp_chunk *ch)
int sctp_sched_init_sid(struct sctp_stream *stream, __u16 sid, gfp_t gfp)
{
struct sctp_sched_ops *sched = sctp_sched_ops_from_stream(stream);
+ struct sctp_stream_out_ext *ext = SCTP_SO(stream, sid)->ext;
- INIT_LIST_HEAD(&stream->out[sid].ext->outq);
+ INIT_LIST_HEAD(&ext->outq);
return sched->init_sid(stream, sid, gfp);
}
diff --git a/net/sctp/stream_sched_prio.c b/net/sctp/stream_sched_prio.c
index 7997d35dd0fd..2245083a98f2 100644
--- a/net/sctp/stream_sched_prio.c
+++ b/net/sctp/stream_sched_prio.c
@@ -75,10 +75,10 @@ static struct sctp_stream_priorities *sctp_sched_prio_get_head(
/* No luck. So we search on all streams now. */
for (i = 0; i < stream->outcnt; i++) {
- if (!stream->out[i].ext)
+ if (!SCTP_SO(stream, i)->ext)
continue;
- p = stream->out[i].ext->prio_head;
+ p = SCTP_SO(stream, i)->ext->prio_head;
if (!p)
/* Means all other streams won't be initialized
* as well.
@@ -165,7 +165,7 @@ static void sctp_sched_prio_sched(struct sctp_stream *stream,
static int sctp_sched_prio_set(struct sctp_stream *stream, __u16 sid,
__u16 prio, gfp_t gfp)
{
- struct sctp_stream_out *sout = &stream->out[sid];
+ struct sctp_stream_out *sout = SCTP_SO(stream, sid);
struct sctp_stream_out_ext *soute = sout->ext;
struct sctp_stream_priorities *prio_head, *old;
bool reschedule = false;
@@ -186,7 +186,7 @@ static int sctp_sched_prio_set(struct sctp_stream *stream, __u16 sid,
return 0;
for (i = 0; i < stream->outcnt; i++) {
- soute = stream->out[i].ext;
+ soute = SCTP_SO(stream, i)->ext;
if (soute && soute->prio_head == old)
/* It's still in use, nothing else to do here. */
return 0;
@@ -201,7 +201,7 @@ static int sctp_sched_prio_set(struct sctp_stream *stream, __u16 sid,
static int sctp_sched_prio_get(struct sctp_stream *stream, __u16 sid,
__u16 *value)
{
- *value = stream->out[sid].ext->prio_head->prio;
+ *value = SCTP_SO(stream, sid)->ext->prio_head->prio;
return 0;
}
@@ -215,7 +215,7 @@ static int sctp_sched_prio_init(struct sctp_stream *stream)
static int sctp_sched_prio_init_sid(struct sctp_stream *stream, __u16 sid,
gfp_t gfp)
{
- INIT_LIST_HEAD(&stream->out[sid].ext->prio_list);
+ INIT_LIST_HEAD(&SCTP_SO(stream, sid)->ext->prio_list);
return sctp_sched_prio_set(stream, sid, 0, gfp);
}
@@ -233,9 +233,9 @@ static void sctp_sched_prio_free(struct sctp_stream *stream)
*/
sctp_sched_prio_unsched_all(stream);
for (i = 0; i < stream->outcnt; i++) {
- if (!stream->out[i].ext)
+ if (!SCTP_SO(stream, i)->ext)
continue;
- prio = stream->out[i].ext->prio_head;
+ prio = SCTP_SO(stream, i)->ext->prio_head;
if (prio && list_empty(&prio->prio_sched))
list_add(&prio->prio_sched, &list);
}
@@ -255,7 +255,7 @@ static void sctp_sched_prio_enqueue(struct sctp_outq *q,
ch = list_first_entry(&msg->chunks, struct sctp_chunk, frag_list);
sid = sctp_chunk_stream_no(ch);
stream = &q->asoc->stream;
- sctp_sched_prio_sched(stream, stream->out[sid].ext);
+ sctp_sched_prio_sched(stream, SCTP_SO(stream, sid)->ext);
}
static struct sctp_chunk *sctp_sched_prio_dequeue(struct sctp_outq *q)
@@ -297,7 +297,7 @@ static void sctp_sched_prio_dequeue_done(struct sctp_outq *q,
* this priority.
*/
sid = sctp_chunk_stream_no(ch);
- soute = q->asoc->stream.out[sid].ext;
+ soute = SCTP_SO(&q->asoc->stream, sid)->ext;
prio = soute->prio_head;
sctp_sched_prio_next_stream(prio);
@@ -317,7 +317,7 @@ static void sctp_sched_prio_sched_all(struct sctp_stream *stream)
__u16 sid;
sid = sctp_chunk_stream_no(ch);
- sout = &stream->out[sid];
+ sout = SCTP_SO(stream, sid);
if (sout->ext)
sctp_sched_prio_sched(stream, sout->ext);
}
diff --git a/net/sctp/stream_sched_rr.c b/net/sctp/stream_sched_rr.c
index 1155692448f1..52ba743fa7a7 100644
--- a/net/sctp/stream_sched_rr.c
+++ b/net/sctp/stream_sched_rr.c
@@ -100,7 +100,7 @@ static int sctp_sched_rr_init(struct sctp_stream *stream)
static int sctp_sched_rr_init_sid(struct sctp_stream *stream, __u16 sid,
gfp_t gfp)
{
- INIT_LIST_HEAD(&stream->out[sid].ext->rr_list);
+ INIT_LIST_HEAD(&SCTP_SO(stream, sid)->ext->rr_list);
return 0;
}
@@ -120,7 +120,7 @@ static void sctp_sched_rr_enqueue(struct sctp_outq *q,
ch = list_first_entry(&msg->chunks, struct sctp_chunk, frag_list);
sid = sctp_chunk_stream_no(ch);
stream = &q->asoc->stream;
- sctp_sched_rr_sched(stream, stream->out[sid].ext);
+ sctp_sched_rr_sched(stream, SCTP_SO(stream, sid)->ext);
}
static struct sctp_chunk *sctp_sched_rr_dequeue(struct sctp_outq *q)
@@ -154,7 +154,7 @@ static void sctp_sched_rr_dequeue_done(struct sctp_outq *q,
/* Last chunk on that msg, move to the next stream */
sid = sctp_chunk_stream_no(ch);
- soute = q->asoc->stream.out[sid].ext;
+ soute = SCTP_SO(&q->asoc->stream, sid)->ext;
sctp_sched_rr_next_stream(&q->asoc->stream);
@@ -173,7 +173,7 @@ static void sctp_sched_rr_sched_all(struct sctp_stream *stream)
__u16 sid;
sid = sctp_chunk_stream_no(ch);
- soute = stream->out[sid].ext;
+ soute = SCTP_SO(stream, sid)->ext;
if (soute)
sctp_sched_rr_sched(stream, soute);
}
--
2.15.1
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