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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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20
net/sctp/stream_interleave.c
View file

@ -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) {