From cf4ce59b3b70238352c7f1729f0f7223214828ad Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 20 Sep 2024 01:46:19 +0000
Subject: [PATCH] rtl88x2CE_WiFi_linux add concurrent mode
---
kernel/net/sctp/stream_sched_prio.c | 62 ++++++++++++++-----------------
1 files changed, 28 insertions(+), 34 deletions(-)
diff --git a/kernel/net/sctp/stream_sched_prio.c b/kernel/net/sctp/stream_sched_prio.c
index 2245083..7dd9f8b 100644
--- a/kernel/net/sctp/stream_sched_prio.c
+++ b/kernel/net/sctp/stream_sched_prio.c
@@ -1,25 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/* SCTP kernel implementation
* (C) Copyright Red Hat Inc. 2017
*
* This file is part of the SCTP kernel implementation
*
* These functions manipulate sctp stream queue/scheduling.
- *
- * This SCTP implementation is free software;
- * you can redistribute it and/or modify it under the terms of
- * the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This SCTP implementation is distributed in the hope that it
- * will be useful, but WITHOUT ANY WARRANTY; without even the implied
- * ************************
- * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GNU CC; see the file COPYING. If not, see
- * <http://www.gnu.org/licenses/>.
*
* Please send any bug reports or fixes you make to the
* email addresched(es):
@@ -40,6 +25,18 @@
static void sctp_sched_prio_unsched_all(struct sctp_stream *stream);
+static struct sctp_stream_priorities *sctp_sched_prio_head_get(struct sctp_stream_priorities *p)
+{
+ p->users++;
+ return p;
+}
+
+static void sctp_sched_prio_head_put(struct sctp_stream_priorities *p)
+{
+ if (p && --p->users == 0)
+ kfree(p);
+}
+
static struct sctp_stream_priorities *sctp_sched_prio_new_head(
struct sctp_stream *stream, int prio, gfp_t gfp)
{
@@ -53,6 +50,7 @@
INIT_LIST_HEAD(&p->active);
p->next = NULL;
p->prio = prio;
+ p->users = 1;
return p;
}
@@ -68,7 +66,7 @@
*/
list_for_each_entry(p, &stream->prio_list, prio_sched) {
if (p->prio == prio)
- return p;
+ return sctp_sched_prio_head_get(p);
if (p->prio > prio)
break;
}
@@ -85,7 +83,7 @@
*/
break;
if (p->prio == prio)
- return p;
+ return sctp_sched_prio_head_get(p);
}
/* If not even there, allocate a new one. */
@@ -169,32 +167,21 @@
struct sctp_stream_out_ext *soute = sout->ext;
struct sctp_stream_priorities *prio_head, *old;
bool reschedule = false;
- int i;
+
+ old = soute->prio_head;
+ if (old && old->prio == prio)
+ return 0;
prio_head = sctp_sched_prio_get_head(stream, prio, gfp);
if (!prio_head)
return -ENOMEM;
reschedule = sctp_sched_prio_unsched(soute);
- old = soute->prio_head;
soute->prio_head = prio_head;
if (reschedule)
sctp_sched_prio_sched(stream, soute);
- if (!old)
- /* Happens when we set the priority for the first time */
- return 0;
-
- for (i = 0; i < stream->outcnt; i++) {
- soute = SCTP_SO(stream, i)->ext;
- if (soute && soute->prio_head == old)
- /* It's still in use, nothing else to do here. */
- return 0;
- }
-
- /* No hits, we are good to free it. */
- kfree(old);
-
+ sctp_sched_prio_head_put(old);
return 0;
}
@@ -217,6 +204,12 @@
{
INIT_LIST_HEAD(&SCTP_SO(stream, sid)->ext->prio_list);
return sctp_sched_prio_set(stream, sid, 0, gfp);
+}
+
+static void sctp_sched_prio_free_sid(struct sctp_stream *stream, __u16 sid)
+{
+ sctp_sched_prio_head_put(SCTP_SO(stream, sid)->ext->prio_head);
+ SCTP_SO(stream, sid)->ext->prio_head = NULL;
}
static void sctp_sched_prio_free(struct sctp_stream *stream)
@@ -338,6 +331,7 @@
.get = sctp_sched_prio_get,
.init = sctp_sched_prio_init,
.init_sid = sctp_sched_prio_init_sid,
+ .free_sid = sctp_sched_prio_free_sid,
.free = sctp_sched_prio_free,
.enqueue = sctp_sched_prio_enqueue,
.dequeue = sctp_sched_prio_dequeue,
--
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