David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 1 | /* RxRPC virtual connection handler |
| 2 | * |
| 3 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. |
| 4 | * Written by David Howells (dhowells@redhat.com) |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License |
| 8 | * as published by the Free Software Foundation; either version |
| 9 | * 2 of the License, or (at your option) any later version. |
| 10 | */ |
| 11 | |
Joe Perches | 9b6d539 | 2016-06-02 12:08:52 -0700 | [diff] [blame] | 12 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 13 | |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 14 | #include <linux/module.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 15 | #include <linux/slab.h> |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 16 | #include <linux/net.h> |
| 17 | #include <linux/skbuff.h> |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 18 | #include <net/sock.h> |
| 19 | #include <net/af_rxrpc.h> |
| 20 | #include "ar-internal.h" |
| 21 | |
David Howells | 5873c08 | 2014-02-07 18:58:44 +0000 | [diff] [blame] | 22 | /* |
| 23 | * Time till a connection expires after last use (in seconds). |
| 24 | */ |
David Howells | dad8aff | 2016-03-09 23:22:56 +0000 | [diff] [blame] | 25 | unsigned int rxrpc_connection_expiry = 10 * 60; |
David Howells | 5873c08 | 2014-02-07 18:58:44 +0000 | [diff] [blame] | 26 | |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 27 | static void rxrpc_connection_reaper(struct work_struct *work); |
| 28 | |
| 29 | LIST_HEAD(rxrpc_connections); |
| 30 | DEFINE_RWLOCK(rxrpc_connection_lock); |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 31 | static DECLARE_DELAYED_WORK(rxrpc_connection_reap, rxrpc_connection_reaper); |
| 32 | |
| 33 | /* |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 34 | * allocate a new connection |
| 35 | */ |
David Howells | c6d2b8d | 2016-04-04 14:00:40 +0100 | [diff] [blame] | 36 | struct rxrpc_connection *rxrpc_alloc_connection(gfp_t gfp) |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 37 | { |
| 38 | struct rxrpc_connection *conn; |
| 39 | |
| 40 | _enter(""); |
| 41 | |
| 42 | conn = kzalloc(sizeof(struct rxrpc_connection), gfp); |
| 43 | if (conn) { |
David Howells | 999b69f | 2016-06-17 15:42:35 +0100 | [diff] [blame] | 44 | spin_lock_init(&conn->channel_lock); |
| 45 | init_waitqueue_head(&conn->channel_wq); |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 46 | INIT_WORK(&conn->processor, &rxrpc_process_connection); |
David Howells | 999b69f | 2016-06-17 15:42:35 +0100 | [diff] [blame] | 47 | INIT_LIST_HEAD(&conn->link); |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 48 | skb_queue_head_init(&conn->rx_queue); |
David Howells | e0e4d82 | 2016-04-07 17:23:58 +0100 | [diff] [blame] | 49 | conn->security = &rxrpc_no_security; |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 50 | spin_lock_init(&conn->state_lock); |
David Howells | 001c112 | 2016-06-30 10:45:22 +0100 | [diff] [blame] | 51 | /* We maintain an extra ref on the connection whilst it is |
| 52 | * on the rxrpc_connections list. |
| 53 | */ |
| 54 | atomic_set(&conn->usage, 2); |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 55 | conn->debug_id = atomic_inc_return(&rxrpc_debug_id); |
David Howells | 999b69f | 2016-06-17 15:42:35 +0100 | [diff] [blame] | 56 | atomic_set(&conn->avail_chans, RXRPC_MAXCALLS); |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 57 | conn->size_align = 4; |
David Howells | 0d12f8a | 2016-03-04 15:53:46 +0000 | [diff] [blame] | 58 | conn->header_size = sizeof(struct rxrpc_wire_header); |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 59 | } |
| 60 | |
Adrian Bunk | 16c61ad | 2007-06-15 15:15:43 -0700 | [diff] [blame] | 61 | _leave(" = %p{%d}", conn, conn ? conn->debug_id : 0); |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 62 | return conn; |
| 63 | } |
| 64 | |
| 65 | /* |
David Howells | 8496af5 | 2016-07-01 07:51:50 +0100 | [diff] [blame] | 66 | * Look up a connection in the cache by protocol parameters. |
| 67 | * |
| 68 | * If successful, a pointer to the connection is returned, but no ref is taken. |
| 69 | * NULL is returned if there is no match. |
| 70 | * |
| 71 | * The caller must be holding the RCU read lock. |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 72 | */ |
David Howells | 8496af5 | 2016-07-01 07:51:50 +0100 | [diff] [blame] | 73 | struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *local, |
| 74 | struct sk_buff *skb) |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 75 | { |
| 76 | struct rxrpc_connection *conn; |
David Howells | 1291e9d | 2016-06-30 12:02:53 +0100 | [diff] [blame] | 77 | struct rxrpc_conn_proto k; |
David Howells | 42886ff | 2016-06-16 13:31:07 +0100 | [diff] [blame] | 78 | struct rxrpc_skb_priv *sp = rxrpc_skb(skb); |
David Howells | 1291e9d | 2016-06-30 12:02:53 +0100 | [diff] [blame] | 79 | struct sockaddr_rxrpc srx; |
| 80 | struct rxrpc_peer *peer; |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 81 | |
David Howells | 8496af5 | 2016-07-01 07:51:50 +0100 | [diff] [blame] | 82 | _enter(",%x", sp->hdr.cid & RXRPC_CIDMASK); |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 83 | |
David Howells | 1291e9d | 2016-06-30 12:02:53 +0100 | [diff] [blame] | 84 | if (rxrpc_extract_addr_from_skb(&srx, skb) < 0) |
| 85 | goto not_found; |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 86 | |
David Howells | 8496af5 | 2016-07-01 07:51:50 +0100 | [diff] [blame] | 87 | k.epoch = sp->hdr.epoch; |
| 88 | k.cid = sp->hdr.cid & RXRPC_CIDMASK; |
| 89 | |
David Howells | 1291e9d | 2016-06-30 12:02:53 +0100 | [diff] [blame] | 90 | /* We may have to handle mixing IPv4 and IPv6 */ |
| 91 | if (srx.transport.family != local->srx.transport.family) { |
| 92 | pr_warn_ratelimited("AF_RXRPC: Protocol mismatch %u not %u\n", |
| 93 | srx.transport.family, |
| 94 | local->srx.transport.family); |
| 95 | goto not_found; |
| 96 | } |
| 97 | |
| 98 | k.epoch = sp->hdr.epoch; |
| 99 | k.cid = sp->hdr.cid & RXRPC_CIDMASK; |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 100 | |
David Howells | 4a3388c | 2016-04-04 14:00:37 +0100 | [diff] [blame] | 101 | if (sp->hdr.flags & RXRPC_CLIENT_INITIATED) { |
David Howells | 1291e9d | 2016-06-30 12:02:53 +0100 | [diff] [blame] | 102 | /* We need to look up service connections by the full protocol |
| 103 | * parameter set. We look up the peer first as an intermediate |
| 104 | * step and then the connection from the peer's tree. |
| 105 | */ |
| 106 | peer = rxrpc_lookup_peer_rcu(local, &srx); |
| 107 | if (!peer) |
| 108 | goto not_found; |
David Howells | 8496af5 | 2016-07-01 07:51:50 +0100 | [diff] [blame] | 109 | conn = rxrpc_find_service_conn_rcu(peer, skb); |
| 110 | if (!conn || atomic_read(&conn->usage) == 0) |
| 111 | goto not_found; |
| 112 | _leave(" = %p", conn); |
| 113 | return conn; |
David Howells | 4a3388c | 2016-04-04 14:00:37 +0100 | [diff] [blame] | 114 | } else { |
David Howells | 8496af5 | 2016-07-01 07:51:50 +0100 | [diff] [blame] | 115 | /* Look up client connections by connection ID alone as their |
| 116 | * IDs are unique for this machine. |
| 117 | */ |
David Howells | 1291e9d | 2016-06-30 12:02:53 +0100 | [diff] [blame] | 118 | conn = idr_find(&rxrpc_client_conn_ids, |
David Howells | 8496af5 | 2016-07-01 07:51:50 +0100 | [diff] [blame] | 119 | sp->hdr.cid >> RXRPC_CIDSHIFT); |
| 120 | if (!conn || atomic_read(&conn->usage) == 0) { |
| 121 | _debug("no conn"); |
| 122 | goto not_found; |
| 123 | } |
| 124 | |
| 125 | if (conn->proto.epoch != k.epoch || |
David Howells | 1291e9d | 2016-06-30 12:02:53 +0100 | [diff] [blame] | 126 | conn->params.local != local) |
| 127 | goto not_found; |
| 128 | |
| 129 | peer = conn->params.peer; |
| 130 | switch (srx.transport.family) { |
| 131 | case AF_INET: |
| 132 | if (peer->srx.transport.sin.sin_port != |
| 133 | srx.transport.sin.sin_port || |
| 134 | peer->srx.transport.sin.sin_addr.s_addr != |
| 135 | srx.transport.sin.sin_addr.s_addr) |
| 136 | goto not_found; |
| 137 | break; |
| 138 | default: |
| 139 | BUG(); |
| 140 | } |
| 141 | |
David Howells | 1291e9d | 2016-06-30 12:02:53 +0100 | [diff] [blame] | 142 | _leave(" = %p", conn); |
| 143 | return conn; |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 144 | } |
| 145 | |
David Howells | 1291e9d | 2016-06-30 12:02:53 +0100 | [diff] [blame] | 146 | not_found: |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 147 | _leave(" = NULL"); |
| 148 | return NULL; |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 149 | } |
| 150 | |
| 151 | /* |
David Howells | 999b69f | 2016-06-17 15:42:35 +0100 | [diff] [blame] | 152 | * Disconnect a call and clear any channel it occupies when that call |
David Howells | a1399f8 | 2016-06-27 14:39:44 +0100 | [diff] [blame] | 153 | * terminates. The caller must hold the channel_lock and must release the |
| 154 | * call's ref on the connection. |
| 155 | */ |
| 156 | void __rxrpc_disconnect_call(struct rxrpc_call *call) |
| 157 | { |
| 158 | struct rxrpc_connection *conn = call->conn; |
| 159 | struct rxrpc_channel *chan = &conn->channels[call->channel]; |
| 160 | |
| 161 | _enter("%d,%d", conn->debug_id, call->channel); |
| 162 | |
| 163 | if (rcu_access_pointer(chan->call) == call) { |
| 164 | /* Save the result of the call so that we can repeat it if necessary |
| 165 | * through the channel, whilst disposing of the actual call record. |
| 166 | */ |
| 167 | chan->last_result = call->local_abort; |
| 168 | smp_wmb(); |
| 169 | chan->last_call = chan->call_id; |
| 170 | chan->call_id = chan->call_counter; |
| 171 | |
| 172 | rcu_assign_pointer(chan->call, NULL); |
| 173 | atomic_inc(&conn->avail_chans); |
| 174 | wake_up(&conn->channel_wq); |
| 175 | } |
| 176 | |
| 177 | _leave(""); |
| 178 | } |
| 179 | |
| 180 | /* |
| 181 | * Disconnect a call and clear any channel it occupies when that call |
David Howells | 999b69f | 2016-06-17 15:42:35 +0100 | [diff] [blame] | 182 | * terminates. |
| 183 | */ |
| 184 | void rxrpc_disconnect_call(struct rxrpc_call *call) |
| 185 | { |
| 186 | struct rxrpc_connection *conn = call->conn; |
David Howells | 999b69f | 2016-06-17 15:42:35 +0100 | [diff] [blame] | 187 | |
David Howells | e653cfe | 2016-04-04 14:00:38 +0100 | [diff] [blame] | 188 | spin_lock(&conn->channel_lock); |
David Howells | a1399f8 | 2016-06-27 14:39:44 +0100 | [diff] [blame] | 189 | __rxrpc_disconnect_call(call); |
David Howells | e653cfe | 2016-04-04 14:00:38 +0100 | [diff] [blame] | 190 | spin_unlock(&conn->channel_lock); |
| 191 | |
| 192 | call->conn = NULL; |
| 193 | rxrpc_put_connection(conn); |
David Howells | 999b69f | 2016-06-17 15:42:35 +0100 | [diff] [blame] | 194 | } |
| 195 | |
| 196 | /* |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 197 | * release a virtual connection |
| 198 | */ |
| 199 | void rxrpc_put_connection(struct rxrpc_connection *conn) |
| 200 | { |
David Howells | 999b69f | 2016-06-17 15:42:35 +0100 | [diff] [blame] | 201 | if (!conn) |
| 202 | return; |
| 203 | |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 204 | _enter("%p{u=%d,d=%d}", |
| 205 | conn, atomic_read(&conn->usage), conn->debug_id); |
| 206 | |
David Howells | 001c112 | 2016-06-30 10:45:22 +0100 | [diff] [blame] | 207 | ASSERTCMP(atomic_read(&conn->usage), >, 1); |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 208 | |
Ksenija Stanojevic | 22a3f9a | 2015-09-17 18:12:53 +0200 | [diff] [blame] | 209 | conn->put_time = ktime_get_seconds(); |
David Howells | 001c112 | 2016-06-30 10:45:22 +0100 | [diff] [blame] | 210 | if (atomic_dec_return(&conn->usage) == 1) { |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 211 | _debug("zombie"); |
David Howells | 651350d | 2007-04-26 15:50:17 -0700 | [diff] [blame] | 212 | rxrpc_queue_delayed_work(&rxrpc_connection_reap, 0); |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 213 | } |
| 214 | |
| 215 | _leave(""); |
| 216 | } |
| 217 | |
| 218 | /* |
| 219 | * destroy a virtual connection |
| 220 | */ |
David Howells | dee4636 | 2016-06-27 17:11:19 +0100 | [diff] [blame] | 221 | static void rxrpc_destroy_connection(struct rcu_head *rcu) |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 222 | { |
David Howells | dee4636 | 2016-06-27 17:11:19 +0100 | [diff] [blame] | 223 | struct rxrpc_connection *conn = |
| 224 | container_of(rcu, struct rxrpc_connection, rcu); |
| 225 | |
| 226 | _enter("{%d,u=%d}", conn->debug_id, atomic_read(&conn->usage)); |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 227 | |
| 228 | ASSERTCMP(atomic_read(&conn->usage), ==, 0); |
| 229 | |
| 230 | _net("DESTROY CONN %d", conn->debug_id); |
| 231 | |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 232 | rxrpc_purge_queue(&conn->rx_queue); |
| 233 | |
David Howells | e0e4d82 | 2016-04-07 17:23:58 +0100 | [diff] [blame] | 234 | conn->security->clear(conn); |
David Howells | 19ffa01 | 2016-04-04 14:00:36 +0100 | [diff] [blame] | 235 | key_put(conn->params.key); |
David Howells | e0e4d82 | 2016-04-07 17:23:58 +0100 | [diff] [blame] | 236 | key_put(conn->server_key); |
David Howells | aa390bb | 2016-06-17 10:06:56 +0100 | [diff] [blame] | 237 | rxrpc_put_peer(conn->params.peer); |
| 238 | rxrpc_put_local(conn->params.local); |
David Howells | e0e4d82 | 2016-04-07 17:23:58 +0100 | [diff] [blame] | 239 | |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 240 | kfree(conn); |
| 241 | _leave(""); |
| 242 | } |
| 243 | |
| 244 | /* |
| 245 | * reap dead connections |
| 246 | */ |
Roel Kluin | 5eaa65b | 2008-12-10 15:18:31 -0800 | [diff] [blame] | 247 | static void rxrpc_connection_reaper(struct work_struct *work) |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 248 | { |
| 249 | struct rxrpc_connection *conn, *_p; |
David Howells | 001c112 | 2016-06-30 10:45:22 +0100 | [diff] [blame] | 250 | unsigned long reap_older_than, earliest, put_time, now; |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 251 | |
| 252 | LIST_HEAD(graveyard); |
| 253 | |
| 254 | _enter(""); |
| 255 | |
Ksenija Stanojevic | 22a3f9a | 2015-09-17 18:12:53 +0200 | [diff] [blame] | 256 | now = ktime_get_seconds(); |
David Howells | 001c112 | 2016-06-30 10:45:22 +0100 | [diff] [blame] | 257 | reap_older_than = now - rxrpc_connection_expiry; |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 258 | earliest = ULONG_MAX; |
| 259 | |
David Howells | b3f5750 | 2016-06-21 16:10:03 +0100 | [diff] [blame] | 260 | write_lock(&rxrpc_connection_lock); |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 261 | list_for_each_entry_safe(conn, _p, &rxrpc_connections, link) { |
David Howells | 001c112 | 2016-06-30 10:45:22 +0100 | [diff] [blame] | 262 | ASSERTCMP(atomic_read(&conn->usage), >, 0); |
| 263 | if (likely(atomic_read(&conn->usage) > 1)) |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 264 | continue; |
| 265 | |
David Howells | 001c112 | 2016-06-30 10:45:22 +0100 | [diff] [blame] | 266 | put_time = READ_ONCE(conn->put_time); |
| 267 | if (time_after(put_time, reap_older_than)) { |
| 268 | if (time_before(put_time, earliest)) |
| 269 | earliest = put_time; |
| 270 | continue; |
David Howells | 999b69f | 2016-06-17 15:42:35 +0100 | [diff] [blame] | 271 | } |
David Howells | 001c112 | 2016-06-30 10:45:22 +0100 | [diff] [blame] | 272 | |
| 273 | /* The usage count sits at 1 whilst the object is unused on the |
| 274 | * list; we reduce that to 0 to make the object unavailable. |
| 275 | */ |
| 276 | if (atomic_cmpxchg(&conn->usage, 1, 0) != 1) |
| 277 | continue; |
| 278 | |
| 279 | if (rxrpc_conn_is_client(conn)) |
| 280 | rxrpc_unpublish_client_conn(conn); |
| 281 | else |
| 282 | rxrpc_unpublish_service_conn(conn); |
| 283 | |
| 284 | list_move_tail(&conn->link, &graveyard); |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 285 | } |
David Howells | b3f5750 | 2016-06-21 16:10:03 +0100 | [diff] [blame] | 286 | write_unlock(&rxrpc_connection_lock); |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 287 | |
| 288 | if (earliest != ULONG_MAX) { |
| 289 | _debug("reschedule reaper %ld", (long) earliest - now); |
| 290 | ASSERTCMP(earliest, >, now); |
David Howells | 651350d | 2007-04-26 15:50:17 -0700 | [diff] [blame] | 291 | rxrpc_queue_delayed_work(&rxrpc_connection_reap, |
| 292 | (earliest - now) * HZ); |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 293 | } |
| 294 | |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 295 | while (!list_empty(&graveyard)) { |
| 296 | conn = list_entry(graveyard.next, struct rxrpc_connection, |
| 297 | link); |
| 298 | list_del_init(&conn->link); |
| 299 | |
| 300 | ASSERTCMP(atomic_read(&conn->usage), ==, 0); |
David Howells | dee4636 | 2016-06-27 17:11:19 +0100 | [diff] [blame] | 301 | skb_queue_purge(&conn->rx_queue); |
| 302 | call_rcu(&conn->rcu, rxrpc_destroy_connection); |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 303 | } |
| 304 | |
| 305 | _leave(""); |
| 306 | } |
| 307 | |
| 308 | /* |
| 309 | * preemptively destroy all the connection records rather than waiting for them |
| 310 | * to time out |
| 311 | */ |
| 312 | void __exit rxrpc_destroy_all_connections(void) |
| 313 | { |
David Howells | dee4636 | 2016-06-27 17:11:19 +0100 | [diff] [blame] | 314 | struct rxrpc_connection *conn, *_p; |
| 315 | bool leak = false; |
| 316 | |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 317 | _enter(""); |
| 318 | |
David Howells | 5873c08 | 2014-02-07 18:58:44 +0000 | [diff] [blame] | 319 | rxrpc_connection_expiry = 0; |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 320 | cancel_delayed_work(&rxrpc_connection_reap); |
David Howells | 651350d | 2007-04-26 15:50:17 -0700 | [diff] [blame] | 321 | rxrpc_queue_delayed_work(&rxrpc_connection_reap, 0); |
David Howells | dee4636 | 2016-06-27 17:11:19 +0100 | [diff] [blame] | 322 | flush_workqueue(rxrpc_workqueue); |
| 323 | |
| 324 | write_lock(&rxrpc_connection_lock); |
| 325 | list_for_each_entry_safe(conn, _p, &rxrpc_connections, link) { |
| 326 | pr_err("AF_RXRPC: Leaked conn %p {%d}\n", |
| 327 | conn, atomic_read(&conn->usage)); |
| 328 | leak = true; |
| 329 | } |
| 330 | write_unlock(&rxrpc_connection_lock); |
| 331 | BUG_ON(leak); |
| 332 | |
| 333 | /* Make sure the local and peer records pinned by any dying connections |
| 334 | * are released. |
| 335 | */ |
| 336 | rcu_barrier(); |
| 337 | rxrpc_destroy_client_conn_ids(); |
David Howells | 17926a7 | 2007-04-26 15:48:28 -0700 | [diff] [blame] | 338 | |
| 339 | _leave(""); |
| 340 | } |