/********************************************************************* * * Filename: ircomm_event.h * Version: * Description: * Status: Experimental. * Author: Dag Brattli * Created at: Sun Jun 6 23:51:13 1999 * Modified at: Thu Jun 10 08:36:25 1999 * Modified by: Dag Brattli * * Copyright (c) 1999 Dag Brattli, All Rights Reserved. * * This program 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 of * the License, or (at your option) any later version. * * This program 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 this program; if not, see . * ********************************************************************/ #ifndef IRCOMM_EVENT_H #define IRCOMM_EVENT_H #include typedef enum { IRCOMM_IDLE, IRCOMM_WAITI, IRCOMM_WAITR, IRCOMM_CONN, } IRCOMM_STATE; /* IrCOMM Events */ typedef enum { IRCOMM_CONNECT_REQUEST, IRCOMM_CONNECT_RESPONSE, IRCOMM_TTP_CONNECT_INDICATION, IRCOMM_LMP_CONNECT_INDICATION, IRCOMM_TTP_CONNECT_CONFIRM, IRCOMM_LMP_CONNECT_CONFIRM, IRCOMM_LMP_DISCONNECT_INDICATION, IRCOMM_TTP_DISCONNECT_INDICATION, IRCOMM_DISCONNECT_REQUEST, IRCOMM_TTP_DATA_INDICATION, IRCOMM_LMP_DATA_INDICATION, IRCOMM_DATA_REQUEST, IRCOMM_CONTROL_REQUEST, IRCOMM_CONTROL_INDICATION, } IRCOMM_EVENT; /* * Used for passing information through the state-machine */ struct ircomm_info { __u32 saddr; /* Source device address */ __u32 daddr; /* Destination device address */ __u8 dlsap_sel; LM_REASON reason; /* Reason for disconnect */ __u32 max_data_size; __u32 max_header_size; struct qos_info *qos; }; extern const char *const ircomm_state[]; struct ircomm_cb; /* Forward decl. */ int ircomm_do_event(struct ircomm_cb *self, IRCOMM_EVENT event, struct sk_buff *skb, struct ircomm_info *info); void ircomm_next_state(struct ircomm_cb *self, IRCOMM_STATE state); #endif t type='submit' value='search'/>
path: root/net/rxrpc/call_accept.c
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authorTejun Heo <tj@kernel.org>2017-01-26 16:47:28 -0500
committerTejun Heo <tj@kernel.org>2017-01-26 16:47:28 -0500
commit07cd12945551b63ecb1a349d50a6d69d1d6feb4a (patch)
tree75f65eba7eac9277971082a2d5a4cf1370562c0c /net/rxrpc/call_accept.c
parent7ce7d89f48834cefece7804d38fc5d85382edf77 (diff)
cgroup: don't online subsystems before cgroup_name/path() are operational
While refactoring cgroup creation, a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") incorrectly onlined subsystems before the new cgroup is associated with it kernfs_node. This is fine for cgroup proper but cgroup_name/path() depend on the associated kernfs_node and if a subsystem makes the new cgroup_subsys_state visible, which they're allowed to after onlining, it can lead to NULL dereference. The current code performs cgroup creation and subsystem onlining in cgroup_create() and cgroup_mkdir() makes the cgroup and subsystems visible afterwards. There's no reason to online the subsystems early and we can simply drop cgroup_apply_control_enable() call from cgroup_create() so that the subsystems are onlined and made visible at the same time. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Fixes: a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") Cc: stable@vger.kernel.org # v4.6+
Diffstat (limited to 'net/rxrpc/call_accept.c')