/* * Intel MIC Platform Software Stack (MPSS) * * Copyright(c) 2013 Intel Corporation. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, version 2, as * published by the Free Software Foundation. * * 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. * * The full GNU General Public License is included in this distribution in * the file called "COPYING". * * Intel MIC User Space Tools. */ #ifndef _MPSSD_H_ #define _MPSSD_H_ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define MICSYSFSDIR "/sys/class/mic" #define LOGFILE_NAME "/var/log/mpssd" #define PAGE_SIZE 4096 struct mic_console_info { pthread_t console_thread; int virtio_console_fd; void *console_dp; }; struct mic_net_info { pthread_t net_thread; int virtio_net_fd; int tap_fd; void *net_dp; }; struct mic_virtblk_info { pthread_t block_thread; int virtio_block_fd; void *block_dp; volatile sig_atomic_t signaled; char *backend_file; int backend; void *backend_addr; long backend_size; }; struct mic_info { int id; char *name; pthread_t config_thread; pthread_t init_thread; pid_t pid; struct mic_console_info mic_console; struct mic_net_info mic_net; struct mic_virtblk_info mic_virtblk; int restart; int boot_on_resume; struct mic_info *next; }; __attribute__((format(printf, 1, 2))) void mpsslog(char *format, ...); char *readsysfs(char *dir, char *entry); int setsysfs(char *dir, char *entry, char *value); #endif >
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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 /include/trace/events/sunrpc.h
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 'include/trace/events/sunrpc.h')