/* * intel_pt_insn_decoder.h: Intel Processor Trace support * Copyright (c) 2013-2014, Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope 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. * */ #ifndef INCLUDE__INTEL_PT_INSN_DECODER_H__ #define INCLUDE__INTEL_PT_INSN_DECODER_H__ #include #include #define INTEL_PT_INSN_DESC_MAX 32 #define INTEL_PT_INSN_BUF_SZ 16 enum intel_pt_insn_op { INTEL_PT_OP_OTHER, INTEL_PT_OP_CALL, INTEL_PT_OP_RET, INTEL_PT_OP_JCC, INTEL_PT_OP_JMP, INTEL_PT_OP_LOOP, INTEL_PT_OP_IRET, INTEL_PT_OP_INT, INTEL_PT_OP_SYSCALL, INTEL_PT_OP_SYSRET, }; enum intel_pt_insn_branch { INTEL_PT_BR_NO_BRANCH, INTEL_PT_BR_INDIRECT, INTEL_PT_BR_CONDITIONAL, INTEL_PT_BR_UNCONDITIONAL, }; struct intel_pt_insn { enum intel_pt_insn_op op; enum intel_pt_insn_branch branch; int length; int32_t rel; unsigned char buf[INTEL_PT_INSN_BUF_SZ]; }; int intel_pt_get_insn(const unsigned char *buf, size_t len, int x86_64, struct intel_pt_insn *intel_pt_insn); const char *intel_pt_insn_name(enum intel_pt_insn_op op); int intel_pt_insn_desc(const struct intel_pt_insn *intel_pt_insn, char *buf, size_t buf_len); int intel_pt_insn_type(enum intel_pt_insn_op op); #endif ecb1a349d50a6d69d1d6feb4a'>refslogtreecommitdiff
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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/unix/Makefile
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/unix/Makefile')