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Expand INIT_TASK() in init/init_task.c and remove

Browse source 
It's no longer necessary to have an INIT_TASK() macro, and this can be
expanded into the one place it is now used and removed.

Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Tony Luck <tony.luck@intel.com>
Tested-by: Will Deacon <will.deacon@arm.com> (arm64)
Tested-by: Palmer Dabbelt <palmer@sifive.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
David Howells 2018-01-02 15:12:01 +00:00
parent 0500871f21
commit d11ed3ab31
2 changed files with 87 additions and 85 deletions
Download patch file Download diff file Expand all files Collapse all files

85
init/init_task.c
View file

@ -16,12 +16,93 @@
static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
/* Initial task structure */
/*
* Set up the first task table, touch at your own risk!. Base=0,
* limit=0x1fffff (=2MB)
*/
struct task_struct init_task
#ifdef CONFIG_ARCH_TASK_STRUCT_ON_STACK
__init_task_data
#endif
= INIT_TASK(init_task);
= {
INIT_TASK_TI(init_task)
.state = 0,
.stack = init_stack,
.usage = ATOMIC_INIT(2),
.flags = PF_KTHREAD,
.prio = MAX_PRIO-20,
.static_prio = MAX_PRIO-20,
.normal_prio = MAX_PRIO-20,
.policy = SCHED_NORMAL,
.cpus_allowed = CPU_MASK_ALL,
.nr_cpus_allowed= NR_CPUS,
.mm = NULL,
.active_mm = &init_mm,
.restart_block = {
.fn = do_no_restart_syscall,
},
.se = {
.group_node = LIST_HEAD_INIT(init_task.se.group_node),
},
.rt = {
.run_list = LIST_HEAD_INIT(init_task.rt.run_list),
.time_slice = RR_TIMESLICE,
},
.tasks = LIST_HEAD_INIT(init_task.tasks),
INIT_PUSHABLE_TASKS(init_task)
INIT_CGROUP_SCHED(init_task)
.ptraced = LIST_HEAD_INIT(init_task.ptraced),
.ptrace_entry = LIST_HEAD_INIT(init_task.ptrace_entry),
.real_parent = &init_task,
.parent = &init_task,
.children = LIST_HEAD_INIT(init_task.children),
.sibling = LIST_HEAD_INIT(init_task.sibling),
.group_leader = &init_task,
RCU_POINTER_INITIALIZER(real_cred, &init_cred),
RCU_POINTER_INITIALIZER(cred, &init_cred),
.comm = INIT_TASK_COMM,
.thread = INIT_THREAD,
.fs = &init_fs,
.files = &init_files,
.signal = &init_signals,
.sighand = &init_sighand,
.nsproxy = &init_nsproxy,
.pending = {
.list = LIST_HEAD_INIT(init_task.pending.list),
.signal = {{0}}
},
.blocked = {{0}},
.alloc_lock = __SPIN_LOCK_UNLOCKED(init_task.alloc_lock),
.journal_info = NULL,
INIT_CPU_TIMERS(init_task)
.pi_lock = __RAW_SPIN_LOCK_UNLOCKED(init_task.pi_lock),
.timer_slack_ns = 50000, /* 50 usec default slack */
.pids = {
[PIDTYPE_PID] = INIT_PID_LINK(PIDTYPE_PID),
[PIDTYPE_PGID] = INIT_PID_LINK(PIDTYPE_PGID),
[PIDTYPE_SID] = INIT_PID_LINK(PIDTYPE_SID),
},
.thread_group = LIST_HEAD_INIT(init_task.thread_group),
.thread_node = LIST_HEAD_INIT(init_signals.thread_head),
INIT_IDS
INIT_PERF_EVENTS(init_task)
INIT_TRACE_IRQFLAGS
INIT_LOCKDEP
INIT_FTRACE_GRAPH
INIT_TRACE_RECURSION
INIT_TASK_RCU_PREEMPT(init_task)
INIT_TASK_RCU_TASKS(init_task)
INIT_CPUSET_SEQ(init_task)
INIT_RT_MUTEXES(init_task)
INIT_PREV_CPUTIME(init_task)
INIT_VTIME(init_task)
INIT_NUMA_BALANCING(init_task)
INIT_KASAN(init_task)
INIT_LIVEPATCH(init_task)
INIT_TASK_SECURITY
};
EXPORT_SYMBOL(init_task);
/*