Unroll various INIT_* macros into the single places they're used in init/init_task.c.
Signed-off-by: David Howells <[email protected]> --- include/linux/init_task.h | 101 --------------------------------------------- init/init_task.c | 75 +++++++++++++++++++++++++-------- 2 files changed, 56 insertions(+), 120 deletions(-) diff --git a/include/linux/init_task.h b/include/linux/init_task.h index 7e41bc6a19af..e7d46a7e1583 100644 --- a/include/linux/init_task.h +++ b/include/linux/init_task.h @@ -19,23 +19,9 @@ #include <asm/thread_info.h> -#ifdef CONFIG_SMP -# define INIT_PUSHABLE_TASKS(tsk) \ - .pushable_tasks = PLIST_NODE_INIT(tsk.pushable_tasks, MAX_PRIO), -#else -# define INIT_PUSHABLE_TASKS(tsk) -#endif - extern struct files_struct init_files; extern struct fs_struct init_fs; -#ifdef CONFIG_CPUSETS -#define INIT_CPUSET_SEQ(tsk) \ - .mems_allowed_seq = SEQCNT_ZERO(tsk.mems_allowed_seq), -#else -#define INIT_CPUSET_SEQ(tsk) -#endif - #ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE #define INIT_PREV_CPUTIME(x) .prev_cputime = { \ .lock = __RAW_SPIN_LOCK_UNLOCKED(x.prev_cputime.lock), \ @@ -116,99 +102,12 @@ extern struct group_info init_groups; .pid = &init_struct_pid, \ } -#ifdef CONFIG_AUDITSYSCALL -#define INIT_IDS \ - .loginuid = INVALID_UID, \ - .sessionid = (unsigned int)-1, -#else -#define INIT_IDS -#endif -#ifdef CONFIG_PREEMPT_RCU -#define INIT_TASK_RCU_TREE_PREEMPT() \ - .rcu_blocked_node = NULL, -#else -#define INIT_TASK_RCU_TREE_PREEMPT(tsk) -#endif -#ifdef CONFIG_PREEMPT_RCU -#define INIT_TASK_RCU_PREEMPT(tsk) \ - .rcu_read_lock_nesting = 0, \ - .rcu_read_unlock_special.s = 0, \ - .rcu_node_entry = LIST_HEAD_INIT(tsk.rcu_node_entry), \ - INIT_TASK_RCU_TREE_PREEMPT() -#else -#define INIT_TASK_RCU_PREEMPT(tsk) -#endif -#ifdef CONFIG_TASKS_RCU -#define INIT_TASK_RCU_TASKS(tsk) \ - .rcu_tasks_holdout = false, \ - .rcu_tasks_holdout_list = \ - LIST_HEAD_INIT(tsk.rcu_tasks_holdout_list), \ - .rcu_tasks_idle_cpu = -1, -#else -#define INIT_TASK_RCU_TASKS(tsk) -#endif extern struct cred init_cred; -#ifdef CONFIG_CGROUP_SCHED -# define INIT_CGROUP_SCHED(tsk) \ - .sched_task_group = &root_task_group, -#else -# define INIT_CGROUP_SCHED(tsk) -#endif - -#ifdef CONFIG_PERF_EVENTS -# define INIT_PERF_EVENTS(tsk) \ - .perf_event_mutex = \ - __MUTEX_INITIALIZER(tsk.perf_event_mutex), \ - .perf_event_list = LIST_HEAD_INIT(tsk.perf_event_list), -#else -# define INIT_PERF_EVENTS(tsk) -#endif - -#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN -# define INIT_VTIME(tsk) \ - .vtime_seqcount = SEQCNT_ZERO(tsk.vtime_seqcount), \ - .vtime_snap = 0, \ - .vtime_snap_whence = VTIME_SYS, -#else -# define INIT_VTIME(tsk) -#endif - #define INIT_TASK_COMM "swapper" -#ifdef CONFIG_RT_MUTEXES -# define INIT_RT_MUTEXES(tsk) \ - .pi_waiters = RB_ROOT, \ - .pi_waiters_leftmost = NULL, -#else -# define INIT_RT_MUTEXES(tsk) -#endif - -#ifdef CONFIG_NUMA_BALANCING -# define INIT_NUMA_BALANCING(tsk) \ - .numa_preferred_nid = -1, \ - .numa_group = NULL, \ - .numa_faults = NULL, -#else -# define INIT_NUMA_BALANCING(tsk) -#endif - -#ifdef CONFIG_KASAN -# define INIT_KASAN(tsk) \ - .kasan_depth = 1, -#else -# define INIT_KASAN(tsk) -#endif - -#ifdef CONFIG_THREAD_INFO_IN_TASK -# define INIT_TASK_TI(tsk) \ - .thread_info = INIT_THREAD_INFO(tsk), \ - .stack_refcount = ATOMIC_INIT(1), -#else -# define INIT_TASK_TI(tsk) -#endif /* Attach to the init_task data structure for proper alignment */ #ifdef CONFIG_ARCH_TASK_STRUCT_ON_STACK diff --git a/init/init_task.c b/init/init_task.c index 7a8bc40f13fc..b51c49f580ca 100644 --- a/init/init_task.c +++ b/init/init_task.c @@ -15,7 +15,6 @@ static struct signal_struct init_signals = INIT_SIGNALS(init_signals); static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); - /* * Set up the first task table, touch at your own risk!. Base=0, * limit=0x1fffff (=2MB) @@ -25,20 +24,23 @@ struct task_struct init_task __init_task_data #endif = { - INIT_TASK_TI(init_task) +#ifdef CONFIG_THREAD_INFO_IN_TASK + .thread_info = INIT_THREAD_INFO(init_task), + .stack_refcount = ATOMIC_INIT(1), +#endif .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, + .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 = { + .restart_block = { .fn = do_no_restart_syscall, }, .se = { @@ -49,8 +51,12 @@ struct task_struct init_task .time_slice = RR_TIMESLICE, }, .tasks = LIST_HEAD_INIT(init_task.tasks), - INIT_PUSHABLE_TASKS(init_task) - INIT_CGROUP_SCHED(init_task) +#ifdef CONFIG_SMP + .pushable_tasks = PLIST_NODE_INIT(init_task.pushable_tasks, MAX_PRIO), +#endif +#ifdef CONFIG_CGROUP_SCHED + .sched_task_group = &root_task_group, +#endif .ptraced = LIST_HEAD_INIT(init_task.ptraced), .ptrace_entry = LIST_HEAD_INIT(init_task.ptrace_entry), .real_parent = &init_task, @@ -84,22 +90,53 @@ struct task_struct init_task }, .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) +#ifdef CONFIG_AUDITSYSCALL + .loginuid = INVALID_UID, + .sessionid = (unsigned int)-1, +#endif +#ifdef CONFIG_PERF_EVENTS + .perf_event_mutex = __MUTEX_INITIALIZER(init_task.perf_event_mutex), + .perf_event_list = LIST_HEAD_INIT(init_task.perf_event_list), +#endif +#ifdef CONFIG_PREEMPT_RCU + .rcu_read_lock_nesting = 0, + .rcu_read_unlock_special.s = 0, + .rcu_node_entry = LIST_HEAD_INIT(init_task.rcu_node_entry), +#ifdef CONFIG_PREEMPT_RCU + .rcu_blocked_node = NULL, +#endif +#endif +#ifdef CONFIG_TASKS_RCU + .rcu_tasks_holdout = false, + .rcu_tasks_holdout_list = LIST_HEAD_INIT(init_task.rcu_tasks_holdout_list), + .rcu_tasks_idle_cpu = -1, +#endif +#ifdef CONFIG_CPUSETS + .mems_allowed_seq = SEQCNT_ZERO(init_task.mems_allowed_seq), +#endif +#ifdef CONFIG_RT_MUTEXES + .pi_waiters = RB_ROOT, + .pi_waiters_leftmost = NULL, +#endif + INIT_PREV_CPUTIME(init_task) +#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN + .vtime_seqcount = SEQCNT_ZERO(init_task.vtime_seqcount), + .vtime_snap = 0, + .vtime_snap_whence = VTIME_SYS, +#endif +#ifdef CONFIG_NUMA_BALANCING + .numa_preferred_nid = -1, + .numa_group = NULL, + .numa_faults = NULL, +#endif +#ifdef CONFIG_KASAN + .kasan_depth = 1, +#endif 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) }; - EXPORT_SYMBOL(init_task); /*
