Lines Matching refs:task
208 static int get_task_root(struct task_struct *task, struct path *root) in get_task_root() argument
212 task_lock(task); in get_task_root()
213 if (task->fs) { in get_task_root()
214 get_fs_root(task->fs, root); in get_task_root()
217 task_unlock(task); in get_task_root()
223 struct task_struct *task = get_proc_task(d_inode(dentry)); in proc_cwd_link() local
226 if (task) { in proc_cwd_link()
227 task_lock(task); in proc_cwd_link()
228 if (task->fs) { in proc_cwd_link()
229 get_fs_pwd(task->fs, path); in proc_cwd_link()
232 task_unlock(task); in proc_cwd_link()
233 put_task_struct(task); in proc_cwd_link()
240 struct task_struct *task = get_proc_task(d_inode(dentry)); in proc_root_link() local
243 if (task) { in proc_root_link()
244 result = get_task_root(task, path); in proc_root_link()
245 put_task_struct(task); in proc_root_link()
422 struct pid *pid, struct task_struct *task) in proc_pid_wchan() argument
427 if (!ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS)) in proc_pid_wchan()
430 wchan = get_wchan(task); in proc_pid_wchan()
442 static int lock_trace(struct task_struct *task) in lock_trace() argument
444 int err = down_read_killable(&task->signal->exec_update_lock); in lock_trace()
447 if (!ptrace_may_access(task, PTRACE_MODE_ATTACH_FSCREDS)) { in lock_trace()
448 up_read(&task->signal->exec_update_lock); in lock_trace()
454 static void unlock_trace(struct task_struct *task) in unlock_trace() argument
456 up_read(&task->signal->exec_update_lock); in unlock_trace()
464 struct pid *pid, struct task_struct *task) in proc_pid_stack() argument
488 err = lock_trace(task); in proc_pid_stack()
492 nr_entries = stack_trace_save_tsk(task, entries, in proc_pid_stack()
499 unlock_trace(task); in proc_pid_stack()
512 struct pid *pid, struct task_struct *task) in proc_pid_schedstat() argument
518 (unsigned long long)task->se.sum_exec_runtime, in proc_pid_schedstat()
519 (unsigned long long)task->sched_info.run_delay, in proc_pid_schedstat()
520 task->sched_info.pcount); in proc_pid_schedstat()
531 struct task_struct *task = get_proc_task(inode); in lstats_show_proc() local
533 if (!task) in lstats_show_proc()
537 struct latency_record *lr = &task->latency_record[i]; in lstats_show_proc()
553 put_task_struct(task); in lstats_show_proc()
565 struct task_struct *task = get_proc_task(file_inode(file)); in lstats_write() local
567 if (!task) in lstats_write()
569 clear_tsk_latency_tracing(task); in lstats_write()
570 put_task_struct(task); in lstats_write()
586 struct pid *pid, struct task_struct *task) in proc_oom_score() argument
592 badness = oom_badness(task, totalpages); in proc_oom_score()
632 struct pid *pid, struct task_struct *task) in proc_pid_limits() argument
639 if (!lock_task_sighand(task, &flags)) in proc_pid_limits()
641 memcpy(rlim, task->signal->rlim, sizeof(struct rlimit) * RLIM_NLIMITS); in proc_pid_limits()
642 unlock_task_sighand(task, &flags); in proc_pid_limits()
676 struct pid *pid, struct task_struct *task) in proc_pid_syscall() argument
682 res = lock_trace(task); in proc_pid_syscall()
686 if (task_current_syscall(task, &info)) in proc_pid_syscall()
697 unlock_trace(task); in proc_pid_syscall()
710 struct task_struct *task; in proc_fd_access_allowed() local
716 task = get_proc_task(inode); in proc_fd_access_allowed()
717 if (task) { in proc_fd_access_allowed()
718 allowed = ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS); in proc_fd_access_allowed()
719 put_task_struct(task); in proc_fd_access_allowed()
746 struct task_struct *task, in has_pid_permissions() argument
755 return ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS); in has_pid_permissions()
761 return ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS); in has_pid_permissions()
769 struct task_struct *task; in proc_pid_permission() local
772 task = get_proc_task(inode); in proc_pid_permission()
773 if (!task) in proc_pid_permission()
775 has_perms = has_pid_permissions(fs_info, task, HIDEPID_NO_ACCESS); in proc_pid_permission()
776 put_task_struct(task); in proc_pid_permission()
805 struct task_struct *task; in proc_single_show() local
808 task = get_pid_task(pid, PIDTYPE_PID); in proc_single_show()
809 if (!task) in proc_single_show()
812 ret = PROC_I(inode)->op.proc_show(m, ns, pid, task); in proc_single_show()
814 put_task_struct(task); in proc_single_show()
839 struct task_struct *task = get_proc_task(inode); in proc_mem_open() local
842 if (!task) in proc_mem_open()
845 mm = mm_access(task, mode | PTRACE_MODE_FSCREDS); in proc_mem_open()
846 put_task_struct(task); in proc_mem_open()
879 struct task_struct *task; in proc_mem_foll_force() local
886 task = get_proc_task(file_inode(file)); in proc_mem_foll_force()
887 if (task) { in proc_mem_foll_force()
888 ptrace_active = READ_ONCE(task->ptrace) && in proc_mem_foll_force()
889 READ_ONCE(task->mm) == mm && in proc_mem_foll_force()
890 READ_ONCE(task->parent) == current; in proc_mem_foll_force()
891 put_task_struct(task); in proc_mem_foll_force()
1106 struct task_struct *task = get_proc_task(file_inode(file)); in oom_adj_read() local
1111 if (!task) in oom_adj_read()
1113 if (task->signal->oom_score_adj == OOM_SCORE_ADJ_MAX) in oom_adj_read()
1116 oom_adj = (task->signal->oom_score_adj * -OOM_DISABLE) / in oom_adj_read()
1118 put_task_struct(task); in oom_adj_read()
1128 struct task_struct *task; in __set_oom_adj() local
1131 task = get_proc_task(file_inode(file)); in __set_oom_adj()
1132 if (!task) in __set_oom_adj()
1137 if (oom_adj < task->signal->oom_score_adj && in __set_oom_adj()
1147 current->comm, task_pid_nr(current), task_pid_nr(task), in __set_oom_adj()
1148 task_pid_nr(task)); in __set_oom_adj()
1150 if ((short)oom_adj < task->signal->oom_score_adj_min && in __set_oom_adj()
1162 if (!task->vfork_done) { in __set_oom_adj()
1163 struct task_struct *p = find_lock_task_mm(task); in __set_oom_adj()
1174 task->signal->oom_score_adj = oom_adj; in __set_oom_adj()
1176 task->signal->oom_score_adj_min = (short)oom_adj; in __set_oom_adj()
1177 trace_oom_score_adj_update(task); in __set_oom_adj()
1184 if (same_thread_group(task, p)) in __set_oom_adj()
1204 put_task_struct(task); in __set_oom_adj()
1264 struct task_struct *task = get_proc_task(file_inode(file)); in oom_score_adj_read() local
1269 if (!task) in oom_score_adj_read()
1271 oom_score_adj = task->signal->oom_score_adj; in oom_score_adj_read()
1272 put_task_struct(task); in oom_score_adj_read()
1317 struct task_struct *task = get_proc_task(inode); in proc_loginuid_read() local
1321 if (!task) in proc_loginuid_read()
1325 audit_get_loginuid(task))); in proc_loginuid_read()
1326 put_task_struct(task); in proc_loginuid_read()
1383 struct task_struct *task = get_proc_task(inode); in proc_sessionid_read() local
1387 if (!task) in proc_sessionid_read()
1390 audit_get_sessionid(task)); in proc_sessionid_read()
1391 put_task_struct(task); in proc_sessionid_read()
1405 struct task_struct *task = get_proc_task(file_inode(file)); in proc_fault_inject_read() local
1410 if (!task) in proc_fault_inject_read()
1412 make_it_fail = task->make_it_fail; in proc_fault_inject_read()
1413 put_task_struct(task); in proc_fault_inject_read()
1423 struct task_struct *task; in proc_fault_inject_write() local
1441 task = get_proc_task(file_inode(file)); in proc_fault_inject_write()
1442 if (!task) in proc_fault_inject_write()
1444 task->make_it_fail = make_it_fail; in proc_fault_inject_write()
1445 put_task_struct(task); in proc_fault_inject_write()
1459 struct task_struct *task; in proc_fail_nth_write() local
1467 task = get_proc_task(file_inode(file)); in proc_fail_nth_write()
1468 if (!task) in proc_fail_nth_write()
1470 task->fail_nth = n; in proc_fail_nth_write()
1471 put_task_struct(task); in proc_fail_nth_write()
1479 struct task_struct *task; in proc_fail_nth_read() local
1483 task = get_proc_task(file_inode(file)); in proc_fail_nth_read()
1484 if (!task) in proc_fail_nth_read()
1486 len = snprintf(numbuf, sizeof(numbuf), "%u\n", task->fail_nth); in proc_fail_nth_read()
1487 put_task_struct(task); in proc_fail_nth_read()
1782 struct task_struct *task; in proc_exe_link() local
1785 task = get_proc_task(d_inode(dentry)); in proc_exe_link()
1786 if (!task) in proc_exe_link()
1788 exe_file = get_task_exe_file(task); in proc_exe_link()
1789 put_task_struct(task); in proc_exe_link()
1875 void task_dump_owner(struct task_struct *task, umode_t mode, in task_dump_owner() argument
1885 if (unlikely(task->flags & PF_KTHREAD)) { in task_dump_owner()
1893 cred = __task_cred(task); in task_dump_owner()
1908 task_lock(task); in task_dump_owner()
1909 mm = task->mm; in task_dump_owner()
1927 task_unlock(task); in task_dump_owner()
1945 struct task_struct *task, umode_t mode) in proc_pid_make_inode() argument
1967 pid = get_task_pid(task, PIDTYPE_PID); in proc_pid_make_inode()
1974 task_dump_owner(task, 0, &inode->i_uid, &inode->i_gid); in proc_pid_make_inode()
1975 security_task_to_inode(task, inode); in proc_pid_make_inode()
1998 struct task_struct *task, umode_t mode) in proc_pid_make_base_inode() argument
2004 inode = proc_pid_make_inode(sb, task, mode); in proc_pid_make_base_inode()
2023 struct task_struct *task; in pid_getattr() local
2030 task = pid_task(proc_pid(inode), PIDTYPE_PID); in pid_getattr()
2031 if (task) { in pid_getattr()
2032 if (!has_pid_permissions(fs_info, task, HIDEPID_INVISIBLE)) { in pid_getattr()
2040 task_dump_owner(task, inode->i_mode, &stat->uid, &stat->gid); in pid_getattr()
2051 void pid_update_inode(struct task_struct *task, struct inode *inode) in pid_update_inode() argument
2053 task_dump_owner(task, inode->i_mode, &inode->i_uid, &inode->i_gid); in pid_update_inode()
2056 security_task_to_inode(task, inode); in pid_update_inode()
2068 struct task_struct *task; in pid_revalidate() local
2075 task = pid_task(proc_pid(inode), PIDTYPE_PID); in pid_revalidate()
2077 if (task) { in pid_revalidate()
2078 pid_update_inode(task, inode); in pid_revalidate()
2122 instantiate_t instantiate, struct task_struct *task, const void *ptr) in proc_fill_cache() argument
2138 res = instantiate(child, task, ptr); in proc_fill_cache()
2204 struct task_struct *task; in map_files_d_revalidate() local
2212 task = get_proc_task(inode); in map_files_d_revalidate()
2213 if (!task) in map_files_d_revalidate()
2216 mm = mm_access(task, PTRACE_MODE_READ_FSCREDS); in map_files_d_revalidate()
2232 task_dump_owner(task, 0, &inode->i_uid, &inode->i_gid); in map_files_d_revalidate()
2234 security_task_to_inode(task, inode); in map_files_d_revalidate()
2239 put_task_struct(task); in map_files_d_revalidate()
2254 struct task_struct *task; in map_files_get_link() local
2259 task = get_proc_task(d_inode(dentry)); in map_files_get_link()
2260 if (!task) in map_files_get_link()
2263 mm = get_task_mm(task); in map_files_get_link()
2264 put_task_struct(task); in map_files_get_link()
2324 struct task_struct *task, const void *ptr) in proc_map_files_instantiate() argument
2330 inode = proc_pid_make_inode(dentry->d_sb, task, S_IFLNK | in proc_map_files_instantiate()
2351 struct task_struct *task; in proc_map_files_lookup() local
2356 task = get_proc_task(dir); in proc_map_files_lookup()
2357 if (!task) in proc_map_files_lookup()
2361 if (!ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS)) in proc_map_files_lookup()
2368 mm = get_task_mm(task); in proc_map_files_lookup()
2382 result = proc_map_files_instantiate(dentry, task, in proc_map_files_lookup()
2390 put_task_struct(task); in proc_map_files_lookup()
2405 struct task_struct *task; in proc_map_files_readdir() local
2416 task = get_proc_task(file_inode(file)); in proc_map_files_readdir()
2417 if (!task) in proc_map_files_readdir()
2421 if (!ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS)) in proc_map_files_readdir()
2428 mm = get_task_mm(task); in proc_map_files_readdir()
2482 task, in proc_map_files_readdir()
2489 put_task_struct(task); in proc_map_files_readdir()
2504 struct task_struct *task; member
2512 tp->task = get_pid_task(tp->pid, PIDTYPE_PID); in timers_start()
2513 if (!tp->task) in timers_start()
2517 return seq_hlist_start_rcu(&tp->task->signal->posix_timers, *pos); in timers_start()
2524 return seq_hlist_next_rcu(v, &tp->task->signal->posix_timers, pos); in timers_next()
2531 if (tp->task) { in timers_stop()
2532 put_task_struct(tp->task); in timers_stop()
2533 tp->task = NULL; in timers_stop()
2688 struct task_struct *task, const void *ptr) in proc_pident_instantiate() argument
2694 inode = proc_pid_make_inode(dentry->d_sb, task, p->mode); in proc_pident_instantiate()
2706 pid_update_inode(task, inode); in proc_pident_instantiate()
2715 struct task_struct *task = get_proc_task(dir); in proc_pident_lookup() local
2718 if (!task) in proc_pident_lookup()
2729 res = proc_pident_instantiate(dentry, task, p); in proc_pident_lookup()
2733 put_task_struct(task); in proc_pident_lookup()
2741 struct task_struct *task = get_proc_task(file_inode(file)); in proc_pident_readdir() local
2744 if (!task) in proc_pident_readdir()
2755 proc_pident_instantiate, task, p)) in proc_pident_readdir()
2760 put_task_struct(task); in proc_pident_readdir()
2778 struct task_struct *task = get_proc_task(inode); in proc_pid_attr_read() local
2780 if (!task) in proc_pid_attr_read()
2783 length = security_getprocattr(task, PROC_I(inode)->op.lsmid, in proc_pid_attr_read()
2786 put_task_struct(task); in proc_pid_attr_read()
2797 struct task_struct *task; in proc_pid_attr_write() local
2806 task = pid_task(proc_pid(inode), PIDTYPE_PID); in proc_pid_attr_write()
2807 if (!task) { in proc_pid_attr_write()
2812 if (current != task) { in proc_pid_attr_write()
2953 struct task_struct *task = get_proc_task(file_inode(file)); in proc_coredump_filter_read() local
2959 if (!task) in proc_coredump_filter_read()
2963 mm = get_task_mm(task); in proc_coredump_filter_read()
2972 put_task_struct(task); in proc_coredump_filter_read()
2982 struct task_struct *task; in proc_coredump_filter_write() local
2994 task = get_proc_task(file_inode(file)); in proc_coredump_filter_write()
2995 if (!task) in proc_coredump_filter_write()
2998 mm = get_task_mm(task); in proc_coredump_filter_write()
3012 put_task_struct(task); in proc_coredump_filter_write()
3027 static int do_io_accounting(struct task_struct *task, struct seq_file *m, int whole) in do_io_accounting() argument
3032 result = down_read_killable(&task->signal->exec_update_lock); in do_io_accounting()
3036 if (!ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS)) { in do_io_accounting()
3042 struct signal_struct *sig = task->signal; in do_io_accounting()
3060 acct = task->ioac; in do_io_accounting()
3081 up_read(&task->signal->exec_update_lock); in do_io_accounting()
3086 struct pid *pid, struct task_struct *task) in proc_tid_io_accounting() argument
3088 return do_io_accounting(task, m, 0); in proc_tid_io_accounting()
3092 struct pid *pid, struct task_struct *task) in proc_tgid_io_accounting() argument
3094 return do_io_accounting(task, m, 1); in proc_tgid_io_accounting()
3103 struct task_struct *task; in proc_id_map_open() local
3107 task = get_proc_task(inode); in proc_id_map_open()
3108 if (task) { in proc_id_map_open()
3110 ns = get_user_ns(task_cred_xxx(task, user_ns)); in proc_id_map_open()
3112 put_task_struct(task); in proc_id_map_open()
3181 struct task_struct *task; in proc_setgroups_open() local
3185 task = get_proc_task(inode); in proc_setgroups_open()
3186 if (task) { in proc_setgroups_open()
3188 ns = get_user_ns(task_cred_xxx(task, user_ns)); in proc_setgroups_open()
3190 put_task_struct(task); in proc_setgroups_open()
3231 struct pid *pid, struct task_struct *task) in proc_pid_personality() argument
3233 int err = lock_trace(task); in proc_pid_personality()
3235 seq_printf(m, "%08x\n", task->personality); in proc_pid_personality()
3236 unlock_trace(task); in proc_pid_personality()
3243 struct pid *pid, struct task_struct *task) in proc_pid_patch_state() argument
3245 seq_printf(m, "%d\n", task->patch_state); in proc_pid_patch_state()
3252 struct pid *pid, struct task_struct *task) in proc_pid_ksm_merging_pages() argument
3256 mm = get_task_mm(task); in proc_pid_ksm_merging_pages()
3265 struct pid *pid, struct task_struct *task) in proc_pid_ksm_stat() argument
3270 mm = get_task_mm(task); in proc_pid_ksm_stat()
3295 struct pid *pid, struct task_struct *task) in proc_stack_depth() argument
3298 (task->prev_lowest_stack & (THREAD_SIZE - 1)); in proc_stack_depth()
3300 (task->lowest_stack & (THREAD_SIZE - 1)); in proc_stack_depth()
3487 struct task_struct *task, const void *ptr) in proc_pid_instantiate() argument
3491 inode = proc_pid_make_base_inode(dentry->d_sb, task, in proc_pid_instantiate()
3501 pid_update_inode(task, inode); in proc_pid_instantiate()
3508 struct task_struct *task; in proc_pid_lookup() local
3521 task = find_task_by_pid_ns(tgid, ns); in proc_pid_lookup()
3522 if (task) in proc_pid_lookup()
3523 get_task_struct(task); in proc_pid_lookup()
3525 if (!task) in proc_pid_lookup()
3530 if (!has_pid_permissions(fs_info, task, HIDEPID_NO_ACCESS)) in proc_pid_lookup()
3534 result = proc_pid_instantiate(dentry, task, NULL); in proc_pid_lookup()
3536 put_task_struct(task); in proc_pid_lookup()
3547 struct task_struct *task; member
3553 if (iter.task) in next_tgid()
3554 put_task_struct(iter.task); in next_tgid()
3557 iter.task = NULL; in next_tgid()
3561 iter.task = pid_task(pid, PIDTYPE_TGID); in next_tgid()
3562 if (!iter.task) { in next_tgid()
3566 get_task_struct(iter.task); in next_tgid()
3598 iter.task = NULL; in proc_pid_readdir()
3600 iter.task; in proc_pid_readdir()
3606 if (!has_pid_permissions(fs_info, iter.task, HIDEPID_INVISIBLE)) in proc_pid_readdir()
3612 proc_pid_instantiate, iter.task, NULL)) { in proc_pid_readdir()
3613 put_task_struct(iter.task); in proc_pid_readdir()
3637 struct task_struct *task; in proc_tid_comm_permission() local
3639 task = get_proc_task(inode); in proc_tid_comm_permission()
3640 if (!task) in proc_tid_comm_permission()
3642 is_same_tgroup = same_thread_group(current, task); in proc_tid_comm_permission()
3643 put_task_struct(task); in proc_tid_comm_permission()
3790 struct task_struct *task, const void *ptr) in proc_task_instantiate() argument
3793 inode = proc_pid_make_base_inode(dentry->d_sb, task, in proc_task_instantiate()
3803 pid_update_inode(task, inode); in proc_task_instantiate()
3810 struct task_struct *task; in proc_task_lookup() local
3827 task = find_task_by_pid_ns(tid, ns); in proc_task_lookup()
3828 if (task) in proc_task_lookup()
3829 get_task_struct(task); in proc_task_lookup()
3831 if (!task) in proc_task_lookup()
3833 if (!same_thread_group(leader, task)) in proc_task_lookup()
3836 result = proc_task_instantiate(dentry, task, NULL); in proc_task_lookup()
3838 put_task_struct(task); in proc_task_lookup()
3860 struct task_struct *pos, *task; in first_tid() local
3867 task = pid_task(pid, PIDTYPE_PID); in first_tid()
3868 if (!task) in first_tid()
3874 if (pos && same_thread_group(pos, task)) in first_tid()
3879 if (nr >= get_nr_threads(task)) in first_tid()
3885 for_each_thread(task, pos) { in first_tid()
3923 struct task_struct *task; in proc_task_readdir() local
3939 for (task = first_tid(proc_pid(inode), tid, ctx->pos - 2, ns); in proc_task_readdir()
3940 task; in proc_task_readdir()
3941 task = next_tid(task), ctx->pos++) { in proc_task_readdir()
3945 tid = task_pid_nr_ns(task, ns); in proc_task_readdir()
3950 proc_task_instantiate, task, NULL)) { in proc_task_readdir()
3954 put_task_struct(task); in proc_task_readdir()