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/linux/kernel/
H A Dpid.c3 * Generic pidhash and scalable, time-bounded PID allocator
9 * pid-structures are backing objects for tasks sharing a given ID to chain
17 * We have a list of bitmap pages, which bitmaps represent the PID space.
23 * Pid namespaces:
49 struct pid init_struct_pid = {
67 * PID-map pages start out as NULL, they get allocated upon
88 void put_pid(struct pid *pid)
92 if (!pid) in put_pid()
95 ns = pid in put_pid()
90 put_pid(struct pid * pid) put_pid() argument
108 struct pid *pid = container_of(rhp, struct pid, rcu); delayed_put_pid() local
112 free_pid(struct pid * pid) free_pid() argument
165 struct pid *pid; alloc_pid() local
342 struct pid *pid; attach_pid() local
353 struct pid **pid_ptr, *pid; __change_pid() local
378 change_pid(struct pid ** pids,struct task_struct * task,enum pid_type type,struct pid * pid) change_pid() argument
414 pid_task(struct pid * pid,enum pid_type type) pid_task() argument
458 struct pid *pid; get_task_pid() local
466 get_pid_task(struct pid * pid,enum pid_type type) get_pid_task() argument
480 struct pid *pid; find_get_pid() local
490 pid_nr_ns(struct pid * pid,struct pid_namespace * ns) pid_nr_ns() argument
504 pid_vnr(struct pid * pid) pid_vnr() argument
546 struct pid *pid; pidfd_get_pid() local
574 struct pid *pid; pidfd_get_task() local
620 pidfd_create(struct pid * pid,unsigned int flags) pidfd_create() argument
646 SYSCALL_DEFINE2(pidfd_open,pid_t,pid,unsigned int,flags) SYSCALL_DEFINE2() argument
868 pidfd_getfd(struct pid * pid,int fd) pidfd_getfd() argument
908 struct pid *pid; SYSCALL_DEFINE3() local
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/linux/fs/
H A Dpidfs.c9 #include <linux/pid.h>
63 .key_offset = offsetof(struct pid, ino),
65 .head_offset = offsetof(struct pid, pidfs_hash),
73 * to struct pid is the inode number.
75 * On 32 bit the 64 bit number assigned to struct pid is split
155 void pidfs_prepare_pid(struct pid *pid) in pidfs_prepare_pid() argument
157 pid->stashed = NULL; in pidfs_prepare_pid()
158 pid->attr = NULL; in pidfs_prepare_pid()
159 pid->ino = 0; in pidfs_prepare_pid()
162 int pidfs_add_pid(struct pid *pid) in pidfs_add_pid() argument
[all …]
/linux/tools/testing/selftests/rlimits/
H A Drlimits-per-userns.c32 pid_t pid = getpid(); in setrlimit_nproc() local
38 warnx("(pid=%d): Setting RLIMIT_NPROC=%ld", pid, n); in setrlimit_nproc()
41 err(EXIT_FAILURE, "(pid=%d): setrlimit(RLIMIT_NPROC)", pid); in setrlimit_nproc()
46 pid_t pid = fork(); in fork_child() local
48 if (pid < 0) in fork_child()
51 if (pid > 0) in fork_child()
52 return pid; in fork_child()
54 pid = getpid(); in fork_child()
56 warnx("(pid=%d): New process starting ...", pid); in fork_child()
59 err(EXIT_FAILURE, "(pid=%d): prctl(PR_SET_PDEATHSIG)", pid); in fork_child()
[all …]
/linux/tools/testing/selftests/powerpc/ptrace/
H A Dptrace-perf-hwbreak.c39 static inline long sys_ptrace(long request, pid_t pid, unsigned long addr, unsigned long data) in sys_ptrace() argument
41 return syscall(__NR_ptrace, request, pid, addr, data); in sys_ptrace()
49 static long ptrace_getregs(pid_t pid, struct pt_regs *result) in ptrace_getregs() argument
51 return sys_ptrace(PTRACE_GETREGS, pid, 0, (unsigned long)result); in ptrace_getregs()
54 static long ptrace_setregs(pid_t pid, struct pt_regs *result) in ptrace_setregs() argument
56 return sys_ptrace(PTRACE_SETREGS, pid, 0, (unsigned long)result); in ptrace_setregs()
59 static long ptrace_cont(pid_t pid, long signal) in ptrace_cont() argument
61 return sys_ptrace(PTRACE_CONT, pid, 0, signal); in ptrace_cont()
64 static long ptrace_singlestep(pid_t pid, long signal) in ptrace_singlestep() argument
66 return sys_ptrace(PTRACE_SINGLESTEP, pid, 0, signal); in ptrace_singlestep()
[all …]
/linux/include/trace/events/
H A Doom.h19 __field( pid_t, pid)
25 __entry->pid = task->pid;
30 TP_printk("pid=%d comm=%s oom_score_adj=%hd",
31 __entry->pid, __entry->comm, __entry->oom_score_adj)
82 __field(int, pid)
94 __entry->pid = task->pid;
105 …TP_printk("pid=%d comm=%s total-vm=%lukB anon-rss=%lukB file-rss:%lukB shmem-rss:%lukB uid=%u pgta…
106 __entry->pid,
119 TP_PROTO(int pid),
121 TP_ARGS(pid),
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H A Dsched.h24 __field( pid_t, pid )
29 __entry->pid = t->pid;
32 TP_printk("comm=%s pid=%d", __get_str(comm), __entry->pid)
149 __field( pid_t, pid )
156 __entry->pid = p->pid;
161 TP_printk("comm=%s pid=%d prio=%d target_cpu=%03d",
162 __entry->comm, __entry->pid, __entry->prio,
241 __entry->prev_pid = prev->pid;
245 __entry->next_pid = next->pid;
280 __field( pid_t, pid )
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/linux/tools/testing/selftests/clone3/
H A Dclone3_set_tid.c6 * PID namespace.
45 pid_t pid = -1; in call_clone3_set_tid() local
54 pid = sys_clone3(&args, sizeof(args)); in call_clone3_set_tid()
55 if (pid < 0) { in call_clone3_set_tid()
61 if (pid == 0) { in call_clone3_set_tid()
66 ksft_print_msg("I am the child, my PID is %d (expected %d)\n", in call_clone3_set_tid()
96 if (expected_pid == 0 || expected_pid == pid) { in call_clone3_set_tid()
97 ksft_print_msg("I am the parent (%d). My child's pid is %d\n", in call_clone3_set_tid()
98 getpid(), pid); in call_clone3_set_tid()
101 "Expected child pid %d does not match actual pid %d\n", in call_clone3_set_tid()
[all …]
H A Dclone3_cap_checkpoint_restore.c6 * PID namespace.
41 pid_t pid = -1; in call_clone3_set_tid() local
49 pid = sys_clone3(&args, sizeof(args)); in call_clone3_set_tid()
50 if (pid < 0) { in call_clone3_set_tid()
55 if (pid == 0) { in call_clone3_set_tid()
59 TH_LOG("I am the child, my PID is %d (expected %d)", getpid(), set_tid[0]); in call_clone3_set_tid()
66 TH_LOG("I am the parent (%d). My child's pid is %d", getpid(), pid); in call_clone3_set_tid()
68 if (waitpid(pid, &status, 0) < 0) { in call_clone3_set_tid()
136 pid_t pid; in TEST() local
148 /* Find the current active PID */ in TEST()
[all …]
/linux/arch/powerpc/mm/book3s64/
H A Dradix_tlb.c29 unsigned int pid, in tlbiel_radix_set_isa300() argument
36 rs = ((unsigned long)pid << PPC_BITLSHIFT(31)); in tlbiel_radix_set_isa300()
100 static __always_inline void __tlbiel_pid(unsigned long pid, int set, in __tlbiel_pid() argument
107 rs = ((unsigned long)pid) << PPC_BITLSHIFT(31); in __tlbiel_pid()
116 static __always_inline void __tlbie_pid(unsigned long pid, unsigned long ric) in __tlbie_pid() argument
121 rs = pid << PPC_BITLSHIFT(31); in __tlbie_pid()
158 static __always_inline void __tlbiel_va(unsigned long va, unsigned long pid, in __tlbiel_va() argument
165 rs = pid << PPC_BITLSHIFT(31); in __tlbiel_va()
174 static __always_inline void __tlbie_va(unsigned long va, unsigned long pid, in __tlbie_va() argument
181 rs = pid << PPC_BITLSHIFT(31); in __tlbie_va()
[all …]
/linux/tools/testing/selftests/powerpc/signal/
H A Dsigreturn_kernel.c35 pid_t pid; in fork_child() local
37 pid = fork(); in fork_child()
38 if (pid == 0) { in fork_child()
43 return pid; in fork_child()
46 static int expect_segv(pid_t pid) in expect_segv() argument
50 waitpid(pid, &child_ret, 0); in expect_segv()
62 pid_t pid; in test_sigreturn_kernel() local
73 pid = fork_child(); in test_sigreturn_kernel()
74 expect_segv(pid); in test_sigreturn_kernel()
78 pid = fork_child(); in test_sigreturn_kernel()
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/linux/kernel/trace/
H A Dpid_list.c90 static inline int pid_split(unsigned int pid, unsigned int *upper1, in pid_split() argument
96 /* In case a bad pid is passed in, then fail */ in pid_split()
97 if (unlikely(pid >= MAX_PID)) in pid_split()
100 *upper1 = (pid >> UPPER1_SHIFT) & UPPER_MASK; in pid_split()
101 *upper2 = (pid >> UPPER2_SHIFT) & UPPER_MASK; in pid_split()
102 *lower = pid & LOWER_MASK; in pid_split()
116 * trace_pid_list_is_set - test if the pid is set in the list
117 * @pid_list: The pid list to test
118 * @pid: The pid to see if set in the list.
120 * Tests if @pid is set in the @pid_list. This is usually called
[all …]
/linux/tools/testing/selftests/pid_namespace/
H A Dpid_max.c41 pid_t pid; in pid_max_cb() local
70 pid = fork(); in pid_max_cb()
71 if (pid == 0) in pid_max_cb()
73 wait_for_pid(pid); in pid_max_cb()
74 if (pid > 500) { in pid_max_cb()
75 fprintf(stderr, "Managed to create pid number beyond limit\n"); in pid_max_cb()
132 fprintf(stderr, "Managed to create process even though ancestor pid namespace had a limit\n"); in pid_max_nested_inner()
138 pid_t pid; in pid_max_nested_inner() local
140 pid = fork(); in pid_max_nested_inner()
141 if (pid < 0) in pid_max_nested_inner()
[all …]
/linux/scripts/gdb/linux/
H A Dtasks.py38 def get_task_by_pid(pid): argument
40 if int(task['pid']) == pid:
46 """Find Linux task by PID and return the task_struct variable.
48 $lx_task_by_pid(PID): Given PID, iterate over all tasks of the target and
49 return that task_struct variable which PID matches."""
54 def invoke(self, pid): argument
55 task = get_task_by_pid(pid)
59 raise gdb.GdbError("No task of PID "
119 invoke(self, pid) global() argument
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/linux/drivers/media/common/b2c2/
H A Dflexcop-hw-filter.c4 * flexcop-hw-filter.c - pid and mac address filtering and control functions
47 u16 pid, u16 mask) in flexcop_pid_group_filter() argument
51 v30c.pid_filter_30c_ext_ind_0_7.Group_PID = pid; in flexcop_pid_group_filter()
61 /* this fancy define reduces the code size of the quite similar PID controlling of
68 vpid.vregname.field = onoff ? pid : 0x1fff; \
75 u16 pid, int onoff) in flexcop_pid_Stream1_PID_ctrl() argument
82 u16 pid, int onoff) in flexcop_pid_Stream2_PID_ctrl() argument
89 u16 pid, int onoff) in flexcop_pid_PCR_PID_ctrl() argument
95 u16 pid, int onoff) in flexcop_pid_PMT_PID_ctrl() argument
101 u16 pid, int onoff) in flexcop_pid_EMM_PID_ctrl() argument
[all …]
/linux/drivers/gpu/drm/amd/amdkfd/
H A Dkfd_smi_events.c43 pid_t pid; member
163 static bool kfd_smi_ev_enabled(pid_t pid, struct kfd_smi_client *client, in kfd_smi_ev_enabled() argument
168 if (pid && client->pid != pid && !client->suser) in kfd_smi_ev_enabled()
174 static void add_event_to_kfifo(pid_t pid, struct kfd_node *dev, in add_event_to_kfifo() argument
182 if (!kfd_smi_ev_enabled(pid, client, smi_event)) in add_event_to_kfifo()
199 static void kfd_smi_event_add(pid_t pid, struct kfd_node *dev, in kfd_smi_event_add() argument
215 add_event_to_kfifo(pid, dev, event, fifo_in, len); in kfd_smi_event_add()
256 if (task_info->task.pid) in kfd_smi_event_update_vmfault()
258 task_info->task.pid, task_info->task.comm)); in kfd_smi_event_update_vmfault()
263 void kfd_smi_event_page_fault_start(struct kfd_node *node, pid_t pid, in kfd_smi_event_page_fault_start() argument
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/linux/tools/perf/scripts/perl/
H A Drw-by-pid.pl75 printf("read counts by pid:\n\n");
77 printf("%6s %20s %10s %10s %10s\n", "pid", "comm",
82 foreach my $pid (sort { ($reads{$b}{bytes_read} || 0) <=>
84 my $comm = $reads{$pid}{comm} || "";
85 my $total_reads = $reads{$pid}{total_reads} || 0;
86 my $bytes_requested = $reads{$pid}{bytes_requested} || 0;
87 my $bytes_read = $reads{$pid}{bytes_read} || 0;
89 printf("%6s %-20s %10s %10s %10s\n", $pid, $comm,
93 printf("\nfailed reads by pid:\n\n");
95 printf("%6s %20s %6s %10s\n", "pid", "comm", "error #", "# errors");
[all …]
/linux/tools/testing/selftests/ftrace/test.d/trigger/inter-event/
H A Dtrigger-inter-event-combined-hist.tc13 echo 'waking_latency u64 lat pid_t pid' > synthetic_events
20 echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_waking/trigger
21 echo 'hist:keys=pid:waking_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).waking_laten…
22 echo 'hist:keys=pid,lat:sort=pid,lat' > events/synthetic/waking_latency/trigger
24 echo 'wakeup_latency u64 lat pid_t pid' >> synthetic_events
25 echo 'hist:keys=pid:ts1=common_timestamp.usecs if comm=="ping"' >> events/sched/sched_wakeup/trigger
28 echo 'waking_plus_wakeup_latency u64 lat; pid_t pid' >> synthetic_events
29 …ho 'hist:keys=pid,lat:sort=pid,lat:ww_lat=$waking_lat+$wakeup_lat:onmatch(synthetic.wakeup_latency…
30 echo 'hist:keys=pid,lat:sort=pid,lat' >> events/synthetic/waking_plus_wakeup_latency/trigger
33 if ! grep -q "pid:" events/synthetic/waking_plus_wakeup_latency/hist; then
/linux/include/uapi/linux/dvb/
H A Ddmx.h60 * @DMX_PES_AUDIO0: first audio PID. Also referred as @DMX_PES_AUDIO.
61 * @DMX_PES_VIDEO0: first video PID. Also referred as @DMX_PES_VIDEO.
62 * @DMX_PES_TELETEXT0: first teletext PID. Also referred as @DMX_PES_TELETEXT.
63 * @DMX_PES_SUBTITLE0: first subtitle PID. Also referred as @DMX_PES_SUBTITLE.
64 * @DMX_PES_PCR0: first Program Clock Reference PID.
67 * @DMX_PES_AUDIO1: second audio PID.
68 * @DMX_PES_VIDEO1: second video PID.
69 * @DMX_PES_TELETEXT1: second teletext PID.
70 * @DMX_PES_SUBTITLE1: second subtitle PID.
71 * @DMX_PES_PCR1: second Program Clock Reference PID.
[all …]
/linux/tools/perf/scripts/python/
H A Dnetdev-times.py142 event['pid'], event['comm']))
232 def irq__softirq_entry(name, context, cpu, sec, nsec, pid, comm, callchain, vec): argument
235 event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, vec)
238 def irq__softirq_exit(name, context, cpu, sec, nsec, pid, comm, callchain, vec): argument
241 event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, vec)
244 def irq__softirq_raise(name, context, cpu, sec, nsec, pid, comm, callchain, vec): argument
247 event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, vec)
250 def irq__irq_handler_entry(name, context, cpu, sec, nsec, pid, comm, argument
252 event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
256 def irq__irq_handler_exit(name, context, cpu, sec, nsec, pid, comm, callchain, irq, ret): argument
[all …]
/linux/tools/testing/selftests/pidfd/
H A Dpidfd_test.c148 pid_t pid; in test_pidfd_send_signal_exited_fail() local
158 pid = fork(); in test_pidfd_send_signal_exited_fail()
159 if (pid < 0) in test_pidfd_send_signal_exited_fail()
163 if (pid == 0) in test_pidfd_send_signal_exited_fail()
166 snprintf(buf, sizeof(buf), "/proc/%d", pid); in test_pidfd_send_signal_exited_fail()
170 ret = wait_for_pid(pid); in test_pidfd_send_signal_exited_fail()
208 const char *test_name = "pidfd_send_signal signal recycled pid"; in test_pidfd_send_signal_recycled_pid_fail()
220 ksft_test_result_skip("%s test: Unsharing pid namespace not permitted\n", in test_pidfd_send_signal_recycled_pid_fail()
224 ksft_exit_fail_msg("%s test: Failed to unshare pid namespace\n", in test_pidfd_send_signal_recycled_pid_fail()
244 /* pid 1 in new pid namespace */ in test_pidfd_send_signal_recycled_pid_fail()
[all …]
/linux/arch/um/os-Linux/
H A Dstart_up.c44 int pid = os_getpid(), ppid = getppid(); in ptrace_child() local
50 kill(pid, SIGKILL); in ptrace_child()
52 kill(pid, SIGSTOP); in ptrace_child()
60 if (sc_result == pid) in ptrace_child()
107 int pid, n, status; in start_ptraced_child() local
111 pid = fork(); in start_ptraced_child()
112 if (pid == 0) in start_ptraced_child()
114 else if (pid < 0) in start_ptraced_child()
117 CATCH_EINTR(n = waitpid(pid, &status, WUNTRACED)); in start_ptraced_child()
124 return pid; in start_ptraced_child()
[all …]
/linux/tools/testing/selftests/cgroup/lib/
H A Dcgroup_util.c337 int pid = strtol(ptr, &ptr, 10); in cg_destroy()
339 if (pid == 0) in cg_destroy()
345 if (kill(pid, SIGKILL)) in cg_destroy()
372 int cg_enter(const char *cgroup, int pid) in cg_run()
376 snprintf(pidbuf, sizeof(pidbuf), "%d", pid); in cg_run()
394 int pid, retcode; in clone_into_cgroup()
396 pid = fork(); in clone_into_cgroup()
397 if (pid < 0) { in clone_into_cgroup() local
398 return pid; in clone_into_cgroup()
399 } else if (pid in clone_into_cgroup()
316 int pid = strtol(ptr, &ptr, 10); cg_killall() local
351 cg_enter(const char * cgroup,int pid) cg_enter() argument
373 int pid, retcode; cg_run() local
422 clone_reap(pid_t pid,int options) clone_reap() argument
472 pid_t pid; clone_into_cgroup_run_nowait() local
490 int pid; cg_run_nowait() local
537 proc_read_text(int pid,bool thread,const char * item,char * buf,size_t size) proc_read_text() argument
552 proc_read_strstr(int pid,bool thread,const char * item,const char * needle) proc_read_strstr() argument
565 pid_t pid; clone_into_cgroup_run_wait() local
[all...]
/linux/tools/testing/selftests/cgroup/
H A Dcgroup_util.c
/linux/tools/perf/util/
H A Dthread_map.c34 struct perf_thread_map *thread_map__new_by_pid(pid_t pid) in thread_map__new_by_pid() argument
42 sprintf(name, "/proc/%d/task", pid); in thread_map__new_by_pid()
96 pid_t pid = strtol(dirent->d_name, &end, 10); in thread_map__new_all_cpus() local
101 snprintf(path, sizeof(path), "/proc/%d/task", pid); in thread_map__new_all_cpus()
104 pr_debug("scandir for %d returned empty, skipping\n", pid); in thread_map__new_all_cpus()
151 struct perf_thread_map *thread_map__new(pid_t pid, pid_t tid) in thread_map__new() argument
153 if (pid != -1) in thread_map__new()
154 return thread_map__new_by_pid(pid); in thread_map__new()
166 pid_t pid, prev_pid = INT_MAX; in thread_map__new_by_pid_str() local
174 pid = strtol(pos->s, NULL, 10); in thread_map__new_by_pid_str()
[all …]
/linux/arch/powerpc/platforms/powernv/
H A Dvas-trace.h24 __field(int, pid)
34 __entry->pid = tsk->pid;
42 TP_printk("pid=%d, vasid=%d, cop=%d, lpid=%d, pid=%d, tid=%d",
43 __entry->pid, __entry->vasid, __entry->cop,
59 __field(int, pid)
68 __entry->pid = tsk->pid;
75 TP_printk("pid=%d, vasid=%d, cop=%d, lpid=%d, pidr=%d",
76 __entry->pid, __entry->vasid, __entry->cop,
90 __field(int, pid)
97 __entry->pid = tsk->pid;
[all …]

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