| /kernel/linux/linux-5.10/include/linux/ |
| D | pid.h | 19 * What is struct pid?
21 * A struct pid is the kernel's internal notion of a process identifier.
23 * there are processes attached to it the struct pid lives in a hash
25 * quickly from the numeric pid value. The attached processes may be
26 * quickly accessed by following pointers from struct pid.
29 * problem. The process originally with that pid may have exited and the
30 * pid allocator wrapped, and another process could have come along
31 * and been assigned that pid.
38 * a struct pid is about 64 bytes.
40 * Holding a reference to struct pid solves both of these problems.
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| /kernel/linux/linux-5.10/kernel/ |
| D | pid.c | 3 * 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:
48 struct pid init_struct_pid = {
70 * PID-map pages start out as NULL, they get allocated upon
105 void put_pid(struct pid *pid) in put_pid() argument
109 if (!pid) in put_pid()
112 ns = pid->numbers[pid->level].ns; in put_pid()
113 if (refcount_dec_and_test(&pid->count)) { in put_pid()
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| /kernel/liteos_a/testsuites/unittest/process/basic/process/smoke/ |
| D | process_test_005.cpp | 35 int pid; in ProcessTest002() local
37 pid = fork(); in ProcessTest002()
38 if (pid == 0) { in ProcessTest002()
43 …ICUNIT_ASSERT_WITHIN_EQUAL(pid, 0, 100000, pid); // 100000, assert that function Result is equal t… in ProcessTest002()
45 pid = fork(); in ProcessTest002()
46 if (pid == 0) { in ProcessTest002()
51 …ICUNIT_ASSERT_WITHIN_EQUAL(pid, 0, 100000, pid); // 100000, assert that function Result is equal t… in ProcessTest002()
53 pid = fork(); in ProcessTest002()
54 if (pid == 0) { in ProcessTest002()
59 …ICUNIT_ASSERT_WITHIN_EQUAL(pid, 0, 100000, pid); // 100000, assert that function Result is equal t… in ProcessTest002()
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| D | process_test_038.cpp | 51 pid_t pid, pid1; in ProcessGroup() local
59 pid = fork(); in ProcessGroup()
60 ICUNIT_GOTO_WITHIN_EQUAL(pid, 0, 100000, pid, EXIT); // 100000, assert pid equal to this. in ProcessGroup()
62 if (pid == 0) { in ProcessGroup()
69 ICUNIT_GOTO_WITHIN_EQUAL(pid1, 0, 100000, pid1, EXIT); // 100000, assert pid equal to this. in ProcessGroup()
70 ICUNIT_GOTO_NOT_EQUAL(pid1, pid, pid1, EXIT); in ProcessGroup()
73 Child2(currGid, pid); in ProcessGroup()
87 pid_t pid, pid1; in GroupProcess() local
92 pid = fork(); in GroupProcess()
93 ICUNIT_GOTO_WITHIN_EQUAL(pid, 0, 100000, pid, EXIT); // 100000, assert pid equal to this. in GroupProcess()
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| D | process_test_027.cpp | 38 pid_t pid; in ProcessTest() local
41 pid = fork(); in ProcessTest()
42 ICUNIT_GOTO_WITHIN_EQUAL(pid, 0, 100000, pid, EXIT); // 100000, assert pid equal to this. in ProcessTest()
44 if (pid == 0) { in ProcessTest()
49 ret = waitpid(pid, &status, WNOHANG); in ProcessTest()
52 ret = waitpid(pid, &status, 0); in ProcessTest()
53 ICUNIT_GOTO_EQUAL(ret, pid, ret, EXIT); in ProcessTest()
66 pid_t pid = fork(); in TestCase() local
67 ICUNIT_GOTO_WITHIN_EQUAL(pid, 0, 100000, pid, EXIT); // 100000, assert pid equal to this. in TestCase()
68 if (pid == 0) { in TestCase()
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| D | process_test_017.cpp | 43 printf("%s 22222 pid : %d\n", __FUNCTION__, ret); in ThreadFunc()
58 pid_t pid; in ProcessTest() local
65 pid = fork(); in ProcessTest()
66 ICUNIT_GOTO_WITHIN_EQUAL(pid, 0, 100000, pid, EXIT); // 100000, assert pid equal to this. in ProcessTest()
67 if (pid == 0) { in ProcessTest()
72 g_waitPid = pid; in ProcessTest()
78 ret = waitpid(pid, &status, 0); in ProcessTest()
79 printf("%s 11111 pid : %d\n", __FUNCTION__, ret); in ProcessTest()
80 ICUNIT_GOTO_EQUAL(ret, pid, ret, EXIT); in ProcessTest()
96 pid_t pid = fork(); in TestCase() local
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| /kernel/linux/linux-5.10/include/trace/events/ |
| D | oom.h | 17 __field( pid_t, pid)
23 __entry->pid = task->pid;
28 TP_printk("pid=%d comm=%s oom_score_adj=%hd",
29 __entry->pid, __entry->comm, __entry->oom_score_adj)
75 TP_PROTO(int pid),
77 TP_ARGS(pid),
80 __field(int, pid)
84 __entry->pid = pid;
87 TP_printk("pid=%d", __entry->pid)
91 TP_PROTO(int pid),
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| D | sched.h | 28 __field( pid_t, pid )
33 __entry->pid = t->pid;
36 TP_printk("comm=%s pid=%d", __entry->comm, __entry->pid)
70 __field( pid_t, pid )
78 __entry->pid = p->pid;
84 TP_printk("comm=%s pid=%d prio=%d target_cpu=%03d",
85 __entry->comm, __entry->pid, __entry->prio,
163 __entry->prev_pid = prev->pid;
167 __entry->next_pid = next->pid;
202 __field( pid_t, pid )
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| /kernel/linux/linux-5.10/arch/x86/um/os-Linux/ |
| D | registers.c | 21 int save_i387_registers(int pid, unsigned long *fp_regs) in save_i387_registers() argument
23 if (ptrace(PTRACE_GETFPREGS, pid, 0, fp_regs) < 0) in save_i387_registers()
28 int save_fp_registers(int pid, unsigned long *fp_regs) in save_fp_registers() argument
36 if (ptrace(PTRACE_GETREGSET, pid, NT_X86_XSTATE, &iov) < 0) in save_fp_registers()
41 return save_i387_registers(pid, fp_regs); in save_fp_registers()
44 int restore_i387_registers(int pid, unsigned long *fp_regs) in restore_i387_registers() argument
46 if (ptrace(PTRACE_SETFPREGS, pid, 0, fp_regs) < 0) in restore_i387_registers()
51 int restore_fp_registers(int pid, unsigned long *fp_regs) in restore_fp_registers() argument
58 if (ptrace(PTRACE_SETREGSET, pid, NT_X86_XSTATE, &iov) < 0) in restore_fp_registers()
63 return restore_i387_registers(pid, fp_regs); in restore_fp_registers()
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| /kernel/linux/linux-5.10/arch/powerpc/mm/book3s64/ |
| D | radix_tlb.c | 30 unsigned int pid, in tlbiel_radix_set_isa300() argument
37 rs = ((unsigned long)pid << PPC_BITLSHIFT(31)); in tlbiel_radix_set_isa300()
94 static __always_inline void __tlbiel_pid(unsigned long pid, int set, in __tlbiel_pid() argument
101 rs = ((unsigned long)pid) << PPC_BITLSHIFT(31); in __tlbiel_pid()
110 static __always_inline void __tlbie_pid(unsigned long pid, unsigned long ric) in __tlbie_pid() argument
115 rs = pid << PPC_BITLSHIFT(31); in __tlbie_pid()
152 static __always_inline void __tlbiel_va(unsigned long va, unsigned long pid, in __tlbiel_va() argument
159 rs = pid << PPC_BITLSHIFT(31); in __tlbiel_va()
168 static __always_inline void __tlbie_va(unsigned long va, unsigned long pid, in __tlbie_va() argument
175 rs = pid << PPC_BITLSHIFT(31); in __tlbie_va()
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| /kernel/linux/linux-5.10/tools/testing/selftests/clone3/ |
| D | clone3_set_tid.c | 6 * PID namespace.
47 pid_t pid = -1; in call_clone3_set_tid() local
56 pid = sys_clone3(&args, sizeof(args)); in call_clone3_set_tid()
57 if (pid < 0) { in call_clone3_set_tid()
63 if (pid == 0) { in call_clone3_set_tid()
68 ksft_print_msg("I am the child, my PID is %d (expected %d)\n", in call_clone3_set_tid()
98 if (expected_pid == 0 || expected_pid == pid) { in call_clone3_set_tid()
99 ksft_print_msg("I am the parent (%d). My child's pid is %d\n", in call_clone3_set_tid()
100 getpid(), pid); in call_clone3_set_tid()
103 "Expected child pid %d does not match actual pid %d\n", in call_clone3_set_tid()
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| /kernel/linux/linux-5.10/arch/um/os-Linux/skas/ |
| D | process.c | 26 int is_skas_winch(int pid, int fd, void *data) in is_skas_winch() argument
28 return pid == getpgrp(); in is_skas_winch()
31 static int ptrace_dump_regs(int pid) in ptrace_dump_regs() argument
36 if (ptrace(PTRACE_GETREGS, pid, 0, regs) < 0) in ptrace_dump_regs()
55 void wait_stub_done(int pid) in wait_stub_done() argument
60 CATCH_EINTR(n = waitpid(pid, &status, WUNTRACED | __WALL)); in wait_stub_done()
67 err = ptrace(PTRACE_CONT, pid, 0, 0); in wait_stub_done()
79 err = ptrace_dump_regs(pid); in wait_stub_done()
84 "pid = %d, n = %d, errno = %d, status = 0x%x\n", pid, n, errno, in wait_stub_done()
91 static void get_skas_faultinfo(int pid, struct faultinfo *fi, unsigned long *aux_fp_regs) in get_skas_faultinfo() argument
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| /kernel/linux/linux-5.10/arch/um/os-Linux/ |
| D | start_up.c | 32 int pid = os_getpid(), ppid = getppid(); in ptrace_child() local
38 kill(pid, SIGKILL); in ptrace_child()
40 kill(pid, SIGSTOP); in ptrace_child()
48 if (sc_result == pid) in ptrace_child()
95 int pid, n, status; in start_ptraced_child() local
99 pid = fork(); in start_ptraced_child()
100 if (pid == 0) in start_ptraced_child()
102 else if (pid < 0) in start_ptraced_child()
105 CATCH_EINTR(n = waitpid(pid, &status, WUNTRACED)); in start_ptraced_child()
112 return pid; in start_ptraced_child()
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| /kernel/linux/linux-5.10/drivers/staging/hungtask/ |
| D | hungtask_user.c | 23 pid_t pid; member
37 static void htuser_show_task(int pid) in htuser_show_task() argument
41 p = pid_task(find_vpid(pid), PIDTYPE_PID); in htuser_show_task()
43 pr_err("can not find pid %d\n", pid); in htuser_show_task()
48 pr_info("process %d is frozen\n", pid); in htuser_show_task()
58 static void htuser_list_insert(int pid, int count) in htuser_list_insert() argument
66 userlist[userlist_count].pid = pid; in htuser_list_insert()
73 static int htuser_list_remove(int pid) in htuser_list_remove() argument
79 if (userlist[i].pid == pid) { in htuser_list_remove()
106 htuser_show_task(userlist[i].pid); in htuser_list_update()
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| /kernel/linux/linux-5.10/scripts/gdb/linux/ |
| D | tasks.py | 42 def get_task_by_pid(pid): argument
44 if int(task['pid']) == pid:
50 """Find Linux task by PID and return the task_struct variable.
52 $lx_task_by_pid(PID): Given PID, iterate over all tasks of the target and
53 return that task_struct variable which PID matches."""
58 def invoke(self, pid): argument
59 task = get_task_by_pid(pid)
63 raise gdb.GdbError("No task of PID " + str(pid))
76 gdb.write("{:>10} {:>12} {:>7}\n".format("TASK", "PID", "COMM"))
80 task["pid"].format_string(),
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| /kernel/linux/linux-5.10/tools/testing/selftests/ftrace/test.d/trigger/inter-event/ |
| D | trigger-inter-event-combined-hist.tc | 13 echo 'waking_latency u64 lat pid_t pid' > synthetic_events
20 echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_waking/trigger
21 echo 'hist:keys=pid:waking_lat=common_timestamp.usecs-$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
|
| /kernel/liteos_a/testsuites/unittest/process/basic/process/full/ |
| D | process_test_055.cpp | 38 pid_t pid = fork(); in Child1() local
39 ICUNIT_GOTO_WITHIN_EQUAL(pid, 0, 100000, pid, EXIT); // 100000, assert pid equal to this. in Child1()
40 if (pid == 0) { in Child1()
45 ret = waitid(P_PID, pid, &info, WEXITED); in Child1()
50 ICUNIT_ASSERT_EQUAL(info.si_pid, pid, info.si_pid); in Child1()
58 pid_t pid; in TestCase() local
61 pid = fork(); in TestCase()
63 ICUNIT_GOTO_WITHIN_EQUAL(pid, 0, 100000, pid, EXIT); // 100000, assert pid equal to this. in TestCase()
64 if (pid == 0) { in TestCase()
76 ICUNIT_ASSERT_EQUAL(info.si_pid, pid, info.si_pid); in TestCase()
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| /kernel/liteos_a/testsuites/unittest/libc/posix/mqueue/full/ |
| D | It_posix_queue_206.cpp | 37 int pid; in Child() local
68 pid = fork(); in Child()
69 ICUNIT_GOTO_WITHIN_EQUAL(pid, 0, 100000, pid, EXIT); // 100000, Valid range value of pid. in Child()
71 if (pid == 0) { in Child()
78 ret = waitpid(pid, &status, 0); in Child()
79 ICUNIT_GOTO_EQUAL(ret, pid, ret, EXIT); in Child()
87 pid = fork(); in Child()
88 ICUNIT_GOTO_WITHIN_EQUAL(pid, 0, 100000, pid, EXIT); // 100000, Valid range value of pid. in Child()
89 if (pid == 0) { in Child()
99 ret = waitpid(pid, &status, 0); in Child()
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| /kernel/linux/linux-5.10/fs/f2fs/ |
| D | trace.c | 27 last_io.pid, "----------------", in __print_last_io()
35 static int __file_type(struct inode *inode, pid_t pid) in __file_type() argument
47 else if (pid) in __file_type()
56 pid_t pid = task_pid_nr(current); in f2fs_trace_pid() local
59 set_page_private(page, (unsigned long)pid); in f2fs_trace_pid()
66 p = radix_tree_lookup(&pids, pid); in f2fs_trace_pid()
70 radix_tree_delete(&pids, pid); in f2fs_trace_pid()
72 if (radix_tree_insert(&pids, pid, current)) { in f2fs_trace_pid()
81 pid, current->comm); in f2fs_trace_pid()
90 pid_t pid; in f2fs_trace_ios() local
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| /kernel/linux/linux-5.10/drivers/media/common/b2c2/ |
| D | flexcop-hw-filter.c | 4 * 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
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| /kernel/linux/linux-5.10/tools/perf/scripts/perl/ |
| D | rw-by-pid.pl | 75 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");
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| /kernel/linux/linux-5.10/tools/testing/selftests/cgroup/ |
| D | cgroup_util.c | 259 int pid = strtol(ptr, &ptr, 10); in cg_killall() local
261 if (pid == 0) in cg_killall()
267 if (kill(pid, SIGKILL)) in cg_killall()
292 int cg_enter(const char *cgroup, int pid) in cg_enter() argument
296 snprintf(pidbuf, sizeof(pidbuf), "%d", pid); in cg_enter()
314 int pid, retcode; in cg_run() local
316 pid = fork(); in cg_run()
317 if (pid < 0) { in cg_run()
318 return pid; in cg_run()
319 } else if (pid == 0) { in cg_run()
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| /kernel/linux/linux-5.10/tools/testing/selftests/pidfd/ |
| D | pidfd_test.c | 96 pid_t pid; in test_pidfd_send_signal_exited_fail() local
106 pid = fork(); in test_pidfd_send_signal_exited_fail()
107 if (pid < 0) in test_pidfd_send_signal_exited_fail()
111 if (pid == 0) in test_pidfd_send_signal_exited_fail()
114 snprintf(buf, sizeof(buf), "/proc/%d", pid); in test_pidfd_send_signal_exited_fail()
118 (void)wait_for_pid(pid); in test_pidfd_send_signal_exited_fail()
155 const char *test_name = "pidfd_send_signal signal recycled pid"; in test_pidfd_send_signal_recycled_pid_fail()
167 ksft_test_result_skip("%s test: Unsharing pid namespace not permitted\n", in test_pidfd_send_signal_recycled_pid_fail()
171 ksft_exit_fail_msg("%s test: Failed to unshare pid namespace\n", in test_pidfd_send_signal_recycled_pid_fail()
191 /* pid 1 in new pid namespace */ in test_pidfd_send_signal_recycled_pid_fail()
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| /kernel/linux/linux-5.10/arch/powerpc/platforms/powernv/ |
| D | vas-trace.h | 24 __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;
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| /kernel/linux/linux-5.10/tools/perf/scripts/python/ |
| D | netdev-times.py | 142 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
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