| /kernel/trace/ |
| D | ring_buffer.c | 271 #define for_each_buffer_cpu(buffer, cpu) \ argument
272 for_each_cpu(cpu, buffer->cpumask)
440 struct ring_buffer *buffer; member
530 int ring_buffer_wait(struct ring_buffer *buffer, int cpu, bool full) in ring_buffer_wait() argument
543 work = &buffer->irq_work; in ring_buffer_wait()
547 if (!cpumask_test_cpu(cpu, buffer->cpumask)) in ring_buffer_wait()
549 cpu_buffer = buffer->buffers[cpu]; in ring_buffer_wait()
590 if (cpu == RING_BUFFER_ALL_CPUS && !ring_buffer_empty(buffer)) in ring_buffer_wait()
594 !ring_buffer_empty_cpu(buffer, cpu)) { in ring_buffer_wait()
634 int ring_buffer_poll_wait(struct ring_buffer *buffer, int cpu, in ring_buffer_poll_wait() argument
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| D | trace.c | 310 struct ring_buffer *buffer, in call_filter_check_discard() argument
315 __trace_event_discard_commit(buffer, event); in call_filter_check_discard()
539 parser.buffer[parser.idx] = 0; in trace_pid_write()
542 if (kstrtoul(parser.buffer, 0, &val)) in trace_pid_write()
579 if (!buf->buffer) in buffer_ftrace_now()
582 ts = ring_buffer_time_stamp(buf->buffer, cpu); in buffer_ftrace_now()
583 ring_buffer_normalize_time_stamp(buf->buffer, cpu, &ts); in buffer_ftrace_now()
718 static void __ftrace_trace_stack(struct ring_buffer *buffer,
722 struct ring_buffer *buffer,
727 static inline void __ftrace_trace_stack(struct ring_buffer *buffer, in __ftrace_trace_stack() argument
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| D | ring_buffer_benchmark.c | 30 static struct ring_buffer *buffer; variable
89 event = ring_buffer_consume(buffer, cpu, &ts, NULL); in read_event()
114 bpage = ring_buffer_alloc_read_page(buffer, cpu); in read_page()
118 ret = ring_buffer_read_page(buffer, &bpage, PAGE_SIZE, cpu, 1); in read_page()
173 ring_buffer_free_read_page(buffer, bpage); in read_page()
252 event = ring_buffer_lock_reserve(buffer, 10); in ring_buffer_producer()
259 ring_buffer_unlock_commit(buffer, event); in ring_buffer_producer()
297 entries = ring_buffer_entries(buffer); in ring_buffer_producer()
298 overruns = ring_buffer_overruns(buffer); in ring_buffer_producer()
402 ring_buffer_reset(buffer); in ring_buffer_producer_thread()
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| D | trace_mmiotrace.c | 124 unsigned long over = ring_buffer_overruns(iter->trace_buffer->buffer); in count_overruns()
298 struct ring_buffer *buffer = tr->trace_buffer.buffer; in __trace_mmiotrace_rw() local
303 event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_RW, in __trace_mmiotrace_rw()
312 if (!call_filter_check_discard(call, entry, buffer, event)) in __trace_mmiotrace_rw()
313 trace_buffer_unlock_commit(tr, buffer, event, 0, pc); in __trace_mmiotrace_rw()
328 struct ring_buffer *buffer = tr->trace_buffer.buffer; in __trace_mmiotrace_map() local
333 event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_MAP, in __trace_mmiotrace_map()
342 if (!call_filter_check_discard(call, entry, buffer, event)) in __trace_mmiotrace_map()
343 trace_buffer_unlock_commit(tr, buffer, event, 0, pc); in __trace_mmiotrace_map()
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| D | trace.h | 176 struct ring_buffer *buffer; member
590 trace_buffer_lock_reserve(struct ring_buffer *buffer,
602 void __buffer_unlock_commit(struct ring_buffer *buffer,
672 void ftrace_trace_userstack(struct ring_buffer *buffer, unsigned long flags,
678 static inline void ftrace_trace_userstack(struct ring_buffer *buffer, in ftrace_trace_userstack() argument
747 int trace_array_printk_buf(struct ring_buffer *buffer,
922 char *buffer; member
1109 struct ring_buffer *buffer,
1113 struct ring_buffer *buffer,
1119 struct ring_buffer *buffer, in trace_buffer_unlock_commit() argument
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| D | trace_branch.c | 37 struct ring_buffer *buffer; in probe_likely_condition() local
62 buffer = tr->trace_buffer.buffer; in probe_likely_condition()
63 event = trace_buffer_lock_reserve(buffer, TRACE_BRANCH, in probe_likely_condition()
83 if (!call_filter_check_discard(call, entry, buffer, event)) in probe_likely_condition()
84 __buffer_unlock_commit(buffer, event); in probe_likely_condition()
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| D | trace_syscalls.c | 314 struct ring_buffer *buffer; in ftrace_syscall_enter() local
341 buffer = tr->trace_buffer.buffer; in ftrace_syscall_enter()
342 event = trace_buffer_lock_reserve(buffer, in ftrace_syscall_enter()
351 event_trigger_unlock_commit(trace_file, buffer, event, entry, in ftrace_syscall_enter()
362 struct ring_buffer *buffer; in ftrace_syscall_exit() local
386 buffer = tr->trace_buffer.buffer; in ftrace_syscall_exit()
387 event = trace_buffer_lock_reserve(buffer, in ftrace_syscall_exit()
397 event_trigger_unlock_commit(trace_file, buffer, event, entry, in ftrace_syscall_exit()
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| D | trace_sched_wakeup.c | 377 struct ring_buffer *buffer = tr->trace_buffer.buffer; in tracing_sched_switch_trace() local
381 event = trace_buffer_lock_reserve(buffer, TRACE_CTX, in tracing_sched_switch_trace()
394 if (!call_filter_check_discard(call, entry, buffer, event)) in tracing_sched_switch_trace()
395 trace_buffer_unlock_commit(tr, buffer, event, flags, pc); in tracing_sched_switch_trace()
407 struct ring_buffer *buffer = tr->trace_buffer.buffer; in tracing_sched_wakeup_trace() local
409 event = trace_buffer_lock_reserve(buffer, TRACE_WAKE, in tracing_sched_wakeup_trace()
422 if (!call_filter_check_discard(call, entry, buffer, event)) in tracing_sched_wakeup_trace()
423 trace_buffer_unlock_commit(tr, buffer, event, flags, pc); in tracing_sched_wakeup_trace()
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| D | trace_functions_graph.c | 356 struct ring_buffer *buffer = tr->trace_buffer.buffer; in __trace_graph_entry() local
359 event = trace_buffer_lock_reserve(buffer, TRACE_GRAPH_ENT, in __trace_graph_entry()
365 if (!call_filter_check_discard(call, entry, buffer, event)) in __trace_graph_entry()
366 __buffer_unlock_commit(buffer, event); in __trace_graph_entry()
467 struct ring_buffer *buffer = tr->trace_buffer.buffer; in __trace_graph_return() local
470 event = trace_buffer_lock_reserve(buffer, TRACE_GRAPH_RET, in __trace_graph_return()
476 if (!call_filter_check_discard(call, entry, buffer, event)) in __trace_graph_return()
477 __buffer_unlock_commit(buffer, event); in __trace_graph_return()
664 ring_buffer_consume(iter->trace_buffer->buffer, iter->cpu, in get_return_for_leaf()
666 event = ring_buffer_peek(iter->trace_buffer->buffer, iter->cpu, in get_return_for_leaf()
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| D | trace_hwlat.c | 108 struct ring_buffer *buffer = tr->trace_buffer.buffer; in trace_hwlat_sample() local
117 event = trace_buffer_lock_reserve(buffer, TRACE_HWLAT, sizeof(*entry), in trace_hwlat_sample()
129 if (!call_filter_check_discard(call, entry, buffer, event)) in trace_hwlat_sample()
130 __buffer_unlock_commit(buffer, event); in trace_hwlat_sample()
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| D | Kconfig | 266 be recorded into the ring buffer.
286 bool "Create a snapshot trace buffer"
289 Allow tracing users to take snapshot of the current buffer using the
300 Allow doing a snapshot of a single CPU buffer instead of a
306 After which, only the tracing buffer for CPU 2 was swapped with
307 the main tracing buffer, and the other CPU buffers remain the same.
390 events into a running trace buffer to see when and where the
643 tristate "Ring buffer benchmark stress tester"
646 This option creates a test to stress the ring buffer and benchmark it.
647 It creates its own ring buffer such that it will not interfere with
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| D | blktrace.c | 74 struct ring_buffer *buffer = NULL; in trace_note() local
80 buffer = blk_tr->trace_buffer.buffer; in trace_note()
82 event = trace_buffer_lock_reserve(buffer, TRACE_BLK, in trace_note()
107 trace_buffer_unlock_commit(blk_tr, buffer, event, 0, pc); in trace_note()
210 struct ring_buffer *buffer = NULL; in __blk_add_trace() local
240 buffer = blk_tr->trace_buffer.buffer; in __blk_add_trace()
242 event = trace_buffer_lock_reserve(buffer, TRACE_BLK, in __blk_add_trace()
288 trace_buffer_unlock_commit(blk_tr, buffer, event, 0, pc); in __blk_add_trace()
347 static ssize_t blk_dropped_read(struct file *filp, char __user *buffer, in blk_dropped_read() argument
355 return simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf)); in blk_dropped_read()
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| /kernel/debug/kdb/ |
| D | kdb_io.c | 34 static int kgdb_transition_check(char *buffer) in kgdb_transition_check() argument
36 if (buffer[0] != '+' && buffer[0] != '$') { in kgdb_transition_check()
38 kdb_printf("%s", buffer); in kgdb_transition_check()
40 int slen = strlen(buffer); in kgdb_transition_check()
41 if (slen > 3 && buffer[slen - 3] == '#') { in kgdb_transition_check()
42 kdb_gdb_state_pass(buffer); in kgdb_transition_check()
43 strcpy(buffer, "kgdb"); in kgdb_transition_check()
51 static int kdb_read_get_key(char *buffer, size_t bufsize) in kdb_read_get_key() argument
89 *buffer++ = key; in kdb_read_get_key()
90 *buffer = '\0'; in kdb_read_get_key()
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| D | kdb_bt.c | 83 char buffer[2]; in kdb_bt1() local
84 if (kdb_getarea(buffer[0], (unsigned long)p) || in kdb_bt1()
85 kdb_getarea(buffer[0], (unsigned long)(p+1)-1)) in kdb_bt1()
93 kdb_getstr(buffer, sizeof(buffer), in kdb_bt1()
95 if (buffer[0] == 'q') { in kdb_bt1()
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| /kernel/gcov/ |
| D | gcc_4_7.c | 364 void *buffer; member
380 static size_t store_gcov_u32(void *buffer, size_t off, u32 v) in store_gcov_u32() argument
384 if (buffer) { in store_gcov_u32()
385 data = buffer + off; in store_gcov_u32()
404 static size_t store_gcov_u64(void *buffer, size_t off, u64 v) in store_gcov_u64() argument
408 if (buffer) { in store_gcov_u64()
409 data = buffer + off; in store_gcov_u64()
425 static size_t convert_to_gcda(char *buffer, struct gcov_info *info) in convert_to_gcda() argument
435 pos += store_gcov_u32(buffer, pos, GCOV_DATA_MAGIC); in convert_to_gcda()
436 pos += store_gcov_u32(buffer, pos, info->version); in convert_to_gcda()
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| /kernel/ |
| D | sysctl.c | 183 void __user *buffer, size_t *lenp, loff_t *ppos);
185 void __user *buffer, size_t *lenp, loff_t *ppos);
190 void __user *buffer, size_t *lenp, loff_t *ppos);
194 void __user *buffer, size_t *lenp, loff_t *ppos);
197 void __user *buffer, size_t *lenp, loff_t *ppos);
205 void __user *buffer, size_t *lenp, in sysrq_sysctl_handler() argument
210 error = proc_dointvec(table, write, buffer, lenp, ppos); in sysrq_sysctl_handler()
1950 char __user *buffer, in _proc_do_string() argument
1978 p = buffer; in _proc_do_string()
1979 while ((p - buffer) < *lenp && len < maxlen - 1) { in _proc_do_string()
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| D | kallsyms.c | 419 static int __sprint_symbol(char *buffer, unsigned long address, in __sprint_symbol() argument
428 name = kallsyms_lookup(address, &size, &offset, &modname, buffer); in __sprint_symbol()
430 return sprintf(buffer, "0x%lx", address - symbol_offset); in __sprint_symbol()
432 if (name != buffer) in __sprint_symbol()
433 strcpy(buffer, name); in __sprint_symbol()
434 len = strlen(buffer); in __sprint_symbol()
438 len += sprintf(buffer + len, "+%#lx/%#lx", offset, size); in __sprint_symbol()
441 len += sprintf(buffer + len, " [%s]", modname); in __sprint_symbol()
457 int sprint_symbol(char *buffer, unsigned long address) in sprint_symbol() argument
459 return __sprint_symbol(buffer, address, 0, 1); in sprint_symbol()
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| D | watchdog.c | 642 void __user *buffer, size_t *lenp, loff_t *ppos) in proc_watchdog_common() argument
663 err = proc_dointvec_minmax(table, write, buffer, lenp, ppos); in proc_watchdog_common()
665 err = proc_dointvec_minmax(table, write, buffer, lenp, ppos); in proc_watchdog_common()
710 void __user *buffer, size_t *lenp, loff_t *ppos) in proc_watchdog() argument
713 table, write, buffer, lenp, ppos); in proc_watchdog()
720 void __user *buffer, size_t *lenp, loff_t *ppos) in proc_nmi_watchdog() argument
723 table, write, buffer, lenp, ppos); in proc_nmi_watchdog()
730 void __user *buffer, size_t *lenp, loff_t *ppos) in proc_soft_watchdog() argument
733 table, write, buffer, lenp, ppos); in proc_soft_watchdog()
740 void __user *buffer, size_t *lenp, loff_t *ppos) in proc_watchdog_thresh() argument
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| D | reboot.c | 284 char buffer[256]; in SYSCALL_DEFINE4() local
339 ret = strncpy_from_user(&buffer[0], arg, sizeof(buffer) - 1); in SYSCALL_DEFINE4()
344 buffer[sizeof(buffer) - 1] = '\0'; in SYSCALL_DEFINE4()
346 kernel_restart(buffer); in SYSCALL_DEFINE4()
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| D | sysctl_binary.c | 976 char *buffer; in bin_intvec() local
980 buffer = kmalloc(BUFSZ, GFP_KERNEL); in bin_intvec()
981 if (!buffer) in bin_intvec()
990 result = kernel_read(file, 0, buffer, BUFSZ - 1); in bin_intvec()
994 str = buffer; in bin_intvec()
1020 str = buffer; in bin_intvec()
1032 result = kernel_write(file, buffer, str - buffer, 0); in bin_intvec()
1038 kfree(buffer); in bin_intvec()
1047 char *buffer; in bin_ulongvec() local
1051 buffer = kmalloc(BUFSZ, GFP_KERNEL); in bin_ulongvec()
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| D | params.c | 277 int param_get_##name(char *buffer, const struct kernel_param *kp) \
279 return scnprintf(buffer, PAGE_SIZE, format, \
323 int param_get_charp(char *buffer, const struct kernel_param *kp) in param_get_charp() argument
325 return scnprintf(buffer, PAGE_SIZE, "%s", *((char **)kp->arg)); in param_get_charp()
353 int param_get_bool(char *buffer, const struct kernel_param *kp) in param_get_bool() argument
356 return sprintf(buffer, "%c", *(bool *)kp->arg ? 'Y' : 'N'); in param_get_bool()
413 int param_get_invbool(char *buffer, const struct kernel_param *kp) in param_get_invbool() argument
415 return sprintf(buffer, "%c", (*(bool *)kp->arg) ? 'N' : 'Y'); in param_get_invbool()
508 static int param_array_get(char *buffer, const struct kernel_param *kp) in param_array_get() argument
516 buffer[off++] = ','; in param_array_get()
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| /kernel/power/ |
| D | snapshot.c | 132 static void *buffer; variable
1372 safe_copy_page(buffer, s_page); in copy_data_page()
1374 copy_page(dst, buffer); in copy_data_page()
1485 buffer = NULL; in swsusp_free()
1883 buffer = get_image_page(GFP_ATOMIC | __GFP_COLD, safe_needed); in get_highmem_buffer()
1884 return buffer ? 0 : -ENOMEM; in get_highmem_buffer()
2085 if (!buffer) { in snapshot_read_next()
2087 buffer = get_image_page(GFP_ATOMIC, PG_ANY); in snapshot_read_next()
2088 if (!buffer) in snapshot_read_next()
2094 error = init_header((struct swsusp_info *)buffer); in snapshot_read_next()
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| /kernel/printk/ |
| D | nmi.c | 51 unsigned char buffer[NMI_LOG_BUF_LEN]; member
70 if (len >= sizeof(s->buffer)) { in vprintk_nmi()
82 add = vsnprintf(s->buffer + len, sizeof(s->buffer) - len, fmt, args); in vprintk_nmi()
123 const char *buf = s->buffer + start; in printk_nmi_flush_seq_line()
171 size = min(len, sizeof(s->buffer)); in __printk_nmi_flush()
176 if (s->buffer[i] == '\n') { in __printk_nmi_flush()
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| /kernel/irq/ |
| D | proc.c | 93 const char __user *buffer, size_t count, loff_t *pos) in write_irq_affinity() argument
106 err = cpumask_parselist_user(buffer, count, new_value); in write_irq_affinity()
108 err = cpumask_parse_user(buffer, count, new_value); in write_irq_affinity()
137 const char __user *buffer, size_t count, loff_t *pos) in irq_affinity_proc_write() argument
139 return write_irq_affinity(0, file, buffer, count, pos); in irq_affinity_proc_write()
143 const char __user *buffer, size_t count, loff_t *pos) in irq_affinity_list_proc_write() argument
145 return write_irq_affinity(1, file, buffer, count, pos); in irq_affinity_list_proc_write()
193 const char __user *buffer, size_t count, loff_t *ppos) in default_affinity_write() argument
201 err = cpumask_parse_user(buffer, count, new_value); in default_affinity_write()
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| /kernel/debug/ |
| D | gdbstub.c | 90 static void get_packet(char *buffer) in get_packet() argument
119 buffer[count] = ch; in get_packet()
136 buffer[count] = 0; in get_packet()
144 static void put_packet(char *buffer) in put_packet() argument
158 while ((ch = buffer[count])) { in put_packet()
1115 unsigned char checksum, ch, buffer[3]; in gdbstub_exit() local
1125 buffer[0] = 'W'; in gdbstub_exit()
1126 buffer[1] = hex_asc_hi(status); in gdbstub_exit()
1127 buffer[2] = hex_asc_lo(status); in gdbstub_exit()
1133 ch = buffer[loop]; in gdbstub_exit()
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