| /kernel/trace/ |
| D | ring_buffer.c | 271 #define for_each_buffer_cpu(buffer, cpu) \ argument
272 for_each_cpu(cpu, buffer->cpumask)
442 struct ring_buffer *buffer; member
532 int ring_buffer_wait(struct ring_buffer *buffer, int cpu, bool full) in ring_buffer_wait() argument
545 work = &buffer->irq_work; in ring_buffer_wait()
549 if (!cpumask_test_cpu(cpu, buffer->cpumask)) in ring_buffer_wait()
551 cpu_buffer = buffer->buffers[cpu]; in ring_buffer_wait()
592 if (cpu == RING_BUFFER_ALL_CPUS && !ring_buffer_empty(buffer)) in ring_buffer_wait()
596 !ring_buffer_empty_cpu(buffer, cpu)) { in ring_buffer_wait()
636 int ring_buffer_poll_wait(struct ring_buffer *buffer, int cpu, in ring_buffer_poll_wait() argument
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| D | trace.c | 313 struct ring_buffer *buffer, in filter_check_discard() argument
318 ring_buffer_discard_commit(buffer, event); in filter_check_discard()
327 struct ring_buffer *buffer, in call_filter_check_discard() argument
332 ring_buffer_discard_commit(buffer, event); in call_filter_check_discard()
345 if (!buf->buffer) in buffer_ftrace_now()
348 ts = ring_buffer_time_stamp(buf->buffer, cpu); in buffer_ftrace_now()
349 ring_buffer_normalize_time_stamp(buf->buffer, cpu, &ts); in buffer_ftrace_now()
484 static void __ftrace_trace_stack(struct ring_buffer *buffer,
488 struct ring_buffer *buffer,
493 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 | 128 unsigned long over = ring_buffer_overruns(iter->trace_buffer->buffer); in count_overruns()
302 struct ring_buffer *buffer = tr->trace_buffer.buffer; in __trace_mmiotrace_rw() local
307 event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_RW, in __trace_mmiotrace_rw()
316 if (!call_filter_check_discard(call, entry, buffer, event)) in __trace_mmiotrace_rw()
317 trace_buffer_unlock_commit(tr, buffer, event, 0, pc); in __trace_mmiotrace_rw()
332 struct ring_buffer *buffer = tr->trace_buffer.buffer; in __trace_mmiotrace_map() local
337 event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_MAP, in __trace_mmiotrace_map()
346 if (!call_filter_check_discard(call, entry, buffer, event)) in __trace_mmiotrace_map()
347 trace_buffer_unlock_commit(tr, buffer, event, 0, pc); in __trace_mmiotrace_map()
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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_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_syscalls.c | 301 struct ring_buffer *buffer; in ftrace_syscall_enter() local
328 buffer = tr->trace_buffer.buffer; in ftrace_syscall_enter()
329 event = trace_buffer_lock_reserve(buffer, in ftrace_syscall_enter()
338 event_trigger_unlock_commit(trace_file, buffer, event, entry, in ftrace_syscall_enter()
349 struct ring_buffer *buffer; in ftrace_syscall_exit() local
373 buffer = tr->trace_buffer.buffer; in ftrace_syscall_exit()
374 event = trace_buffer_lock_reserve(buffer, in ftrace_syscall_exit()
384 event_trigger_unlock_commit(trace_file, buffer, event, entry, in ftrace_syscall_exit()
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| D | trace_functions_graph.c | 294 struct ring_buffer *buffer = tr->trace_buffer.buffer; in __trace_graph_entry() local
297 event = trace_buffer_lock_reserve(buffer, TRACE_GRAPH_ENT, in __trace_graph_entry()
303 if (!call_filter_check_discard(call, entry, buffer, event)) in __trace_graph_entry()
304 __buffer_unlock_commit(buffer, event); in __trace_graph_entry()
406 struct ring_buffer *buffer = tr->trace_buffer.buffer; in __trace_graph_return() local
409 event = trace_buffer_lock_reserve(buffer, TRACE_GRAPH_RET, in __trace_graph_return()
415 if (!call_filter_check_discard(call, entry, buffer, event)) in __trace_graph_return()
416 __buffer_unlock_commit(buffer, event); in __trace_graph_return()
603 ring_buffer_consume(iter->trace_buffer->buffer, iter->cpu, in get_return_for_leaf()
605 event = ring_buffer_peek(iter->trace_buffer->buffer, iter->cpu, in get_return_for_leaf()
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| D | Kconfig | 256 bool "Create a snapshot trace buffer"
259 Allow tracing users to take snapshot of the current buffer using the
270 Allow doing a snapshot of a single CPU buffer instead of a
276 After which, only the tracing buffer for CPU 2 was swapped with
277 the main tracing buffer, and the other CPU buffers remain the same.
360 events into a running trace buffer to see when and where the
586 tristate "Ring buffer benchmark stress tester"
589 This option creates a test to stress the ring buffer and benchmark it.
590 It creates its own ring buffer such that it will not interfere with
591 any other users of the ring buffer (such as ftrace). It then creates
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| D | blktrace.c | 77 struct ring_buffer *buffer = NULL; in trace_note() local
83 buffer = blk_tr->trace_buffer.buffer; in trace_note()
85 event = trace_buffer_lock_reserve(buffer, TRACE_BLK, in trace_note()
110 trace_buffer_unlock_commit(blk_tr, buffer, event, 0, pc); in trace_note()
210 struct ring_buffer *buffer = NULL; in __blk_add_trace() local
237 buffer = blk_tr->trace_buffer.buffer; in __blk_add_trace()
239 event = trace_buffer_lock_reserve(buffer, TRACE_BLK, in __blk_add_trace()
285 trace_buffer_unlock_commit(blk_tr, buffer, event, 0, pc); in __blk_add_trace()
356 static ssize_t blk_dropped_read(struct file *filp, char __user *buffer, in blk_dropped_read() argument
364 return simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf)); in blk_dropped_read()
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| D | trace_kdb.c | 49 ring_buffer_read_prepare(iter.trace_buffer->buffer, in ftrace_dump_buf()
57 ring_buffer_read_prepare(iter.trace_buffer->buffer, in ftrace_dump_buf()
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| D | trace.h | 165 struct ring_buffer *buffer; member
572 trace_buffer_lock_reserve(struct ring_buffer *buffer,
584 void __buffer_unlock_commit(struct ring_buffer *buffer,
636 struct ring_buffer *buffer, unsigned long flags,
643 struct ring_buffer *buffer, in ftrace_trace_userstack() argument
711 int trace_array_printk_buf(struct ring_buffer *buffer,
882 char *buffer; member
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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 | 366 void *buffer; member
382 static size_t store_gcov_u32(void *buffer, size_t off, u32 v) in store_gcov_u32() argument
386 if (buffer) { in store_gcov_u32()
387 data = buffer + off; in store_gcov_u32()
406 static size_t store_gcov_u64(void *buffer, size_t off, u64 v) in store_gcov_u64() argument
410 if (buffer) { in store_gcov_u64()
411 data = buffer + off; in store_gcov_u64()
427 static size_t convert_to_gcda(char *buffer, struct gcov_info *info) in convert_to_gcda() argument
437 pos += store_gcov_u32(buffer, pos, GCOV_DATA_MAGIC); in convert_to_gcda()
438 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()
1925 char __user *buffer, in _proc_do_string() argument
1953 p = buffer; in _proc_do_string()
1954 while ((p - buffer) < *lenp && len < maxlen - 1) { in _proc_do_string()
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| D | kallsyms.c | 356 static int __sprint_symbol(char *buffer, unsigned long address, in __sprint_symbol() argument
365 name = kallsyms_lookup(address, &size, &offset, &modname, buffer); in __sprint_symbol()
367 return sprintf(buffer, "0x%lx", address - symbol_offset); in __sprint_symbol()
369 if (name != buffer) in __sprint_symbol()
370 strcpy(buffer, name); in __sprint_symbol()
371 len = strlen(buffer); in __sprint_symbol()
375 len += sprintf(buffer + len, "+%#lx/%#lx", offset, size); in __sprint_symbol()
378 len += sprintf(buffer + len, " [%s]", modname); in __sprint_symbol()
394 int sprint_symbol(char *buffer, unsigned long address) in sprint_symbol() argument
396 return __sprint_symbol(buffer, address, 0, 1); in sprint_symbol()
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| D | watchdog.c | 969 void __user *buffer, size_t *lenp, loff_t *ppos) in proc_watchdog_common() argument
990 err = proc_dointvec_minmax(table, write, buffer, lenp, ppos); in proc_watchdog_common()
992 err = proc_dointvec_minmax(table, write, buffer, lenp, ppos); in proc_watchdog_common()
1037 void __user *buffer, size_t *lenp, loff_t *ppos) in proc_watchdog() argument
1040 table, write, buffer, lenp, ppos); in proc_watchdog()
1047 void __user *buffer, size_t *lenp, loff_t *ppos) in proc_nmi_watchdog() argument
1050 table, write, buffer, lenp, ppos); in proc_nmi_watchdog()
1057 void __user *buffer, size_t *lenp, loff_t *ppos) in proc_soft_watchdog() argument
1060 table, write, buffer, lenp, ppos); in proc_soft_watchdog()
1067 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 | 975 char *buffer; in bin_intvec() local
979 buffer = kmalloc(BUFSZ, GFP_KERNEL); in bin_intvec()
980 if (!buffer) in bin_intvec()
989 result = kernel_read(file, 0, buffer, BUFSZ - 1); in bin_intvec()
993 str = buffer; in bin_intvec()
1019 str = buffer; in bin_intvec()
1031 result = kernel_write(file, buffer, str - buffer, 0); in bin_intvec()
1037 kfree(buffer); in bin_intvec()
1046 char *buffer; in bin_ulongvec() local
1050 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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| D | utsname_sysctl.c | 36 void __user *buffer, size_t *lenp, loff_t *ppos) in proc_do_uts_string() argument
54 r = proc_dostring(&uts_table, write, buffer, lenp, ppos); in proc_do_uts_string()
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| /kernel/power/ |
| D | snapshot.c | 78 static void *buffer; variable
1249 safe_copy_page(buffer, s_page); in copy_data_page()
1251 copy_page(dst, buffer); in copy_data_page()
1362 buffer = NULL; in swsusp_free()
1760 buffer = get_image_page(GFP_ATOMIC | __GFP_COLD, safe_needed); in get_highmem_buffer()
1761 return buffer ? 0 : -ENOMEM; in get_highmem_buffer()
1961 if (!buffer) { in snapshot_read_next()
1963 buffer = get_image_page(GFP_ATOMIC, PG_ANY); in snapshot_read_next()
1964 if (!buffer) in snapshot_read_next()
1970 error = init_header((struct swsusp_info *)buffer); in snapshot_read_next()
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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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