Lines Matching refs:cnt
931 size_t cnt, loff_t *ppos) in trace_get_user() argument
945 cnt--; in trace_get_user()
953 while (cnt && isspace(ch)) { in trace_get_user()
958 cnt--; in trace_get_user()
972 while (cnt && !isspace(ch)) { in trace_get_user()
983 cnt--; in trace_get_user()
1006 static ssize_t trace_seq_to_buffer(struct trace_seq *s, void *buf, size_t cnt) in trace_seq_to_buffer() argument
1014 if (cnt > len) in trace_seq_to_buffer()
1015 cnt = len; in trace_seq_to_buffer()
1016 memcpy(buf, s->buffer + s->seq.readpos, cnt); in trace_seq_to_buffer()
1018 s->seq.readpos += cnt; in trace_seq_to_buffer()
1019 return cnt; in trace_seq_to_buffer()
3645 size_t cnt, loff_t *ppos) in tracing_trace_options_write() argument
3652 if (cnt >= sizeof(buf)) in tracing_trace_options_write()
3655 if (copy_from_user(&buf, ubuf, cnt)) in tracing_trace_options_write()
3658 buf[cnt] = 0; in tracing_trace_options_write()
3664 *ppos += cnt; in tracing_trace_options_write()
3666 return cnt; in tracing_trace_options_write()
3826 size_t cnt, loff_t *ppos) in tracing_readme_read() argument
3828 return simple_read_from_buffer(ubuf, cnt, ppos, in tracing_readme_read()
3916 size_t cnt, loff_t *ppos) in tracing_saved_cmdlines_size_read() argument
3925 return simple_read_from_buffer(ubuf, cnt, ppos, buf, r); in tracing_saved_cmdlines_size_read()
3959 size_t cnt, loff_t *ppos) in tracing_saved_cmdlines_size_write() argument
3964 ret = kstrtoul_from_user(ubuf, cnt, 10, &val); in tracing_saved_cmdlines_size_write()
3976 *ppos += cnt; in tracing_saved_cmdlines_size_write()
3978 return cnt; in tracing_saved_cmdlines_size_write()
4165 size_t cnt, loff_t *ppos) in tracing_set_trace_read() argument
4175 return simple_read_from_buffer(ubuf, cnt, ppos, buf, r); in tracing_set_trace_read()
4458 size_t cnt, loff_t *ppos) in tracing_set_trace_write() argument
4466 ret = cnt; in tracing_set_trace_write()
4468 if (cnt > MAX_TRACER_SIZE) in tracing_set_trace_write()
4469 cnt = MAX_TRACER_SIZE; in tracing_set_trace_write()
4471 if (copy_from_user(&buf, ubuf, cnt)) in tracing_set_trace_write()
4474 buf[cnt] = 0; in tracing_set_trace_write()
4477 for (i = cnt - 1; i > 0 && isspace(buf[i]); i--) in tracing_set_trace_write()
4491 size_t cnt, loff_t *ppos) in tracing_nsecs_read() argument
4500 return simple_read_from_buffer(ubuf, cnt, ppos, buf, r); in tracing_nsecs_read()
4505 size_t cnt, loff_t *ppos) in tracing_nsecs_write() argument
4510 ret = kstrtoul_from_user(ubuf, cnt, 10, &val); in tracing_nsecs_write()
4516 return cnt; in tracing_nsecs_write()
4521 size_t cnt, loff_t *ppos) in tracing_thresh_read() argument
4523 return tracing_nsecs_read(&tracing_thresh, ubuf, cnt, ppos); in tracing_thresh_read()
4528 size_t cnt, loff_t *ppos) in tracing_thresh_write() argument
4534 ret = tracing_nsecs_write(&tracing_thresh, ubuf, cnt, ppos); in tracing_thresh_write()
4544 ret = cnt; in tracing_thresh_write()
4555 size_t cnt, loff_t *ppos) in tracing_max_lat_read() argument
4557 return tracing_nsecs_read(filp->private_data, ubuf, cnt, ppos); in tracing_max_lat_read()
4562 size_t cnt, loff_t *ppos) in tracing_max_lat_write() argument
4564 return tracing_nsecs_write(filp->private_data, ubuf, cnt, ppos); in tracing_max_lat_write()
4725 size_t cnt, loff_t *ppos) in tracing_read_pipe() argument
4731 sret = trace_seq_to_user(&iter->seq, ubuf, cnt); in tracing_read_pipe()
4744 sret = iter->trace->read(iter, filp, ubuf, cnt, ppos); in tracing_read_pipe()
4760 if (cnt >= PAGE_SIZE) in tracing_read_pipe()
4761 cnt = PAGE_SIZE - 1; in tracing_read_pipe()
4785 if (trace_seq_used(&iter->seq) >= cnt) in tracing_read_pipe()
4800 sret = trace_seq_to_user(&iter->seq, ubuf, cnt); in tracing_read_pipe()
4967 size_t cnt, loff_t *ppos) in tracing_entries_read() argument
5009 ret = simple_read_from_buffer(ubuf, cnt, ppos, buf, r); in tracing_entries_read()
5015 size_t cnt, loff_t *ppos) in tracing_entries_write() argument
5022 ret = kstrtoul_from_user(ubuf, cnt, 10, &val); in tracing_entries_write()
5036 *ppos += cnt; in tracing_entries_write()
5038 return cnt; in tracing_entries_write()
5043 size_t cnt, loff_t *ppos) in tracing_total_entries_read() argument
5062 return simple_read_from_buffer(ubuf, cnt, ppos, buf, r); in tracing_total_entries_read()
5067 size_t cnt, loff_t *ppos) in tracing_free_buffer_write() argument
5074 *ppos += cnt; in tracing_free_buffer_write()
5076 return cnt; in tracing_free_buffer_write()
5097 size_t cnt, loff_t *fpos) in tracing_mark_write() argument
5121 if (cnt > TRACE_BUF_SIZE) in tracing_mark_write()
5122 cnt = TRACE_BUF_SIZE; in tracing_mark_write()
5141 if ((addr & PAGE_MASK) != ((addr + cnt) & PAGE_MASK)) in tracing_mark_write()
5159 size = sizeof(*entry) + cnt + 2; /* possible \n added */ in tracing_mark_write()
5175 memcpy(&entry->buf[len], map_page[1], cnt - len); in tracing_mark_write()
5177 memcpy(&entry->buf, map_page[0] + offset, cnt); in tracing_mark_write()
5179 if (entry->buf[cnt - 1] != '\n') { in tracing_mark_write()
5180 entry->buf[cnt] = '\n'; in tracing_mark_write()
5181 entry->buf[cnt + 1] = '\0'; in tracing_mark_write()
5183 entry->buf[cnt] = '\0'; in tracing_mark_write()
5187 written = cnt; in tracing_mark_write()
5250 size_t cnt, loff_t *fpos) in tracing_clock_write() argument
5258 if (cnt >= sizeof(buf)) in tracing_clock_write()
5261 if (copy_from_user(&buf, ubuf, cnt)) in tracing_clock_write()
5264 buf[cnt] = 0; in tracing_clock_write()
5272 *fpos += cnt; in tracing_clock_write()
5274 return cnt; in tracing_clock_write()
5343 tracing_snapshot_write(struct file *filp, const char __user *ubuf, size_t cnt, in tracing_snapshot_write() argument
5356 ret = kstrtoul_from_user(ubuf, cnt, 10, &val); in tracing_snapshot_write()
5408 *ppos += cnt; in tracing_snapshot_write()
5409 ret = cnt; in tracing_snapshot_write()
5874 unsigned long cnt; in tracing_stats_read() local
5884 cnt = ring_buffer_entries_cpu(trace_buf->buffer, cpu); in tracing_stats_read()
5885 trace_seq_printf(s, "entries: %ld\n", cnt); in tracing_stats_read()
5887 cnt = ring_buffer_overrun_cpu(trace_buf->buffer, cpu); in tracing_stats_read()
5888 trace_seq_printf(s, "overrun: %ld\n", cnt); in tracing_stats_read()
5890 cnt = ring_buffer_commit_overrun_cpu(trace_buf->buffer, cpu); in tracing_stats_read()
5891 trace_seq_printf(s, "commit overrun: %ld\n", cnt); in tracing_stats_read()
5893 cnt = ring_buffer_bytes_cpu(trace_buf->buffer, cpu); in tracing_stats_read()
5894 trace_seq_printf(s, "bytes: %ld\n", cnt); in tracing_stats_read()
5915 cnt = ring_buffer_dropped_events_cpu(trace_buf->buffer, cpu); in tracing_stats_read()
5916 trace_seq_printf(s, "dropped events: %ld\n", cnt); in tracing_stats_read()
5918 cnt = ring_buffer_read_events_cpu(trace_buf->buffer, cpu); in tracing_stats_read()
5919 trace_seq_printf(s, "read events: %ld\n", cnt); in tracing_stats_read()
5945 size_t cnt, loff_t *ppos) in tracing_read_dyn_info() argument
5960 r = simple_read_from_buffer(ubuf, cnt, ppos, buf, r); in tracing_read_dyn_info()
6173 trace_options_read(struct file *filp, char __user *ubuf, size_t cnt, in trace_options_read() argument
6184 return simple_read_from_buffer(ubuf, cnt, ppos, buf, 2); in trace_options_read()
6188 trace_options_write(struct file *filp, const char __user *ubuf, size_t cnt, in trace_options_write() argument
6195 ret = kstrtoul_from_user(ubuf, cnt, 10, &val); in trace_options_write()
6211 *ppos += cnt; in trace_options_write()
6213 return cnt; in trace_options_write()
6258 trace_options_core_read(struct file *filp, char __user *ubuf, size_t cnt, in trace_options_core_read() argument
6273 return simple_read_from_buffer(ubuf, cnt, ppos, buf, 2); in trace_options_core_read()
6277 trace_options_core_write(struct file *filp, const char __user *ubuf, size_t cnt, in trace_options_core_write() argument
6288 ret = kstrtoul_from_user(ubuf, cnt, 10, &val); in trace_options_core_write()
6302 *ppos += cnt; in trace_options_core_write()
6304 return cnt; in trace_options_core_write()
6378 int cnt; in create_trace_option_files() local
6407 for (cnt = 0; opts[cnt].name; cnt++) in create_trace_option_files()
6410 topts = kcalloc(cnt + 1, sizeof(*topts), GFP_KERNEL); in create_trace_option_files()
6426 for (cnt = 0; opts[cnt].name; cnt++) { in create_trace_option_files()
6427 create_trace_option_file(tr, &topts[cnt], flags, in create_trace_option_files()
6428 &opts[cnt]); in create_trace_option_files()
6429 WARN_ONCE(topts[cnt].entry == NULL, in create_trace_option_files()
6431 opts[cnt].name); in create_trace_option_files()
6469 size_t cnt, loff_t *ppos) in rb_simple_read() argument
6478 return simple_read_from_buffer(ubuf, cnt, ppos, buf, r); in rb_simple_read()
6483 size_t cnt, loff_t *ppos) in rb_simple_write() argument
6490 ret = kstrtoul_from_user(ubuf, cnt, 10, &val); in rb_simple_write()
6510 return cnt; in rb_simple_write()
7097 int cnt = 0, cpu; in ftrace_dump() local
7160 if (!cnt) in ftrace_dump()
7163 cnt++; in ftrace_dump()
7184 if (!cnt) in ftrace_dump()