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Searched refs:buf (Results 1 – 25 of 155) sorted by relevance

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/kernel/
A Drelay.c203 *per_cpu_ptr(chan->buf, buf->cpu) = NULL; in relay_destroy_buf()
303 buf->data = buf->start; in __relay_reset()
311 relay_subbuf_start(buf, buf->data, NULL); in __relay_reset()
340 if ((buf = *per_cpu_ptr(chan->buf, i))) in relay_reset()
411 *per_cpu_ptr(chan->buf, 0) = buf; in relay_open_buf()
453 *per_cpu_ptr(chan->buf, cpu) = buf; in relay_prepare_cpu()
521 *per_cpu_ptr(chan->buf, i) = buf; in relay_open()
530 if ((buf = *per_cpu_ptr(chan->buf, i))) in relay_open()
633 buf = *per_cpu_ptr(chan->buf, cpu); in relay_subbufs_consumed()
693 if ((buf = *per_cpu_ptr(chan->buf, i))) in relay_flush()
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A Dksysfs.c71 const char *buf, size_t count) in uevent_helper_store() argument
75 memcpy(uevent_helper, buf, count); in uevent_helper_store()
92 const char *buf, size_t count) in profiling_store() argument
110 profile_setup((char *)buf); in profiling_store()
146 return sysfs_emit(buf, "%zd\n", size); in kexec_crash_size_show()
150 const char *buf, size_t count) in kexec_crash_size_store() argument
155 if (kstrtoul(buf, 0, &cnt)) in kexec_crash_size_store()
183 return sysfs_emit(buf, "%u\n", sz); in crash_elfcorehdr_size_show()
208 const char *buf, size_t count) in rcu_expedited_store() argument
225 const char *buf, size_t count) in rcu_normal_store() argument
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A Dvmcore_info.c37 struct elf_note *note = (struct elf_note *)buf; in append_elf_note()
43 memcpy(buf, name, note->n_namesz); in append_elf_note()
45 memcpy(buf, data, data_len); in append_elf_note()
48 return buf; in append_elf_note()
51 void final_note(Elf_Word *buf) in final_note() argument
53 memset(buf, 0, sizeof(struct elf_note)); in final_note()
58 u32 *buf = vmcoreinfo_note; in update_vmcoreinfo_note() local
62 buf = append_elf_note(buf, VMCOREINFO_NOTE_NAME, 0, vmcoreinfo_data, in update_vmcoreinfo_note()
64 final_note(buf); in update_vmcoreinfo_note()
91 char buf[0x50]; in vmcoreinfo_append_str() local
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A Dreboot.c1077 struct kobj_attribute *attr, char *buf) in hw_protection_show() argument
1079 return sysfs_emit(buf, "%s\n", in hw_protection_show()
1218 return sysfs_emit(buf, "%s\n", val); in mode_show()
1221 const char *buf, size_t count) in mode_store() argument
1251 const char *buf, size_t count) in force_store() argument
1258 if (kstrtobool(buf, &res)) in force_store()
1295 return sysfs_emit(buf, "%s\n", val); in type_show()
1298 const char *buf, size_t count) in type_store() argument
1328 return sysfs_emit(buf, "%d\n", reboot_cpu); in cpu_show()
1331 const char *buf, size_t count) in cpu_store() argument
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A Dkexec_elf.c129 memcpy(ehdr->e_ident, buf, sizeof(ehdr->e_ident)); in elf_read_ehdr()
144 buf_ehdr = (struct elfhdr *) buf; in elf_read_ehdr()
202 static int elf_read_phdr(const char *buf, size_t len, in elf_read_phdr() argument
251 static int elf_read_phdrs(const char *buf, size_t len, in elf_read_phdrs() argument
270 ret = elf_read_phdr(buf, len, elf_info, i); in elf_read_phdrs()
302 ret = elf_read_ehdr(buf, len, ehdr); in elf_read_from_buffer()
306 elf_info->buffer = buf; in elf_read_from_buffer()
309 ret = elf_read_phdrs(buf, len, elf_info); in elf_read_from_buffer()
333 ret = elf_read_from_buffer(buf, len, ehdr, elf_info); in kexec_build_elf_info()
365 int kexec_elf_probe(const char *buf, unsigned long len) in kexec_elf_probe() argument
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A Dpanic.c215 static int __init setup_panic_sys_info(char *buf) in setup_panic_sys_info() argument
218 panic_print = sys_info_parse_param(buf); in setup_panic_sys_info()
368 static char buf[1024]; in vpanic() local
419 len = vscnprintf(buf, sizeof(buf), fmt, args); in vpanic()
421 if (len && buf[len - 1] == '\n') in vpanic()
422 buf[len - 1] = '\0'; in vpanic()
424 pr_emerg("Kernel panic - not syncing: %s\n", buf); in vpanic()
438 kgdb_panic(buf); in vpanic()
463 kmsg_dump_desc(KMSG_DUMP_PANIC, buf); in vpanic()
637 static char buf[sizeof(taint_flags)]; in _print_tainted() local
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A Dwatch_queue.c58 struct pipe_buffer *buf) in watch_queue_pipe_buf_release() argument
68 bit = buf->offset + buf->len; in watch_queue_pipe_buf_release()
73 page = buf->page; in watch_queue_pipe_buf_release()
102 struct pipe_buffer *buf; in post_one_notification() local
126 buf = pipe_buf(pipe, head); in post_one_notification()
127 buf->page = page; in post_one_notification()
130 buf->offset = offset; in post_one_notification()
131 buf->len = len; in post_one_notification()
132 buf->flags = PIPE_BUF_FLAG_WHOLE; in post_one_notification()
149 buf = pipe_buf(pipe, head - 1); in post_one_notification()
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/kernel/power/
A Dmain.c125 char *buf) in pm_async_show() argument
149 char *buf) in mem_sleep_show() argument
267 char *buf) in pm_test_show() argument
615 char *buf) in pm_wakeup_irq_show() argument
682 char *buf) in state_show() argument
795 char *buf) in wakeup_count_show() argument
837 char *buf) in autosleep_show() argument
864 && strcmp(buf, "off") && strcmp(buf, "off\n")) in autosleep_store()
880 char *buf) in wake_lock_show() argument
897 char *buf) in wake_unlock_show() argument
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A Dhibernate.c1180 char *buf) in disk_show() argument
1213 buf[count - 1] = '\n'; in disk_show()
1219 const char *buf, size_t n) in disk_store() argument
1231 p = memchr(buf, '\n', n); in disk_store()
1232 len = p ? p - buf : n; in disk_store()
1271 char *buf) in resume_show() argument
1278 const char *buf, size_t n) in resume_store() argument
1289 if (len && buf[len-1] == '\n') in resume_store()
1343 rc = kstrtoull(buf, 0, &offset); in resume_offset_store()
1354 char *buf) in image_size_show() argument
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A Dwakelock.c38 ssize_t pm_show_wakelocks(char *buf, bool show_active) in pm_show_wakelocks() argument
49 len += sysfs_emit_at(buf, len, "%s ", wl->name); in pm_show_wakelocks()
55 len += sysfs_emit_at(buf, len, "\n"); in pm_show_wakelocks()
206 int pm_wake_lock(const char *buf) in pm_wake_lock() argument
208 const char *str = buf; in pm_wake_lock()
220 len = str - buf; in pm_wake_lock()
233 wl = wakelock_lookup_add(buf, len, true); in pm_wake_lock()
254 int pm_wake_unlock(const char *buf) in pm_wake_unlock() argument
263 len = strlen(buf); in pm_wake_unlock()
267 if (buf[len-1] == '\n') in pm_wake_unlock()
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/kernel/trace/
A Dtrace_boot.c29 char buf[MAX_BUF_LEN]; in trace_boot_set_instance_options() local
34 if (strscpy(buf, p, ARRAY_SIZE(buf)) < 0) { in trace_boot_set_instance_options()
86 char buf[MAX_BUF_LEN]; in trace_boot_enable_events() local
90 if (strscpy(buf, p, ARRAY_SIZE(buf)) < 0) { in trace_boot_enable_events()
106 char buf[MAX_BUF_LEN]; in trace_boot_add_kprobe_event() local
143 char buf[MAX_BUF_LEN]; in trace_boot_add_synth_event() local
410 if (buf == end) { in trace_boot_compose_hist_cmd()
467 char buf[MAX_BUF_LEN]; in trace_boot_init_one_event() local
489 if (strscpy(buf, p, ARRAY_SIZE(buf)) < 0) in trace_boot_init_one_event()
497 if (strscpy(buf, p, ARRAY_SIZE(buf)) < 0) in trace_boot_init_one_event()
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A Dtrace_probe_tmpl.h11 *(u8 *)buf = (u8)val; in fetch_store_raw()
14 *(u16 *)buf = (u16)val; in fetch_store_raw()
17 *(u32 *)buf = (u32)val; in fetch_store_raw()
21 *(u64 *)buf = (u64)val; in fetch_store_raw()
24 *(unsigned long *)buf = val; in fetch_store_raw()
33 *(u8 *)buf <<= code->lshift; in fetch_apply_bitfield()
34 *(u8 *)buf >>= code->rshift; in fetch_apply_bitfield()
37 *(u16 *)buf <<= code->lshift; in fetch_apply_bitfield()
38 *(u16 *)buf >>= code->rshift; in fetch_apply_bitfield()
41 *(u32 *)buf <<= code->lshift; in fetch_apply_bitfield()
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A Dkprobe_event_gen_test.c88 char *buf; in test_gen_kprobe_cmd() local
92 buf = kzalloc(MAX_DYNEVENT_CMD_LEN, GFP_KERNEL); in test_gen_kprobe_cmd()
93 if (!buf) in test_gen_kprobe_cmd()
97 kprobe_event_cmd_init(&cmd, buf, MAX_DYNEVENT_CMD_LEN); in test_gen_kprobe_cmd()
143 kfree(buf); in test_gen_kprobe_cmd()
159 char *buf; in test_gen_kretprobe_cmd() local
163 buf = kzalloc(MAX_DYNEVENT_CMD_LEN, GFP_KERNEL); in test_gen_kretprobe_cmd()
164 if (!buf) in test_gen_kretprobe_cmd()
168 kprobe_event_cmd_init(&cmd, buf, MAX_DYNEVENT_CMD_LEN); in test_gen_kretprobe_cmd()
208 kfree(buf); in test_gen_kretprobe_cmd()
A Dsynth_event_gen_test.c49 char *buf; in test_gen_synth_cmd() local
53 buf = kzalloc(MAX_DYNEVENT_CMD_LEN, GFP_KERNEL); in test_gen_synth_cmd()
54 if (!buf) in test_gen_synth_cmd()
58 synth_event_cmd_init(&cmd, buf, MAX_DYNEVENT_CMD_LEN); in test_gen_synth_cmd()
124 kfree(buf); in test_gen_synth_cmd()
140 char *buf; in test_empty_synth_event() local
144 buf = kzalloc(MAX_DYNEVENT_CMD_LEN, GFP_KERNEL); in test_empty_synth_event()
145 if (!buf) in test_empty_synth_event()
149 synth_event_cmd_init(&cmd, buf, MAX_DYNEVENT_CMD_LEN); in test_empty_synth_event()
229 kfree(buf); in test_empty_synth_event()
A Dtrace.c2423 buf->time_start = buffer_ftrace_now(buf, buf->cpu); in tracing_reset_online_cpus()
2442 buf->time_start = buffer_ftrace_now(buf, buf->cpu); in tracing_reset_all_cpus()
5340 if (buf) in apply_trace_boot_options()
6398 r = snprintf(buf, sizeof(buf), "%ld\n", in tracing_nsecs_read()
7880 len = snprintf(buf, sizeof(buf), "%llu\n", val); in trace_min_max_read()
8714 char *buf; in tracing_read_dyn_info() local
8721 if (!buf) in tracing_read_dyn_info()
8735 kfree(buf); in tracing_read_dyn_info()
9011 char *buf; in trace_options_read() local
9118 char *buf; in trace_options_core_read() local
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A Dblktrace.c154 char *buf; in __blk_trace_note_message() local
419 char buf[16]; in blk_dropped_read() local
421 snprintf(buf, sizeof(buf), "%zu\n", dropped); in blk_dropped_read()
423 return simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf)); in blk_dropped_read()
1621 char *buf);
1679 if (buf == NULL) in blk_trace_str2mask()
1681 s = strstrip(buf); in blk_trace_str2mask()
1702 kfree(buf); in blk_trace_str2mask()
1710 char *p = buf; in blk_trace_mask2str()
1720 return p - buf; in blk_trace_mask2str()
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/kernel/module/
A Dstats.c278 char *buf; in read_file_mod_stats() local
301 buf = kzalloc(size, GFP_KERNEL); in read_file_mod_stats()
302 if (buf == NULL) in read_file_mod_stats()
306 len = scnprintf(buf, size, "%25s\t%u\n", "Mods ever loaded", live_mod_count); in read_file_mod_stats()
331 len += scnprintf(buf + len, size - len, "%25s\t%lu\n", "Average mod size", in read_file_mod_stats()
349 len += scnprintf(buf + len, size - len, "%25s\t%lu\n", "Avg fail kread bytes", in read_file_mod_stats()
379 len += scnprintf(buf + len, size - len, "Duplicate failed modules:\n"); in read_file_mod_stats()
380 len += scnprintf(buf + len, size - len, "%25s\t%15s\t%25s\n", in read_file_mod_stats()
388 len += scnprintf(buf + len, size - len, "%25s\t%15lu\t%25s\n", mod_fail->name, in read_file_mod_stats()
394 ret = simple_read_from_buffer(user_buf, count, ppos, buf, len); in read_file_mod_stats()
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A Ddecompress.c71 if (buf[3] & 0x08) { in module_gzip_header_len()
79 } while (buf[len++] != '\0'); in module_gzip_header_len()
86 const void *buf, size_t size) in module_gzip_decompress() argument
94 gzip_hdr_len = module_gzip_header_len(buf, size); in module_gzip_decompress()
100 s.next_in = buf + gzip_hdr_len; in module_gzip_decompress()
150 const void *buf, size_t size) in module_xz_decompress() argument
160 memcmp(buf, signature, sizeof(signature))) { in module_xz_decompress()
170 xz_buf.in = buf; in module_xz_decompress()
208 const void *buf, size_t size) in module_zstd_decompress() argument
227 zstd_buf.src = buf; in module_zstd_decompress()
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A Dtracking.c50 char buf[MODULE_FLAGS_BUF_SIZE]; in print_unloaded_tainted_modules() local
58 l = module_flags_taint(mod_taint->taints, buf); in print_unloaded_tainted_modules()
59 buf[l++] = '\0'; in print_unloaded_tainted_modules()
60 pr_cont(" %s(%s):%llu", mod_taint->name, buf, in print_unloaded_tainted_modules()
88 char buf[MODULE_FLAGS_BUF_SIZE]; in unloaded_tainted_modules_seq_show() local
92 l = module_flags_taint(mod_taint->taints, buf); in unloaded_tainted_modules_seq_show()
93 buf[l++] = '\0'; in unloaded_tainted_modules_seq_show()
95 seq_printf(m, "%s (%s) %llu", mod_taint->name, buf, mod_taint->count); in unloaded_tainted_modules_seq_show()
/kernel/bpf/
A Dstream.c35 char buf[]; member
131 return (struct bpf_stream_elem *)&stream_page->buf[consumed]; in bpf_stream_page_push_elem()
162 const int max_len = ARRAY_SIZE((struct bpf_bprintf_buffers){}.buf); in bpf_stream_elem_alloc()
322 ret = copy_to_user(buf + pos, elem->str + cons_len, in bpf_stream_read()
349 return bpf_stream_read(stream, buf, len); in bpf_prog_stream_read()
383 ret = bstr_printf(data.buf, MAX_BPRINTF_BUF, fmt__str, data.bin_args); in bpf_stream_vprintk()
385 ret = bpf_stream_push_str(stream, data.buf, ret); in bpf_stream_vprintk()
436 struct bpf_bprintf_buffers *buf; in bpf_stream_stage_printk() local
440 if (bpf_try_get_buffers(&buf)) in bpf_stream_stage_printk()
444 ret = vsnprintf(buf->buf, ARRAY_SIZE(buf->buf), fmt, args); in bpf_stream_stage_printk()
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A Dstackmap.c407 void *buf, u32 size, u64 flags, bool may_fault) in __bpf_get_stack() argument
469 struct bpf_stack_build_id *id_offs = buf; in __bpf_get_stack()
475 memcpy(buf, ips, copy_len); in __bpf_get_stack()
483 stack_map_get_build_id_offset(buf, trace_nr, user, may_fault); in __bpf_get_stack()
486 memset(buf + copy_len, 0, size - copy_len); in __bpf_get_stack()
492 memset(buf, 0, size); in __bpf_get_stack()
496 BPF_CALL_4(bpf_get_stack, struct pt_regs *, regs, void *, buf, u32, size, in BPF_CALL_4() argument
539 res = __bpf_get_stack(regs, task, NULL, buf, size, flags, may_fault); in __bpf_get_task_stack()
545 BPF_CALL_4(bpf_get_task_stack, struct task_struct *, task, void *, buf, in BPF_CALL_4() argument
580 void *, buf, u32, size, u64, flags) in BPF_CALL_4() argument
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/kernel/kcsan/
A Dreport.c201 char buf[64]; in skip_report() local
202 int len = scnprintf(buf, sizeof(buf), "%ps", (void *)top_frame); in skip_report()
204 if (!strnstr(buf, "rcu_", len) && in skip_report()
205 !strnstr(buf, "_rcu", len) && in skip_report()
206 !strnstr(buf, "_srcu", len)) in skip_report()
270 snprintf(buf, sizeof(buf), "task %i", task_id); in get_thread_desc()
271 return buf; in get_thread_desc()
279 char buf[64]; in get_stack_skipnr() local
284 len = scnprintf(buf, sizeof(buf), "%ps", (void *)stack_entries[skip]); in get_stack_skipnr()
287 if (strnstr(buf, "tsan_", len) || in get_stack_skipnr()
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/kernel/printk/
A Dprintk.c688 char *p = buf, *e = buf + size; in msg_add_ext_text()
702 return p - buf; in msg_add_ext_text()
785 if (buf == NULL) in devkmsg_write()
788 buf[len] = '\0'; in devkmsg_write()
790 kfree(buf); in devkmsg_write()
803 line = buf; in devkmsg_write()
819 kfree(buf); in devkmsg_write()
1695 buf += n; in syslog_print()
2504 char buf[512]; in early_printk() local
2511 n = vscnprintf(buf, sizeof(buf), fmt, ap); in early_printk()
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/kernel/sched/
A Ddebug.c130 char buf[64]; in sched_feat_write() local
141 buf[cnt] = 0; in sched_feat_write()
175 char buf[16]; in sched_scaling_write() local
223 char buf[16]; in sched_dynamic_write() local
232 buf[cnt] = 0; in sched_dynamic_write()
483 char buf[32]; in debugfs_fair_server_init() local
485 snprintf(buf, sizeof(buf), "cpu%lu", cpu); in debugfs_fair_server_init()
621 snprintf(buf, sizeof(buf), "cpu%d", cpu); in update_sched_domain_debugfs()
629 snprintf(buf, sizeof(buf), "domain%d", i); in update_sched_domain_debugfs()
720 char *bufend = buf + sizeof(buf) - 3; \
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/kernel/locking/
A Dqspinlock_stat.h39 char buf[64]; in lockevent_read() local
80 len = snprintf(buf, sizeof(buf) - 1, "%llu.%02llu\n", in lockevent_read()
91 len = snprintf(buf, sizeof(buf) - 1, "%llu\n", sum); in lockevent_read()
94 return simple_read_from_buffer(user_buf, count, ppos, buf, len); in lockevent_read()

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