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WSL2-Linux-Kernel
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trace: Change struct trace_event callbacks parameter list 

Impact: API change

The trace_seq and trace_entry are in trace_iterator, where there are
more fields that may be needed by tracers, so just pass the
tracer_iterator as is already the case for struct tracer->print_line.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Arnaldo Carvalho de Melo 2009-02-02 20:30:12 -02:00 коммит произвёл Ingo Molnar
Родитель c4a8e8be2d
Коммит 2c9b238eb3
5 изменённых файлов: 76 добавлений и 94 удалений
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8
block/blktrace.c
Просмотреть файл

@ -1140,10 +1140,10 @@ static struct {
[__BLK_TA_REMAP] = {{ "A", "remap" }, blk_log_remap },
};
static int blk_trace_event_print(struct trace_seq *s, struct trace_entry *ent,
int flags)
static int blk_trace_event_print(struct trace_iterator *iter, int flags)
{
const struct blk_io_trace *t = (struct blk_io_trace *)ent;
struct trace_seq *s = &iter->seq;
const struct blk_io_trace *t = (struct blk_io_trace *)iter->ent;
const u16 what = t->action & ((1 << BLK_TC_SHIFT) - 1);
int ret;
@ -1153,7 +1153,7 @@ static int blk_trace_event_print(struct trace_seq *s, struct trace_entry *ent,
const bool long_act = !!(trace_flags & TRACE_ITER_VERBOSE);
ret = blk_log_action_seq(s, t, what2act[what].act[long_act]);
if (ret)
ret = what2act[what].print(s, ent);
ret = what2act[what].print(s, iter->ent);
}
return ret ? TRACE_TYPE_HANDLED : TRACE_TYPE_PARTIAL_LINE;

10
kernel/trace/trace.c
Просмотреть файл

@ -1388,7 +1388,7 @@ static enum print_line_t print_lat_fmt(struct trace_iterator *iter)
}
if (event && event->latency_trace) {
ret = event->latency_trace(s, entry, sym_flags);
ret = event->latency_trace(iter, sym_flags);
if (ret)
return ret;
return TRACE_TYPE_HANDLED;
@ -1419,7 +1419,7 @@ static enum print_line_t print_trace_fmt(struct trace_iterator *iter)
}
if (event && event->trace) {
ret = event->trace(s, entry, sym_flags);
ret = event->trace(iter, sym_flags);
if (ret)
return ret;
return TRACE_TYPE_HANDLED;
@ -1449,7 +1449,7 @@ static enum print_line_t print_raw_fmt(struct trace_iterator *iter)
event = ftrace_find_event(entry->type);
if (event && event->raw) {
ret = event->raw(s, entry, 0);
ret = event->raw(iter, 0);
if (ret)
return ret;
return TRACE_TYPE_HANDLED;
@ -1478,7 +1478,7 @@ static enum print_line_t print_hex_fmt(struct trace_iterator *iter)
event = ftrace_find_event(entry->type);
if (event && event->hex)
event->hex(s, entry, 0);
event->hex(iter, 0);
SEQ_PUT_FIELD_RET(s, newline);
@ -1517,7 +1517,7 @@ static enum print_line_t print_bin_fmt(struct trace_iterator *iter)
event = ftrace_find_event(entry->type);
if (event && event->binary)
event->binary(s, entry, 0);
event->binary(iter, 0);
return TRACE_TYPE_HANDLED;
}

7
kernel/trace/trace_branch.c
Просмотреть файл

@ -160,14 +160,13 @@ trace_print_print(struct trace_seq *s, struct trace_entry *entry, int flags)
return TRACE_TYPE_PARTIAL_LINE;
}
static int
trace_branch_print(struct trace_seq *s, struct trace_entry *entry, int flags)
static int trace_branch_print(struct trace_iterator *iter, int flags)
{
struct trace_branch *field;
trace_assign_type(field, entry);
trace_assign_type(field, iter->ent);
if (trace_seq_printf(s, "[%s] %s:%s:%d\n",
if (trace_seq_printf(&iter->seq, "[%s] %s:%s:%d\n",
field->correct ? " ok " : " MISS ",
field->func,
field->file,

139
kernel/trace/trace_output.c
Просмотреть файл

@ -484,19 +484,18 @@ int unregister_ftrace_event(struct trace_event *event)
* Standard events
*/
int
trace_nop_print(struct trace_seq *s, struct trace_entry *entry, int flags)
int trace_nop_print(struct trace_iterator *iter, int flags)
{
return 0;
}
/* TRACE_FN */
static int
trace_fn_latency(struct trace_seq *s, struct trace_entry *entry, int flags)
static int trace_fn_latency(struct trace_iterator *iter, int flags)
{
struct ftrace_entry *field;
struct trace_seq *s = &iter->seq;
trace_assign_type(field, entry);
trace_assign_type(field, iter->ent);
if (!seq_print_ip_sym(s, field->ip, flags))
goto partial;
@ -513,12 +512,12 @@ trace_fn_latency(struct trace_seq *s, struct trace_entry *entry, int flags)
return TRACE_TYPE_PARTIAL_LINE;
}
static int
trace_fn_trace(struct trace_seq *s, struct trace_entry *entry, int flags)
static int trace_fn_trace(struct trace_iterator *iter, int flags)
{
struct ftrace_entry *field;
struct trace_seq *s = &iter->seq;
trace_assign_type(field, entry);
trace_assign_type(field, iter->ent);
if (!seq_print_ip_sym(s, field->ip, flags))
goto partial;
@ -540,14 +539,13 @@ trace_fn_trace(struct trace_seq *s, struct trace_entry *entry, int flags)
return TRACE_TYPE_PARTIAL_LINE;
}
static int
trace_fn_raw(struct trace_seq *s, struct trace_entry *entry, int flags)
static int trace_fn_raw(struct trace_iterator *iter, int flags)
{
struct ftrace_entry *field;
trace_assign_type(field, entry);
trace_assign_type(field, iter->ent);
if (!trace_seq_printf(s, "%lx %lx\n",
if (!trace_seq_printf(&iter->seq, "%lx %lx\n",
field->ip,
field->parent_ip))
return TRACE_TYPE_PARTIAL_LINE;
@ -555,12 +553,12 @@ trace_fn_raw(struct trace_seq *s, struct trace_entry *entry, int flags)
return 0;
}
static int
trace_fn_hex(struct trace_seq *s, struct trace_entry *entry, int flags)
static int trace_fn_hex(struct trace_iterator *iter, int flags)
{
struct ftrace_entry *field;
struct trace_seq *s = &iter->seq;
trace_assign_type(field, entry);
trace_assign_type(field, iter->ent);
SEQ_PUT_HEX_FIELD_RET(s, field->ip);
SEQ_PUT_HEX_FIELD_RET(s, field->parent_ip);
@ -568,12 +566,12 @@ trace_fn_hex(struct trace_seq *s, struct trace_entry *entry, int flags)
return 0;
}
static int
trace_fn_bin(struct trace_seq *s, struct trace_entry *entry, int flags)
static int trace_fn_bin(struct trace_iterator *iter, int flags)
{
struct ftrace_entry *field;
struct trace_seq *s = &iter->seq;
trace_assign_type(field, entry);
trace_assign_type(field, iter->ent);
SEQ_PUT_FIELD_RET(s, field->ip);
SEQ_PUT_FIELD_RET(s, field->parent_ip);
@ -591,20 +589,19 @@ static struct trace_event trace_fn_event = {
};
/* TRACE_CTX an TRACE_WAKE */
static int
trace_ctxwake_print(struct trace_seq *s, struct trace_entry *entry, int flags,
char *delim)
static int trace_ctxwake_print(struct trace_iterator *iter, char *delim)
{
struct ctx_switch_entry *field;
char *comm;
int S, T;
trace_assign_type(field, entry);
trace_assign_type(field, iter->ent);
T = task_state_char(field->next_state);
S = task_state_char(field->prev_state);
comm = trace_find_cmdline(field->next_pid);
if (!trace_seq_printf(s, " %5d:%3d:%c %s [%03d] %5d:%3d:%c %s\n",
if (!trace_seq_printf(&iter->seq,
" %5d:%3d:%c %s [%03d] %5d:%3d:%c %s\n",
field->prev_pid,
field->prev_prio,
S, delim,
@ -617,31 +614,27 @@ trace_ctxwake_print(struct trace_seq *s, struct trace_entry *entry, int flags,
return 0;
}
static int
trace_ctx_print(struct trace_seq *s, struct trace_entry *entry, int flags)
static int trace_ctx_print(struct trace_iterator *iter, int flags)
{
return trace_ctxwake_print(s, entry, flags, "==>");
return trace_ctxwake_print(iter, "==>");
}
static int
trace_wake_print(struct trace_seq *s, struct trace_entry *entry, int flags)
static int trace_wake_print(struct trace_iterator *iter, int flags)
{
return trace_ctxwake_print(s, entry, flags, " +");
return trace_ctxwake_print(iter, " +");
}
static int
trace_ctxwake_raw(struct trace_seq *s, struct trace_entry *entry, int flags,
char S)
static int trace_ctxwake_raw(struct trace_iterator *iter, char S)
{
struct ctx_switch_entry *field;
int T;
trace_assign_type(field, entry);
trace_assign_type(field, iter->ent);
if (!S)
task_state_char(field->prev_state);
T = task_state_char(field->next_state);
if (!trace_seq_printf(s, "%d %d %c %d %d %d %c\n",
if (!trace_seq_printf(&iter->seq, "%d %d %c %d %d %d %c\n",
field->prev_pid,
field->prev_prio,
S,
@ -654,27 +647,24 @@ trace_ctxwake_raw(struct trace_seq *s, struct trace_entry *entry, int flags,
return 0;
}
static int
trace_ctx_raw(struct trace_seq *s, struct trace_entry *entry, int flags)
static int trace_ctx_raw(struct trace_iterator *iter, int flags)
{
return trace_ctxwake_raw(s, entry, flags, 0);
return trace_ctxwake_raw(iter, 0);
}
static int
trace_wake_raw(struct trace_seq *s, struct trace_entry *entry, int flags)
static int trace_wake_raw(struct trace_iterator *iter, int flags)
{
return trace_ctxwake_raw(s, entry, flags, '+');
return trace_ctxwake_raw(iter, '+');
}
static int
trace_ctxwake_hex(struct trace_seq *s, struct trace_entry *entry, int flags,
char S)
static int trace_ctxwake_hex(struct trace_iterator *iter, char S)
{
struct ctx_switch_entry *field;
struct trace_seq *s = &iter->seq;
int T;
trace_assign_type(field, entry);
trace_assign_type(field, iter->ent);
if (!S)
task_state_char(field->prev_state);
@ -691,24 +681,22 @@ trace_ctxwake_hex(struct trace_seq *s, struct trace_entry *entry, int flags,
return 0;
}
static int
trace_ctx_hex(struct trace_seq *s, struct trace_entry *entry, int flags)
static int trace_ctx_hex(struct trace_iterator *iter, int flags)
{
return trace_ctxwake_hex(s, entry, flags, 0);
return trace_ctxwake_hex(iter, 0);
}
static int
trace_wake_hex(struct trace_seq *s, struct trace_entry *entry, int flags)
static int trace_wake_hex(struct trace_iterator *iter, int flags)
{
return trace_ctxwake_hex(s, entry, flags, '+');
return trace_ctxwake_hex(iter, '+');
}
static int
trace_ctxwake_bin(struct trace_seq *s, struct trace_entry *entry, int flags)
static int trace_ctxwake_bin(struct trace_iterator *iter, int flags)
{
struct ctx_switch_entry *field;
struct trace_seq *s = &iter->seq;
trace_assign_type(field, entry);
trace_assign_type(field, iter->ent);
SEQ_PUT_FIELD_RET(s, field->prev_pid);
SEQ_PUT_FIELD_RET(s, field->prev_prio);
@ -739,14 +727,13 @@ static struct trace_event trace_wake_event = {
};
/* TRACE_SPECIAL */
static int
trace_special_print(struct trace_seq *s, struct trace_entry *entry, int flags)
static int trace_special_print(struct trace_iterator *iter, int flags)
{
struct special_entry *field;
trace_assign_type(field, entry);
trace_assign_type(field, iter->ent);
if (!trace_seq_printf(s, "# %ld %ld %ld\n",
if (!trace_seq_printf(&iter->seq, "# %ld %ld %ld\n",
field->arg1,
field->arg2,
field->arg3))
@ -755,12 +742,12 @@ trace_special_print(struct trace_seq *s, struct trace_entry *entry, int flags)
return 0;
}
static int
trace_special_hex(struct trace_seq *s, struct trace_entry *entry, int flags)
static int trace_special_hex(struct trace_iterator *iter, int flags)
{
struct special_entry *field;
struct trace_seq *s = &iter->seq;
trace_assign_type(field, entry);
trace_assign_type(field, iter->ent);
SEQ_PUT_HEX_FIELD_RET(s, field->arg1);
SEQ_PUT_HEX_FIELD_RET(s, field->arg2);
@ -769,12 +756,12 @@ trace_special_hex(struct trace_seq *s, struct trace_entry *entry, int flags)
return 0;
}
static int
trace_special_bin(struct trace_seq *s, struct trace_entry *entry, int flags)
static int trace_special_bin(struct trace_iterator *iter, int flags)
{
struct special_entry *field;
struct trace_seq *s = &iter->seq;
trace_assign_type(field, entry);
trace_assign_type(field, iter->ent);
SEQ_PUT_FIELD_RET(s, field->arg1);
SEQ_PUT_FIELD_RET(s, field->arg2);
@ -794,13 +781,13 @@ static struct trace_event trace_special_event = {
/* TRACE_STACK */
static int
trace_stack_print(struct trace_seq *s, struct trace_entry *entry, int flags)
static int trace_stack_print(struct trace_iterator *iter, int flags)
{
struct stack_entry *field;
struct trace_seq *s = &iter->seq;
int i;
trace_assign_type(field, entry);
trace_assign_type(field, iter->ent);
for (i = 0; i < FTRACE_STACK_ENTRIES; i++) {
if (i) {
@ -830,13 +817,12 @@ static struct trace_event trace_stack_event = {
};
/* TRACE_USER_STACK */
static int
trace_user_stack_print(struct trace_seq *s, struct trace_entry *entry,
int flags)
static int trace_user_stack_print(struct trace_iterator *iter, int flags)
{
struct userstack_entry *field;
struct trace_seq *s = &iter->seq;
trace_assign_type(field, entry);
trace_assign_type(field, iter->ent);
if (!seq_print_userip_objs(field, s, flags))
goto partial;
@ -860,12 +846,12 @@ static struct trace_event trace_user_stack_event = {
};
/* TRACE_PRINT */
static int
trace_print_print(struct trace_seq *s, struct trace_entry *entry, int flags)
static int trace_print_print(struct trace_iterator *iter, int flags)
{
struct print_entry *field;
struct trace_seq *s = &iter->seq;
trace_assign_type(field, entry);
trace_assign_type(field, iter->ent);
if (!seq_print_ip_sym(s, field->ip, flags))
goto partial;
@ -879,14 +865,13 @@ trace_print_print(struct trace_seq *s, struct trace_entry *entry, int flags)
return TRACE_TYPE_PARTIAL_LINE;
}
static int
trace_print_raw(struct trace_seq *s, struct trace_entry *entry, int flags)
static int trace_print_raw(struct trace_iterator *iter, int flags)
{
struct print_entry *field;
trace_assign_type(field, entry);
trace_assign_type(field, iter->ent);
if (!trace_seq_printf(s, "# %lx %s", field->ip, field->buf))
if (!trace_seq_printf(&iter->seq, "# %lx %s", field->ip, field->buf))
goto partial;
return 0;

6
kernel/trace/trace_output.h
Просмотреть файл

@ -3,8 +3,7 @@
#include "trace.h"
typedef int (*trace_print_func)(struct trace_seq *s, struct trace_entry *entry,
int flags);
typedef int (*trace_print_func)(struct trace_iterator *iter, int flags);
struct trace_event {
struct hlist_node node;
@ -40,8 +39,7 @@ struct trace_event *ftrace_find_event(int type);
int register_ftrace_event(struct trace_event *event);
int unregister_ftrace_event(struct trace_event *event);
int
trace_nop_print(struct trace_seq *s, struct trace_entry *entry, int flags);
int trace_nop_print(struct trace_iterator *iter, int flags);
#define MAX_MEMHEX_BYTES 8
#define HEX_CHARS (MAX_MEMHEX_BYTES*2 + 1)