Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-16 10:17:32 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Binder: Add timestamp to transaction record

Browse Source 
This patch adds a timestamp field to the binder_transaction
structure to track the time consumed during transmission
when reading binder_transaction records.

Signed-off-by: Chuang Zhang <zhangchuang3@xiaomi.com>
Acked-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/5ac8c0d09392290be789423f0dd78a520b830fab.1682333709.git.zhangchuang3@xiaomi.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chuang Zhang 2023-04-24 19:05:14 +08:00 committed by Greg Kroah-Hartman
parent ac9a78681b
commit 800936191a
2 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/android/binder.c
View File

@ -66,6 +66,7 @@
#include <linux/syscalls.h>
#include <linux/task_work.h>
#include <linux/sizes.h>
#include <linux/ktime.h>
#include <uapi/linux/android/binder.h>
@ -2904,6 +2905,7 @@ static void binder_transaction(struct binder_proc *proc,
binder_size_t last_fixup_min_off = 0;
struct binder_context *context = proc->context;
int t_debug_id = atomic_inc_return(&binder_last_id);
ktime_t t_start_time = ktime_get();
char *secctx = NULL;
u32 secctx_sz = 0;
struct list_head sgc_head;
@ -3145,6 +3147,7 @@ static void binder_transaction(struct binder_proc *proc,
binder_stats_created(BINDER_STAT_TRANSACTION_COMPLETE);
t->debug_id = t_debug_id;
t->start_time = t_start_time;
if (reply)
binder_debug(BINDER_DEBUG_TRANSACTION,
@ -5930,17 +5933,19 @@ static void print_binder_transaction_ilocked(struct seq_file *m,
{
struct binder_proc *to_proc;
struct binder_buffer *buffer = t->buffer;
ktime_t current_time = ktime_get();
spin_lock(&t->lock);
to_proc = t->to_proc;
seq_printf(m,
"%s %d: %pK from %d:%d to %d:%d code %x flags %x pri %ld r%d",
"%s %d: %pK from %d:%d to %d:%d code %x flags %x pri %ld r%d elapsed %lldms",
prefix, t->debug_id, t,
t->from ? t->from->proc->pid : 0,
t->from ? t->from->pid : 0,
to_proc ? to_proc->pid : 0,
t->to_thread ? t->to_thread->pid : 0,
t->code, t->flags, t->priority, t->need_reply);
t->code, t->flags, t->priority, t->need_reply,
ktime_ms_delta(current_time, t->start_time));
spin_unlock(&t->lock);
if (proc != to_proc) {

1
drivers/android/binder_internal.h
View File

@ -528,6 +528,7 @@ struct binder_transaction {
long priority;
long saved_priority;
kuid_t sender_euid;
ktime_t start_time;
struct list_head fd_fixups;
binder_uintptr_t security_ctx;
/**