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| author | Chuang Zhang <zhangchuang3@xiaomi.com> | 2023-04-24 19:05:14 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-05-13 20:38:12 +0900 |
| commit | 800936191a26a5aba5caa3cbd70a4154b45eb94a (patch) | |
| tree | e065547bb8761c23e3f733f0572fc442acb4ca28 /drivers/android | |
| parent | ac9a78681b921877518763ba0e89202254349d1b (diff) | |
| download | linux-stable-800936191a26a5aba5caa3cbd70a4154b45eb94a.tar.gz linux-stable-800936191a26a5aba5caa3cbd70a4154b45eb94a.tar.bz2 linux-stable-800936191a26a5aba5caa3cbd70a4154b45eb94a.zip | |
Binder: Add timestamp to transaction record
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>
Diffstat (limited to 'drivers/android')
| -rw-r--r-- | drivers/android/binder.c | 9 | ||||
| -rw-r--r-- | drivers/android/binder_internal.h | 1 |
2 files changed, 8 insertions, 2 deletions
diff --git a/drivers/android/binder.c b/drivers/android/binder.c index fb56bfc45096..b6413652906e 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -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) { diff --git a/drivers/android/binder_internal.h b/drivers/android/binder_internal.h index 28ef5b3704b1..92e64007f2b0 100644 --- a/drivers/android/binder_internal.h +++ b/drivers/android/binder_internal.h @@ -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; /** |