diff mbox series

[v2,1/2] mm: mmap_lock: remove redundant "\n" in TP_printk

Message ID 20211009071105.69544-1-ligang.bdlg@bytedance.com (mailing list archive)
State New
Headers show
Series mm: mmap_lock: some improvements | expand

Commit Message

Gang Li Oct. 9, 2021, 7:11 a.m. UTC
Ftrace core will add "\n" automatically on print. "\n" in TP_printk
will create blank line, so remove it.

Signed-off-by: Gang Li <ligang.bdlg@bytedance.com>
---
 include/trace/events/mmap_lock.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Comments

Steven Rostedt Oct. 10, 2021, 9:45 p.m. UTC | #1
On Sat,  9 Oct 2021 15:11:05 +0800
Gang Li <ligang.bdlg@bytedance.com> wrote:

> Ftrace core will add "\n" automatically on print. "\n" in TP_printk
> will create blank line, so remove it.
> 

Yes, thank you!

Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

-- Steve

> Signed-off-by: Gang Li <ligang.bdlg@bytedance.com>
> ---
>  include/trace/events/mmap_lock.h | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/include/trace/events/mmap_lock.h b/include/trace/events/mmap_lock.h
> index 0abff67b96f0..5f980c92e3e9 100644
> --- a/include/trace/events/mmap_lock.h
> +++ b/include/trace/events/mmap_lock.h
> @@ -32,7 +32,7 @@ TRACE_EVENT_FN(mmap_lock_start_locking,
>  	),
>  
>  	TP_printk(
> -		"mm=%p memcg_path=%s write=%s\n",
> +		"mm=%p memcg_path=%s write=%s",
>  		__entry->mm,
>  		__get_str(memcg_path),
>  		__entry->write ? "true" : "false"
> @@ -63,7 +63,7 @@ TRACE_EVENT_FN(mmap_lock_acquire_returned,
>  	),
>  
>  	TP_printk(
> -		"mm=%p memcg_path=%s write=%s success=%s\n",
> +		"mm=%p memcg_path=%s write=%s success=%s",
>  		__entry->mm,
>  		__get_str(memcg_path),
>  		__entry->write ? "true" : "false",
> @@ -92,7 +92,7 @@ TRACE_EVENT_FN(mmap_lock_released,
>  	),
>  
>  	TP_printk(
> -		"mm=%p memcg_path=%s write=%s\n",
> +		"mm=%p memcg_path=%s write=%s",
>  		__entry->mm,
>  		__get_str(memcg_path),
>  		__entry->write ? "true" : "false"
Vlastimil Babka Oct. 11, 2021, 7:54 a.m. UTC | #2
On 10/9/21 09:11, Gang Li wrote:
> Ftrace core will add "\n" automatically on print. "\n" in TP_printk
> will create blank line, so remove it.
> 
> Signed-off-by: Gang Li <ligang.bdlg@bytedance.com>

Acked-by: Vlastimil Babka <vbabka@suse.cz>

> ---
>  include/trace/events/mmap_lock.h | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/include/trace/events/mmap_lock.h b/include/trace/events/mmap_lock.h
> index 0abff67b96f0..5f980c92e3e9 100644
> --- a/include/trace/events/mmap_lock.h
> +++ b/include/trace/events/mmap_lock.h
> @@ -32,7 +32,7 @@ TRACE_EVENT_FN(mmap_lock_start_locking,
>  	),
>  
>  	TP_printk(
> -		"mm=%p memcg_path=%s write=%s\n",
> +		"mm=%p memcg_path=%s write=%s",
>  		__entry->mm,
>  		__get_str(memcg_path),
>  		__entry->write ? "true" : "false"
> @@ -63,7 +63,7 @@ TRACE_EVENT_FN(mmap_lock_acquire_returned,
>  	),
>  
>  	TP_printk(
> -		"mm=%p memcg_path=%s write=%s success=%s\n",
> +		"mm=%p memcg_path=%s write=%s success=%s",
>  		__entry->mm,
>  		__get_str(memcg_path),
>  		__entry->write ? "true" : "false",
> @@ -92,7 +92,7 @@ TRACE_EVENT_FN(mmap_lock_released,
>  	),
>  
>  	TP_printk(
> -		"mm=%p memcg_path=%s write=%s\n",
> +		"mm=%p memcg_path=%s write=%s",
>  		__entry->mm,
>  		__get_str(memcg_path),
>  		__entry->write ? "true" : "false"
>
diff mbox series

Patch

diff --git a/include/trace/events/mmap_lock.h b/include/trace/events/mmap_lock.h
index 0abff67b96f0..5f980c92e3e9 100644
--- a/include/trace/events/mmap_lock.h
+++ b/include/trace/events/mmap_lock.h
@@ -32,7 +32,7 @@  TRACE_EVENT_FN(mmap_lock_start_locking,
 	),
 
 	TP_printk(
-		"mm=%p memcg_path=%s write=%s\n",
+		"mm=%p memcg_path=%s write=%s",
 		__entry->mm,
 		__get_str(memcg_path),
 		__entry->write ? "true" : "false"
@@ -63,7 +63,7 @@  TRACE_EVENT_FN(mmap_lock_acquire_returned,
 	),
 
 	TP_printk(
-		"mm=%p memcg_path=%s write=%s success=%s\n",
+		"mm=%p memcg_path=%s write=%s success=%s",
 		__entry->mm,
 		__get_str(memcg_path),
 		__entry->write ? "true" : "false",
@@ -92,7 +92,7 @@  TRACE_EVENT_FN(mmap_lock_released,
 	),
 
 	TP_printk(
-		"mm=%p memcg_path=%s write=%s\n",
+		"mm=%p memcg_path=%s write=%s",
 		__entry->mm,
 		__get_str(memcg_path),
 		__entry->write ? "true" : "false"