+ samples-add-hung_task-detector-mutex-blocking-sample-fix.patch added to mm-nonmm-unstable branch

+ samples-add-hung_task-detector-mutex-blocking-sample-fix.patch added to mm-nonmm-unstable branch

[Andrew Morton]

The patch titled
     Subject: samples-add-hung_task-detector-mutex-blocking-sample-fix
has been added to the -mm mm-nonmm-unstable branch.  Its filename is
     samples-add-hung_task-detector-mutex-blocking-sample-fix.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/samples-add-hung_task-detector-mutex-blocking-sample-fix.patch

This patch will later appear in the mm-nonmm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days

------------------------------------------------------
From: Andrew Morton <akpm@linux-foundation.org>
Subject: samples-add-hung_task-detector-mutex-blocking-sample-fix
Date: Mon Mar 17 07:53:34 PM PDT 2025

make `hung_task_dir' static

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202503180827.4StpuFrD-lkp@intel.com/
Cc: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 samples/hung_task/Makefile          |    2 +-
 samples/hung_task/hung_task_mutex.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

--- a/samples/hung_task/hung_task_mutex.c~samples-add-hung_task-detector-mutex-blocking-sample-fix
+++ a/samples/hung_task/hung_task_mutex.c
@@ -22,7 +22,7 @@
 
 static const char dummy_string[] = "This is a dummy string.";
 static DEFINE_MUTEX(dummy_mutex);
-struct dentry *hung_task_dir;
+static struct dentry *hung_task_dir;
 
 static ssize_t read_dummy(struct file *file, char __user *user_buf,
 			  size_t count, loff_t *ppos)
--- a/samples/hung_task/Makefile~samples-add-hung_task-detector-mutex-blocking-sample-fix
+++ a/samples/hung_task/Makefile
@@ -1,2 +1,2 @@
 # SPDX-License-Identifier: GPL-2.0-only
-obj-$(CONFIG_SAMPLE_HUNG_TASK) += hung_task_mutex.o
\ No newline at end of file
+obj-$(CONFIG_SAMPLE_HUNG_TASK) += hung_task_mutex.o
_

Patches currently in -mm which might be from akpm@linux-foundation.org are

mm-pgtable-convert-some-architectures-to-use-tlb_remove_ptdesc-v2-fix.patch
hung_task-show-the-blocker-task-if-the-task-is-hung-on-mutex-fix.patch
samples-add-hung_task-detector-mutex-blocking-sample-fix.patch

Re: + samples-add-hung_task-detector-mutex-blocking-sample-fix.patch added to mm-nonmm-unstable branch

[Masami Hiramatsu]

On Mon, 17 Mar 2025 19:54:51 -0700
Andrew Morton <akpm@linux-foundation.org> wrote:

> 
> The patch titled
>      Subject: samples-add-hung_task-detector-mutex-blocking-sample-fix
> has been added to the -mm mm-nonmm-unstable branch.  Its filename is
>      samples-add-hung_task-detector-mutex-blocking-sample-fix.patch
> 
> This patch will shortly appear at
>      https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/samples-add-hung_task-detector-mutex-blocking-sample-fix.patch
> 
> This patch will later appear in the mm-nonmm-unstable branch at
>     git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
> 
> Before you just go and hit "reply", please:
>    a) Consider who else should be cc'ed
>    b) Prefer to cc a suitable mailing list as well
>    c) Ideally: find the original patch on the mailing list and do a
>       reply-to-all to that, adding suitable additional cc's
> 
> *** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
> 
> The -mm tree is included into linux-next via the mm-everything
> branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
> and is updated there every 2-3 working days
> 
> ------------------------------------------------------
> From: Andrew Morton <akpm@linux-foundation.org>
> Subject: samples-add-hung_task-detector-mutex-blocking-sample-fix
> Date: Mon Mar 17 07:53:34 PM PDT 2025
> 
> make `hung_task_dir' static
> 
> Reported-by: kernel test robot <lkp@intel.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202503180827.4StpuFrD-lkp@intel.com/
> Cc: Masami Hiramatsu (Google) <mhiramat@kernel.org>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Thanks for fixing.

Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>

Thank you!

> ---
> 
>  samples/hung_task/Makefile          |    2 +-
>  samples/hung_task/hung_task_mutex.c |    2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> --- a/samples/hung_task/hung_task_mutex.c~samples-add-hung_task-detector-mutex-blocking-sample-fix
> +++ a/samples/hung_task/hung_task_mutex.c
> @@ -22,7 +22,7 @@
>  
>  static const char dummy_string[] = "This is a dummy string.";
>  static DEFINE_MUTEX(dummy_mutex);
> -struct dentry *hung_task_dir;
> +static struct dentry *hung_task_dir;
>  
>  static ssize_t read_dummy(struct file *file, char __user *user_buf,
>  			  size_t count, loff_t *ppos)
> --- a/samples/hung_task/Makefile~samples-add-hung_task-detector-mutex-blocking-sample-fix
> +++ a/samples/hung_task/Makefile
> @@ -1,2 +1,2 @@
>  # SPDX-License-Identifier: GPL-2.0-only
> -obj-$(CONFIG_SAMPLE_HUNG_TASK) += hung_task_mutex.o
> \ No newline at end of file
> +obj-$(CONFIG_SAMPLE_HUNG_TASK) += hung_task_mutex.o
> _
> 
> Patches currently in -mm which might be from akpm@linux-foundation.org are
> 
> mm-pgtable-convert-some-architectures-to-use-tlb_remove_ptdesc-v2-fix.patch
> hung_task-show-the-blocker-task-if-the-task-is-hung-on-mutex-fix.patch
> samples-add-hung_task-detector-mutex-blocking-sample-fix.patch
> 


-- 
Masami Hiramatsu (Google) <mhiramat@kernel.org>