Re: [PATCH 2/2] xfs/43[4-6]: implement impatient module reloading

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On Tue, Dec 03, 2024 at 07:46:05PM -0800, Darrick J. Wong wrote:
> From: Darrick J. Wong <djwong@xxxxxxxxxx>
> 
> These three tests try to reload the xfs module as a cheap way to detect
> leaked inode and dquot objects when the slabs for those object are torn
> down during rmmod.  Removal might not succeed, and we don't really care
> for that case because we still want to exercise the log recovery code.
> 
> However, if (say) the root filesystem is xfs, then removal will never
> succeed.  There's no way that waiting 50 seconds(!) per test is going
> to change that.  Add a silly helper to do it fast or go home.
> 
> Reported-by: sandeen@xxxxxxxxxxx
> Signed-off-by: "Darrick J. Wong" <djwong@xxxxxxxxxx>
> ---
>  common/module |   11 +++++++++++
>  tests/xfs/434 |    2 +-
>  tests/xfs/435 |    2 +-
>  tests/xfs/436 |    2 +-
>  4 files changed, 14 insertions(+), 3 deletions(-)
> 
> 
> diff --git a/common/module b/common/module
> index a8d5f492d3f416..697d76ba718bbc 100644
> --- a/common/module
> +++ b/common/module
> @@ -214,3 +214,14 @@ _patient_rmmod()
>  
>  	return $mod_ret
>  }
> +
> +# Try to reload a filesystem driver.  Don't wait if we can't remove the module,
> +# and don't let failures related to removing the module escape.  The caller
> +# doesn't care if removal doesn't work.
> +_optional_reload_fs_module()
> +{
> +	MODPROBE_PATIENT_RM_TIMEOUT_SECONDS=0 \
> +		MODPROBE_REMOVE_PATIENT="" \
> +		_test_loadable_fs_module "$@" 2>&1 | \
> +		sed -e '/patient module removal/d'
> +}

Thanks for fixing this error report, it looks good to me,

Reviewed-by: Zorro Lang <zlang@xxxxxxxxxx>

> diff --git a/tests/xfs/434 b/tests/xfs/434
> index c5122884324eb0..fe609b138d732b 100755
> --- a/tests/xfs/434
> +++ b/tests/xfs/434
> @@ -74,7 +74,7 @@ _scratch_unmount 2> /dev/null
>  rm -f ${RESULT_DIR}/require_scratch
>  
>  echo "See if we leak"
> -_test_loadable_fs_module "xfs"
> +_optional_reload_fs_module "xfs"
>  
>  # success, all done
>  status=0
> diff --git a/tests/xfs/435 b/tests/xfs/435
> index 0bb5675e1dba23..22c02fbd1289bb 100755
> --- a/tests/xfs/435
> +++ b/tests/xfs/435
> @@ -52,7 +52,7 @@ _scratch_unmount 2> /dev/null
>  rm -f ${RESULT_DIR}/require_scratch
>  
>  echo "See if we leak"
> -_test_loadable_fs_module "xfs"
> +_optional_reload_fs_module "xfs"
>  
>  # success, all done
>  status=0
> diff --git a/tests/xfs/436 b/tests/xfs/436
> index 1f7eb329e1394e..6a9d93d95f432f 100755
> --- a/tests/xfs/436
> +++ b/tests/xfs/436
> @@ -69,7 +69,7 @@ _scratch_unmount 2> /dev/null
>  rm -f ${RESULT_DIR}/require_scratch
>  
>  echo "See if we leak"
> -_test_loadable_fs_module "xfs"
> +_optional_reload_fs_module "xfs"
>  
>  # success, all done
>  status=0
> 





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