Re: [PATCH 2/6] ext4: remove tracing for FALLOC_FL_NO_HIDE_STALE

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On Tue, Aug 27, 2024 at 08:50:46AM +0200, Christoph Hellwig wrote:
> FALLOC_FL_NO_HIDE_STALE can't make it past vfs_fallocate (and if the
> flag does what the name implies that's a good thing as it would be
> highly dangerous).  Remove the dead tracing code for it.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> ---
>  include/trace/events/ext4.h | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
> index cc5e9b7b2b44e7..156908641e68f1 100644
> --- a/include/trace/events/ext4.h
> +++ b/include/trace/events/ext4.h
> @@ -91,7 +91,6 @@ TRACE_DEFINE_ENUM(ES_REFERENCED_B);
>  #define show_falloc_mode(mode) __print_flags(mode, "|",		\
>  	{ FALLOC_FL_KEEP_SIZE,		"KEEP_SIZE"},		\
>  	{ FALLOC_FL_PUNCH_HOLE,		"PUNCH_HOLE"},		\
> -	{ FALLOC_FL_NO_HIDE_STALE,	"NO_HIDE_STALE"},	\

If we're going to drop this flag that has never been accepted by any of
the fallocate implementations, then can we remove it from the uapi?

--D

>  	{ FALLOC_FL_COLLAPSE_RANGE,	"COLLAPSE_RANGE"},	\
>  	{ FALLOC_FL_ZERO_RANGE,		"ZERO_RANGE"})
>  
> -- 
> 2.43.0
> 
> 




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