Re: [PATCH 5.10.y 1/2] erofs: remove the occupied parameter from z_erofs_pagevec_enqueue()

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On Tue, Nov 16, 2021 at 09:08:18AM +0800, Gao Xiang wrote:
> From: Yue Hu <huyue2@xxxxxxxxxx>
> 
> commit 7dea3de7d384f4c8156e8bd93112ba6db1eb276c upstream.
> 
> No any behavior to variable occupied in z_erofs_attach_page() which
> is only caller to z_erofs_pagevec_enqueue().
> 
> Link: https://lore.kernel.org/r/20210419102623.2015-1-zbestahu@xxxxxxxxx
> Signed-off-by: Yue Hu <huyue2@xxxxxxxxxx>
> Reviewed-by: Gao Xiang <xiang@xxxxxxxxxx>
> Signed-off-by: Gao Xiang <xiang@xxxxxxxxxx>
> Signed-off-by: Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx>
> ---
> Gao Xiang: Apply this trivial cleanup (no behavior change) for easier
>            backporting.
> 
>  fs/erofs/zdata.c | 4 +---
>  fs/erofs/zpvec.h | 5 +----
>  2 files changed, 2 insertions(+), 7 deletions(-)
> 
> diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
> index 86fd3bf62af6..ca27d3e47857 100644
> --- a/fs/erofs/zdata.c
> +++ b/fs/erofs/zdata.c
> @@ -282,7 +282,6 @@ static int z_erofs_attach_page(struct z_erofs_collector *clt,
>  			       enum z_erofs_page_type type)
>  {
>  	int ret;
> -	bool occupied;
>  
>  	/* give priority for inplaceio */
>  	if (clt->mode >= COLLECT_PRIMARY &&
> @@ -290,8 +289,7 @@ static int z_erofs_attach_page(struct z_erofs_collector *clt,
>  	    z_erofs_try_inplace_io(clt, page))
>  		return 0;
>  
> -	ret = z_erofs_pagevec_enqueue(&clt->vector,
> -				      page, type, &occupied);
> +	ret = z_erofs_pagevec_enqueue(&clt->vector, page, type);
>  	clt->cl->vcnt += (unsigned int)ret;
>  
>  	return ret ? 0 : -EAGAIN;
> diff --git a/fs/erofs/zpvec.h b/fs/erofs/zpvec.h
> index 1d67cbd38704..95a620739e6a 100644
> --- a/fs/erofs/zpvec.h
> +++ b/fs/erofs/zpvec.h
> @@ -107,10 +107,8 @@ static inline void z_erofs_pagevec_ctor_init(struct z_erofs_pagevec_ctor *ctor,
>  
>  static inline bool z_erofs_pagevec_enqueue(struct z_erofs_pagevec_ctor *ctor,
>  					   struct page *page,
> -					   enum z_erofs_page_type type,
> -					   bool *occupied)
> +					   enum z_erofs_page_type type)
>  {
> -	*occupied = false;
>  	if (!ctor->next && type)
>  		if (ctor->index + 1 == ctor->nr)
>  			return false;
> @@ -125,7 +123,6 @@ static inline bool z_erofs_pagevec_enqueue(struct z_erofs_pagevec_ctor *ctor,
>  	/* should remind that collector->next never equal to 1, 2 */
>  	if (type == (uintptr_t)ctor->next) {
>  		ctor->next = page;
> -		*occupied = true;
>  	}
>  	ctor->pages[ctor->index++] = tagptr_fold(erofs_vtptr_t, page, type);
>  	return true;
> -- 
> 2.24.4
> 

All now queued up, thanks.

greg k-h



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