Re: [RFC 4/6] ext4: No need to test for block bitmap bits in ext4_mb_mark_bb()

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On Mon 31-01-22 20:46:53, Ritesh Harjani wrote:
> We don't need the return value of mb_test_and_clear_bits() in ext4_mb_mark_bb()
> So simply use mb_clear_bits() instead.
> 
> Signed-off-by: Ritesh Harjani <riteshh@xxxxxxxxxxxxx>

Looks good. I'm rather confused by ext4_set_bits() vs mb_clear_bits()
asymetry but that's not directly related to this patch. Just another
cleanup to do. Feel free to add:

Reviewed-by: Jan Kara <jack@xxxxxxx>

								Honza

> ---
>  fs/ext4/mballoc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
> index 60d32d3d8dc4..2f931575e6c2 100644
> --- a/fs/ext4/mballoc.c
> +++ b/fs/ext4/mballoc.c
> @@ -3943,7 +3943,7 @@ void ext4_mb_mark_bb(struct super_block *sb, ext4_fsblk_t block,
>  	if (state)
>  		ext4_set_bits(bitmap_bh->b_data, blkoff, clen);
>  	else
> -		mb_test_and_clear_bits(bitmap_bh->b_data, blkoff, clen);
> +		mb_clear_bits(bitmap_bh->b_data, blkoff, clen);
>  	if (ext4_has_group_desc_csum(sb) &&
>  	    (gdp->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT))) {
>  		gdp->bg_flags &= cpu_to_le16(~EXT4_BG_BLOCK_UNINIT);
> -- 
> 2.31.1
> 
-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR



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