Re: [PATCH v2 11/12] ext4: simplify i_state checks in __ext4_update_other_inode_time()

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On Fri 08-01-21 23:59:02, Eric Biggers wrote:
> From: Eric Biggers <ebiggers@xxxxxxxxxx>
> 
> Since I_DIRTY_TIME and I_DIRTY_INODE are mutually exclusive in i_state,
> there's no need to check for I_DIRTY_TIME && !I_DIRTY_INODE.  Just check
> for I_DIRTY_TIME.
> 
> Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>

Looks good to me. Feel free to add:

Reviewed-by: Jan Kara <jack@xxxxxxx>

								Honza

> ---
>  fs/ext4/inode.c | 8 +++-----
>  1 file changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
> index 4cc6c7834312f..00bca5c18eb65 100644
> --- a/fs/ext4/inode.c
> +++ b/fs/ext4/inode.c
> @@ -4962,14 +4962,12 @@ static void __ext4_update_other_inode_time(struct super_block *sb,
>  		return;
>  
>  	if ((inode->i_state & (I_FREEING | I_WILL_FREE | I_NEW |
> -			       I_DIRTY_INODE)) ||
> -	    ((inode->i_state & I_DIRTY_TIME) == 0))
> +			       I_DIRTY_TIME)) != I_DIRTY_TIME)
>  		return;
>  
>  	spin_lock(&inode->i_lock);
> -	if (((inode->i_state & (I_FREEING | I_WILL_FREE | I_NEW |
> -				I_DIRTY_INODE)) == 0) &&
> -	    (inode->i_state & I_DIRTY_TIME)) {
> +	if ((inode->i_state & (I_FREEING | I_WILL_FREE | I_NEW |
> +			       I_DIRTY_TIME)) == I_DIRTY_TIME) {
>  		struct ext4_inode_info	*ei = EXT4_I(inode);
>  
>  		inode->i_state &= ~I_DIRTY_TIME;
> -- 
> 2.30.0
> 
-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR



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