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Date:   Mon, 11 Jan 2021 11:53:42 +0100
From:   Christoph Hellwig <hch@lst.de>
To:     Eric Biggers <ebiggers@kernel.org>
Cc:     linux-fsdevel@vger.kernel.org, linux-xfs@vger.kernel.org,
        linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net,
        Theodore Ts'o <tytso@mit.edu>, Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH v2 11/12] ext4: simplify i_state checks in
 __ext4_update_other_inode_time()
Message-ID: <20210111105342.GE2502@lst.de>
References: <20210109075903.208222-1-ebiggers@kernel.org> <20210109075903.208222-12-ebiggers@kernel.org>
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On Fri, Jan 08, 2021 at 11:59:02PM -0800, Eric Biggers wrote:
>  	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) {

I think a descriptively named inline helper in fs.h would really improve
this..