linux-kernel - Re: [PATCH v5 02/10] xfs: Switch atomic write size check in xfs_file_write

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Message-ID: <Z9E1AwaFni3o00sZ@infradead.org>
Date: Wed, 12 Mar 2025 00:17:23 -0700
From: Christoph Hellwig <hch@...radead.org>
To: John Garry <john.g.garry@...cle.com>
Cc: brauner@...nel.org, djwong@...nel.org, cem@...nel.org,
	linux-xfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, ojaswin@...ux.ibm.com,
	ritesh.list@...il.com, martin.petersen@...cle.com
Subject: Re: [PATCH v5 02/10] xfs: Switch atomic write size check in
 xfs_file_write_iter()

> +void
> +xfs_get_atomic_write_attr(
> +	struct xfs_inode	*ip,
> +	unsigned int		*unit_min,
> +	unsigned int		*unit_max)
> +{
> +	if (!xfs_inode_can_atomicwrite(ip)) {
> +		*unit_min = *unit_max = 0;
> +		return;
> +	}
> +
> +	*unit_min = *unit_max = ip->i_mount->m_sb.sb_blocksize;

This is a rather ugly interface.  Why not have separate helpers for
the min and max values that can just return the actual values?