From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@infradead.org>
Date: Fri, 23 Dec 2022 07:04:37 -0800
Subject: [Cluster-devel] [RFC v3 4/7] iomap: Add iomap_folio_prepare
 helper
In-Reply-To: <20221216150626.670312-5-agruenba@redhat.com>
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 <20221216150626.670312-5-agruenba@redhat.com>
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> +struct folio *iomap_folio_prepare(struct iomap_iter *iter, loff_t pos)
> +{
> +	unsigned fgp = FGP_LOCK | FGP_WRITE | FGP_CREAT | FGP_STABLE | FGP_NOFS;
> +
> +	if (iter->flags & IOMAP_NOWAIT)
> +		fgp |= FGP_NOWAIT;
> +
> +	return __filemap_get_folio(iter->inode->i_mapping, pos >> PAGE_SHIFT,
> +			fgp, mapping_gfp_mask(iter->inode->i_mapping));
> +}
> +EXPORT_SYMBOL(iomap_folio_prepare);

I'd name this __iomap_get_folio to match __filemap_get_folio.
And all iomap exports are EXPORT_SYMBOL_GPL.