linux-kernel - Re: [PATCH v6 07/11] iomap: fix iomap_dio

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Date: Tue, 4 Jun 2024 09:43:31 +0000
From: "Pankaj Raghav (Samsung)" <kernel@...kajraghav.com>
To: Dave Chinner <david@...morbit.com>
Cc: chandan.babu@...cle.com, akpm@...ux-foundation.org, brauner@...nel.org,
	willy@...radead.org, djwong@...nel.org,
	linux-kernel@...r.kernel.org, hare@...e.de, john.g.garry@...cle.com,
	gost.dev@...sung.com, yang@...amperecomputing.com,
	p.raghav@...sung.com, cl@...amperecomputing.com,
	linux-xfs@...r.kernel.org, hch@....de, mcgrof@...nel.org,
	linux-mm@...ck.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH v6 07/11] iomap: fix iomap_dio_zero() for fs bs > system
 page size

> >  static int __init iomap_init(void)
> >  {
> > +	zero_fs_block = alloc_pages(GFP_KERNEL | __GFP_ZERO, ZERO_FSB_ORDER);
> > +	if (!zero_fs_block)
> > +		return -ENOMEM;
> > +
> >  	return bioset_init(&iomap_ioend_bioset, 4 * (PAGE_SIZE / SECTOR_SIZE),
> >  			   offsetof(struct iomap_ioend, io_bio),
> >  			   BIOSET_NEED_BVECS);
> 
> just create an iomap_dio_init() function in iomap/direct-io.c
> and call that from here. Then everything can be private to
> iomap/direct-io.c...

 Sounds good :)