linux-ext4 - Re: [PATCH 6/8] ext4: make the bitmap read routines return real error codes

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Date:	Thu, 15 Oct 2015 08:02:08 -0700
From:	"Darrick J. Wong" <darrick.wong@...cle.com>
To:	"Theodore Ts'o" <tytso@....edu>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH 6/8] ext4: make the bitmap read routines return real
 error codes

On Thu, Oct 15, 2015 at 10:57:29AM -0400, Theodore Ts'o wrote:
> On Mon, Oct 12, 2015 at 02:54:58PM -0700, Darrick J. Wong wrote:
> >   * Return buffer_head on success or NULL in case of failure.
> >   */
> > -struct buffer_head *
> > -ext4_read_block_bitmap_nowait(struct super_block *sb, ext4_group_t block_group)
> > +int
> > +ext4_read_block_bitmap_nowait(struct super_block *sb, ext4_group_t block_group,
> > +			      struct buffer_head **bbh)
> 
> 
> Is there a reason why you didn't use the ERR_PTR convention?

Hah!  I plumb forgot that existed. :(

Will send a revision with that fixed, thanks for catching it.

--D

> 
> >  
> > -struct buffer_head *
> > -ext4_read_block_bitmap(struct super_block *sb, ext4_group_t block_group)
> > +int
> > +ext4_read_block_bitmap(struct super_block *sb, ext4_group_t block_group,
> > +		       struct buffer_head **bbh)
> 
> And here....
> 
> >   * Return buffer_head of bitmap on success or NULL.
> >   */
> > -static struct buffer_head *
> > -ext4_read_inode_bitmap(struct super_block *sb, ext4_group_t block_group)
> > +static int
> > +ext4_read_inode_bitmap(struct super_block *sb, ext4_group_t block_group,
> > +		       struct buffer_head **bbh)
> >  {
> 
> And here....
> 
> 					- Ted
> 					
> --
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