linux-kernel - Re: [PATCH] btrfs: memset cur_trans->delayed

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Date:	Mon, 7 Sep 2015 17:23:53 +0300
From:	Alexandru Moise <00moses.alexander00@...il.com>
To:	David Sterba <dsterba@...e.cz>
Cc:	clm@...com, jbacik@...com, linux-btrfs@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] btrfs: memset cur_trans->delayed_refs to zero

On Mon, Sep 07, 2015 at 04:01:22PM +0200, David Sterba wrote:
> So, updated patches should mention that in the subject eg:
> 
> [PATCH v2] btrfs: memset cur_trans->delayed_refs to zero
> 
> On Mon, Sep 07, 2015 at 04:45:02PM +0300, Alexandru Moise wrote:
> > Use memset() to null out the btrfs_delayed_ref_root of
> > btrfs_transaction instead of setting all the members to 0 by hand.
> > 
> > Signed-off-by: Alexandru Moise <00moses.alexander00@...il.com>
> > ---
> 
> And in this section (ie. after the first ---) put a brief description of
> the changes.
Will do.
> 
> >  fs/btrfs/transaction.c | 12 ++++++------
> >  1 file changed, 6 insertions(+), 6 deletions(-)
> > 
> > diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
> > index 8f259b3..0581fb4 100644
> > --- a/fs/btrfs/transaction.c
> > +++ b/fs/btrfs/transaction.c
> > @@ -224,15 +224,15 @@ loop:
> >  	cur_trans->start_time = get_seconds();
> >  	cur_trans->dirty_bg_run = 0;
> >  
> > +	memset(&cur_trans->delayed_refs, 0, sizeof(cur_trans->delayed_refs));
> > +
> > +	/*
> > +	 * For now RB_ROOT means set to NULL but this could change in
> > +	 * the future
> > +	 */
> 
> I don't think such comment necessary, the code is clear enough without
> it.
> 
> >  	cur_trans->delayed_refs.href_root = RB_ROOT;
> >  	cur_trans->delayed_refs.dirty_extent_root = RB_ROOT;
> 
> .
Alright I can agree to that, thanks.
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