Re: [PATCH] maple_tree: Make mas_prealloc() error checking more generic

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* David Hildenbrand <david@xxxxxxxxxx> [220621 05:09]:
> On 15.06.22 19:42, Liam Howlett wrote:
> > Return the error regardless of what it is.  This is a safer option.
> > 
> > Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
> > ---
> >  lib/maple_tree.c | 5 ++---
> >  1 file changed, 2 insertions(+), 3 deletions(-)
> > 
> > diff --git a/lib/maple_tree.c b/lib/maple_tree.c
> > index f413b6f0da2b..89ff5ef7ee28 100644
> > --- a/lib/maple_tree.c
> > +++ b/lib/maple_tree.c
> > @@ -5670,16 +5670,15 @@ void mas_store_prealloc(struct ma_state *mas, void *entry)
> >   */
> >  int mas_preallocate(struct ma_state *mas, void *entry, gfp_t gfp)
> >  {
> > -
> >  	mas_set_alloc_req(mas, 1 + mas_mt_height(mas) * 3);
> >  	mas_alloc_nodes(mas, gfp);
> > -	if (likely(mas->node != MA_ERROR(-ENOMEM)))
> > +	if (likely(!mas_is_err(mas)))
> >  		return 0;
> >  
> >  	mas_set_alloc_req(mas, 0);
> >  	mas_destroy(mas);
> >  	mas->node = MAS_START;
> > -	return -ENOMEM;
> > +	return xa_err(mas->node);
> >  }
> >  
> >  /*
> 
> Liam, (as asked privately before, I was just too busy to respond :) )
> once all known issues are fixed, can we have a new version posted to
> ease review? That would make my life easier to see what needs review and
> in which order patches apply. Thanks!
> 


Yes.  Thanks for asking.

Andrew didn't want to lose the comments so maybe I'll squash the fixes
into a branch and send that out as a response to v9 if that works?

Cheers,
Liam




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