Re: [PATCH] vfs: return -EOVERFLOW in generic_remap_checks() when overflow check fails

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On Fri, 2024-09-06 at 12:29 +0200, Jan Kara wrote:

Sure, I will include this patch in the patch set for the next version. 
But I think it maybe deserves a separate patch, rather than being 
integrated into the original patch?

> On Fri 06-09-24 11:32:02, Julian Sun wrote:
> > Keep it consistent with the handling of the same check within
> > generic_copy_file_checks().
> > Also, returning -EOVERFLOW in this case is more appropriate.
> > 
> > Signed-off-by: Julian Sun <sunjunchao2870@xxxxxxxxx>
> 
> Well, you were already changing this condition here [1] so maybe just
> update the errno in that patch as well? No need to generate unnecessary
> patch conflicts...
> 
> [1] https://lore.kernel.org/all/20240905121545.ma6zdnswn5s72byb@quack3
> 
>                                                                 Honza
> 
> > ---
> >  fs/remap_range.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/fs/remap_range.c b/fs/remap_range.c
> > index 28246dfc8485..97171f2191aa 100644
> > --- a/fs/remap_range.c
> > +++ b/fs/remap_range.c
> > @@ -46,7 +46,7 @@ static int generic_remap_checks(struct file *file_in, loff_t pos_in,
> >  
> >         /* Ensure offsets don't wrap. */
> >         if (pos_in + count < pos_in || pos_out + count < pos_out)
> > -               return -EINVAL;
> > +               return -EOVERFLOW;
> >  
> >         size_in = i_size_read(inode_in);
> >         size_out = i_size_read(inode_out);
> > -- 
> > 2.39.2
> > 

Thanks,
-- 
Julian Sun <sunjunchao2870@xxxxxxxxx>





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