Re: [PATCH] xen/blkfront: fix memory allocation flags in blkfront_setup_indirect()

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On Fri, Apr 03, 2020 at 11:00:34AM +0200, Juergen Gross wrote:
> Commit 1d5c76e664333 ("xen-blkfront: switch kcalloc to kvcalloc for
> large array allocation") didn't fix the issue it was meant to, as the
> flags for allocating the memory are GFP_NOIO, which will lead the
> memory allocation falling back to kmalloc().
> 
> So instead of GFP_NOIO use GFP_KERNEL and do all the memory allocation
> in blkfront_setup_indirect() in a memalloc_noio_{save,restore} section.
> 
> Fixes: 1d5c76e664333 ("xen-blkfront: switch kcalloc to kvcalloc for large 
> array allocation")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>

Acked-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

Thanks!