linux-kernel - Re: [PATCH] swiotlb: Return error from swiotlb_init_with

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Message-ID: <20190201165029.GU32526@8bytes.org>
Date:   Fri, 1 Feb 2019 17:50:29 +0100
From:   Joerg Roedel <joro@...tes.org>
To:     Christoph Hellwig <hch@....de>
Cc:     Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Robin Murphy <robin.murphy@....com>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        Joerg Roedel <jroedel@...e.de>,
        Mike Rapoport <rppt@...ux.vnet.ibm.com>
Subject: Re: [PATCH] swiotlb: Return error from swiotlb_init_with_tbl()

On Fri, Feb 01, 2019 at 09:12:08AM +0100, Christoph Hellwig wrote:
> On Thu, Jan 31, 2019 at 05:24:24PM +0100, Joerg Roedel wrote:
> > -	io_tlb_list = memblock_alloc(
> > +	io_tlb_list = memblock_alloc_nopanic(
> >  				PAGE_ALIGN(io_tlb_nslabs * sizeof(int)),
> >  				PAGE_SIZE);
> 
> Mike just killed the _nopanic versions and made the normal ones not
> panic.

This sounds like a change to break quite a couple of places in the
kernel. But okay, it just makes this hunk obsolete.


	Joerg