On Tue, Jan 8, 2013 at 5:07 PM, Yinghai Lu <ying...@kernel.org> wrote: > On Tue, Jan 8, 2013 at 4:58 PM, Eric W. Biederman <ebied...@xmission.com> > wrote: > >> >> So instead we need to say? >> >> + if (no_iotlb_memory) >> + panic("Cannot allocate SWIOTLB buffer"); >> + >> >> Which is just making the panic a little later than it used to be and >> seems completely reasonable. > > yes, looks some driver just use map_single without checking results.
update one. later could have another patch to shrink size...
swiotlb.patch
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