Hi Greg,
On Wed, Mar 02, 2022 at 11:29:00AM +0100, Greg KH wrote:
> On Tue, Mar 01, 2022 at 04:11:13PM +1200, Herbert Xu wrote:
> > On Mon, Feb 28, 2022 at 05:12:20PM -0800, Linus Torvalds wrote:
> > >
> > > It sounds like it was incidental and almost accidental that it fixed
> > > that thing, and nobody realized it should perhaps be also moved to
> > > stable.
> >
> > Yes this was incidental. The patch in question fixes an issue in
> > OOM situations where drivers that must allocate memory on each
> > request may lead to dead-lock so it's not really targeted at qat.
>
> Ok, so what commits should I backport to kernels older than 5.10 to
> resolve this?
Is it possible to wait for a set that resolves the problem rather than
backporting the patches that disables the use-case?
I have a patchset that fixes the actual issue and we are doing an
internal review before submission to the mailing list.
I should be able to send a V1 out between today and tomorrow.
If not, then these are the patches that should be backported:
7bcb2c99f8ed crypto: algapi - use common mechanism for inheriting flags
2eb27c11937e crypto: algapi - add NEED_FALLBACK to INHERITED_FLAGS
fbb6cda44190 crypto: algapi - introduce the flag CRYPTO_ALG_ALLOCATES_MEMORY
b8aa7dc5c753 crypto: drivers - set the flag CRYPTO_ALG_ALLOCATES_MEMORY
cd74693870fb dm crypt: don't use drivers that have CRYPTO_ALG_ALLOCATES_MEMORY
Herbert, correct me if I'm wrong here.
Thanks,
--
Giovanni
