From: Heiko Carstens <hca@linux.ibm.com>
To: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>,
Sven Schnelle <svens@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Janosch Frank <frankja@linux.ibm.com>,
Claudio Imbrenda <imbrenda@linux.ibm.com>,
David Hildenbrand <david@kernel.org>,
linux-s390@vger.kernel.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 1/8] KVM: s390: pv: Use VM_SPARSE area for guest variable storage area
Date: Mon, 20 Jul 2026 12:15:33 +0200 [thread overview]
Message-ID: <20260720101533.15865C3b-hca@linux.ibm.com> (raw)
In-Reply-To: <30f0084c-5621-4602-8c0a-9082dd9d3d43@linux.ibm.com>
On Mon, Jul 20, 2026 at 11:56:36AM +0200, Christian Borntraeger wrote:
> [..]> +static int uv_free_range_cb(pte_t *ptep, unsigned long addr, void *data)
> > +{
> > + pte_t pte = ptep_get(ptep);
> > +
> > + if (!pte_present(pte))
> > + return 0;
> I guess we do not need it today, but it certainly does not hurt?
It is not needed, just a sanity check.
next prev parent reply other threads:[~2026-07-20 10:15 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-20 8:58 [PATCH v4 0/8] s390: Reintroduce support for DCACHE_WORD_ACCESS Heiko Carstens
2026-07-20 8:58 ` [PATCH v4 1/8] KVM: s390: pv: Use VM_SPARSE area for guest variable storage area Heiko Carstens
2026-07-20 9:14 ` sashiko-bot
2026-07-20 9:56 ` Christian Borntraeger
2026-07-20 10:15 ` Heiko Carstens [this message]
2026-07-20 8:58 ` [PATCH v4 2/8] s390/mm: Add missing mm check to do_secure_storage_access() Heiko Carstens
2026-07-20 9:12 ` sashiko-bot
2026-07-20 10:44 ` Christian Borntraeger
2026-07-20 8:58 ` [PATCH v4 3/8] s390/mm: Use lock_mm_and_find_vma() in do_secure_storage_access() Heiko Carstens
2026-07-20 9:19 ` sashiko-bot
2026-07-20 10:45 ` Christian Borntraeger
2026-07-20 8:58 ` [PATCH v4 4/8] s390/mm: Fix handling of vmalloc area " Heiko Carstens
2026-07-20 9:23 ` sashiko-bot
2026-07-20 10:22 ` Christian Borntraeger
2026-07-20 8:58 ` [PATCH v4 5/8] s390/mm: Remove folio handling for kernel faults " Heiko Carstens
2026-07-20 9:30 ` sashiko-bot
2026-07-20 10:53 ` Christian Borntraeger
2026-07-20 8:58 ` [PATCH v4 6/8] s390/mm: Use handle_fault_error() " Heiko Carstens
2026-07-20 9:26 ` sashiko-bot
2026-07-20 8:58 ` [PATCH v4 7/8] s390/mm: Use goto statement " Heiko Carstens
2026-07-20 9:36 ` sashiko-bot
2026-07-20 10:36 ` Christian Borntraeger
2026-07-20 8:58 ` [PATCH v4 8/8] s390: Add support for DCACHE_WORD_ACCESS (again) Heiko Carstens
2026-07-20 9:48 ` sashiko-bot
2026-07-20 9:03 ` [PATCH v4 0/8] s390: Reintroduce support for DCACHE_WORD_ACCESS Christian Borntraeger
2026-07-20 9:40 ` Heiko Carstens
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