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From: "Christoph Schlameuss" <schlameuss@linux.ibm.com>
To: "Claudio Imbrenda" <imbrenda@linux.ibm.com>, <kvm@vger.kernel.org>
Cc: <linux-kernel@vger.kernel.org>, <linux-s390@vger.kernel.org>,
	<borntraeger@de.ibm.com>, <frankja@linux.ibm.com>,
	<nsg@linux.ibm.com>, <nrb@linux.ibm.com>, <seiden@linux.ibm.com>,
	<gra@linux.ibm.com>, <schlameuss@linux.ibm.com>,
	<hca@linux.ibm.com>, <david@kernel.org>
Subject: Re: [PATCH v1 1/1] KVM: s390: Fix a deadlock
Date: Wed, 04 Mar 2026 09:07:14 +0100	[thread overview]
Message-ID: <DGTUDR1X33NN.3HIXKRYFGQV77@linux.ibm.com> (raw)
In-Reply-To: <20260303175206.72836-1-imbrenda@linux.ibm.com>

On Tue Mar 3, 2026 at 6:52 PM CET, Claudio Imbrenda wrote:
> In some scenarios, a deadlock can happen, involving _do_shadow_pte().
>
> Convert all usages of pgste_get_lock() to pgste_get_trylock() in
> _do_shadow_pte() and return -EAGAIN. All callers can already deal with
> -EAGAIN being returned.
>
> Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
> Fixes: e38c884df921 ("KVM: s390: Switch to new gmap")
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>

  reply	other threads:[~2026-03-04  8:07 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-03 17:52 [PATCH v1 1/1] KVM: s390: Fix a deadlock Claudio Imbrenda
2026-03-04  8:07 ` Christoph Schlameuss [this message]
2026-03-04 12:36 ` Janosch Frank
2026-03-05 15:44 ` Christian Borntraeger

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