From: Janosch Frank <frankja@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, 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, 4 Mar 2026 13:36:13 +0100 [thread overview]
Message-ID: <84f616de-a2ef-4677-a842-cf5c1a623b8c@linux.ibm.com> (raw)
In-Reply-To: <20260303175206.72836-1-imbrenda@linux.ibm.com>
On 3/3/26 18:52, 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: Janosch Frank <frankja@linux.ibm.com>
next prev parent reply other threads:[~2026-03-04 12:36 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
2026-03-04 12:36 ` Janosch Frank [this message]
2026-03-05 15:44 ` Christian Borntraeger
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