Re: [GIT PULL v1 17/23] KVM: s390: Fix race in __do_essa()
[email protected] Mon, 03 Aug 2026 17:04:48 +0000
| Newsgroups | org.kernel.vger.kvm,org.kernel.vger.linux-s390 |
|---|---|
| Message-ID | <[email protected]> |
> An unlikely race between __do_essa() and kvm_s390_vm_start_migration(),
> kvm_s390_vm_stop_migration(), or dat_get_cmma() was possible.
>=20
> Fix by locking kvm->slots_arch_lock. Since this is not a hot path, the
> overhead of an additional mutex is negligible.
>=20
> Fixes: e38c884df921 ("KVM: s390: Switch to new gmap")
> Signed-off-by: Claudio Imbrenda <[email protected]>
Sashiko has reviewed this patch and found no issues. It looks great!
--=20
Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20260803160924.2368=
[email protected]?part=3D17