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| author | Oliver Upton <oliver.upton@linux.dev> | 2024-04-22 20:01:51 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2024-04-25 13:19:56 +0100 |
| commit | 481c9ee846d27c72acc0c3bb23025c7fdad8c171 (patch) | |
| tree | 5566885f71c93aee202f7ae1093c2d3f4572740c /include/kvm | |
| parent | ec39bbfd55d07de2e2d4111f35c7ad9523c89ec3 (diff) | |
| download | linux-stable-481c9ee846d27c72acc0c3bb23025c7fdad8c171.tar.gz linux-stable-481c9ee846d27c72acc0c3bb23025c7fdad8c171.tar.bz2 linux-stable-481c9ee846d27c72acc0c3bb23025c7fdad8c171.zip | |
KVM: arm64: vgic-its: Get rid of the lpi_list_lock
The last genuine use case for the lpi_list_lock was the global LPI
translation cache, which has been removed in favor of a per-ITS xarray.
Remove a layer from the locking puzzle by getting rid of it.
vgic_add_lpi() still has a critical section that needs to protect
against the insertion of other LPIs; change it to take the LPI xarray's
xa_lock to retain this property.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240422200158.2606761-13-oliver.upton@linux.dev
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'include/kvm')
| -rw-r--r-- | include/kvm/arm_vgic.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h index 76ed097500c0..50b828b278fd 100644 --- a/include/kvm/arm_vgic.h +++ b/include/kvm/arm_vgic.h @@ -280,9 +280,6 @@ struct vgic_dist { */ u64 propbaser; - /* Protects the lpi_list. */ - raw_spinlock_t lpi_list_lock; - #define LPI_XA_MARK_DEBUG_ITER XA_MARK_0 struct xarray lpi_xa; |