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| author | Oliver Upton <oliver.upton@linux.dev> | 2024-02-21 05:42:49 +0000 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2024-02-23 21:46:02 +0000 |
| commit | 05f4d4f5d462618150a199bf26fd442b54b5d41a (patch) | |
| tree | dbe257e3dd1c896eed33649aea1101b46cf42abf /include/kvm | |
| parent | 9880835af78e05eb8e1f2f330c11840d96f815a3 (diff) | |
| download | linux-05f4d4f5d462618150a199bf26fd442b54b5d41a.tar.gz linux-05f4d4f5d462618150a199bf26fd442b54b5d41a.tar.bz2 linux-05f4d4f5d462618150a199bf26fd442b54b5d41a.zip | |
KVM: arm64: vgic: Use atomics to count LPIs
Switch to using atomics for LPI accounting, allowing vgic_irq references
to be dropped in parallel.
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240221054253.3848076-7-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Diffstat (limited to 'include/kvm')
| -rw-r--r-- | include/kvm/arm_vgic.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h index aeff363e3ba6..71e9d719533b 100644 --- a/include/kvm/arm_vgic.h +++ b/include/kvm/arm_vgic.h @@ -273,10 +273,10 @@ struct vgic_dist { */ u64 propbaser; - /* Protects the lpi_list and the count value below. */ + /* Protects the lpi_list. */ raw_spinlock_t lpi_list_lock; struct xarray lpi_xa; - int lpi_list_count; + atomic_t lpi_count; /* LPI translation cache */ struct list_head lpi_translation_cache; |