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| author | Oliver Upton <oliver.upton@linux.dev> | 2024-02-21 06:42:53 +0100 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2024-02-23 22:46:02 +0100 |
| commit | e27f2d561fee873d415697e6e5e3ec78efc9c259 (patch) | |
| tree | d5a5a60fa10c354122bc3469c48f9bdfec363d6a /arch/xtensa/kernel | |
| parent | KVM: arm64: vgic: Ensure the irq refcount is nonzero when taking a ref (diff) | |
| download | linux-e27f2d561fee873d415697e6e5e3ec78efc9c259.tar.xz linux-e27f2d561fee873d415697e6e5e3ec78efc9c259.zip | |
KVM: arm64: vgic: Don't acquire the lpi_list_lock in vgic_put_irq()
The LPI xarray's xa_lock is sufficient for synchronizing writers when
freeing a given LPI. Furthermore, readers can only take a new reference
on an IRQ if it was already nonzero.
Stop taking the lpi_list_lock unnecessarily and get rid of
__vgic_put_lpi_locked().
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240221054253.3848076-11-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Diffstat (limited to 'arch/xtensa/kernel')
0 files changed, 0 insertions, 0 deletions