xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

KVM: arm/arm64: vgic: Make vgic_dist->lpi_list_lock a raw_spinlock

Browse Source 
vgic_dist->lpi_list_lock must always be taken with interrupts disabled as
it is used in interrupt context.

For configurations such as PREEMPT_RT_FULL, this means that it should
be a raw_spinlock since RT spinlocks are interruptible.

Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Acked-by: Christoffer Dall <christoffer.dall@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>
This commit is contained in:
Julien Thierry
2019-01-07 15:06:16 +00:00
committed by Christoffer Dall
parent 8fa3adb8c6
commit fc3bc47523
4 changed files with 11 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/kvm/arm_vgic.h
View File

@@ -256,7 +256,7 @@ struct vgic_dist {
u64 propbaser;
/* Protects the lpi_list and the count value below. */
spinlock_t lpi_list_lock;
raw_spinlock_t lpi_list_lock;
struct list_head lpi_list_head;
int lpi_list_count;