From: Joerg Roedel <[email protected]> Now that I learned about possible spurious wakeups this place needs fixing too. Replace the self-coded sleep variant with the generic wait_event() helper.
Signed-off-by: Joerg Roedel <[email protected]> --- drivers/iommu/amd_iommu_v2.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c index b6398d7..5cc1409 100644 --- a/drivers/iommu/amd_iommu_v2.c +++ b/drivers/iommu/amd_iommu_v2.c @@ -266,14 +266,7 @@ static void put_pasid_state(struct pasid_state *pasid_state) static void put_pasid_state_wait(struct pasid_state *pasid_state) { - DEFINE_WAIT(wait); - - prepare_to_wait(&pasid_state->wq, &wait, TASK_UNINTERRUPTIBLE); - - if (!atomic_dec_and_test(&pasid_state->count)) - schedule(); - - finish_wait(&pasid_state->wq, &wait); + wait_event(pasid_state->wq, !atomic_read(&pasid_state->count)); free_pasid_state(pasid_state); } -- 1.8.4.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
