diff options
Diffstat (limited to 'drivers/virtio/virtio_mem.c')
| -rw-r--r-- | drivers/virtio/virtio_mem.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/virtio/virtio_mem.c b/drivers/virtio/virtio_mem.c index a2edb87e5ed8..eb4c16d634e0 100644 --- a/drivers/virtio/virtio_mem.c +++ b/drivers/virtio/virtio_mem.c @@ -141,7 +141,9 @@ struct virtio_mem { /* Timer for retrying to plug/unplug memory. */ struct hrtimer retry_timer; -#define VIRTIO_MEM_RETRY_TIMER_MS 30000 + unsigned int retry_timer_ms; +#define VIRTIO_MEM_RETRY_TIMER_MIN_MS 50000 +#define VIRTIO_MEM_RETRY_TIMER_MAX_MS 300000 /* Memory notifier (online/offline events). */ struct notifier_block memory_notifier; @@ -1550,6 +1552,7 @@ retry: switch (rc) { case 0: + vm->retry_timer_ms = VIRTIO_MEM_RETRY_TIMER_MIN_MS; break; case -ENOSPC: /* @@ -1565,8 +1568,7 @@ retry: */ case -ENOMEM: /* Out of memory, try again later. */ - hrtimer_start(&vm->retry_timer, - ms_to_ktime(VIRTIO_MEM_RETRY_TIMER_MS), + hrtimer_start(&vm->retry_timer, ms_to_ktime(vm->retry_timer_ms), HRTIMER_MODE_REL); break; case -EAGAIN: @@ -1586,6 +1588,8 @@ static enum hrtimer_restart virtio_mem_timer_expired(struct hrtimer *timer) retry_timer); virtio_mem_retry(vm); + vm->retry_timer_ms = min_t(unsigned int, vm->retry_timer_ms * 2, + VIRTIO_MEM_RETRY_TIMER_MAX_MS); return HRTIMER_NORESTART; } @@ -1754,6 +1758,7 @@ static int virtio_mem_probe(struct virtio_device *vdev) spin_lock_init(&vm->removal_lock); hrtimer_init(&vm->retry_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); vm->retry_timer.function = virtio_mem_timer_expired; + vm->retry_timer_ms = VIRTIO_MEM_RETRY_TIMER_MIN_MS; /* register the virtqueue */ rc = virtio_mem_init_vq(vm); |