Displaying 20 results from an estimated 338 matches for "virtio_balloon_f_deflate_on_oom".
2020 Mar 10
2
[PATCH v2] virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM
...+ * We're allowed to reuse any free pages, even if they are
>> + * still to be processed by the host.
>> + */
>> + err = virtio_balloon_register_shrinker(vb);
>> + if (err)
>> + goto out_del_balloon_wq;
>> }
>> + if (virtio_has_feature(vdev, VIRTIO_BALLOON_F_DEFLATE_ON_OOM)) {
>> + vb->oom_nb.notifier_call = virtio_balloon_oom_notify;
>> + vb->oom_nb.priority = VIRTIO_BALLOON_OOM_NOTIFY_PRIORITY;
>> + err = register_oom_notifier(&vb->oom_nb);
>> + if (err < 0)
>> + goto out_unregister_shrinker;
>> + }
>>...
2020 Mar 10
2
[PATCH v2] virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM
...+ * We're allowed to reuse any free pages, even if they are
>> + * still to be processed by the host.
>> + */
>> + err = virtio_balloon_register_shrinker(vb);
>> + if (err)
>> + goto out_del_balloon_wq;
>> }
>> + if (virtio_has_feature(vdev, VIRTIO_BALLOON_F_DEFLATE_ON_OOM)) {
>> + vb->oom_nb.notifier_call = virtio_balloon_oom_notify;
>> + vb->oom_nb.priority = VIRTIO_BALLOON_OOM_NOTIFY_PRIORITY;
>> + err = register_oom_notifier(&vb->oom_nb);
>> + if (err < 0)
>> + goto out_unregister_shrinker;
>> + }
>>...
2017 Oct 19
1
[PATCH] virtio: avoid possible OOM lockup at virtballoon_oom_notify()
Michael S. Tsirkin wrote:
> On Wed, Oct 18, 2017 at 07:59:23PM +0900, Tetsuo Handa wrote:
> > Do you see anything wrong with the patch I used for emulating
> > VIRTIO_BALLOON_F_DEFLATE_ON_OOM path (shown below) ?
> >
> > ----------------------------------------
> > diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
> > index f0b3a0b..a679ac2 100644
> > --- a/drivers/virtio/virtio_balloon.c
> > +++ b/drivers/virtio/virtio_b...
2017 Oct 19
1
[PATCH] virtio: avoid possible OOM lockup at virtballoon_oom_notify()
Michael S. Tsirkin wrote:
> On Wed, Oct 18, 2017 at 07:59:23PM +0900, Tetsuo Handa wrote:
> > Do you see anything wrong with the patch I used for emulating
> > VIRTIO_BALLOON_F_DEFLATE_ON_OOM path (shown below) ?
> >
> > ----------------------------------------
> > diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
> > index f0b3a0b..a679ac2 100644
> > --- a/drivers/virtio/virtio_balloon.c
> > +++ b/drivers/virtio/virtio_b...
2020 Mar 10
0
[PATCH v2] virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM
...y free pages, even if they are
> >> + * still to be processed by the host.
> >> + */
> >> + err = virtio_balloon_register_shrinker(vb);
> >> + if (err)
> >> + goto out_del_balloon_wq;
> >> }
> >> + if (virtio_has_feature(vdev, VIRTIO_BALLOON_F_DEFLATE_ON_OOM)) {
> >> + vb->oom_nb.notifier_call = virtio_balloon_oom_notify;
> >> + vb->oom_nb.priority = VIRTIO_BALLOON_OOM_NOTIFY_PRIORITY;
> >> + err = register_oom_notifier(&vb->oom_nb);
> >> + if (err < 0)
> >> + goto out_unregister_shrink...
2020 Jun 08
0
[PATCH AUTOSEL 5.6 165/606] virtio-balloon: Revert "virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM"
...oon {
/* Memory statistics */
struct virtio_balloon_stat stats[VIRTIO_BALLOON_S_NR];
- /* Shrinker to return free pages - VIRTIO_BALLOON_F_FREE_PAGE_HINT */
+ /* To register a shrinker to shrink memory upon memory pressure */
struct shrinker shrinker;
-
- /* OOM notifier to deflate on OOM - VIRTIO_BALLOON_F_DEFLATE_ON_OOM */
- struct notifier_block oom_nb;
};
static struct virtio_device_id id_table[] = {
@@ -794,13 +788,50 @@ static unsigned long shrink_free_pages(struct virtio_balloon *vb,
return blocks_freed * VIRTIO_BALLOON_HINT_BLOCK_PAGES;
}
+static unsigned long leak_balloon_pages(struct virtio_balloo...
2020 Jun 08
0
[PATCH AUTOSEL 5.6 240/606] Revert "virtio-balloon: Revert "virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM""
...oon {
/* Memory statistics */
struct virtio_balloon_stat stats[VIRTIO_BALLOON_S_NR];
- /* To register a shrinker to shrink memory upon memory pressure */
+ /* Shrinker to return free pages - VIRTIO_BALLOON_F_FREE_PAGE_HINT */
struct shrinker shrinker;
+
+ /* OOM notifier to deflate on OOM - VIRTIO_BALLOON_F_DEFLATE_ON_OOM */
+ struct notifier_block oom_nb;
};
static struct virtio_device_id id_table[] = {
@@ -788,50 +794,13 @@ static unsigned long shrink_free_pages(struct virtio_balloon *vb,
return blocks_freed * VIRTIO_BALLOON_HINT_BLOCK_PAGES;
}
-static unsigned long leak_balloon_pages(struct virtio_balloo...
2020 Mar 10
2
[PATCH v2] virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM
...oon {
/* Memory statistics */
struct virtio_balloon_stat stats[VIRTIO_BALLOON_S_NR];
- /* To register a shrinker to shrink memory upon memory pressure */
+ /* Shrinker to return free pages - VIRTIO_BALLOON_F_FREE_PAGE_HINT */
struct shrinker shrinker;
+ /* OOM notifier to deflate on OOM - VIRTIO_BALLOON_F_DEFLATE_ON_OOM */
+ struct notifier_block oom_nb;
+
/* Free page reporting device */
struct virtqueue *reporting_vq;
struct page_reporting_dev_info pr_dev_info;
@@ -830,50 +836,13 @@ static unsigned long shrink_free_pages(struct virtio_balloon *vb,
return blocks_freed * VIRTIO_BALLOON_HINT_BLOCK_PAGES;
}...
2020 Mar 10
2
[PATCH v2] virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM
...oon {
/* Memory statistics */
struct virtio_balloon_stat stats[VIRTIO_BALLOON_S_NR];
- /* To register a shrinker to shrink memory upon memory pressure */
+ /* Shrinker to return free pages - VIRTIO_BALLOON_F_FREE_PAGE_HINT */
struct shrinker shrinker;
+ /* OOM notifier to deflate on OOM - VIRTIO_BALLOON_F_DEFLATE_ON_OOM */
+ struct notifier_block oom_nb;
+
/* Free page reporting device */
struct virtqueue *reporting_vq;
struct page_reporting_dev_info pr_dev_info;
@@ -830,50 +836,13 @@ static unsigned long shrink_free_pages(struct virtio_balloon *vb,
return blocks_freed * VIRTIO_BALLOON_HINT_BLOCK_PAGES;
}...
2020 Feb 05
0
[PATCH v1 3/3] virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM
...oon {
/* Memory statistics */
struct virtio_balloon_stat stats[VIRTIO_BALLOON_S_NR];
- /* To register a shrinker to shrink memory upon memory pressure */
+ /* Shrinker to return free pages - VIRTIO_BALLOON_F_FREE_PAGE_HINT */
struct shrinker shrinker;
+
+ /* OOM notifier to deflate on OOM - VIRTIO_BALLOON_F_DEFLATE_ON_OOM */
+ struct notifier_block oom_nb;
};
static struct virtio_device_id id_table[] = {
@@ -786,50 +792,13 @@ static unsigned long shrink_free_pages(struct virtio_balloon *vb,
return blocks_freed * VIRTIO_BALLOON_HINT_BLOCK_PAGES;
}
-static unsigned long leak_balloon_pages(struct virtio_balloo...
2020 Mar 10
0
[PATCH v2] virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM
...; struct virtio_balloon_stat stats[VIRTIO_BALLOON_S_NR];
>
> - /* To register a shrinker to shrink memory upon memory pressure */
> + /* Shrinker to return free pages - VIRTIO_BALLOON_F_FREE_PAGE_HINT */
> struct shrinker shrinker;
>
> + /* OOM notifier to deflate on OOM - VIRTIO_BALLOON_F_DEFLATE_ON_OOM */
> + struct notifier_block oom_nb;
> +
> /* Free page reporting device */
> struct virtqueue *reporting_vq;
> struct page_reporting_dev_info pr_dev_info;
> @@ -830,50 +836,13 @@ static unsigned long shrink_free_pages(struct virtio_balloon *vb,
> return blocks_freed *...
2020 Mar 11
0
[PATCH v4] virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM
...oon {
/* Memory statistics */
struct virtio_balloon_stat stats[VIRTIO_BALLOON_S_NR];
- /* To register a shrinker to shrink memory upon memory pressure */
+ /* Shrinker to return free pages - VIRTIO_BALLOON_F_FREE_PAGE_HINT */
struct shrinker shrinker;
+ /* OOM notifier to deflate on OOM - VIRTIO_BALLOON_F_DEFLATE_ON_OOM */
+ struct notifier_block oom_nb;
+
/* Free page reporting device */
struct virtqueue *reporting_vq;
struct page_reporting_dev_info pr_dev_info;
@@ -830,50 +836,13 @@ static unsigned long shrink_free_pages(struct virtio_balloon *vb,
return blocks_freed * VIRTIO_BALLOON_HINT_BLOCK_PAGES;
}...
2017 Oct 18
2
[PATCH] virtio: avoid possible OOM lockup at virtballoon_oom_notify()
...mory() was not able to take such pages into
account. As a result, operations which need to use fork() were failing without
calling out_of_memory().
( http://lkml.kernel.org/r/201710181954.FHH51594.MtFOFLOQFSOHVJ at I-love.SAKURA.ne.jp )
Do you see anything wrong with the patch I used for emulating
VIRTIO_BALLOON_F_DEFLATE_ON_OOM path (shown below) ?
----------------------------------------
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index f0b3a0b..a679ac2 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -164,7 +164,7 @@ static unsigned fill_balloon(st...
2017 Oct 18
2
[PATCH] virtio: avoid possible OOM lockup at virtballoon_oom_notify()
...mory() was not able to take such pages into
account. As a result, operations which need to use fork() were failing without
calling out_of_memory().
( http://lkml.kernel.org/r/201710181954.FHH51594.MtFOFLOQFSOHVJ at I-love.SAKURA.ne.jp )
Do you see anything wrong with the patch I used for emulating
VIRTIO_BALLOON_F_DEFLATE_ON_OOM path (shown below) ?
----------------------------------------
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index f0b3a0b..a679ac2 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -164,7 +164,7 @@ static unsigned fill_balloon(st...
2020 Apr 15
0
[PATCH AUTOSEL 5.6 111/129] virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM
...oon {
/* Memory statistics */
struct virtio_balloon_stat stats[VIRTIO_BALLOON_S_NR];
- /* To register a shrinker to shrink memory upon memory pressure */
+ /* Shrinker to return free pages - VIRTIO_BALLOON_F_FREE_PAGE_HINT */
struct shrinker shrinker;
+
+ /* OOM notifier to deflate on OOM - VIRTIO_BALLOON_F_DEFLATE_ON_OOM */
+ struct notifier_block oom_nb;
};
static struct virtio_device_id id_table[] = {
@@ -788,50 +794,13 @@ static unsigned long shrink_free_pages(struct virtio_balloon *vb,
return blocks_freed * VIRTIO_BALLOON_HINT_BLOCK_PAGES;
}
-static unsigned long leak_balloon_pages(struct virtio_balloo...
2020 Apr 15
0
[PATCH AUTOSEL 5.5 091/106] virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM
...oon {
/* Memory statistics */
struct virtio_balloon_stat stats[VIRTIO_BALLOON_S_NR];
- /* To register a shrinker to shrink memory upon memory pressure */
+ /* Shrinker to return free pages - VIRTIO_BALLOON_F_FREE_PAGE_HINT */
struct shrinker shrinker;
+
+ /* OOM notifier to deflate on OOM - VIRTIO_BALLOON_F_DEFLATE_ON_OOM */
+ struct notifier_block oom_nb;
};
static struct virtio_device_id id_table[] = {
@@ -788,50 +794,13 @@ static unsigned long shrink_free_pages(struct virtio_balloon *vb,
return blocks_freed * VIRTIO_BALLOON_HINT_BLOCK_PAGES;
}
-static unsigned long leak_balloon_pages(struct virtio_balloo...
2020 Feb 06
1
[PATCH v1 3/3] virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM
...; struct virtio_balloon_stat stats[VIRTIO_BALLOON_S_NR];
>
> - /* To register a shrinker to shrink memory upon memory pressure */
> + /* Shrinker to return free pages - VIRTIO_BALLOON_F_FREE_PAGE_HINT */
> struct shrinker shrinker;
> +
> + /* OOM notifier to deflate on OOM - VIRTIO_BALLOON_F_DEFLATE_ON_OOM */
> + struct notifier_block oom_nb;
> };
>
> static struct virtio_device_id id_table[] = {
> @@ -786,50 +792,13 @@ static unsigned long shrink_free_pages(struct virtio_balloon *vb,
> return blocks_freed * VIRTIO_BALLOON_HINT_BLOCK_PAGES;
> }
>
> -static unsigned...
2020 Feb 05
0
[PATCH v1 3/3] virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM
...LOON_S_NR];
>>
>> - /* To register a shrinker to shrink memory upon memory pressure */
>> + /* Shrinker to return free pages - VIRTIO_BALLOON_F_FREE_PAGE_HINT */
>> struct shrinker shrinker;
>> +
>> + /* OOM notifier to deflate on OOM - VIRTIO_BALLOON_F_DEFLATE_ON_OOM */
>> + struct notifier_block oom_nb;
>> };
>>
>> static struct virtio_device_id id_table[] = {
>> @@ -786,50 +792,13 @@ static unsigned long shrink_free_pages(struct virtio_balloon *vb,
>> return blocks_freed * VIRTIO_BALLOON_HINT_BLOCK_PAGES;
&...
2020 Feb 05
2
[PATCH v1 3/3] virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM
...tats[VIRTIO_BALLOON_S_NR];
>
> - /* To register a shrinker to shrink memory upon memory pressure */
> + /* Shrinker to return free pages - VIRTIO_BALLOON_F_FREE_PAGE_HINT
> */
> struct shrinker shrinker;
> +
> + /* OOM notifier to deflate on OOM -
> VIRTIO_BALLOON_F_DEFLATE_ON_OOM */
> + struct notifier_block oom_nb;
> };
>
> static struct virtio_device_id id_table[] = {
> @@ -786,50 +792,13 @@ static unsigned long shrink_free_pages(struct
> virtio_balloon *vb,
> return blocks_freed * VIRTIO_BALLOON_HINT_BLOCK_PAGES;
> }
>
> -st...
2020 Feb 05
2
[PATCH v1 3/3] virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM
...tats[VIRTIO_BALLOON_S_NR];
>
> - /* To register a shrinker to shrink memory upon memory pressure */
> + /* Shrinker to return free pages - VIRTIO_BALLOON_F_FREE_PAGE_HINT
> */
> struct shrinker shrinker;
> +
> + /* OOM notifier to deflate on OOM -
> VIRTIO_BALLOON_F_DEFLATE_ON_OOM */
> + struct notifier_block oom_nb;
> };
>
> static struct virtio_device_id id_table[] = {
> @@ -786,50 +792,13 @@ static unsigned long shrink_free_pages(struct
> virtio_balloon *vb,
> return blocks_freed * VIRTIO_BALLOON_HINT_BLOCK_PAGES;
> }
>
> -st...