search for: virtio_balloon_vq

....c +++ b/drivers/virtio/virtio_balloon.c @@ -42,6 +42,10 @@ static struct vfsmount *balloon_mnt; #endif +static bool conservative_shrinker = true; +module_param(conservative_shrinker, bool, 0644); +MODULE_PARM_DESC(conservative_shrinker, "conservatively shrink balloon pages"); + enum virtio_balloon_vq { VIRTIO_BALLOON_VQ_INFLATE, VIRTIO_BALLOON_VQ_DEFLATE, @@ -796,6 +800,10 @@ static unsigned long shrink_balloon_pages(struct virtio_balloon *vb, { unsigned long pages_freed = 0; + /* Balloon pages only gets shrunk when the pagecache depleted */ + if (conservative_shrinker && globa...

....c +++ b/drivers/virtio/virtio_balloon.c @@ -42,6 +42,10 @@ static struct vfsmount *balloon_mnt; #endif +static bool conservative_shrinker = true; +module_param(conservative_shrinker, bool, 0644); +MODULE_PARM_DESC(conservative_shrinker, "conservatively shrink balloon pages"); + enum virtio_balloon_vq { VIRTIO_BALLOON_VQ_INFLATE, VIRTIO_BALLOON_VQ_DEFLATE, @@ -796,6 +800,10 @@ static unsigned long shrink_balloon_pages(struct virtio_balloon *vb, { unsigned long pages_freed = 0; + /* Balloon pages only gets shrunk when the pagecache depleted */ + if (conservative_shrinker && globa...

Since virtio-ccw doesn't work with accessing to the config space inside an interrupt context, this patch series avoids that issue by moving the config register accesses to the related workqueue contexts. v1->v2 ChangeLog: - add config_read_bitmap to indicate to the workqueue callbacks about the necessity of reading the related config fields. Wei Wang (2): virtio-balloon: tweak

...@@ -42,6 +42,10 @@ > static struct vfsmount *balloon_mnt; > #endif > > +static bool conservative_shrinker = true; > +module_param(conservative_shrinker, bool, 0644); > +MODULE_PARM_DESC(conservative_shrinker, "conservatively shrink balloon pages"); > + > enum virtio_balloon_vq { > VIRTIO_BALLOON_VQ_INFLATE, > VIRTIO_BALLOON_VQ_DEFLATE, > @@ -796,6 +800,10 @@ static unsigned long shrink_balloon_pages(struct virtio_balloon *vb, > { > unsigned long pages_freed = 0; > > + /* Balloon pages only gets shrunk when the pagecache depleted */ > + if...

...@@ -42,6 +42,10 @@ > static struct vfsmount *balloon_mnt; > #endif > > +static bool conservative_shrinker = true; > +module_param(conservative_shrinker, bool, 0644); > +MODULE_PARM_DESC(conservative_shrinker, "conservatively shrink balloon pages"); > + > enum virtio_balloon_vq { > VIRTIO_BALLOON_VQ_INFLATE, > VIRTIO_BALLOON_VQ_DEFLATE, > @@ -796,6 +800,10 @@ static unsigned long shrink_balloon_pages(struct virtio_balloon *vb, > { > unsigned long pages_freed = 0; > > + /* Balloon pages only gets shrunk when the pagecache depleted */ > + if...

...++++++++++++++++++++++++-------------- 1 file changed, 53 insertions(+), 28 deletions(-) diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 728ecd1..35ee762 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -61,6 +61,10 @@ enum virtio_balloon_vq { VIRTIO_BALLOON_VQ_MAX }; +enum virtio_balloon_config_read { + VIRTIO_BALLOON_CONFIG_READ_CMD_ID = 0, +}; + struct virtio_balloon { struct virtio_device *vdev; struct virtqueue *inflate_vq, *deflate_vq, *stats_vq, *free_page_vq; @@ -77,6 +81,8 @@ struct virtio_balloon { /* Prevent upda...

.../virtio_balloon.c > index dfe5684..aef73ee 100644 > --- a/drivers/virtio/virtio_balloon.c > +++ b/drivers/virtio/virtio_balloon.c > @@ -51,9 +51,22 @@ MODULE_PARM_DESC(oom_pages, "pages to free on OOM"); > static struct vfsmount *balloon_mnt; > #endif > > +enum virtio_balloon_vq { > + VIRTIO_BALLOON_VQ_INFLATE, > + VIRTIO_BALLOON_VQ_DEFLATE, > + VIRTIO_BALLOON_VQ_STATS, > + VIRTIO_BALLOON_VQ_FREE_PAGE, > + VIRTIO_BALLOON_VQ_MAX > +}; > + > struct virtio_balloon { > struct virtio_device *vdev; > - struct virtqueue *inflate_vq, *deflate_vq, *...

Since virtio-ccw doesn't work with accessing to the config space inside an interrupt context, this patch series avoids that issue by moving the config register accesses to the related workqueue contexts. v2->v3 ChangeLog: - rename cmd_id_received to cmd_id_received_cache, and have call sites read the latest value via virtio_balloon_cmd_id_received. (Still kept Cornelia and

...tatic int oom_pages = OOM_VBALLOON_DEFAULT_PAGES; module_param(oom_pages, int, S_IRUSR | S_IWUSR); MODULE_PARM_DESC(oom_pages, "pages to free on OOM"); @@ -51,9 +54,22 @@ MODULE_PARM_DESC(oom_pages, "pages to free on OOM"); static struct vfsmount *balloon_mnt; #endif +enum virtio_balloon_vq { + VIRTIO_BALLOON_VQ_INFLATE, + VIRTIO_BALLOON_VQ_DEFLATE, + VIRTIO_BALLOON_VQ_STATS, + VIRTIO_BALLOON_VQ_FREE_PAGE, + VIRTIO_BALLOON_VQ_MAX +}; + struct virtio_balloon { struct virtio_device *vdev; - struct virtqueue *inflate_vq, *deflate_vq, *stats_vq; + struct virtqueue *inflate_vq, *deflate...

...--- > 1 file changed, 53 insertions(+), 28 deletions(-) > > diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c > index 728ecd1..35ee762 100644 > --- a/drivers/virtio/virtio_balloon.c > +++ b/drivers/virtio/virtio_balloon.c > @@ -61,6 +61,10 @@ enum virtio_balloon_vq { > VIRTIO_BALLOON_VQ_MAX > }; > > +enum virtio_balloon_config_read { > + VIRTIO_BALLOON_CONFIG_READ_CMD_ID = 0, > +}; > + > struct virtio_balloon { > struct virtio_device *vdev; > struct virtqueue *inflate_vq, *deflate_vq, *stats_vq, *free_page_vq; > @@ -...

...--- > 1 file changed, 53 insertions(+), 28 deletions(-) > > diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c > index 728ecd1..35ee762 100644 > --- a/drivers/virtio/virtio_balloon.c > +++ b/drivers/virtio/virtio_balloon.c > @@ -61,6 +61,10 @@ enum virtio_balloon_vq { > VIRTIO_BALLOON_VQ_MAX > }; > > +enum virtio_balloon_config_read { > + VIRTIO_BALLOON_CONFIG_READ_CMD_ID = 0, > +}; > + > struct virtio_balloon { > struct virtio_device *vdev; > struct virtqueue *inflate_vq, *deflate_vq, *stats_vq, *free_page_vq; > @@ -...

...virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index a1fb52c..5476725 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -51,9 +51,22 @@ MODULE_PARM_DESC(oom_pages, "pages to free on OOM"); static struct vfsmount *balloon_mnt; #endif +enum virtio_balloon_vq { + VIRTIO_BALLOON_VQ_INFLATE, + VIRTIO_BALLOON_VQ_DEFLATE, + VIRTIO_BALLOON_VQ_STATS, + VIRTIO_BALLOON_VQ_FREE_PAGE, + VIRTIO_BALLOON_VQ_MAX +}; + struct virtio_balloon { struct virtio_device *vdev; - struct virtqueue *inflate_vq, *deflate_vq, *stats_vq; + struct virtqueue *inflate_vq, *deflate...

...virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index a1fb52c..5476725 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -51,9 +51,22 @@ MODULE_PARM_DESC(oom_pages, "pages to free on OOM"); static struct vfsmount *balloon_mnt; #endif +enum virtio_balloon_vq { + VIRTIO_BALLOON_VQ_INFLATE, + VIRTIO_BALLOON_VQ_DEFLATE, + VIRTIO_BALLOON_VQ_STATS, + VIRTIO_BALLOON_VQ_FREE_PAGE, + VIRTIO_BALLOON_VQ_MAX +}; + struct virtio_balloon { struct virtio_device *vdev; - struct virtqueue *inflate_vq, *deflate_vq, *stats_vq; + struct virtqueue *inflate_vq, *deflate...

...virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index a1fb52c..114985b 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -51,9 +51,22 @@ MODULE_PARM_DESC(oom_pages, "pages to free on OOM"); static struct vfsmount *balloon_mnt; #endif +enum virtio_balloon_vq { + VIRTIO_BALLOON_VQ_INFLATE, + VIRTIO_BALLOON_VQ_DEFLATE, + VIRTIO_BALLOON_VQ_STATS, + VIRTIO_BALLOON_VQ_FREE_PAGE, + VIRTIO_BALLOON_VQ_MAX +}; + struct virtio_balloon { struct virtio_device *vdev; - struct virtqueue *inflate_vq, *deflate_vq, *stats_vq; + struct virtqueue *inflate_vq, *deflate...

...nged, 225 insertions(+), 36 deletions(-) diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index dfe5684..18d24a4 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -51,9 +51,22 @@ static struct vfsmount *balloon_mnt; #endif +enum virtio_balloon_vq { + VIRTIO_BALLOON_VQ_INFLATE, + VIRTIO_BALLOON_VQ_DEFLATE, + VIRTIO_BALLOON_VQ_STATS, + VIRTIO_BALLOON_VQ_FREE_PAGE, + VIRTIO_BALLOON_VQ_MAX +}; + struct virtio_balloon { struct virtio_device *vdev; - struct virtqueue *inflate_vq, *deflate_vq, *stats_vq; + struct virtqueue *inflate_vq, *deflate...

...virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index dfe5684..aef73ee 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -51,9 +51,22 @@ MODULE_PARM_DESC(oom_pages, "pages to free on OOM"); static struct vfsmount *balloon_mnt; #endif +enum virtio_balloon_vq { + VIRTIO_BALLOON_VQ_INFLATE, + VIRTIO_BALLOON_VQ_DEFLATE, + VIRTIO_BALLOON_VQ_STATS, + VIRTIO_BALLOON_VQ_FREE_PAGE, + VIRTIO_BALLOON_VQ_MAX +}; + struct virtio_balloon { struct virtio_device *vdev; - struct virtqueue *inflate_vq, *deflate_vq, *stats_vq; + struct virtqueue *inflate_vq, *deflate...

.../virtio_balloon.c > index a1fb52c..5476725 100644 > --- a/drivers/virtio/virtio_balloon.c > +++ b/drivers/virtio/virtio_balloon.c > @@ -51,9 +51,22 @@ MODULE_PARM_DESC(oom_pages, "pages to free on OOM"); > static struct vfsmount *balloon_mnt; > #endif > > +enum virtio_balloon_vq { > + VIRTIO_BALLOON_VQ_INFLATE, > + VIRTIO_BALLOON_VQ_DEFLATE, > + VIRTIO_BALLOON_VQ_STATS, > + VIRTIO_BALLOON_VQ_FREE_PAGE, > + VIRTIO_BALLOON_VQ_MAX > +}; > + > struct virtio_balloon { > struct virtio_device *vdev; > - struct virtqueue *inflate_vq, *deflate_vq, *...

...tatic int oom_pages = OOM_VBALLOON_DEFAULT_PAGES; module_param(oom_pages, int, S_IRUSR | S_IWUSR); MODULE_PARM_DESC(oom_pages, "pages to free on OOM"); @@ -51,9 +56,22 @@ MODULE_PARM_DESC(oom_pages, "pages to free on OOM"); static struct vfsmount *balloon_mnt; #endif +enum virtio_balloon_vq { + VIRTIO_BALLOON_VQ_INFLATE, + VIRTIO_BALLOON_VQ_DEFLATE, + VIRTIO_BALLOON_VQ_STATS, + VIRTIO_BALLOON_VQ_FREE_PAGE, + VIRTIO_BALLOON_VQ_MAX +}; + struct virtio_balloon { struct virtio_device *vdev; - struct virtqueue *inflate_vq, *deflate_vq, *stats_vq; + struct virtqueue *inflate_vq, *deflate...

...ost has already moved formard. v24->v25: - mm: change walk_free_mem_block to return 0 (instead of true) on completing the report, and return a non-zero value from the callabck, which stops the reporting. - virtio-balloon: - use enum instead of define for VIRTIO_BALLOON_VQ_INFLATE etc. - avoid __virtio_clear_bit when bailing out; - a new method to avoid reporting the some cmd id to host twice - destroy_workqueue can cancel free page work when the feature is negotiated; - fail probe when the free page vq size is less than 2. v...

.../virtio_balloon.c > index a1fb52c..114985b 100644 > --- a/drivers/virtio/virtio_balloon.c > +++ b/drivers/virtio/virtio_balloon.c > @@ -51,9 +51,22 @@ MODULE_PARM_DESC(oom_pages, "pages to free on OOM"); > static struct vfsmount *balloon_mnt; > #endif > > +enum virtio_balloon_vq { > + VIRTIO_BALLOON_VQ_INFLATE, > + VIRTIO_BALLOON_VQ_DEFLATE, > + VIRTIO_BALLOON_VQ_STATS, > + VIRTIO_BALLOON_VQ_FREE_PAGE, > + VIRTIO_BALLOON_VQ_MAX > +}; > + > struct virtio_balloon { > struct virtio_device *vdev; > - struct virtqueue *inflate_vq, *deflate_vq, *...