search for: cmdq_stats_hdr

.../* Prevent updating balloon when it is being canceled. */ spinlock_t stop_update_lock; @@ -90,6 +91,12 @@ struct virtio_balloon { /* Memory statistics */ struct virtio_balloon_stat stats[VIRTIO_BALLOON_S_NR]; + /* Cmdq msg buffer for memory statistics */ + struct virtio_balloon_cmdq_hdr cmdq_stats_hdr; + + /* Cmdq msg buffer for reporting ununsed pages */ + struct virtio_balloon_cmdq_hdr cmdq_unused_page_hdr; + /* To register callback in oom notifier call chain */ struct notifier_block nb; }; @@ -485,25 +492,214 @@ static void update_balloon_size_func(struct work_struct *work) queue_work...

...n it is being canceled. */ > spinlock_t stop_update_lock; > @@ -90,6 +91,12 @@ struct virtio_balloon { > /* Memory statistics */ > struct virtio_balloon_stat stats[VIRTIO_BALLOON_S_NR]; > > + /* Cmdq msg buffer for memory statistics */ > + struct virtio_balloon_cmdq_hdr cmdq_stats_hdr; > + > + /* Cmdq msg buffer for reporting ununsed pages */ > + struct virtio_balloon_cmdq_hdr cmdq_unused_page_hdr; > + > /* To register callback in oom notifier call chain */ > struct notifier_block nb; > }; > @@ -485,25 +492,214 @@ static void update_balloon_size_func...

...n it is being canceled. */ > spinlock_t stop_update_lock; > @@ -90,6 +91,12 @@ struct virtio_balloon { > /* Memory statistics */ > struct virtio_balloon_stat stats[VIRTIO_BALLOON_S_NR]; > > + /* Cmdq msg buffer for memory statistics */ > + struct virtio_balloon_cmdq_hdr cmdq_stats_hdr; > + > + /* Cmdq msg buffer for reporting ununsed pages */ > + struct virtio_balloon_cmdq_hdr cmdq_unused_page_hdr; > + > /* To register callback in oom notifier call chain */ > struct notifier_block nb; > }; > @@ -485,25 +492,214 @@ static void update_balloon_size_func...

This patch series enhances the existing virtio-balloon with the following new features: 1) fast ballooning: transfer ballooned pages between the guest and host in chunks using sgs, instead of one by one; and 2) cmdq: a new virtqueue to send commands between the device and driver. Currently, it supports commands to report memory stats (replace the old statq mechanism) and report guest unused pages.

This patch series enhances the existing virtio-balloon with the following new features: 1) fast ballooning: transfer ballooned pages between the guest and host in chunks using sgs, instead of one by one; and 2) cmdq: a new virtqueue to send commands between the device and driver. Currently, it supports commands to report memory stats (replace the old statq mechanism) and report guest unused pages.

...gt; spinlock_t stop_update_lock; >> @@ -90,6 +91,12 @@ struct virtio_balloon { >> /* Memory statistics */ >> struct virtio_balloon_stat stats[VIRTIO_BALLOON_S_NR]; >> >> + /* Cmdq msg buffer for memory statistics */ >> + struct virtio_balloon_cmdq_hdr cmdq_stats_hdr; >> + >> + /* Cmdq msg buffer for reporting ununsed pages */ >> + struct virtio_balloon_cmdq_hdr cmdq_unused_page_hdr; >> + >> /* To register callback in oom notifier call chain */ >> struct notifier_block nb; >> }; >> @@ -485,25 +492,214 @@ s...