search for: config_balloon_compact

0day reports: drivers//virtio/virtio_balloon.c: In function 'virtballoon_probe': drivers//virtio/virtio_balloon.c:960:1: error: label 'out_del_vqs' defined but not used [-Werror=unused-label] This is seen with CONFIG_BALLOON_COMPACTION=n. Reported-by: kbuild test robot <lkp at intel.com> Fixes: 1ad6f58ea936 ("virtio_balloon: Fix memory leaks on errors in virtballoon_probe()") Cc: David Hildenbrand <david at redhat.com> Cc: Michael S. Tsirkin <mst at redhat.com> Signed-off-by: Guenter Roeck <linu...

Clang warns when CONFIG_BALLOON_COMPACTION is unset: ../drivers/virtio/virtio_balloon.c:963:1: warning: unused label 'out_del_vqs' [-Wunused-label] out_del_vqs: ^~~~~~~~~~~~ 1 warning generated. Move the label within the preprocessor block since it is only used when CONFIG_BALLOON_COMPACTION is set. Fixes: 1ad6f58ea936 ("...

Clang warns when CONFIG_BALLOON_COMPACTION is unset: ../drivers/virtio/virtio_balloon.c:963:1: warning: unused label 'out_del_vqs' [-Wunused-label] out_del_vqs: ^~~~~~~~~~~~ 1 warning generated. Move the label within the preprocessor block since it is only used when CONFIG_BALLOON_COMPACTION is set. Fixes: 1ad6f58ea936 ("...

From: Borislav Petkov <bp at suse.de> Fix drivers/virtio/virtio_balloon.c: In function ?virtballoon_probe?: drivers/virtio/virtio_balloon.c:963:1: warning: label ?out_del_vqs? defined but not used [-Wunused-label] 963 | out_del_vqs: | ^~ The CONFIG_BALLOON_COMPACTION ifdeffery should enclose it too. Signed-off-by: Borislav Petkov <bp at suse.de> Cc: David Hildenbrand <david at redhat.com> --- drivers/virtio/virtio_balloon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virti...

From: Borislav Petkov <bp at suse.de> Fix drivers/virtio/virtio_balloon.c: In function ?virtballoon_probe?: drivers/virtio/virtio_balloon.c:963:1: warning: label ?out_del_vqs? defined but not used [-Wunused-label] 963 | out_del_vqs: | ^~ The CONFIG_BALLOON_COMPACTION ifdeffery should enclose it too. Signed-off-by: Borislav Petkov <bp at suse.de> Cc: David Hildenbrand <david at redhat.com> --- drivers/virtio/virtio_balloon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virti...

...ude <linux/mount.h> /* * Balloon device works in 4K page units. So each page is pointed to by @@ -45,6 +46,10 @@ static 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"); +#ifdef CONFIG_BALLOON_COMPACTION +static struct vfsmount *balloon_mnt; +#endif + struct virtio_balloon { struct virtio_device *vdev; struct virtqueue *inflate_vq, *deflate_vq, *stats_vq; @@ -482,10 +487,29 @@ static int virtballoon_migratepage(struct balloon_dev_info *vb_dev_info, mutex_unlock(&vb->balloon_lock)...

...ude <linux/mount.h> /* * Balloon device works in 4K page units. So each page is pointed to by @@ -45,6 +46,10 @@ static 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"); +#ifdef CONFIG_BALLOON_COMPACTION +static struct vfsmount *balloon_mnt; +#endif + struct virtio_balloon { struct virtio_device *vdev; struct virtqueue *inflate_vq, *deflate_vq, *stats_vq; @@ -486,6 +491,24 @@ static int virtballoon_migratepage(struct balloon_dev_info *vb_dev_info, return MIGRATEPAGE_SUCCESS; } + +stati...

...ude <linux/mount.h> /* * Balloon device works in 4K page units. So each page is pointed to by @@ -45,6 +46,10 @@ static 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"); +#ifdef CONFIG_BALLOON_COMPACTION +static struct vfsmount *balloon_mnt; +#endif + struct virtio_balloon { struct virtio_device *vdev; struct virtqueue *inflate_vq, *deflate_vq, *stats_vq; @@ -488,8 +493,26 @@ static int virtballoon_migratepage(struct balloon_dev_info *vb_dev_info, put_page(page); /* balloon reference */...

...ude <linux/mount.h> /* * Balloon device works in 4K page units. So each page is pointed to by @@ -45,6 +46,10 @@ static 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"); +#ifdef CONFIG_BALLOON_COMPACTION +static struct vfsmount *balloon_mnt; +#endif + struct virtio_balloon { struct virtio_device *vdev; struct virtqueue *inflate_vq, *deflate_vq, *stats_vq; @@ -482,10 +487,29 @@ static int virtballoon_migratepage(struct balloon_dev_info *vb_dev_info, mutex_unlock(&vb->balloon_lock)...

Hi Minchan, [auto build test ERROR on next-20160318] [cannot apply to v4.5-rc7 v4.5-rc6 v4.5-rc5 v4.5] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Minchan-Kim/Support-non-lru-page-migration/20160321-143339 config: x86_64-randconfig-x000-201612 (attached as .config) reproduce: # save

Hi Minchan, [auto build test ERROR on next-20160318] [cannot apply to v4.5-rc7 v4.5-rc6 v4.5-rc5 v4.5] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Minchan-Kim/Support-non-lru-page-migration/20160321-143339 config: x86_64-randconfig-x000-201612 (attached as .config) reproduce: # save

With CONFIG_BALLOON_COMPACTION=y, it will mount balloon_mnt for balloon page migration when probe a virtio_balloon device, however do not unmount it when remove the device, fix it. Fixes: b1123ea6d3b3 ("mm: balloon: use general non-lru movable page feature") Signed-off-by: Yisheng Xie <xieyisheng1 at huawei.com&...

With CONFIG_BALLOON_COMPACTION=y, it will mount balloon_mnt for balloon page migration when probe a virtio_balloon device, however do not unmount it when remove the device, fix it. Fixes: b1123ea6d3b3 ("mm: balloon: use general non-lru movable page feature") Signed-off-by: Yisheng Xie <xieyisheng1 at huawei.com&...

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge

This series is split from the "Virtio-balloon: support free page reporting" series to make some improvements. v1->v2 ChangeLog: - register the shrinker when VIRTIO_BALLOON_F_DEFLATE_ON_OOM is negotiated. Wei Wang (2): virtio-balloon: remove BUG() in init_vqs virtio_balloon: replace oom notifier with shrinker drivers/virtio/virtio_balloon.c | 125

This series is split from the "Virtio-balloon: support free page reporting" series to make some improvements. v1->v2 ChangeLog: - register the shrinker when VIRTIO_BALLOON_F_DEFLATE_ON_OOM is negotiated. Wei Wang (2): virtio-balloon: remove BUG() in init_vqs virtio_balloon: replace oom notifier with shrinker drivers/virtio/virtio_balloon.c | 125

This series is split from the "Virtio-balloon: support free page reporting" series to make some improvements. ChangeLog: v2->v3: - shrink the balloon pages according to the amount requested by the claimer, instead of using a user specified number; v1->v2: - register the shrinker when VIRTIO_BALLOON_F_DEFLATE_ON_OOM is negotiated. Wei Wang (2): virtio-balloon: remove BUG()

...); -MODULE_PARM_DESC(oom_pages, "pages to free on OOM"); +static unsigned long balloon_pages_to_shrink = DEFAULT_BALLOON_PAGES_TO_SHRINK; +module_param(balloon_pages_to_shrink, ulong, 0600); +MODULE_PARM_DESC(balloon_pages_to_shrink, "pages to free on memory presure"); #ifdef CONFIG_BALLOON_COMPACTION static struct vfsmount *balloon_mnt; @@ -86,8 +85,8 @@ struct virtio_balloon { /* Memory statistics */ struct virtio_balloon_stat stats[VIRTIO_BALLOON_S_NR]; - /* To register callback in oom notifier call chain */ - struct notifier_block nb; + /* To register a shrinker to shrink memory up...

...); -MODULE_PARM_DESC(oom_pages, "pages to free on OOM"); +static unsigned long balloon_pages_to_shrink = DEFAULT_BALLOON_PAGES_TO_SHRINK; +module_param(balloon_pages_to_shrink, ulong, 0600); +MODULE_PARM_DESC(balloon_pages_to_shrink, "pages to free on memory presure"); #ifdef CONFIG_BALLOON_COMPACTION static struct vfsmount *balloon_mnt; @@ -86,8 +85,8 @@ struct virtio_balloon { /* Memory statistics */ struct virtio_balloon_stat stats[VIRTIO_BALLOON_S_NR]; - /* To register callback in oom notifier call chain */ - struct notifier_block nb; + /* To register a shrinker to shrink memory up...