search for: alloc_anon_inode

...v, VIRTIO_BALLOON_F_THP_ORDER)) { > + balloon_mnt = kern_mount(&balloon_fs); > + if (IS_ERR(balloon_mnt)) { > + err = PTR_ERR(balloon_mnt); > + goto out_del_vqs; > + } > > - vb->vb_dev_info.migratepage = virtballoon_migratepage; > - vb->vb_dev_info.inode = alloc_anon_inode(balloon_mnt->mnt_sb); > - if (IS_ERR(vb->vb_dev_info.inode)) { > - err = PTR_ERR(vb->vb_dev_info.inode); > - goto out_kern_unmount; > + vb->vb_dev_info.migratepage = virtballoon_migratepage; > + vb->vb_dev_info.inode = alloc_anon_inode(balloon_mnt->mnt_sb); >...

...v, VIRTIO_BALLOON_F_THP_ORDER)) { > + balloon_mnt = kern_mount(&balloon_fs); > + if (IS_ERR(balloon_mnt)) { > + err = PTR_ERR(balloon_mnt); > + goto out_del_vqs; > + } > > - vb->vb_dev_info.migratepage = virtballoon_migratepage; > - vb->vb_dev_info.inode = alloc_anon_inode(balloon_mnt->mnt_sb); > - if (IS_ERR(vb->vb_dev_info.inode)) { > - err = PTR_ERR(vb->vb_dev_info.inode); > - goto out_kern_unmount; > + vb->vb_dev_info.migratepage = virtballoon_migratepage; > + vb->vb_dev_info.inode = alloc_anon_inode(balloon_mnt->mnt_sb); >...

...v, VIRTIO_BALLOON_F_THP_ORDER)) { > + balloon_mnt = kern_mount(&balloon_fs); > + if (IS_ERR(balloon_mnt)) { > + err = PTR_ERR(balloon_mnt); > + goto out_del_vqs; > + } > > - vb->vb_dev_info.migratepage = virtballoon_migratepage; > - vb->vb_dev_info.inode = alloc_anon_inode(balloon_mnt->mnt_sb); > - if (IS_ERR(vb->vb_dev_info.inode)) { > - err = PTR_ERR(vb->vb_dev_info.inode); > - goto out_kern_unmount; > + vb->vb_dev_info.migratepage = virtballoon_migratepage; > + vb->vb_dev_info.inode = alloc_anon_inode(balloon_mnt->mnt_sb); >...

....h | 1 + 2 files changed, 7 insertions(+) diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c index 80ef38c..1d51f96 100644 --- a/fs/anon_inodes.c +++ b/fs/anon_inodes.c @@ -162,6 +162,12 @@ err_put_unused_fd: } EXPORT_SYMBOL_GPL(anon_inode_getfd); +struct inode *anon_inode_new(void) +{ + return alloc_anon_inode(anon_inode_mnt->mnt_sb); +} +EXPORT_SYMBOL_GPL(anon_inode_new); + static int __init anon_inode_init(void) { anon_inode_mnt = kern_mount(&anon_inode_fs_type); diff --git a/include/linux/anon_inodes.h b/include/linux/anon_inodes.h index 8013a45..ddbd67f 100644 --- a/include/linux/anon_inod...

...nodes.c b/fs/anon_inodes.c index 80ef38c73e5a..1d51f96acdd9 100644 --- a/fs/anon_inodes.c +++ b/fs/anon_inodes.c @@ -162,6 +162,12 @@ int anon_inode_getfd(const char *name, const struct file_operations *fops, } EXPORT_SYMBOL_GPL(anon_inode_getfd); +struct inode *anon_inode_new(void) +{ + return alloc_anon_inode(anon_inode_mnt->mnt_sb); +} +EXPORT_SYMBOL_GPL(anon_inode_new); + static int __init anon_inode_init(void) { anon_inode_mnt = kern_mount(&anon_inode_fs_type); diff --git a/include/linux/anon_inodes.h b/include/linux/anon_inodes.h index 8013a45242fe..ddbd67f8a73f 100644 --- a/include/linux...

...iff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index abef2306c899..7e5d84caeb94 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -901,8 +901,7 @@ static int virtballoon_probe(struct virtio_device *vdev) vb->vb_dev_info.inode = alloc_anon_inode(balloon_mnt->mnt_sb); if (IS_ERR(vb->vb_dev_info.inode)) { err = PTR_ERR(vb->vb_dev_info.inode); - kern_unmount(balloon_mnt); - goto out_del_vqs; + goto out_kern_unmount; } vb->vb_dev_info.inode->i_mapping->a_ops = &balloon_aops; #endif @@ -913,13 +912,13 @@ stati...

...+#ifdef CONFIG_BALLOON_COMPACTION + balloon_mnt = kern_mount(&balloon_fs); + if (IS_ERR(balloon_mnt)) { + err = PTR_ERR(balloon_mnt); + unregister_oom_notifier(&vb->nb); + goto out_del_vqs; + } + + vb->vb_dev_info.migratepage = virtballoon_migratepage; + vb->vb_dev_info.inode = alloc_anon_inode(balloon_mnt->mnt_sb); + if (IS_ERR(vb->vb_dev_info.inode)) { + err = PTR_ERR(vb->vb_dev_info.inode); + kern_unmount(balloon_mnt); + unregister_oom_notifier(&vb->nb); + vb->vb_dev_info.inode = NULL; + goto out_del_vqs; + } + vb->vb_dev_info.inode->i_mapping->a_ops =...

...+#ifdef CONFIG_BALLOON_COMPACTION + balloon_mnt = kern_mount(&balloon_fs); + if (IS_ERR(balloon_mnt)) { + err = PTR_ERR(balloon_mnt); + unregister_oom_notifier(&vb->nb); + goto out_del_vqs; + } + + vb->vb_dev_info.migratepage = virtballoon_migratepage; + vb->vb_dev_info.inode = alloc_anon_inode(balloon_mnt->mnt_sb); + if (IS_ERR(vb->vb_dev_info.inode)) { + err = PTR_ERR(vb->vb_dev_info.inode); + kern_unmount(balloon_mnt); + unregister_oom_notifier(&vb->nb); + vb->vb_dev_info.inode = NULL; + goto out_del_vqs; + } + vb->vb_dev_info.inode->i_mapping->a_ops =...

...+#ifdef CONFIG_BALLOON_COMPACTION + balloon_mnt = kern_mount(&balloon_fs); + if (IS_ERR(balloon_mnt)) { + err = PTR_ERR(balloon_mnt); + unregister_oom_notifier(&vb->nb); + goto out_del_vqs; + } + vb->vb_dev_info.migratepage = virtballoon_migratepage; + vb->vb_dev_info.inode = alloc_anon_inode(balloon_mnt->mnt_sb); + if (IS_ERR(vb->vb_dev_info.inode)) { + err = PTR_ERR(vb->vb_dev_info.inode); + kern_unmount(balloon_mnt); + unregister_oom_notifier(&vb->nb); + vb->vb_dev_info.inode = NULL; + goto out_del_vqs; + } + vb->vb_dev_info.inode->i_mapping->a_ops =...

...lloon_devinfo_init(&vb->vb_dev_info); #ifdef CONFIG_BALLOON_COMPACTION + balloon_mnt = kern_mount(&balloon_fs); + if (IS_ERR(balloon_mnt)) { + err = PTR_ERR(balloon_mnt); + goto out_free_vb; + } + vb->vb_dev_info.migratepage = virtballoon_migratepage; + vb->vb_dev_info.inode = alloc_anon_inode(balloon_mnt->mnt_sb); + if (IS_ERR(vb->vb_dev_info.inode)) { + err = PTR_ERR(vb->vb_dev_info.inode); + vb->vb_dev_info.inode = NULL; + goto out_unmount; + } + vb->vb_dev_info.inode->i_mapping->a_ops = &balloon_aops; #endif err = init_vqs(vb); if (err) - goto out_...

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

Two fixes for issues I stumbled over while working on patch #3. Switch back to the good ol' OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM as the switch to the shrinker introduce some undesired side effects. Keep the shrinker in place to handle VIRTIO_BALLOON_F_FREE_PAGE_HINT. Lengthy discussion under [1]. I tested with QEMU and "deflate-on-oom=on". Works as expected. Did not test

VMware balloon enhancements: adding support for memory compaction, memory shrinker (to prevent OOM) and splitting of refused pages to prevent recurring inflations. Patches 1-2: Support for compaction Patch 3: Support for memory shrinker - disabled by default Patch 4: Split refused pages to improve performance v3->v4: * "get around to" comment [Michael] * Put list_add under page lock

VMware balloon enhancements: adding support for memory compaction, memory shrinker (to prevent OOM) and splitting of refused pages to prevent recurring inflations. Patches 1-2: Support for compaction Patch 3: Support for memory shrinker - disabled by default Patch 4: Split refused pages to improve performance v3->v4: * "get around to" comment [Michael] * Put list_add under page lock

VMware balloon enhancements: adding support for memory compaction, memory shrinker (to prevent OOM) and splitting of refused pages to prevent recurring inflations. Patches 1-2: Support for compaction Patch 3: Support for memory shrinker - disabled by default Patch 4: Split refused pages to improve performance v2->v3: * Fixing wrong argument type (int->size_t) [Michael] * Fixing a comment

Hello, This series try to enable migration of non-LRU pages, such as driver's page. My ARM-based platform occured severe fragmentation problem after long-term (several days) test. Sometimes even order-3 page allocation failed. It has memory size 512MB ~ 1024MB. 30% ~ 40% memory is consumed for graphic processing and 20~30 memory is reserved for zram. I found that many pages of GPU driver

Hello, This series try to enable migration of non-LRU pages, such as driver's page. My ARM-based platform occured severe fragmentation problem after long-term (several days) test. Sometimes even order-3 page allocation failed. It has memory size 512MB ~ 1024MB. 30% ~ 40% memory is consumed for graphic processing and 20~30 memory is reserved for zram. I found that many pages of GPU driver

Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and easy fork fail. The problem was fragmentation caused by zram and GPU driver mainly. With memory pressure, their pages were spread out all of pageblock and it cannot be migrated with current compaction algorithm which supports only LRU pages. In the end, compaction cannot

Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and easy fork fail. The problem was fragmentation caused by zram and GPU driver mainly. With memory pressure, their pages were spread out all of pageblock and it cannot be migrated with current compaction algorithm which supports only LRU pages. In the end, compaction cannot