search for: pageballoon

...ff --git a/fs/proc/page.c b/fs/proc/page.c > index 7eee2d8..e741307 100644 > --- a/fs/proc/page.c > +++ b/fs/proc/page.c > @@ -143,8 +143,8 @@ u64 stable_page_flags(struct page *page) > if (PageBuddy(page)) > u |= 1 << KPF_BUDDY; > > - if (PageBalloon(page)) > - u |= 1 << KPF_BALLOON; > + if (PageMigratable(page)) > + u |= 1 << KPF_MIGRATABLE; > > u |= kpf_copy_bit(k, KPF_LOCKED, PG_locked); > > diff --git a/include/linux/balloon_compaction.h b/include/linux/balloo...

...ff --git a/fs/proc/page.c b/fs/proc/page.c > index 7eee2d8..e741307 100644 > --- a/fs/proc/page.c > +++ b/fs/proc/page.c > @@ -143,8 +143,8 @@ u64 stable_page_flags(struct page *page) > if (PageBuddy(page)) > u |= 1 << KPF_BUDDY; > > - if (PageBalloon(page)) > - u |= 1 << KPF_BALLOON; > + if (PageMigratable(page)) > + u |= 1 << KPF_MIGRATABLE; > > u |= kpf_copy_bit(k, KPF_LOCKED, PG_locked); > > diff --git a/include/linux/balloon_compaction.h b/include/linux/balloo...

...> +#define PAGE_BALLOON_MAPCOUNT_VALUE PAGE_MOVABLE_MAPCOUNT_VALUE > > static inline int PageMovable(struct page *page) > { > - return ((test_bit(PG_movable, &(page)->flags) && > - atomic_read(&page->_mapcount) == PAGE_MOVABLE_MAPCOUNT_VALUE) > - || PageBalloon(page)); > + return (test_bit(PG_movable, &(page)->flags) && > + atomic_read(&page->_mapcount) == PAGE_MOVABLE_MAPCOUNT_VALUE); > } > > /* Caller should hold a PG_lock */ > @@ -645,6 +626,35 @@ static inline void __ClearPageMovable(struct page *page) >...

...> +#define PAGE_BALLOON_MAPCOUNT_VALUE PAGE_MOVABLE_MAPCOUNT_VALUE > > static inline int PageMovable(struct page *page) > { > - return ((test_bit(PG_movable, &(page)->flags) && > - atomic_read(&page->_mapcount) == PAGE_MOVABLE_MAPCOUNT_VALUE) > - || PageBalloon(page)); > + return (test_bit(PG_movable, &(page)->flags) && > + atomic_read(&page->_mapcount) == PAGE_MOVABLE_MAPCOUNT_VALUE); > } > > /* Caller should hold a PG_lock */ > @@ -645,6 +626,35 @@ static inline void __ClearPageMovable(struct page *page) >...

...+ &balloon_aops); #endif err = init_vqs(vb); diff --git a/fs/proc/page.c b/fs/proc/page.c index 7eee2d8..e741307 100644 --- a/fs/proc/page.c +++ b/fs/proc/page.c @@ -143,8 +143,8 @@ u64 stable_page_flags(struct page *page) if (PageBuddy(page)) u |= 1 << KPF_BUDDY; - if (PageBalloon(page)) - u |= 1 << KPF_BALLOON; + if (PageMigratable(page)) + u |= 1 << KPF_MIGRATABLE; u |= kpf_copy_bit(k, KPF_LOCKED, PG_locked); diff --git a/include/linux/balloon_compaction.h b/include/linux/balloon_compaction.h index 9b0a15d..0989e96 100644 --- a/include/linux/balloon_com...

...c/page.c >> index 7eee2d8..e741307 100644 >> --- a/fs/proc/page.c >> +++ b/fs/proc/page.c >> @@ -143,8 +143,8 @@ u64 stable_page_flags(struct page *page) >> if (PageBuddy(page)) >> u |= 1 << KPF_BUDDY; >> >> - if (PageBalloon(page)) >> - u |= 1 << KPF_BALLOON; >> + if (PageMigratable(page)) >> + u |= 1 << KPF_MIGRATABLE; >> >> u |= kpf_copy_bit(k, KPF_LOCKED, PG_locked); >> >> diff --git a/include/linux/balloon_compac...

...d balloon_page_putback(struct page *page); -extern int balloon_page_migrate(struct page *newpage, +extern int balloon_page_migrate(struct address_space *mapping, + struct page *newpage, struct page *page, enum migrate_mode mode); /* - * __is_movable_balloon_page - helper to perform @page PageBalloon tests - */ -static inline bool __is_movable_balloon_page(struct page *page) -{ - return PageBalloon(page); -} - -/* - * balloon_page_movable - test PageBalloon to identify balloon pages - * and PagePrivate to check that the page is not - * isolated and can be moved by compaction/migration....

...amp;balloon_aops; + mapping_set_migratable(vb->vb_dev_info.inode->i_mapping); #endif err = init_vqs(vb); diff --git a/fs/proc/page.c b/fs/proc/page.c index 7eee2d8..2dc3673 100644 --- a/fs/proc/page.c +++ b/fs/proc/page.c @@ -146,6 +146,9 @@ u64 stable_page_flags(struct page *page) if (PageBalloon(page)) u |= 1 << KPF_BALLOON; + if (PageMigratable(page)) + u |= 1 << KPF_MIGRATABLE; + u |= kpf_copy_bit(k, KPF_LOCKED, PG_locked); u |= kpf_copy_bit(k, KPF_SLAB, PG_slab); diff --git a/include/linux/balloon_compaction.h b/include/linux/balloon_compaction.h index 9b0a15d.....

...d balloon_page_putback(struct page *page); -extern int balloon_page_migrate(struct page *newpage, +extern int balloon_page_migrate(struct address_space *mapping, + struct page *newpage, struct page *page, enum migrate_mode mode); /* - * __is_movable_balloon_page - helper to perform @page PageBalloon tests - */ -static inline bool __is_movable_balloon_page(struct page *page) -{ - return PageBalloon(page); -} - -/* - * balloon_page_movable - test PageBalloon to identify balloon pages - * and PagePrivate to check that the page is not - * isolated and can be moved by compaction/migration....

.../uapi/linux/kernel-page-flags.h | 1 + > 5 files changed, 105 insertions(+) > > diff --git a/fs/proc/page.c b/fs/proc/page.c > index 7eee2d8..a4f5a00 100644 > --- a/fs/proc/page.c > +++ b/fs/proc/page.c > @@ -146,6 +146,9 @@ u64 stable_page_flags(struct page *page) > if (PageBalloon(page)) > u |= 1 << KPF_BALLOON; > > + if (PageMobile(page)) > + u |= 1 << KPF_MOBILE; > + Need a new page flag for non-LRU page migration? I am worry that we don't have empty slot for page flag on 32-bit. Aha, see SetPageMobile below. You use _mapcount. It see...

.../uapi/linux/kernel-page-flags.h | 1 + > 5 files changed, 105 insertions(+) > > diff --git a/fs/proc/page.c b/fs/proc/page.c > index 7eee2d8..a4f5a00 100644 > --- a/fs/proc/page.c > +++ b/fs/proc/page.c > @@ -146,6 +146,9 @@ u64 stable_page_flags(struct page *page) > if (PageBalloon(page)) > u |= 1 << KPF_BALLOON; > > + if (PageMobile(page)) > + u |= 1 << KPF_MOBILE; > + Need a new page flag for non-LRU page migration? I am worry that we don't have empty slot for page flag on 32-bit. Aha, see SetPageMobile below. You use _mapcount. It see...

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

This patchset follows the main idea discussed at 2012 LSFMMS section: "Ballooning for transparent huge pages" -- http://lwn.net/Articles/490114/ to introduce the required changes to the virtio_balloon driver, as well as changes to the core compaction & migration bits, in order to allow memory balloon pages become movable within a guest. Rafael Aquini (4): mm: introduce compaction

This patchset follows the main idea discussed at 2012 LSFMMS section: "Ballooning for transparent huge pages" -- http://lwn.net/Articles/490114/ to introduce the required changes to the virtio_balloon driver, as well as changes to the core compaction & migration bits, in order to allow memory balloon pages become movable within a guest. Rafael Aquini (4): mm: introduce compaction

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

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

...d balloon_page_putback(struct page *page); -extern int balloon_page_migrate(struct page *newpage, +extern int balloon_page_migrate(struct address_space *mapping, + struct page *newpage, struct page *page, enum migrate_mode mode); /* - * __is_movable_balloon_page - helper to perform @page PageBalloon tests - */ -static inline bool __is_movable_balloon_page(struct page *page) -{ - return PageBalloon(page); -} - -/* - * balloon_page_movable - test PageBalloon to identify balloon pages - * and PagePrivate to check that the page is not - * isolated and can be moved by compaction/migration....