search for: __is_movable_balloon_page

...oon_mapping_alloc(struct balloon_dev_info *b_dev_info, > + const struct address_space_operations *a_ops); > + > +static inline void balloon_mapping_free(struct address_space *balloon_mapping) > +{ > + kfree(balloon_mapping); > +} > + > /* > - * __is_movable_balloon_page - helper to perform @page PageBalloon tests > + * __is_movable_balloon_page - helper to perform @page PageMigratable tests > */ > static inline bool __is_movable_balloon_page(struct page *page) > { > - return PageBalloon(page); > + return PageMigratable(page); >...

...oon_mapping_alloc(struct balloon_dev_info *b_dev_info, > + const struct address_space_operations *a_ops); > + > +static inline void balloon_mapping_free(struct address_space *balloon_mapping) > +{ > + kfree(balloon_mapping); > +} > + > /* > - * __is_movable_balloon_page - helper to perform @page PageBalloon tests > + * __is_movable_balloon_page - helper to perform @page PageMigratable tests > */ > static inline bool __is_movable_balloon_page(struct page *page) > { > - return PageBalloon(page); > + return PageMigratable(page); >...

...page *page, + isolate_mode_t mode); extern void 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 + * __is_movable_balloon_page - helper to perform @page PageMigratable tests */ static inline bool __is_movable_balloon_page(struct page *page) { - return PageBalloon(page); + return PageMigratable(page); } /* - * balloon_page_movable - test PageB...

...simply distinguish balloon pages for stable_page_flags(). > @@ -1033,7 +1019,7 @@ static int __unmap_and_move(struct page *page, struct page *newpage, > out: > /* If migration is successful, move newpage to right list */ > if (rc == MIGRATEPAGE_SUCCESS) { > - if (unlikely(__is_movable_balloon_page(newpage))) > + if (unlikely(PageMovable(newpage))) > put_page(newpage); > else > putback_lru_page(newpage); Hmm shouldn't the condition have been changed to if (unlikely(__is_movable_balloon_page(newpage)) || PageMovable(newpage) by patch 02/16? And this patch shou...

...simply distinguish balloon pages for stable_page_flags(). > @@ -1033,7 +1019,7 @@ static int __unmap_and_move(struct page *page, struct page *newpage, > out: > /* If migration is successful, move newpage to right list */ > if (rc == MIGRATEPAGE_SUCCESS) { > - if (unlikely(__is_movable_balloon_page(newpage))) > + if (unlikely(PageMovable(newpage))) > put_page(newpage); > else > putback_lru_page(newpage); Hmm shouldn't the condition have been changed to if (unlikely(__is_movable_balloon_page(newpage)) || PageMovable(newpage) by patch 02/16? And this patch shou...

..., enum migrate_mode mode); +extern struct address_space +*balloon_mapping_alloc(struct balloon_dev_info *b_dev_info, + const struct address_space_operations *a_ops); + +static inline void balloon_mapping_free(struct address_space *balloon_mapping) +{ + kfree(balloon_mapping); +} + /* - * __is_movable_balloon_page - helper to perform @page PageBalloon tests + * __is_movable_balloon_page - helper to perform @page PageMigratable tests */ static inline bool __is_movable_balloon_page(struct page *page) { - return PageBalloon(page); + return PageMigratable(page); } /* - * balloon_page_movable - test PageB...

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

...t page *page, + isolate_mode_t mode); extern void 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...

...t page *page, + isolate_mode_t mode); extern void 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...

...info *b_dev_info, >> + const struct address_space_operations *a_ops); >> + >> +static inline void balloon_mapping_free(struct address_space *balloon_mapping) >> +{ >> + kfree(balloon_mapping); >> +} >> + >> /* >> - * __is_movable_balloon_page - helper to perform @page PageBalloon tests >> + * __is_movable_balloon_page - helper to perform @page PageMigratable tests >> */ >> static inline bool __is_movable_balloon_page(struct page *page) >> { >> - return PageBalloon(page); >> + return...

...t page *page, + isolate_mode_t mode); extern void 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...

...t page *page, + isolate_mode_t mode); extern void 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...

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

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

...644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -907,6 +907,14 @@ static int __unmap_and_move(struct page *page, struct page *newpage, put_anon_vma(anon_vma); unlock_page(page); out: + /* If migration is scucessful, move newpage to right list */ + if (rc == MIGRATEPAGE_SUCCESS) { + if (unlikely(__is_movable_balloon_page(newpage))) + put_page(newpage); + else + putback_lru_page(newpage); + } + return rc; } @@ -940,6 +948,12 @@ static ICE_noinline int unmap_and_move(new_page_t get_new_page, if (page_count(page) == 1) { /* page was freed from under us. So we are done. */ + ClearPageActive(page); +...

...644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -913,6 +913,14 @@ static int __unmap_and_move(struct page *page, struct page *newpage, put_anon_vma(anon_vma); unlock_page(page); out: + /* If migration is successful, move newpage to right list */ + if (rc == MIGRATEPAGE_SUCCESS) { + if (unlikely(__is_movable_balloon_page(newpage))) + put_page(newpage); + else + putback_lru_page(newpage); + } + return rc; } @@ -946,6 +954,12 @@ static ICE_noinline int unmap_and_move(new_page_t get_new_page, if (page_count(page) == 1) { /* page was freed from under us. So we are done. */ + ClearPageActive(page); +...

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