search for: page_balloon_mapcount_valu

...Kim <gurugio at hanmail.net> > Signed-off-by: Minchan Kim <minchan at kernel.org> I'm not familiar with the inode and pseudofs stuff, so just some things I noticed: > -#define PAGE_MOVABLE_MAPCOUNT_VALUE (-255) > +#define PAGE_MOVABLE_MAPCOUNT_VALUE (-256) > +#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_b...

...Kim <gurugio at hanmail.net> > Signed-off-by: Minchan Kim <minchan at kernel.org> I'm not familiar with the inode and pseudofs stuff, so just some things I noticed: > -#define PAGE_MOVABLE_MAPCOUNT_VALUE (-255) > +#define PAGE_MOVABLE_MAPCOUNT_VALUE (-256) > +#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_b...

...ude/linux/page-flags.h b/include/linux/page-flags.h index 77ebf8fdbc6e..603c47752126 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -599,32 +599,13 @@ static inline void __ClearPageBuddy(struct page *page) extern bool is_free_buddy_page(struct page *page); -#define PAGE_BALLOON_MAPCOUNT_VALUE (-256) - -static inline int PageBalloon(struct page *page) -{ - return atomic_read(&page->_mapcount) == PAGE_BALLOON_MAPCOUNT_VALUE; -} - -static inline void __SetPageBalloon(struct page *page) -{ - VM_BUG_ON_PAGE(atomic_read(&page->_mapcount) != -1, page); - atomic_set(&page-&gt...

...ude/linux/page-flags.h b/include/linux/page-flags.h index 3885064641c4..4853e0487175 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -599,50 +599,58 @@ static inline void __ClearPageBuddy(struct page *page) extern bool is_free_buddy_page(struct page *page); -#define PAGE_BALLOON_MAPCOUNT_VALUE (-256) +#define PAGE_MOVABLE_MAPCOUNT_VALUE (-256) +#define PAGE_BALLOON_MAPCOUNT_VALUE PAGE_MOVABLE_MAPCOUNT_VALUE -static inline int PageBalloon(struct page *page) +static inline int PageMovable(struct page *page) { - return atomic_read(&page->_mapcount) == PAGE_BALLOON_MAPCOUNT_VALUE;...

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

...a/include/linux/mm.h b/include/linux/mm.h > index 422c484..2d991a0 100644 > --- a/include/linux/mm.h > +++ b/include/linux/mm.h > @@ -599,25 +599,6 @@ static inline void __ClearPageBuddy(struct page *page) > atomic_set(&page->_mapcount, -1); > } > > -#define PAGE_BALLOON_MAPCOUNT_VALUE (-256) > - > -static inline int PageBalloon(struct page *page) > -{ > - return atomic_read(&page->_mapcount) == PAGE_BALLOON_MAPCOUNT_VALUE; > -} > - > -static inline void __SetPageBalloon(struct page *page) > -{ > - VM_BUG_ON_PAGE(atomic_read(&pag...

...a/include/linux/mm.h b/include/linux/mm.h > index 422c484..2d991a0 100644 > --- a/include/linux/mm.h > +++ b/include/linux/mm.h > @@ -599,25 +599,6 @@ static inline void __ClearPageBuddy(struct page *page) > atomic_set(&page->_mapcount, -1); > } > > -#define PAGE_BALLOON_MAPCOUNT_VALUE (-256) > - > -static inline int PageBalloon(struct page *page) > -{ > - return atomic_read(&page->_mapcount) == PAGE_BALLOON_MAPCOUNT_VALUE; > -} > - > -static inline void __SetPageBalloon(struct page *page) > -{ > - VM_BUG_ON_PAGE(atomic_read(&pag...

...ode_t mode) { return false; } diff --git a/include/linux/mm.h b/include/linux/mm.h index 422c484..2d991a0 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -599,25 +599,6 @@ static inline void __ClearPageBuddy(struct page *page) atomic_set(&page->_mapcount, -1); } -#define PAGE_BALLOON_MAPCOUNT_VALUE (-256) - -static inline int PageBalloon(struct page *page) -{ - return atomic_read(&page->_mapcount) == PAGE_BALLOON_MAPCOUNT_VALUE; -} - -static inline void __SetPageBalloon(struct page *page) -{ - VM_BUG_ON_PAGE(atomic_read(&page->_mapcount) != -1, page); - atomic_set(&page-&gt...

...nux/mm.h >> index 422c484..2d991a0 100644 >> --- a/include/linux/mm.h >> +++ b/include/linux/mm.h >> @@ -599,25 +599,6 @@ static inline void __ClearPageBuddy(struct page *page) >> atomic_set(&page->_mapcount, -1); >> } >> >> -#define PAGE_BALLOON_MAPCOUNT_VALUE (-256) >> - >> -static inline int PageBalloon(struct page *page) >> -{ >> - return atomic_read(&page->_mapcount) == PAGE_BALLOON_MAPCOUNT_VALUE; >> -} >> - >> -static inline void __SetPageBalloon(struct page *page) >> -{ >> -...

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 failed to fork easily. The problem was fragmentation caused by zram and GPU driver pages. Their pages cannot be migrated so compaction cannot work well, either so reclaimer ends up shrinking all of working set pages. It made system very slow and even to fail to fork easily.

Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and failed to fork easily. The problem was fragmentation caused by zram and GPU driver pages. Their pages cannot be migrated so compaction cannot work well, either so reclaimer ends up shrinking all of working set pages. It made system very slow and even to fail to fork easily.

Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and failed to fork easily. The problem was fragmentation caused by zram and GPU driver pages. Their pages cannot be migrated so compaction cannot work well, either so reclaimer ends up shrinking all of working set pages. It made system very slow and even to fail to fork easily.

Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and failed to fork easily. The problem was fragmentation caused by zram and GPU driver pages. Their pages cannot be migrated so compaction cannot work well, either so reclaimer ends up shrinking all of working set pages. It made system very slow and even to fail to fork easily.

Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and failed to fork easily. The problem was fragmentation caused by zram and GPU driver pages. Their pages cannot be migrated so compaction cannot work well, either so reclaimer ends up shrinking all of working set pages. It made system very slow and even to fail to fork easily.

Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and failed to fork easily. The problem was fragmentation caused by zram and GPU driver pages. Their pages cannot be migrated so compaction cannot work well, either so reclaimer ends up shrinking all of working set pages. It made system very slow and even to fail to fork easily.