search for: migrate_prep

...migrate_pages(struct list_head *l, new_page_t new, free_page_t free, > unsigned long private, enum migrate_mode mode, int reason); > +extern bool isolate_movable_page(struct page *page, isolate_mode_t mode); > +extern void putback_movable_page(struct page *page); > > extern int migrate_prep(void); > extern int migrate_prep_local(void); given that some of Movable users can be built as modules, shouldn't at least some of those symbols be exported via EXPORT_SYMBOL? -ss

...migrate_pages(struct list_head *l, new_page_t new, free_page_t free, > unsigned long private, enum migrate_mode mode, int reason); > +extern bool isolate_movable_page(struct page *page, isolate_mode_t mode); > +extern void putback_movable_page(struct page *page); > > extern int migrate_prep(void); > extern int migrate_prep_local(void); given that some of Movable users can be built as modules, shouldn't at least some of those symbols be exported via EXPORT_SYMBOL? -ss

...migrate_pages(struct list_head *l, new_page_t new, free_page_t free, > unsigned long private, enum migrate_mode mode, int reason); > +extern bool isolate_movable_page(struct page *page, isolate_mode_t mode); > +extern void putback_movable_page(struct page *page); > > extern int migrate_prep(void); > extern int migrate_prep_local(void); __ClearPageMovable() is under CONFIG_MIGRATION in include/linux/migrate.h, but zsmalloc checks for CONFIG_COMPACTION. can we have stub declarations of movable functions for !CONFIG_MIGRATION builds? otherwise the users (zsmalloc, for example) have...

...migrate_pages(struct list_head *l, new_page_t new, free_page_t free, > unsigned long private, enum migrate_mode mode, int reason); > +extern bool isolate_movable_page(struct page *page, isolate_mode_t mode); > +extern void putback_movable_page(struct page *page); > > extern int migrate_prep(void); > extern int migrate_prep_local(void); __ClearPageMovable() is under CONFIG_MIGRATION in include/linux/migrate.h, but zsmalloc checks for CONFIG_COMPACTION. can we have stub declarations of movable functions for !CONFIG_MIGRATION builds? otherwise the users (zsmalloc, for example) have...

..._head *l, new_page_t new, free_page_t free, > > unsigned long private, enum migrate_mode mode, int reason); > > +extern bool isolate_movable_page(struct page *page, isolate_mode_t mode); > > +extern void putback_movable_page(struct page *page); > > > > extern int migrate_prep(void); > > extern int migrate_prep_local(void); > > given that some of Movable users can be built as modules, shouldn't > at least some of those symbols be exported via EXPORT_SYMBOL? Those functions aim for VM compaction so driver shouldn't use it. Only driver should be a...

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

...migrate_pages(struct list_head *l, new_page_t new, free_page_t free, > unsigned long private, enum migrate_mode mode, int reason); > +extern bool isolate_movable_page(struct page *page, isolate_mode_t mode); > +extern void putback_movable_page(struct page *page); > > extern int migrate_prep(void); > extern int migrate_prep_local(void); > diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h > index f4ed4f1b0c77..3885064641c4 100644 > --- a/include/linux/page-flags.h > +++ b/include/linux/page-flags.h > @@ -129,6 +129,10 @@ enum pageflags { > >...

...migrate_pages(struct list_head *l, new_page_t new, free_page_t free, > unsigned long private, enum migrate_mode mode, int reason); > +extern bool isolate_movable_page(struct page *page, isolate_mode_t mode); > +extern void putback_movable_page(struct page *page); > > extern int migrate_prep(void); > extern int migrate_prep_local(void); > diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h > index f4ed4f1b0c77..3885064641c4 100644 > --- a/include/linux/page-flags.h > +++ b/include/linux/page-flags.h > @@ -129,6 +129,10 @@ enum pageflags { > >...

...free_page_t free, > > > unsigned long private, enum migrate_mode mode, int reason); > > > +extern bool isolate_movable_page(struct page *page, isolate_mode_t mode); > > > +extern void putback_movable_page(struct page *page); > > > > > > extern int migrate_prep(void); > > > extern int migrate_prep_local(void); > > > diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h > > > index f4ed4f1b0c77..3885064641c4 100644 > > > --- a/include/linux/page-flags.h > > > +++ b/include/linux/page-flags.h >...

...free_page_t free, > > > unsigned long private, enum migrate_mode mode, int reason); > > > +extern bool isolate_movable_page(struct page *page, isolate_mode_t mode); > > > +extern void putback_movable_page(struct page *page); > > > > > > extern int migrate_prep(void); > > > extern int migrate_prep_local(void); > > > diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h > > > index f4ed4f1b0c77..3885064641c4 100644 > > > --- a/include/linux/page-flags.h > > > +++ b/include/linux/page-flags.h >...

...grate_mode); extern int migrate_pages(struct list_head *l, new_page_t new, free_page_t free, unsigned long private, enum migrate_mode mode, int reason); +extern bool isolate_movable_page(struct page *page, isolate_mode_t mode); +extern void putback_movable_page(struct page *page); extern int migrate_prep(void); extern int migrate_prep_local(void); diff --git a/include/linux/mm.h b/include/linux/mm.h index 7b52750caf9e..91e9ebc44e37 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1021,6 +1021,7 @@ static inline pgoff_t page_file_index(struct page *page) } bool page_mapped(struct pa...

...grate_mode); extern int migrate_pages(struct list_head *l, new_page_t new, free_page_t free, unsigned long private, enum migrate_mode mode, int reason); +extern bool isolate_movable_page(struct page *page, isolate_mode_t mode); +extern void putback_movable_page(struct page *page); extern int migrate_prep(void); extern int migrate_prep_local(void); diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index f4ed4f1b0c77..3885064641c4 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -129,6 +129,10 @@ enum pageflags { /* Compound pages. Stored in first ta...

...grate_mode); extern int migrate_pages(struct list_head *l, new_page_t new, free_page_t free, unsigned long private, enum migrate_mode mode, int reason); +extern bool isolate_movable_page(struct page *page, isolate_mode_t mode); +extern void putback_movable_page(struct page *page); extern int migrate_prep(void); extern int migrate_prep_local(void); diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 19724e6ebd26..cdf07c3f3a6f 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -129,6 +129,10 @@ enum pageflags { /* Compound pages. Stored in first ta...

...grate_mode); extern int migrate_pages(struct list_head *l, new_page_t new, free_page_t free, unsigned long private, enum migrate_mode mode, int reason); +extern bool isolate_movable_page(struct page *page, isolate_mode_t mode); +extern void putback_movable_page(struct page *page); extern int migrate_prep(void); extern int migrate_prep_local(void); diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index f4ed4f1b0c77..77ebf8fdbc6e 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -129,6 +129,10 @@ enum pageflags { /* Compound pages. Stored in first ta...

..._head *l, new_page_t new, free_page_t free, > > unsigned long private, enum migrate_mode mode, int reason); > > +extern bool isolate_movable_page(struct page *page, isolate_mode_t mode); > > +extern void putback_movable_page(struct page *page); > > > > extern int migrate_prep(void); > > extern int migrate_prep_local(void); > > diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h > > index f4ed4f1b0c77..3885064641c4 100644 > > --- a/include/linux/page-flags.h > > +++ b/include/linux/page-flags.h > > @@ -129,6 +129,10 @...

...migrate_pages(struct list_head *l, new_page_t new, free_page_t free, > unsigned long private, enum migrate_mode mode, int reason); > +extern bool isolate_movable_page(struct page *page, isolate_mode_t mode); > +extern void putback_movable_page(struct page *page); > > extern int migrate_prep(void); > extern int migrate_prep_local(void); > diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h > index f4ed4f1b0c77..77ebf8fdbc6e 100644 > --- a/include/linux/page-flags.h > +++ b/include/linux/page-flags.h > @@ -129,6 +129,10 @@ enum pageflags { > >...

...migrate_pages(struct list_head *l, new_page_t new, free_page_t free, > unsigned long private, enum migrate_mode mode, int reason); > +extern bool isolate_movable_page(struct page *page, isolate_mode_t mode); > +extern void putback_movable_page(struct page *page); > > extern int migrate_prep(void); > extern int migrate_prep_local(void); > diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h > index f4ed4f1b0c77..77ebf8fdbc6e 100644 > --- a/include/linux/page-flags.h > +++ b/include/linux/page-flags.h > @@ -129,6 +129,10 @@ enum pageflags { > >...

...list_head *l, new_page_t new, free_page_t free, > > unsigned long private, enum migrate_mode mode, int reason); > >+extern bool isolate_movable_page(struct page *page, isolate_mode_t mode); > >+extern void putback_movable_page(struct page *page); > > > > extern int migrate_prep(void); > > extern int migrate_prep_local(void); > >diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h > >index f4ed4f1b0c77..77ebf8fdbc6e 100644 > >--- a/include/linux/page-flags.h > >+++ b/include/linux/page-flags.h > >@@ -129,6 +129,10 @@ enu...

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