Displaying 20 results from an estimated 58 matches for "__clearpagemovable".
2016 May 30
1
PATCH v6v2 02/12] mm: migrate: support non-lru movable page migration
...inchan Kim wrote:
> >After isolation, VM calls migratepage of driver with isolated page.
> >The function of migratepage is to move content of the old page to new page
> >and set up fields of struct page newpage. Keep in mind that you should
> >clear PG_movable of oldpage via __ClearPageMovable under page_lock if you
> >migrated the oldpage successfully and returns 0.
>
> This "clear PG_movable" is one of the reasons I was confused about
> what __ClearPageMovable() really does. There's no actual
> "PG_movable" page flag and the function doesn'...
2016 May 30
1
PATCH v6v2 02/12] mm: migrate: support non-lru movable page migration
...inchan Kim wrote:
> >After isolation, VM calls migratepage of driver with isolated page.
> >The function of migratepage is to move content of the old page to new page
> >and set up fields of struct page newpage. Keep in mind that you should
> >clear PG_movable of oldpage via __ClearPageMovable under page_lock if you
> >migrated the oldpage successfully and returns 0.
>
> This "clear PG_movable" is one of the reasons I was confused about
> what __ClearPageMovable() really does. There's no actual
> "PG_movable" page flag and the function doesn'...
2016 May 30
0
PATCH v6v2 02/12] mm: migrate: support non-lru movable page migration
...2016 03:39 AM, Minchan Kim wrote:
> After isolation, VM calls migratepage of driver with isolated page.
> The function of migratepage is to move content of the old page to new page
> and set up fields of struct page newpage. Keep in mind that you should
> clear PG_movable of oldpage via __ClearPageMovable under page_lock if you
> migrated the oldpage successfully and returns 0.
This "clear PG_movable" is one of the reasons I was confused about what
__ClearPageMovable() really does. There's no actual "PG_movable" page
flag and the function doesn't clear even the actu...
2016 May 16
1
[PATCH v5 02/12] mm: migrate: support non-lru movable page migration
...t; +++ b/include/linux/migrate.h
> @@ -32,11 +32,16 @@ extern char *migrate_reason_names[MR_TYPES];
>
> #ifdef CONFIG_MIGRATION
>
> +extern int PageMovable(struct page *page);
> +extern void __SetPageMovable(struct page *page, struct address_space *mapping);
> +extern void __ClearPageMovable(struct page *page);
> extern void putback_movable_pages(struct list_head *l);
> extern int migrate_page(struct address_space *,
> struct page *, struct page *, enum migrate_mode);
> extern int migrate_pages(struct list_head *l, new_page_t new, free_page_t free,
> unsigned l...
2016 May 16
1
[PATCH v5 02/12] mm: migrate: support non-lru movable page migration
...t; +++ b/include/linux/migrate.h
> @@ -32,11 +32,16 @@ extern char *migrate_reason_names[MR_TYPES];
>
> #ifdef CONFIG_MIGRATION
>
> +extern int PageMovable(struct page *page);
> +extern void __SetPageMovable(struct page *page, struct address_space *mapping);
> +extern void __ClearPageMovable(struct page *page);
> extern void putback_movable_pages(struct list_head *l);
> extern int migrate_page(struct address_space *,
> struct page *, struct page *, enum migrate_mode);
> extern int migrate_pages(struct list_head *l, new_page_t new, free_page_t free,
> unsigned l...
2016 May 30
5
PATCH v6v2 02/12] mm: migrate: support non-lru movable page migration
...*newpage, struct page *oldpage, enum migrate_mode);
After isolation, VM calls migratepage of driver with isolated page.
The function of migratepage is to move content of the old page to new page
and set up fields of struct page newpage. Keep in mind that you should
clear PG_movable of oldpage via __ClearPageMovable under page_lock if you
migrated the oldpage successfully and returns 0.
If driver cannot migrate the page at the moment, driver can return -EAGAIN.
On -EAGAIN, VM will retry page migration in a short time because VM interprets
-EAGAIN as "temporal migration failure". On returning any erro...
2016 May 30
5
PATCH v6v2 02/12] mm: migrate: support non-lru movable page migration
...*newpage, struct page *oldpage, enum migrate_mode);
After isolation, VM calls migratepage of driver with isolated page.
The function of migratepage is to move content of the old page to new page
and set up fields of struct page newpage. Keep in mind that you should
clear PG_movable of oldpage via __ClearPageMovable under page_lock if you
migrated the oldpage successfully and returns 0.
If driver cannot migrate the page at the moment, driver can return -EAGAIN.
On -EAGAIN, VM will retry page migration in a short time because VM interprets
-EAGAIN as "temporal migration failure". On returning any erro...
2016 May 16
2
[PATCH v5 02/12] mm: migrate: support non-lru movable page migration
...t; +++ b/include/linux/migrate.h
> @@ -32,11 +32,16 @@ extern char *migrate_reason_names[MR_TYPES];
>
> #ifdef CONFIG_MIGRATION
>
> +extern int PageMovable(struct page *page);
> +extern void __SetPageMovable(struct page *page, struct address_space *mapping);
> +extern void __ClearPageMovable(struct page *page);
> extern void putback_movable_pages(struct list_head *l);
> extern int migrate_page(struct address_space *,
> struct page *, struct page *, enum migrate_mode);
> extern int migrate_pages(struct list_head *l, new_page_t new, free_page_t free,
> unsigned l...
2016 May 16
2
[PATCH v5 02/12] mm: migrate: support non-lru movable page migration
...t; +++ b/include/linux/migrate.h
> @@ -32,11 +32,16 @@ extern char *migrate_reason_names[MR_TYPES];
>
> #ifdef CONFIG_MIGRATION
>
> +extern int PageMovable(struct page *page);
> +extern void __SetPageMovable(struct page *page, struct address_space *mapping);
> +extern void __ClearPageMovable(struct page *page);
> extern void putback_movable_pages(struct list_head *l);
> extern int migrate_page(struct address_space *,
> struct page *, struct page *, enum migrate_mode);
> extern int migrate_pages(struct list_head *l, new_page_t new, free_page_t free,
> unsigned l...
2016 Mar 30
0
[PATCH v3 02/16] mm/compaction: support non-lru movable page migration
...+/* Caller should hold a PG_lock */
+static inline void __SetPageMovable(struct page *page,
+ struct address_space *mapping)
+{
+ page->mapping = mapping;
+ __set_bit(PG_movable, &page->flags);
+ atomic_set(&page->_mapcount, PAGE_MOVABLE_MAPCOUNT_VALUE);
+}
+
+static inline void __ClearPageMovable(struct page *page)
+{
+ atomic_set(&page->_mapcount, -1);
+ __clear_bit(PG_movable, &(page)->flags);
+ page->mapping = NULL;
+}
+
+PAGEFLAG(Isolated, isolated, PF_ANY);
+
/*
* If network-based swap is enabled, sl*b must keep track of whether pages
* were allocated from pfmemal...
2016 May 27
2
[PATCH v6 02/12] mm: migrate: support non-lru movable page migration
...oldpage, enum migrate_mode);
>
> After isolation, VM calls migratepage of driver with isolated page.
> The function of migratepage is to move content of the old page to new page
> and set up fields of struct page newpage. Keep in mind that you should
> clear PG_movable of oldpage via __ClearPageMovable under page_lock if you
> migrated the oldpage successfully and returns 0.
> If driver cannot migrate the page at the moment, driver can return -EAGAIN.
> On -EAGAIN, VM will retry page migration in a short time because VM interprets
> -EAGAIN as "temporal migration failure". O...
2016 May 27
2
[PATCH v6 02/12] mm: migrate: support non-lru movable page migration
...oldpage, enum migrate_mode);
>
> After isolation, VM calls migratepage of driver with isolated page.
> The function of migratepage is to move content of the old page to new page
> and set up fields of struct page newpage. Keep in mind that you should
> clear PG_movable of oldpage via __ClearPageMovable under page_lock if you
> migrated the oldpage successfully and returns 0.
> If driver cannot migrate the page at the moment, driver can return -EAGAIN.
> On -EAGAIN, VM will retry page migration in a short time because VM interprets
> -EAGAIN as "temporal migration failure". O...
2016 May 30
0
[PATCH v6 02/12] mm: migrate: support non-lru movable page migration
..._mode);
> >
> >After isolation, VM calls migratepage of driver with isolated page.
> >The function of migratepage is to move content of the old page to new page
> >and set up fields of struct page newpage. Keep in mind that you should
> >clear PG_movable of oldpage via __ClearPageMovable under page_lock if you
> >migrated the oldpage successfully and returns 0.
> >If driver cannot migrate the page at the moment, driver can return -EAGAIN.
> >On -EAGAIN, VM will retry page migration in a short time because VM interprets
> >-EAGAIN as "temporal migration...
2016 Apr 01
2
[PATCH v3 02/16] mm/compaction: support non-lru movable page migration
...tic inline void __SetPageMovable(struct page *page,
> + struct address_space *mapping)
> +{
> + page->mapping = mapping;
> + __set_bit(PG_movable, &page->flags);
> + atomic_set(&page->_mapcount, PAGE_MOVABLE_MAPCOUNT_VALUE);
> +}
> +
> +static inline void __ClearPageMovable(struct page *page)
> +{
> + atomic_set(&page->_mapcount, -1);
> + __clear_bit(PG_movable, &(page)->flags);
> + page->mapping = NULL;
> +}
> +
> +PAGEFLAG(Isolated, isolated, PF_ANY);
> +
> /*
> * If network-based swap is enabled, sl*b must keep tr...
2016 Apr 01
2
[PATCH v3 02/16] mm/compaction: support non-lru movable page migration
...tic inline void __SetPageMovable(struct page *page,
> + struct address_space *mapping)
> +{
> + page->mapping = mapping;
> + __set_bit(PG_movable, &page->flags);
> + atomic_set(&page->_mapcount, PAGE_MOVABLE_MAPCOUNT_VALUE);
> +}
> +
> +static inline void __ClearPageMovable(struct page *page)
> +{
> + atomic_set(&page->_mapcount, -1);
> + __clear_bit(PG_movable, &(page)->flags);
> + page->mapping = NULL;
> +}
> +
> +PAGEFLAG(Isolated, isolated, PF_ANY);
> +
> /*
> * If network-based swap is enabled, sl*b must keep tr...
2016 Apr 04
0
[PATCH v3 02/16] mm/compaction: support non-lru movable page migration
...(struct page *page,
> >+ struct address_space *mapping)
> >+{
> >+ page->mapping = mapping;
> >+ __set_bit(PG_movable, &page->flags);
> >+ atomic_set(&page->_mapcount, PAGE_MOVABLE_MAPCOUNT_VALUE);
> >+}
> >+
> >+static inline void __ClearPageMovable(struct page *page)
> >+{
> >+ atomic_set(&page->_mapcount, -1);
> >+ __clear_bit(PG_movable, &(page)->flags);
> >+ page->mapping = NULL;
> >+}
> >+
> >+PAGEFLAG(Isolated, isolated, PF_ANY);
> >+
> > /*
> > * If network-...
2016 May 20
0
[PATCH v6 02/12] mm: migrate: support non-lru movable page migration
...*newpage, struct page *oldpage, enum migrate_mode);
After isolation, VM calls migratepage of driver with isolated page.
The function of migratepage is to move content of the old page to new page
and set up fields of struct page newpage. Keep in mind that you should
clear PG_movable of oldpage via __ClearPageMovable under page_lock if you
migrated the oldpage successfully and returns 0.
If driver cannot migrate the page at the moment, driver can return -EAGAIN.
On -EAGAIN, VM will retry page migration in a short time because VM interprets
-EAGAIN as "temporal migration failure". On returning any erro...
2016 May 09
5
[PATCH v5 00/13] Support non-lru page migration
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
2016 May 09
5
[PATCH v5 00/13] Support non-lru page migration
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
2016 May 31
0
[PATCH v6v3 02/12] mm: migrate: support non-lru movable page migration
...oldpage, enum migrate_mode);
After isolation, VM calls migratepage of driver with isolated page.
The function of migratepage is to move content of the old page to new page
and set up fields of struct page newpage. Keep in mind that you should
indicate to the VM the oldpage is no longer movable via __ClearPageMovable()
under page_lock if you migrated the oldpage successfully and returns 0.
If driver cannot migrate the page at the moment, driver can return -EAGAIN.
On -EAGAIN, VM will retry page migration in a short time because VM interprets
-EAGAIN as "temporal migration failure". On returning any er...