search for: balloon_page_list_enqueu

...e_one(struct balloon_dev_info *b_dev_info, * memory corruption is possible and we should stop execution. */ BUG_ON(!trylock_page(page)); - list_del(&page->lru); balloon_page_insert(b_dev_info, page); unlock_page(page); __count_vm_event(BALLOON_INFLATE); @@ -47,6 +46,7 @@ size_t balloon_page_list_enqueue(struct balloon_dev_info *b_dev_info, spin_lock_irqsave(&b_dev_info->pages_lock, flags); list_for_each_entry_safe(page, tmp, pages, lru) { + list_del(&page->lru); balloon_page_enqueue_one(b_dev_info, page); n_pages++; } @@ -128,13 +128,19 @@ struct page *balloon_page_al...

...loon_compaction.h > @@ -64,6 +64,10 @@ extern struct page *balloon_page_alloc(void); > extern void balloon_page_enqueue(struct balloon_dev_info *b_dev_info, > struct page *page); > extern struct page *balloon_page_dequeue(struct balloon_dev_info *b_dev_info); > +extern size_t balloon_page_list_enqueue(struct balloon_dev_info *b_dev_info, > + struct list_head *pages); > +extern size_t balloon_page_list_dequeue(struct balloon_dev_info *b_dev_info, > + struct list_head *pages, size_t n_req_pages); > > static inline void balloon_devinfo_init(struct balloon_dev_inf...

...e_one(struct balloon_dev_info *b_dev_info, * memory corruption is possible and we should stop execution. */ BUG_ON(!trylock_page(page)); - list_del(&page->lru); balloon_page_insert(b_dev_info, page); unlock_page(page); __count_vm_event(BALLOON_INFLATE); @@ -47,6 +46,7 @@ size_t balloon_page_list_enqueue(struct balloon_dev_info *b_dev_info, spin_lock_irqsave(&b_dev_info->pages_lock, flags); list_for_each_entry_safe(page, tmp, pages, lru) { + list_del(&page->lru); balloon_page_enqueue_one(b_dev_info, page); n_pages++; } @@ -128,13 +128,19 @@ struct page *balloon_page_al...

...64,10 @@ extern struct page *balloon_page_alloc(void); > >> extern void balloon_page_enqueue(struct balloon_dev_info *b_dev_info, > >> struct page *page); > >> extern struct page *balloon_page_dequeue(struct balloon_dev_info *b_dev_info); > >> +extern size_t balloon_page_list_enqueue(struct balloon_dev_info *b_dev_info, > >> + struct list_head *pages); > >> +extern size_t balloon_page_list_dequeue(struct balloon_dev_info *b_dev_info, > >> + struct list_head *pages, int n_req_pages); > > > > Why size_t I wonder? It can ne...

...e_one(struct balloon_dev_info *b_dev_info, * memory corruption is possible and we should stop execution. */ BUG_ON(!trylock_page(page)); - list_del(&page->lru); balloon_page_insert(b_dev_info, page); unlock_page(page); __count_vm_event(BALLOON_INFLATE); @@ -47,6 +46,7 @@ size_t balloon_page_list_enqueue(struct balloon_dev_info *b_dev_info, spin_lock_irqsave(&b_dev_info->pages_lock, flags); list_for_each_entry_safe(page, tmp, pages, lru) { + list_del(&page->lru); balloon_page_enqueue_one(b_dev_info, page); n_pages++; } @@ -128,13 +128,19 @@ struct page *balloon_page_al...

...h +++ b/include/linux/balloon_compaction.h @@ -64,6 +64,10 @@ extern struct page *balloon_page_alloc(void); extern void balloon_page_enqueue(struct balloon_dev_info *b_dev_info, struct page *page); extern struct page *balloon_page_dequeue(struct balloon_dev_info *b_dev_info); +extern size_t balloon_page_list_enqueue(struct balloon_dev_info *b_dev_info, + struct list_head *pages); +extern size_t balloon_page_list_dequeue(struct balloon_dev_info *b_dev_info, + struct list_head *pages, size_t n_req_pages); static inline void balloon_devinfo_init(struct balloon_dev_info *balloon) { diff --git...

...h +++ b/include/linux/balloon_compaction.h @@ -64,6 +64,10 @@ extern struct page *balloon_page_alloc(void); extern void balloon_page_enqueue(struct balloon_dev_info *b_dev_info, struct page *page); extern struct page *balloon_page_dequeue(struct balloon_dev_info *b_dev_info); +extern size_t balloon_page_list_enqueue(struct balloon_dev_info *b_dev_info, + struct list_head *pages); +extern size_t balloon_page_list_dequeue(struct balloon_dev_info *b_dev_info, + struct list_head *pages, size_t n_req_pages); static inline void balloon_devinfo_init(struct balloon_dev_info *balloon) { diff --git...

...alloon_compaction.h > @@ -72,6 +72,10 @@ extern struct page *balloon_page_alloc(void); > extern void balloon_page_enqueue(struct balloon_dev_info *b_dev_info, > struct page *page); > extern struct page *balloon_page_dequeue(struct balloon_dev_info *b_dev_info); > +extern void balloon_page_list_enqueue(struct balloon_dev_info *b_dev_info, > + struct list_head *pages); > +extern int balloon_page_list_dequeue(struct balloon_dev_info *b_dev_info, > + struct list_head *pages, int n_req_pages); > > static inline void balloon_devinfo_init(struct balloon_dev_info *bal...

...ore definitively - * removing it from the guest system. + * Driver must call this function to properly enqueue balloon pages before + * definitively removing them from the guest system. * - * Return: number of pages that were enqueued. + * Returns: number of pages that were enqueued. */ size_t balloon_page_list_enqueue(struct balloon_dev_info *b_dev_info, struct list_head *pages) @@ -63,14 +63,15 @@ EXPORT_SYMBOL_GPL(balloon_page_list_enqueue); * @n_req_pages: number of requested pages. * * Driver must call this function to properly de-allocate a previous enlisted - * balloon pages before definetivel...

...ore definitively - * removing it from the guest system. + * Driver must call this function to properly enqueue balloon pages before + * definitively removing them from the guest system. * - * Return: number of pages that were enqueued. + * Returns: number of pages that were enqueued. */ size_t balloon_page_list_enqueue(struct balloon_dev_info *b_dev_info, struct list_head *pages) @@ -63,14 +63,15 @@ EXPORT_SYMBOL_GPL(balloon_page_list_enqueue); * @n_req_pages: number of requested pages. * * Driver must call this function to properly de-allocate a previous enlisted - * balloon pages before definetivel...

...loon_compaction.h > @@ -64,6 +64,10 @@ extern struct page *balloon_page_alloc(void); > extern void balloon_page_enqueue(struct balloon_dev_info *b_dev_info, > struct page *page); > extern struct page *balloon_page_dequeue(struct balloon_dev_info *b_dev_info); > +extern size_t balloon_page_list_enqueue(struct balloon_dev_info *b_dev_info, > + struct list_head *pages); > +extern size_t balloon_page_list_dequeue(struct balloon_dev_info *b_dev_info, > + struct list_head *pages, int n_req_pages); > Why size_t I wonder? It can never be > n_req_pages which is int. Ca...

...he overhead of storing and restoring > >> IRQs by batching the operations. In addition they do not panic if the > >> list of pages is empty. > >> > > [Snip] > > First, thanks for the quick feedback. > > >> + > >> +/** > >> + * balloon_page_list_enqueue() - inserts a list of pages into the balloon page > >> + * list. > >> + * @b_dev_info: balloon device descriptor where we will insert a new page to > >> + * @pages: pages to enqueue - allocated using balloon_page_alloc. > >> + * > >> + * Driver must...

VMware balloon enhancements: adding support for memory compaction, memory shrinker (to prevent OOM) and splitting of refused pages to prevent recurring inflations. Patches 1-2: Support for compaction Patch 3: Support for memory shrinker - disabled by default Patch 4: Split refused pages to improve performance v2->v3: * Fixing wrong argument type (int->size_t) [Michael] * Fixing a comment

...+ balloon > + * page before definitively removing the page from the guest system. > * > - * Drivers must not call balloon_page_enqueue on pages that have been > - * pushed to a list with balloon_page_push before removing them with > - * balloon_page_pop. To all pages on a list, use balloon_page_list_enqueue > - * instead. > - * > - * This function returns the page address for the recently enqueued page or > - * NULL in the case we fail to allocate a new page this turn. > + * Drivers must not call balloon_page_enqueue on pages that have been > + pushed to > + * a list with balloon...

...ction.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/mm/balloon_compaction.c b/mm/balloon_compaction.c > index 26de020aae7b..907fefde2572 100644 > --- a/mm/balloon_compaction.c > +++ b/mm/balloon_compaction.c > @@ -58,7 +58,7 @@ EXPORT_SYMBOL_GPL(balloon_page_list_enqueue); > /** > * balloon_page_list_dequeue() - removes pages from balloon's page list and > * returns a list of the pages. > - * @b_dev_info: balloon device decriptor where we will grab a page from. > + * @b_dev_info: balloon device descriptor where...

VMware balloon enhancements: adding support for memory compaction, memory shrinker (to prevent OOM) and splitting of refused pages to prevent recurring inflations. Patches 1-2: Support for compaction Patch 3: Support for memory shrinker - disabled by default Patch 4: Split refused pages to improve performance v3->v4: * "get around to" comment [Michael] * Put list_add under page lock

VMware balloon enhancements: adding support for memory compaction, memory shrinker (to prevent OOM) and splitting of refused pages to prevent recurring inflations. Patches 1-2: Support for compaction Patch 3: Support for memory shrinker - disabled by default Patch 4: Split refused pages to improve performance v3->v4: * "get around to" comment [Michael] * Put list_add under page lock

...m-v3.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/mm/balloon_compaction.c b/mm/balloon_compaction.c > index 26de020aae7b..907fefde2572 100644 > --- a/mm/balloon_compaction.c > +++ b/mm/balloon_compaction.c > @@ -58,7 +58,7 @@ EXPORT_SYMBOL_GPL(balloon_page_list_enqueue); > /** > * balloon_page_list_dequeue() - removes pages from balloon's page list and > * returns a list of the pages. > - * @b_dev_info: balloon device decriptor where we will grab a page from. > + * @b_dev_info: balloon device descriptor where we will grab a page from....

...tion.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/mm/balloon_compaction.c b/mm/balloon_compaction.c > index 26de020aae7b..907fefde2572 100644 > --- a/mm/balloon_compaction.c > +++ b/mm/balloon_compaction.c > @@ -58,7 +58,7 @@ EXPORT_SYMBOL_GPL(balloon_page_list_enqueue); > /** > * balloon_page_list_dequeue() - removes pages from balloon's page list and > * returns a list of the pages. > - * @b_dev_info: balloon device decriptor where we will grab a page from. > + * @b_dev_info: balloon device descriptor where we will grab a page from....

...ion.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/mm/balloon_compaction.c b/mm/balloon_compaction.c > index 26de020aae7b..907fefde2572 100644 > --- a/mm/balloon_compaction.c > +++ b/mm/balloon_compaction.c > @@ -58,7 +58,7 @@ EXPORT_SYMBOL_GPL(balloon_page_list_enqueue); > /** > * balloon_page_list_dequeue() - removes pages from balloon's page list and > * returns a list of the pages. > - * @b_dev_info: balloon device decriptor where we will grab a page from. > + * @b_dev_info: balloon device descriptor where we will grab a page fr...