search for: balloon_page_list_dequeue

...e(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 a/mm/balloon_compaction.c b/mm/balloon_compaction.c > index ef858d547e2d..a2995002edc2...

...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 a/mm/balloon_compaction.c b/mm/balloon_compaction.c index ef858d547e2d..a2995002edc2 100644 --- a/mm/balloon_compac...

...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 a/mm/balloon_compaction.c b/mm/balloon_compaction.c index ef858d547e2d..b7bd72612c5a 100644 --- a/mm/balloon_compac...

...nqueue(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 *balloon) > { > diff --git a/mm/balloon_compaction.c b/mm/balloon_compaction.c > index ef858d547e2d..b8e82864f82c 100...

...e(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. Callers also seem to assume int. > static inline void balloon_devinfo_init(struct balloon_dev_info *balloon) > { >...

...> > > As this is scanning pages one by one anyway, it will be useful > > to have this return the # of pages enqueued. > > Sure. > > > > >> +} > >> +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. > >> + * @pages: pointer to the list of pages that would be returned to the caller. > >> +...

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

...>> 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. > > Callers also seem to assume int. > > Only because on the previous iteration > ( https:...

...ions(+), 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. > * @pages: point...

From: Wei Wang <wei.w.wang at intel.com> A #GP is reported in the guest when requesting balloon inflation via virtio-balloon. The reason is that the virtio-balloon driver has removed the page from its internal page list (via balloon_page_pop), but balloon_page_enqueue_one also calls "list_del" to do the removal. This is necessary when it's used from balloon_page_enqueue_list,

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

.../mm/balloon_compaction.c b/mm/balloon_compaction.c > >>>>>> index 26de020aae7b..067810b32813 100644 > >>>>>> --- a/mm/balloon_compaction.c > >>>>>> +++ b/mm/balloon_compaction.c > >>>>>> @@ -112,23 +112,35 @@ size_t balloon_page_list_dequeue(struct balloon_dev_info *b_dev_info, > >>>>>> EXPORT_SYMBOL_GPL(balloon_page_list_dequeue); > >>>>>> > >>>>>> /* > >>>>>> - * balloon_page_alloc - allocates a new page for insertion into the balloon > >>&g...

...ail to dequeue some pages even if the balloon + * isn't empty - since the page list can be temporarily empty due to compaction + * of isolated pages. * - * Return: number of pages that were added to the @pages list. + * Returns: number of pages that were added to the @pages list. */ size_t balloon_page_list_dequeue(struct balloon_dev_info *b_dev_info, struct list_head *pages, size_t n_req_pages) @@ -112,12 +113,14 @@ EXPORT_SYMBOL_GPL(balloon_page_list_dequeue); /* * balloon_page_alloc - allocates a new page for insertion into the balloon - * page list. + * page list. * - * Driver must call...

...ail to dequeue some pages even if the balloon + * isn't empty - since the page list can be temporarily empty due to compaction + * of isolated pages. * - * Return: number of pages that were added to the @pages list. + * Returns: number of pages that were added to the @pages list. */ size_t balloon_page_list_dequeue(struct balloon_dev_info *b_dev_info, struct list_head *pages, size_t n_req_pages) @@ -112,12 +113,13 @@ EXPORT_SYMBOL_GPL(balloon_page_list_dequeue); /* * balloon_page_alloc - allocates a new page for insertion into the balloon - * page list. + * page list. * - * Driver must call...

...compaction.c b/mm/balloon_compaction.c >>>>>>>> index 26de020aae7b..067810b32813 100644 >>>>>>>> --- a/mm/balloon_compaction.c >>>>>>>> +++ b/mm/balloon_compaction.c >>>>>>>> @@ -112,23 +112,35 @@ size_t balloon_page_list_dequeue(struct balloon_dev_info *b_dev_info, >>>>>>>> EXPORT_SYMBOL_GPL(balloon_page_list_dequeue); >>>>>>>> >>>>>>>> /* >>>>>>>> - * balloon_page_alloc - allocates a new page for insertion into the balloon >...

...ate(struct page *page, >>>> diff --git a/mm/balloon_compaction.c b/mm/balloon_compaction.c >>>> index 26de020aae7b..067810b32813 100644 >>>> --- a/mm/balloon_compaction.c >>>> +++ b/mm/balloon_compaction.c >>>> @@ -112,23 +112,35 @@ size_t balloon_page_list_dequeue(struct balloon_dev_info *b_dev_info, >>>> EXPORT_SYMBOL_GPL(balloon_page_list_dequeue); >>>> >>>> /* >>>> - * balloon_page_alloc - allocates a new page for insertion into the balloon >>>> - * page list. >>>> + * balloon_pages...

...ons(+), 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. > * @pages: pointer to the list of pages t...

...ons(+), 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. > * @pages: pointer to the list of pages t...

...s(+), 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. > * @pages: pointer to the list of pages...