diff options
Diffstat (limited to 'drivers/misc/vmw_balloon.c')
| -rw-r--r-- | drivers/misc/vmw_balloon.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/misc/vmw_balloon.c b/drivers/misc/vmw_balloon.c index f8240b87df229..869ec842729ef 100644 --- a/drivers/misc/vmw_balloon.c +++ b/drivers/misc/vmw_balloon.c @@ -557,6 +557,36 @@ vmballoon_page_in_frames(enum vmballoon_page_size_type page_size) } /** + * vmballoon_mark_page_offline() - mark a page as offline + * @page: pointer for the page. + * @page_size: the size of the page. + */ +static void +vmballoon_mark_page_offline(struct page *page, + enum vmballoon_page_size_type page_size) +{ + int i; + + for (i = 0; i < vmballoon_page_in_frames(page_size); i++) + __SetPageOffline(page + i); +} + +/** + * vmballoon_mark_page_online() - mark a page as online + * @page: pointer for the page. + * @page_size: the size of the page. + */ +static void +vmballoon_mark_page_online(struct page *page, + enum vmballoon_page_size_type page_size) +{ + int i; + + for (i = 0; i < vmballoon_page_in_frames(page_size); i++) + __ClearPageOffline(page + i); +} + +/** * vmballoon_send_get_target() - Retrieve desired balloon size from the host. * * @b: pointer to the balloon. @@ -612,6 +642,7 @@ static int vmballoon_alloc_page_list(struct vmballoon *b, ctl->page_size); if (page) { + vmballoon_mark_page_offline(page, ctl->page_size); /* Success. Add the page to the list and continue. */ list_add(&page->lru, &ctl->pages); continue; @@ -850,6 +881,7 @@ static void vmballoon_release_page_list(struct list_head *page_list, list_for_each_entry_safe(page, tmp, page_list, lru) { list_del(&page->lru); + vmballoon_mark_page_online(page, page_size); __free_pages(page, vmballoon_page_order(page_size)); } |