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| author |   David Vrabel <david.vrabel@citrix.com> | 2015-01-08 18:06:01 +0000 |
|---|---|---|
| committer | David Vrabel <david.vrabel@citrix.com> | 2015-01-28 14:03:12 +0000 |
| commit | ff4b156f166b3931894d2a8b5cdba6cdf4da0618 (patch) | |
| tree | dfb7d79d269b365b2a95efa390c0fe62a8de935e /drivers/block | |
| parent | x86/xen: require ballooned pages for grant maps (diff) | |
| download | linux-dev-ff4b156f166b3931894d2a8b5cdba6cdf4da0618.tar.xz linux-dev-ff4b156f166b3931894d2a8b5cdba6cdf4da0618.zip | |
xen/grant-table: add helpers for allocating pages
Add gnttab_alloc_pages() and gnttab_free_pages() to allocate/free pages
suitable to for granted maps.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/xen-blkback/blkback.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 63fc7f06a014..908e630240bd 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -100,7 +100,7 @@ module_param(log_stats, int, 0644); #define BLKBACK_INVALID_HANDLE (~0) -/* Number of free pages to remove on each call to free_xenballooned_pages */ +/* Number of free pages to remove on each call to gnttab_free_pages */ #define NUM_BATCH_FREE_PAGES 10 static inline int get_free_page(struct xen_blkif *blkif, struct page **page) @@ -111,7 +111,7 @@ static inline int get_free_page(struct xen_blkif *blkif, struct page **page) if (list_empty(&blkif->free_pages)) { BUG_ON(blkif->free_pages_num != 0); spin_unlock_irqrestore(&blkif->free_pages_lock, flags); - return alloc_xenballooned_pages(1, page, false); + return gnttab_alloc_pages(1, page); } BUG_ON(blkif->free_pages_num == 0); page[0] = list_first_entry(&blkif->free_pages, struct page, lru); @@ -151,14 +151,14 @@ static inline void shrink_free_pagepool(struct xen_blkif *blkif, int num) blkif->free_pages_num--; if (++num_pages == NUM_BATCH_FREE_PAGES) { spin_unlock_irqrestore(&blkif->free_pages_lock, flags); - free_xenballooned_pages(num_pages, page); + gnttab_free_pages(num_pages, page); spin_lock_irqsave(&blkif->free_pages_lock, flags); num_pages = 0; } } spin_unlock_irqrestore(&blkif->free_pages_lock, flags); if (num_pages != 0) - free_xenballooned_pages(num_pages, page); + gnttab_free_pages(num_pages, page); } #define vaddr(page) ((unsigned long)pfn_to_kaddr(page_to_pfn(page))) |