diff options
| -rw-r--r-- | arch/x86/xen/grant-table.c | 2 | ||||
| -rw-r--r-- | drivers/xen/balloon.c | 21 | ||||
| -rw-r--r-- | drivers/xen/grant-table.c | 2 | ||||
| -rw-r--r-- | drivers/xen/privcmd.c | 2 | ||||
| -rw-r--r-- | drivers/xen/xenbus/xenbus_client.c | 3 | ||||
| -rw-r--r-- | include/xen/balloon.h | 3 |
6 files changed, 13 insertions, 20 deletions
diff --git a/arch/x86/xen/grant-table.c b/arch/x86/xen/grant-table.c index 1580e7a5a4cf..e079500b17f3 100644 --- a/arch/x86/xen/grant-table.c +++ b/arch/x86/xen/grant-table.c @@ -133,7 +133,7 @@ static int __init xlated_setup_gnttab_pages(void) kfree(pages); return -ENOMEM; } - rc = alloc_xenballooned_pages(nr_grant_frames, pages, 0 /* lowmem */); + rc = alloc_xenballooned_pages(nr_grant_frames, pages); if (rc) { pr_warn("%s Couldn't balloon alloc %ld pfns rc:%d\n", __func__, nr_grant_frames, rc); diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index ac6391bd8029..7ec933d505d2 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -136,17 +136,16 @@ static void balloon_append(struct page *page) } /* balloon_retrieve: rescue a page from the balloon, if it is not empty. */ -static struct page *balloon_retrieve(bool prefer_highmem) +static struct page *balloon_retrieve(bool require_lowmem) { struct page *page; if (list_empty(&ballooned_pages)) return NULL; - if (prefer_highmem) - page = list_entry(ballooned_pages.prev, struct page, lru); - else - page = list_entry(ballooned_pages.next, struct page, lru); + page = list_entry(ballooned_pages.next, struct page, lru); + if (require_lowmem && PageHighMem(page)) + return NULL; list_del(&page->lru); if (PageHighMem(page)) @@ -521,24 +520,20 @@ EXPORT_SYMBOL_GPL(balloon_set_new_target); * alloc_xenballooned_pages - get pages that have been ballooned out * @nr_pages: Number of pages to get * @pages: pages returned - * @highmem: allow highmem pages * @return 0 on success, error otherwise */ -int alloc_xenballooned_pages(int nr_pages, struct page **pages, bool highmem) +int alloc_xenballooned_pages(int nr_pages, struct page **pages) { int pgno = 0; struct page *page; mutex_lock(&balloon_mutex); while (pgno < nr_pages) { - page = balloon_retrieve(highmem); - if (page && (highmem || !PageHighMem(page))) { + page = balloon_retrieve(true); + if (page) { pages[pgno++] = page; } else { enum bp_state st; - if (page) - balloon_append(page); - st = decrease_reservation(nr_pages - pgno, - highmem ? GFP_HIGHUSER : GFP_USER); + st = decrease_reservation(nr_pages - pgno, GFP_USER); if (st != BP_DONE) goto out_undo; } diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c index 62f591f8763c..a4b702c9ac68 100644 --- a/drivers/xen/grant-table.c +++ b/drivers/xen/grant-table.c @@ -687,7 +687,7 @@ int gnttab_alloc_pages(int nr_pages, struct page **pages) int i; int ret; - ret = alloc_xenballooned_pages(nr_pages, pages, false); + ret = alloc_xenballooned_pages(nr_pages, pages); if (ret < 0) return ret; diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c index 5e9adac928e6..b199ad3d4587 100644 --- a/drivers/xen/privcmd.c +++ b/drivers/xen/privcmd.c @@ -401,7 +401,7 @@ static int alloc_empty_pages(struct vm_area_struct *vma, int numpgs) if (pages == NULL) return -ENOMEM; - rc = alloc_xenballooned_pages(numpgs, pages, 0); + rc = alloc_xenballooned_pages(numpgs, pages); if (rc != 0) { pr_warn("%s Could not alloc %d pfns rc:%d\n", __func__, numpgs, rc); diff --git a/drivers/xen/xenbus/xenbus_client.c b/drivers/xen/xenbus/xenbus_client.c index 2ba09c1195c8..aa304d05101b 100644 --- a/drivers/xen/xenbus/xenbus_client.c +++ b/drivers/xen/xenbus/xenbus_client.c @@ -614,8 +614,7 @@ static int xenbus_map_ring_valloc_hvm(struct xenbus_device *dev, if (!node) return -ENOMEM; - err = alloc_xenballooned_pages(nr_grefs, node->hvm.pages, - false /* lowmem */); + err = alloc_xenballooned_pages(nr_grefs, node->hvm.pages); if (err) goto out_err; diff --git a/include/xen/balloon.h b/include/xen/balloon.h index c8aee7a8b8d2..83efdeb243bf 100644 --- a/include/xen/balloon.h +++ b/include/xen/balloon.h @@ -22,8 +22,7 @@ extern struct balloon_stats balloon_stats; void balloon_set_new_target(unsigned long target); -int alloc_xenballooned_pages(int nr_pages, struct page **pages, - bool highmem); +int alloc_xenballooned_pages(int nr_pages, struct page **pages); void free_xenballooned_pages(int nr_pages, struct page **pages); struct device; |