diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hv/hv_balloon.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c index a50b7624b2a3..dd475f3bcc8a 100644 --- a/drivers/hv/hv_balloon.c +++ b/drivers/hv/hv_balloon.c @@ -681,8 +681,13 @@ static struct notifier_block hv_memory_nb = { /* Check if the particular page is backed and can be onlined and online it. */ static void hv_page_online_one(struct hv_hotadd_state *has, struct page *pg) { - if (!has_pfn_is_backed(has, page_to_pfn(pg))) + if (!has_pfn_is_backed(has, page_to_pfn(pg))) { + if (!PageOffline(pg)) + __SetPageOffline(pg); return; + } + if (PageOffline(pg)) + __ClearPageOffline(pg); /* This frame is currently backed; online the page. */ __online_page_set_limits(pg); @@ -1202,6 +1207,7 @@ static void free_balloon_pages(struct hv_dynmem_device *dm, for (i = 0; i < num_pages; i++) { pg = pfn_to_page(i + start_frame); + __ClearPageOffline(pg); __free_page(pg); dm->num_pages_ballooned--; } @@ -1214,7 +1220,7 @@ static unsigned int alloc_balloon_pages(struct hv_dynmem_device *dm, struct dm_balloon_response *bl_resp, int alloc_unit) { - unsigned int i = 0; + unsigned int i, j; struct page *pg; if (num_pages < alloc_unit) @@ -1246,6 +1252,10 @@ static unsigned int alloc_balloon_pages(struct hv_dynmem_device *dm, if (alloc_unit != 1) split_page(pg, get_order(alloc_unit << PAGE_SHIFT)); + /* mark all pages offline */ + for (j = 0; j < (1 << get_order(alloc_unit << PAGE_SHIFT)); j++) + __SetPageOffline(pg + j); + bl_resp->range_count++; bl_resp->range_array[i].finfo.start_page = page_to_pfn(pg); |