diff options
| -rw-r--r-- | drivers/misc/vmw_balloon.c | 52 |
1 files changed, 29 insertions, 23 deletions
diff --git a/drivers/misc/vmw_balloon.c b/drivers/misc/vmw_balloon.c index 96dde120bbd5..4e067d269706 100644 --- a/drivers/misc/vmw_balloon.c +++ b/drivers/misc/vmw_balloon.c @@ -543,29 +543,13 @@ static int vmballoon_lock(struct vmballoon *b, unsigned int num_pages, /* Error occurred */ STATS_INC(b->stats.refused_alloc[is_2m_pages]); - switch (status) { - case VMW_BALLOON_ERROR_PPN_PINNED: - case VMW_BALLOON_ERROR_PPN_INVALID: - /* - * Place page on the list of non-balloonable pages - * and retry allocation, unless we already accumulated - * too many of them, in which case take a breather. - */ - if (page_size->n_refused_pages - < VMW_BALLOON_MAX_REFUSED) { - list_add(&p->lru, &page_size->refused_pages); - page_size->n_refused_pages++; - break; - } - /* Fallthrough */ - case VMW_BALLOON_ERROR_RESET: - case VMW_BALLOON_ERROR_PPN_NOTNEEDED: - vmballoon_free_page(p, is_2m_pages); - break; - default: - /* This should never happen */ - WARN_ON_ONCE(true); - } + /* + * Place page on the list of non-balloonable pages + * and retry allocation, unless we already accumulated + * too many of them, in which case take a breather. + */ + list_add(&p->lru, &page_size->refused_pages); + page_size->n_refused_pages++; } return batch_status == VMW_BALLOON_SUCCESS ? 0 : -EIO; @@ -712,9 +696,31 @@ static void vmballoon_inflate(struct vmballoon *b) vmballoon_add_page(b, num_pages++, page); if (num_pages == b->batch_max_pages) { + struct vmballoon_page_size *page_size = + &b->page_sizes[is_2m_pages]; + error = vmballoon_lock(b, num_pages, is_2m_pages); num_pages = 0; + + /* + * Stop allocating this page size if we already + * accumulated too many pages that the hypervisor + * refused. + */ + if (page_size->n_refused_pages >= + VMW_BALLOON_MAX_REFUSED) { + if (!is_2m_pages) + break; + + /* + * Release the refused pages as we move to 4k + * pages. + */ + vmballoon_release_refused_pages(b, true); + is_2m_pages = true; + } + if (error) break; } |