From 8500096017e3a1baadbdefe8b84a99117472af46 Mon Sep 17 00:00:00 2001 From: Alex Ng Date: Sun, 6 Nov 2016 13:14:12 -0800 Subject: [PATCH] Drivers: hv: balloon: Fix info request to show max page count Balloon driver was only printing the size of the info blob and not the actual content. This fixes it so that the info blob (max page count as configured in Hyper-V) is printed out. Signed-off-by: Alex Ng Signed-off-by: K. Y. Srinivasan Signed-off-by: Greg Kroah-Hartman --- drivers/hv/hv_balloon.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c index 8cac29a..14c3dc4b 100644 --- a/drivers/hv/hv_balloon.c +++ b/drivers/hv/hv_balloon.c @@ -1034,8 +1034,13 @@ static void process_info(struct hv_dynmem_device *dm, struct dm_info_msg *msg) switch (info_hdr->type) { case INFO_TYPE_MAX_PAGE_CNT: - pr_info("Received INFO_TYPE_MAX_PAGE_CNT\n"); - pr_info("Data Size is %d\n", info_hdr->data_size); + if (info_hdr->data_size == sizeof(__u64)) { + __u64 *max_page_count = (__u64 *)&info_hdr[1]; + + pr_info("INFO_TYPE_MAX_PAGE_CNT = %llu\n", + *max_page_count); + } + break; default: pr_info("Received Unknown type: %d\n", info_hdr->type); -- 2.7.4