diff options
Diffstat (limited to 'drivers/hv')
| -rw-r--r-- | drivers/hv/hv_balloon.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c index 32a96f164dc..f8fc99600de 100644 --- a/drivers/hv/hv_balloon.c +++ b/drivers/hv/hv_balloon.c @@ -414,10 +414,17 @@ struct dm_info_msg { static bool hot_add; static bool do_hot_add; +/* + * Delay reporting memory pressure by + * the specified number of seconds. + */ +static uint pressure_report_delay = 30; module_param(hot_add, bool, (S_IRUGO | S_IWUSR)); MODULE_PARM_DESC(hot_add, "If set attempt memory hot_add"); +module_param(pressure_report_delay, uint, (S_IRUGO | S_IWUSR)); +MODULE_PARM_DESC(pressure_report_delay, "Delay in secs in reporting pressure"); static atomic_t trans_id = ATOMIC_INIT(0); static int dm_ring_size = (5 * PAGE_SIZE); @@ -531,6 +538,10 @@ static void post_status(struct hv_dynmem_device *dm) struct dm_status status; struct sysinfo val; + if (pressure_report_delay > 0) { + --pressure_report_delay; + return; + } si_meminfo(&val); memset(&status, 0, sizeof(struct dm_status)); status.hdr.type = DM_STATUS_REPORT; @@ -552,8 +563,6 @@ static void post_status(struct hv_dynmem_device *dm) } - - static void free_balloon_pages(struct hv_dynmem_device *dm, union dm_mem_page_range *range_array) { |