On 3/29/21 5:26 PM, Ming Lei wrote:
From: Jeffle Xu <jefflexu@xxxxxxxxxxxxxxxxx> IO polling is enabled when all underlying target devices are capable of IO polling. The sanity check supports the stacked device model, in which one dm device may be build upon another dm device. In this case, the mapped device will check if the underlying dm target device supports IO polling. Reviewed-by: Mike Snitzer <snitzer@xxxxxxxxxx> Signed-off-by: Jeffle Xu <jefflexu@xxxxxxxxxxxxxxxxx> Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx> --- drivers/md/dm-table.c | 24 ++++++++++++++++++++++++ drivers/md/dm.c | 14 ++++++++++++++ include/linux/device-mapper.h | 1 + 3 files changed, 39 insertions(+)
Reviewed-by: Hannes Reinecke <hare@xxxxxxx> Cheers, Hannes -- Dr. Hannes Reinecke Kernel Storage Architect hare@xxxxxxx +49 911 74053 688 SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg HRB 36809 (AG Nürnberg), Geschäftsführer: Felix Imendörffer
