On 3/29/21 5:26 PM, Ming Lei wrote:
From: Jeffle Xu <[email protected]>
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 <[email protected]>
Signed-off-by: Jeffle Xu <[email protected]>
Signed-off-by: Ming Lei <[email protected]>
---
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 <[email protected]>
Cheers,
Hannes
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