Notify sysfs about changes of a nvme controller so user-space can watch the file via poll() or select() in order to react to a state change.
Signed-off-by: Johannes Thumshirn <[email protected]> --- drivers/nvme/host/core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index acc816b67582..064d973f1e22 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -237,8 +237,10 @@ bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl, break; } - if (changed) + if (changed) { ctrl->state = new_state; + sysfs_notify(&ctrl->dev->kobj, NULL, "state"); + } spin_unlock_irqrestore(&ctrl->lock, flags); -- 2.13.5
