@@ -67,6 +67,10 @@ static int nvme_activate_iopolicy(struct nvme_subsystem *subsys, int iopolicy)
}
}
mutex_unlock(&subsys->lock);
+
+ pr_notice("%s: %s enable %d status %d for subsysnqn %s\n", __func__,
+ nvme_iopolicy_names[iopolicy], enable, ret, subsys->subnqn);
+
return ret;
}
@@ -890,6 +894,8 @@ void nvme_subsys_iopolicy_update(struct nvme_subsystem *subsys, int iopolicy)
{
struct nvme_ctrl *ctrl;
+ int old_iopolicy = READ_ONCE(subsys->iopolicy);
+
WRITE_ONCE(subsys->iopolicy, iopolicy);
mutex_lock(&nvme_subsystems_lock);
@@ -898,6 +904,10 @@ void nvme_subsys_iopolicy_update(struct nvme_subsystem *subsys, int iopolicy)
nvme_mpath_clear_ctrl_paths(ctrl);
}
mutex_unlock(&nvme_subsystems_lock);
+
+ pr_notice("%s: changed from %s to %s for subsysnqn %s\n", __func__,
+ nvme_iopolicy_names[old_iopolicy], nvme_iopolicy_names[iopolicy],
+ subsys->subnqn);
}
static ssize_t nvme_subsys_iopolicy_store(struct device *dev,
Send a pr_notice when ever the iopolicy on a subsystem is changed. This is important for support reasons. It is fully expected that users will be changing the iopolicy with active IO in progress. Signed-off-by: John Meneghini <jmeneghi@redhat.com> --- drivers/nvme/host/multipath.c | 10 ++++++++++ 1 file changed, 10 insertions(+)