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path: root/drivers/s390/cio/cmf.c
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Diffstat (limited to 'drivers/s390/cio/cmf.c')
-rw-r--r--drivers/s390/cio/cmf.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c
index de7074fc6a2c..b2afad5a5682 100644
--- a/drivers/s390/cio/cmf.c
+++ b/drivers/s390/cio/cmf.c
@@ -1312,6 +1312,19 @@ int cmf_reenable(struct ccw_device *cdev)
return cmbops->set(cdev, 2);
}
+/**
+ * cmf_reactivate() - reactivate measurement block updates
+ *
+ * Use this during resume from hibernate.
+ */
+void cmf_reactivate(void)
+{
+ spin_lock(&cmb_area.lock);
+ if (!list_empty(&cmb_area.list))
+ cmf_activate(cmb_area.mem, 1);
+ spin_unlock(&cmb_area.lock);
+}
+
static int __init init_cmbe(void)
{
cmbe_cache = kmem_cache_create("cmbe_cache", sizeof(struct cmbe),
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