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@@ -1316,6 +1316,7 @@ static void nodemgr_node_scan(struct host_info *hi, int generation)
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}
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+/* Caller needs to hold nodemgr_ud_class.subsys.rwsem as reader. */
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static void nodemgr_suspend_ne(struct node_entry *ne)
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{
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struct class_device *cdev;
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@@ -1368,15 +1369,14 @@ static void nodemgr_resume_ne(struct node_entry *ne)
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}
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+/* Caller needs to hold nodemgr_ud_class.subsys.rwsem as reader. */
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static void nodemgr_update_pdrv(struct node_entry *ne)
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{
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struct unit_directory *ud;
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struct hpsb_protocol_driver *pdrv;
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- struct class *class = &nodemgr_ud_class;
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struct class_device *cdev;
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- down_read(&class->subsys.rwsem);
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- list_for_each_entry(cdev, &class->children, node) {
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+ list_for_each_entry(cdev, &nodemgr_ud_class.children, node) {
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ud = container_of(cdev, struct unit_directory, class_dev);
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if (ud->ne != ne || !ud->device.driver)
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continue;
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@@ -1389,7 +1389,6 @@ static void nodemgr_update_pdrv(struct node_entry *ne)
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up_write(&ud->device.bus->subsys.rwsem);
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}
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}
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- up_read(&class->subsys.rwsem);
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}
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@@ -1420,6 +1419,8 @@ static void nodemgr_irm_write_bc(struct node_entry *ne, int generation)
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}
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+/* Caller needs to hold nodemgr_ud_class.subsys.rwsem as reader because the
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+ * calls to nodemgr_update_pdrv() and nodemgr_suspend_ne() here require it. */
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static void nodemgr_probe_ne(struct host_info *hi, struct node_entry *ne, int generation)
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{
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struct device *dev;
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