From: Yasuaki Ishimatsu <[email protected]> When calling unregister_node(), the function shows following message at device_release().
Device 'node2' does not have a release() function, it is broken and must be fixed. So the patch implements node_device_release() CC: David Rientjes <[email protected]> CC: Jiang Liu <[email protected]> CC: Len Brown <[email protected]> CC: Benjamin Herrenschmidt <[email protected]> CC: Paul Mackerras <[email protected]> CC: Christoph Lameter <[email protected]> Cc: Minchan Kim <[email protected]> CC: Andrew Morton <[email protected]> CC: KOSAKI Motohiro <[email protected]> Signed-off-by: Yasuaki Ishimatsu <[email protected]> Signed-off-by: Wen Congyang <[email protected]> --- drivers/base/node.c | 11 +++++++++++ 1 files changed, 11 insertions(+), 0 deletions(-) diff --git a/drivers/base/node.c b/drivers/base/node.c index af1a177..07523fb 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -252,6 +252,16 @@ static inline void hugetlb_register_node(struct node *node) {} static inline void hugetlb_unregister_node(struct node *node) {} #endif +static void node_device_release(struct device *dev) +{ + struct node *node_dev = to_node(dev); + +#if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HUGETLBFS) + flush_work(&node_dev->node_work); +#endif + + memset(node_dev, 0, sizeof(struct node)); +} /* * register_node - Setup a sysfs device for a node. @@ -265,6 +275,7 @@ int register_node(struct node *node, int num, struct node *parent) node->dev.id = num; node->dev.bus = &node_subsys; + node->dev.release = node_device_release; error = device_register(&node->dev); if (!error){ -- 1.7.1 _______________________________________________ Linuxppc-dev mailing list [email protected] https://lists.ozlabs.org/listinfo/linuxppc-dev
