Messages in this thread Patch in this message | | | From | Andi Kleen <> | Subject | [PATCH] [7/12] SYSDEV: Use sysdev_class attribute arrays in node driver | Date | Tue, 5 Jan 2010 12:48:04 +0100 (CET) |
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Convert the node driver to sysdev_class attribute arrays. This greatly cleans up the code and remove a lot of code.
Saves ~150 bytes of code on x86-64.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
--- drivers/base/node.c | 31 ++++++++++++++++--------------- 1 file changed, 16 insertions(+), 15 deletions(-)
Index: linux-2.6.33-rc2-ak/drivers/base/node.c =================================================================== --- linux-2.6.33-rc2-ak.orig/drivers/base/node.c +++ linux-2.6.33-rc2-ak/drivers/base/node.c @@ -16,8 +16,11 @@ #include <linux/device.h> #include <linux/swap.h> +static struct sysdev_class_attribute *node_state_attrs[]; + static struct sysdev_class node_class = { .name = "node", + .attrs = node_state_attrs, }; @@ -569,29 +572,27 @@ static struct node_attr node_state_attr[ #endif }; -static int node_states_init(void) -{ - int i; - int err = 0; - - BUILD_BUG_ON(ARRAY_SIZE(node_state_attr) != NR_NODE_STATES); - for (i = 0; i < NR_NODE_STATES; i++) { - int ret; - ret = sysdev_class_create_file(&node_class, &node_state_attr[i].attr); - if (!err) - err = ret; - } - return err; -} +static struct sysdev_class_attribute *node_state_attrs[] = { + &node_state_attr[0].attr, + &node_state_attr[1].attr, + &node_state_attr[2].attr, + &node_state_attr[3].attr, +#ifdef CONFIG_HIGHMEM + &node_state_attr[4].attr, +#endif + NULL +}; #define NODE_CALLBACK_PRI 2 /* lower than SLAB */ static int __init register_node_type(void) { int ret; + BUILD_BUG_ON(ARRAY_SIZE(node_state_attr) != NR_NODE_STATES); + BUILD_BUG_ON(ARRAY_SIZE(node_state_attrs)-1 != NR_NODE_STATES); + ret = sysdev_class_register(&node_class); if (!ret) { - ret = node_states_init(); hotplug_memory_notifier(node_memory_callback, NODE_CALLBACK_PRI); }
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