http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/linux/memory.h

/* * include/linux/memory.h - generic memory definition * * This is mainly for topological representation. We define the * basic "struct memory_block" here, which can be embedded in per-arch * definitions or NUMA information. * * Basic handling of the devices is done in drivers/base/memory.c * and system devices are handled in drivers/base/sys.c. * * Memory block are exported via sysfs in the class/memory/devices/ * directory. * */ #ifndef _LINUX_MEMORY_H_ #define _LINUX_MEMORY_H_ #include <linux/sysdev.h> #include <linux/node.h> #include <linux/compiler.h> #include <asm/semaphore.h> struct memory_block { unsigned long phys_index; unsigned long state; /* * This serializes all state change requests. It isn't * held during creation because the control files are * created long after the critical areas during * initialization. */ struct semaphore state_sem; int phys_device; /* to which fru does this belong? */ void *hw; /* optional pointer to fw/hw data */ int (*phys_callback)(struct memory_block *); struct sys_device sysdev; }; /* These states are exposed to userspace as text strings in sysfs */ #define MEM_ONLINE (1<<0) /* exposed to userspace */ #define MEM_GOING_OFFLINE (1<<1) /* exposed to userspace */ #define MEM_OFFLINE (1<<2) /* exposed to userspace */ /* * All of these states are currently kernel-internal for notifying * kernel components and architectures. * * For MEM_MAPPING_INVALID, all notifier chains with priority >0 * are called before pfn_to_page() becomes invalid. The priority=0 * entry is reserved for the function that actually makes * pfn_to_page() stop working. Any notifiers that want to be called * after that should have priority <0. */ #define MEM_MAPPING_INVALID (1<<3) struct notifier_block; struct mem_section; #ifndef CONFIG_MEMORY_HOTPLUG static inline int memory_dev_init(void) { return 0; } static inline int register_memory_notifier(struct notifier_block *nb) { return 0; } static inline void unregister_memory_notifier(struct notifier_block *nb) { } #else extern int register_new_memory(struct mem_section *); extern int unregister_memory_section(struct mem_section *); extern int memory_dev_init(void); extern int remove_memory_block(unsigned long, struct mem_section *, int); #define CONFIG_MEM_BLOCK_SIZE (PAGES_PER_SECTION<<PAGE_SHIFT) struct notifier_block; #endif /* CONFIG_MEMORY_HOTPLUG */ #define hotplug_memory_notifier(fn, pri) { \ static struct notifier_block fn##_mem_nb = \ { .notifier_call = fn, .priority = pri }; \ register_memory_notifier(&fn##_mem_nb); \ } #endif /* _LINUX_MEMORY_H_ */