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

#ifndef __LINUX_MEMORY_HOTPLUG_H #define __LINUX_MEMORY_HOTPLUG_H #include <linux/mmzone.h> #include <linux/spinlock.h> #include <linux/mmzone.h> #include <linux/notifier.h> struct page; struct zone; struct pglist_data; #ifdef CONFIG_MEMORY_HOTPLUG /* * pgdat resizing functions */ static inline void pgdat_resize_lock(struct pglist_data *pgdat, unsigned long *flags) { spin_lock_irqsave(&pgdat->node_size_lock, *flags); } static inline void pgdat_resize_unlock(struct pglist_data *pgdat, unsigned long *flags) { spin_unlock_irqrestore(&pgdat->node_size_lock, *flags); } static inline void pgdat_resize_init(struct pglist_data *pgdat) { spin_lock_init(&pgdat->node_size_lock); } /* * Zone resizing functions */ static inline unsigned zone_span_seqbegin(struct zone *zone) { return read_seqbegin(&zone->span_seqlock); } static inline int zone_span_seqretry(struct zone *zone, unsigned iv) { return read_seqretry(&zone->span_seqlock, iv); } static inline void zone_span_writelock(struct zone *zone) { write_seqlock(&zone->span_seqlock); } static inline void zone_span_writeunlock(struct zone *zone) { write_sequnlock(&zone->span_seqlock); } static inline void zone_seqlock_init(struct zone *zone) { seqlock_init(&zone->span_seqlock); } extern int zone_grow_free_lists(struct zone *zone, unsigned long new_nr_pages); extern int zone_grow_waitqueues(struct zone *zone, unsigned long nr_pages); extern int add_one_highpage(struct page *page, int pfn, int bad_ppro); /* need some defines for these for archs that don't support it */ extern void online_page(struct page *page); /* VM interface that may be used by firmware interface */ extern int add_memory(u64 start, u64 size); extern int remove_memory(u64 start, u64 size); extern int online_pages(unsigned long, unsigned long); /* reasonably generic interface to expand the physical pages in a zone */ extern int __add_pages(struct zone *zone, unsigned long start_pfn, unsigned long nr_pages); #else /* ! CONFIG_MEMORY_HOTPLUG */ /* * Stub functions for when hotplug is off */ static inline void pgdat_resize_lock(struct pglist_data *p, unsigned long *f) {} static inline void pgdat_resize_unlock(struct pglist_data *p, unsigned long *f) {} static inline void pgdat_resize_init(struct pglist_data *pgdat) {} static inline unsigned zone_span_seqbegin(struct zone *zone) { return 0; } static inline int zone_span_seqretry(struct zone *zone, unsigned iv) { return 0; } static inline void zone_span_writelock(struct zone *zone) {} static inline void zone_span_writeunlock(struct zone *zone) {} static inline void zone_seqlock_init(struct zone *zone) {} static inline int mhp_notimplemented(const char *func) { printk(KERN_WARNING "%s() called, with CONFIG_MEMORY_HOTPLUG disabled\n", func); dump_stack(); return -ENOSYS; } static inline int __add_pages(struct zone *zone, unsigned long start_pfn, unsigned long nr_pages) { return mhp_notimplemented(__FUNCTION__); } #endif /* ! CONFIG_MEMORY_HOTPLUG */ static inline int __remove_pages(struct zone *zone, unsigned long start_pfn, unsigned long nr_pages) { printk(KERN_WARNING "%s() called, not yet supported\n", __FUNCTION__); dump_stack(); return -ENOSYS; } #endif /* __LINUX_MEMORY_HOTPLUG_H */