projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 208d54e5 DH |
1 | #ifndef __LINUX_MEMORY_HOTPLUG_H |
| 2 | #define __LINUX_MEMORY_HOTPLUG_H | |
| 3 | ||
| 4 | #include <linux/mmzone.h> | |
| 5 | #include <linux/spinlock.h> | |
| 6 | ||
| 7 | #ifdef CONFIG_MEMORY_HOTPLUG | |
| 8 | /* | |
| 9 | * pgdat resizing functions | |
| 10 | */ | |
| 11 | static inline | |
| 12 | void pgdat_resize_lock(struct pglist_data *pgdat, unsigned long *flags) | |
| 13 | { | |
| 14 | spin_lock_irqsave(&pgdat->node_size_lock, *flags); | |
| 15 | } | |
| 16 | static inline | |
| 17 | void pgdat_resize_unlock(struct pglist_data *pgdat, unsigned long *flags) | |
| 18 | { | |
| 19 | spin_lock_irqrestore(&pgdat->node_size_lock, *flags); | |
| 20 | } | |
| 21 | static inline | |
| 22 | void pgdat_resize_init(struct pglist_data *pgdat) | |
| 23 | { | |
| 24 | spin_lock_init(&pgdat->node_size_lock); | |
| 25 | } | |
| 26 | #else /* ! CONFIG_MEMORY_HOTPLUG */ | |
| 27 | /* | |
| 28 | * Stub functions for when hotplug is off | |
| 29 | */ | |
| 30 | static inline void pgdat_resize_lock(struct pglist_data *p, unsigned long *f) {} | |
| 31 | static inline void pgdat_resize_unlock(struct pglist_data *p, unsigned long *f) {} | |
| 32 | static inline void pgdat_resize_init(struct pglist_data *pgdat) {} | |
| 33 | #endif | |
| 34 | #endif /* __LINUX_MEMORY_HOTPLUG_H */ |