| 0,0 → 1,22 |
|---|
| #ifndef _LINUX_SWAP_H |
| #define _LINUX_SWAP_H |
| |
| #include <linux/spinlock.h> |
| |
| struct notifier_block; |
| |
| struct bio; |
| |
| #define SWAP_FLAG_PREFER 0x8000 /* set if swap priority specified */ |
| #define SWAP_FLAG_PRIO_MASK 0x7fff |
| #define SWAP_FLAG_PRIO_SHIFT 0 |
| #define SWAP_FLAG_DISCARD 0x10000 /* enable discard for swap */ |
| #define SWAP_FLAG_DISCARD_ONCE 0x20000 /* discard swap area at swapon-time */ |
| #define SWAP_FLAG_DISCARD_PAGES 0x40000 /* discard page-clusters after use */ |
| |
| #define SWAP_FLAGS_VALID (SWAP_FLAG_PRIO_MASK | SWAP_FLAG_PREFER | \ |
| SWAP_FLAG_DISCARD | SWAP_FLAG_DISCARD_ONCE | \ |
| SWAP_FLAG_DISCARD_PAGES) |
| |
| |
| #endif /* _LINUX_SWAP_H */ |