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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6514 | serge | 1 | #ifndef _LINUX_SWAP_H |
| 2 | #define _LINUX_SWAP_H |
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| 3 | |||
| 4 | #include |
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| 5 | |||
| 6 | struct notifier_block; |
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| 7 | |||
| 8 | struct bio; |
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| 9 | |||
| 10 | #define SWAP_FLAG_PREFER 0x8000 /* set if swap priority specified */ |
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| 11 | #define SWAP_FLAG_PRIO_MASK 0x7fff |
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| 12 | #define SWAP_FLAG_PRIO_SHIFT 0 |
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| 13 | #define SWAP_FLAG_DISCARD 0x10000 /* enable discard for swap */ |
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| 14 | #define SWAP_FLAG_DISCARD_ONCE 0x20000 /* discard swap area at swapon-time */ |
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| 15 | #define SWAP_FLAG_DISCARD_PAGES 0x40000 /* discard page-clusters after use */ |
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| 16 | |||
| 17 | #define SWAP_FLAGS_VALID (SWAP_FLAG_PRIO_MASK | SWAP_FLAG_PREFER | \ |
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| 18 | SWAP_FLAG_DISCARD | SWAP_FLAG_DISCARD_ONCE | \ |
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| 19 | SWAP_FLAG_DISCARD_PAGES) |
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| 20 | |||
| 21 | |||
| 22 | #endif /* _LINUX_SWAP_H */ |