userlandfs/legacy/cache.h

13 #ifndef _IMPEXP_KERNEL
14 #define _IMPEXP_KERNEL
89 extern _IMPEXP_KERNEL int   init_block_cache(int max_blocks, int flags);
90 extern _IMPEXP_KERNEL void  shutdown_block_cache(void);
92 extern _IMPEXP_KERNEL void  force_cache_flush(int dev, int prefer_log_blocks);
93 extern _IMPEXP_KERNEL int   flush_blocks(int dev, off_t bnum, int nblocks);
94 extern _IMPEXP_KERNEL int   flush_device(int dev, int warn_locked);
96 extern _IMPEXP_KERNEL int   init_cache_for_device(int fd, off_t max_blocks);
97 extern _IMPEXP_KERNEL int   remove_cached_device_blocks(int dev, int allow_write);
99 extern _IMPEXP_KERNEL void *get_block(int dev, off_t bnum, int bsize);
100 extern _IMPEXP_KERNEL void *get_empty_block(int dev, off_t bnum, int bsize);
101 extern _IMPEXP_KERNEL int   release_block(int dev, off_t bnum);
102 extern _IMPEXP_KERNEL int   mark_blocks_dirty(int dev, off_t bnum, int nblocks);
105 extern _IMPEXP_KERNEL int  cached_read(int dev, off_t bnum, void *data, off_t num_blocks, int bsize);
106 extern _IMPEXP_KERNEL int  cached_write(int dev, off_t bnum, const void *data,
108 extern _IMPEXP_KERNEL int  cached_write_locked(int dev, off_t bnum, const void *data,
110 extern _IMPEXP_KERNEL int  set_blocks_info(int dev, off_t *blocks, int nblocks,
115 extern _IMPEXP_KERNEL size_t read_phys_blocks (int fd, off_t bnum, void *data, uint num_blocks, int bsize);
116 extern _IMPEXP_KERNEL size_t write_phys_blocks(int fd, off_t bnum, void *data, uint num_blocks, int bsize);