#ifndef LINUX_IOMAP_H #define LINUX_IOMAP_H 1 #include <linux/types.h> /* types of block ranges for multipage write mappings. */ #define IOMAP_HOLE 0x01 /* no blocks allocated, need allocation */ #define IOMAP_DELALLOC 0x02 /* delayed allocation blocks */ #define IOMAP_MAPPED 0x03 /* blocks allocated @blkno */ #define IOMAP_UNWRITTEN 0x04 /* blocks allocated @blkno in unwritten state */ #define IOMAP_NULL_BLOCK -1LL /* blkno is not valid */ struct iomap { sector_t blkno; /* first sector of mapping */ loff_t offset; /* file offset of mapping, bytes */ u64 length; /* length of mapping, bytes */ int type; /* type of mapping */ }; #endif /* LINUX_IOMAP_H */
