From 199a31c6d93ba9dc6f831fa1e77d9926f34f4e8a Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 21 Jun 2016 09:22:39 +1000 Subject: fs: move struct iomap from exportfs.h to a separate header Signed-off-by: Christoph Hellwig Reviewed-by: Bob Peterson Signed-off-by: Dave Chinner --- include/linux/iomap.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 include/linux/iomap.h (limited to 'include/linux/iomap.h') diff --git a/include/linux/iomap.h b/include/linux/iomap.h new file mode 100644 index 000000000000..1b22197bcf01 --- /dev/null +++ b/include/linux/iomap.h @@ -0,0 +1,21 @@ +#ifndef LINUX_IOMAP_H +#define LINUX_IOMAP_H 1 + +#include + +/* 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 */ -- cgit v1.2.3-59-g8ed1b