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| author |   Christoph Hellwig <hch@lst.de> | 2016-06-21 09:22:39 +1000 |
|---|---|---|
| committer |   Dave Chinner <david@fromorbit.com> | 2016-06-21 09:22:39 +1000 |
| commit | 199a31c6d93ba9dc6f831fa1e77d9926f34f4e8a (patch) | |
| tree | 012149fab5fc79d6f015f07f911bac174e48964b /include/linux/iomap.h | |
| parent | Linux 4.7-rc1 (diff) | |
| download | linux-dev-199a31c6d93ba9dc6f831fa1e77d9926f34f4e8a.tar.xz linux-dev-199a31c6d93ba9dc6f831fa1e77d9926f34f4e8a.zip | |
fs: move struct iomap from exportfs.h to a separate header
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'include/linux/iomap.h')
| -rw-r--r-- | include/linux/iomap.h | 21 |
1 files changed, 21 insertions, 0 deletions
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 <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 */ |