diff options
Diffstat (limited to 'include/linux/iomap.h')
| -rw-r--r-- | include/linux/iomap.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/iomap.h b/include/linux/iomap.h index 3267df461012..e63e288dee83 100644 --- a/include/linux/iomap.h +++ b/include/linux/iomap.h @@ -19,6 +19,13 @@ struct vm_fault; #define IOMAP_UNWRITTEN 0x04 /* blocks allocated @blkno in unwritten state */ /* + * Flags for iomap mappings: + */ +#define IOMAP_F_MERGED 0x01 /* contains multiple blocks/extents */ +#define IOMAP_F_SHARED 0x02 /* block shared with another file */ +#define IOMAP_F_NEW 0x04 /* blocks have been newly allocated */ + +/* * Magic value for blkno: */ #define IOMAP_NULL_BLOCK -1LL /* blkno is not valid */ @@ -27,7 +34,8 @@ struct iomap { sector_t blkno; /* 1st sector of mapping, 512b units */ loff_t offset; /* file offset of mapping, bytes */ u64 length; /* length of mapping, bytes */ - int type; /* type of mapping */ + u16 type; /* type of mapping */ + u16 flags; /* flags for mapping */ struct block_device *bdev; /* block device for I/O */ }; @@ -58,6 +66,8 @@ struct iomap_ops { ssize_t iomap_file_buffered_write(struct kiocb *iocb, struct iov_iter *from, struct iomap_ops *ops); +int iomap_file_dirty(struct inode *inode, loff_t pos, loff_t len, + struct iomap_ops *ops); int iomap_zero_range(struct inode *inode, loff_t pos, loff_t len, bool *did_zero, struct iomap_ops *ops); int iomap_truncate_page(struct inode *inode, loff_t pos, bool *did_zero, |