Commit eb81cf9d authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Darrick J. Wong
Browse files

iomap: renumber IOMAP_HOLE to 0 



Instead of keeping a separate unnamed state for uninitialized iomaps,
renumber IOMAP_HOLE to zero so that an uninitialized iomap is treated
as a hole.

Suggested-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
parent 32a38a49

include/linux/iomap.h

+5 −5
Original line number Diff line number Diff line
@@ -23,11 +23,11 @@ struct vm_fault; 
/*

 * Types of block ranges for iomap mappings:

 */

#define IOMAP_HOLE	0x01	/* no blocks allocated, need allocation */

#define IOMAP_DELALLOC	0x02	/* delayed allocation blocks */

#define IOMAP_MAPPED	0x03	/* blocks allocated at @addr */

#define IOMAP_UNWRITTEN	0x04	/* blocks allocated at @addr in unwritten state */

#define IOMAP_INLINE	0x05	/* data inline in the inode */

#define IOMAP_HOLE	0	/* no blocks allocated, need allocation */

#define IOMAP_DELALLOC	1	/* delayed allocation blocks */

#define IOMAP_MAPPED	2	/* blocks allocated at @addr */

#define IOMAP_UNWRITTEN	3	/* blocks allocated at @addr in unwritten state */

#define IOMAP_INLINE	4	/* data inline in the inode */



/*

 * Flags reported by the file system from iomap_begin:

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