diff options
author | Christoph Hellwig <hch@infradead.org> | 2010-04-28 08:28:56 -0400 |
---|---|---|
committer | Alex Elder <aelder@sgi.com> | 2010-05-19 10:58:17 -0400 |
commit | 207d041602cead1c1a16288f6225aea9da1f5bc4 (patch) | |
tree | ad6149735c8bc0c5d112e301e6e17dac6280dcb6 /fs/xfs/xfs_iomap.h | |
parent | e513182d4d7ec8f1870ae368c549ef2838e2c105 (diff) |
xfs: kill struct xfs_iomap
Now that struct xfs_iomap contains exactly the same units as struct
xfs_bmbt_irec we can just use the latter directly in the aops code.
Replace the missing IOMAP_NEW flag with a new boolean output
parameter to xfs_iomap.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_iomap.h')
-rw-r--r-- | fs/xfs/xfs_iomap.h | 26 |
1 files changed, 1 insertions, 25 deletions
diff --git a/fs/xfs/xfs_iomap.h b/fs/xfs/xfs_iomap.h index d2f3b67d39f9..ba49a4fd1b3f 100644 --- a/fs/xfs/xfs_iomap.h +++ b/fs/xfs/xfs_iomap.h | |||
@@ -47,35 +47,11 @@ typedef enum { | |||
47 | { BMAPI_MMAP, "MMAP" }, \ | 47 | { BMAPI_MMAP, "MMAP" }, \ |
48 | { BMAPI_TRYLOCK, "TRYLOCK" } | 48 | { BMAPI_TRYLOCK, "TRYLOCK" } |
49 | 49 | ||
50 | /* | ||
51 | * xfs_iomap_t: File system I/O map | ||
52 | * | ||
53 | * The iomap_bn field is expressed in 512-byte blocks, and is where the | ||
54 | * mapping starts on disk. | ||
55 | * | ||
56 | * The iomap_offset, iomap_bsize and iomap_delta fields are in bytes. | ||
57 | * iomap_offset is the offset of the mapping in the file itself. | ||
58 | * iomap_bsize is the size of the mapping, iomap_delta is the | ||
59 | * desired data's offset into the mapping, given the offset supplied | ||
60 | * to the file I/O map routine. | ||
61 | * | ||
62 | * When a request is made to read beyond the logical end of the object, | ||
63 | * iomap_size may be set to 0, but iomap_offset and iomap_length should be set | ||
64 | * to the actual amount of underlying storage that has been allocated, if any. | ||
65 | */ | ||
66 | |||
67 | typedef struct xfs_iomap { | ||
68 | xfs_daddr_t iomap_bn; /* first 512B blk of mapping */ | ||
69 | xfs_off_t iomap_offset; /* offset of mapping, bytes */ | ||
70 | xfs_off_t iomap_bsize; /* size of mapping, bytes */ | ||
71 | iomap_flags_t iomap_flags; | ||
72 | } xfs_iomap_t; | ||
73 | |||
74 | struct xfs_inode; | 50 | struct xfs_inode; |
75 | struct xfs_bmbt_irec; | 51 | struct xfs_bmbt_irec; |
76 | 52 | ||
77 | extern int xfs_iomap(struct xfs_inode *, xfs_off_t, ssize_t, int, | 53 | extern int xfs_iomap(struct xfs_inode *, xfs_off_t, ssize_t, int, |
78 | struct xfs_iomap *, int *); | 54 | struct xfs_bmbt_irec *, int *, int *); |
79 | extern int xfs_iomap_write_direct(struct xfs_inode *, xfs_off_t, size_t, | 55 | extern int xfs_iomap_write_direct(struct xfs_inode *, xfs_off_t, size_t, |
80 | int, struct xfs_bmbt_irec *, int *, int); | 56 | int, struct xfs_bmbt_irec *, int *, int); |
81 | extern int xfs_iomap_write_delay(struct xfs_inode *, xfs_off_t, size_t, int, | 57 | extern int xfs_iomap_write_delay(struct xfs_inode *, xfs_off_t, size_t, int, |