diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/include/lustre/ll_fiemap.h')
| -rw-r--r-- | drivers/staging/lustre/lustre/include/lustre/ll_fiemap.h | 75 |
1 files changed, 10 insertions, 65 deletions
diff --git a/drivers/staging/lustre/lustre/include/lustre/ll_fiemap.h b/drivers/staging/lustre/lustre/include/lustre/ll_fiemap.h index c2340d6..b8ad555 100644 --- a/drivers/staging/lustre/lustre/include/lustre/ll_fiemap.h +++ b/drivers/staging/lustre/lustre/include/lustre/ll_fiemap.h @@ -41,79 +41,24 @@ #ifndef _LUSTRE_FIEMAP_H #define _LUSTRE_FIEMAP_H -struct ll_fiemap_extent { - __u64 fe_logical; /* logical offset in bytes for the start of - * the extent from the beginning of the file - */ - __u64 fe_physical; /* physical offset in bytes for the start - * of the extent from the beginning of the disk - */ - __u64 fe_length; /* length in bytes for this extent */ - __u64 fe_reserved64[2]; - __u32 fe_flags; /* FIEMAP_EXTENT_* flags for this extent */ - __u32 fe_device; /* device number for this extent */ - __u32 fe_reserved[2]; -}; - -struct ll_user_fiemap { - __u64 fm_start; /* logical offset (inclusive) at - * which to start mapping (in) - */ - __u64 fm_length; /* logical length of mapping which - * userspace wants (in) - */ - __u32 fm_flags; /* FIEMAP_FLAG_* flags for request (in/out) */ - __u32 fm_mapped_extents;/* number of extents that were mapped (out) */ - __u32 fm_extent_count; /* size of fm_extents array (in) */ - __u32 fm_reserved; - struct ll_fiemap_extent fm_extents[0]; /* array of mapped extents (out) */ -}; - -#define FIEMAP_MAX_OFFSET (~0ULL) +#ifndef __KERNEL__ +#include <stddef.h> +#include <fiemap.h> +#endif -#define FIEMAP_FLAG_SYNC 0x00000001 /* sync file data before - * map - */ -#define FIEMAP_FLAG_XATTR 0x00000002 /* map extended attribute - * tree - */ -#define FIEMAP_EXTENT_LAST 0x00000001 /* Last extent in file. */ -#define FIEMAP_EXTENT_UNKNOWN 0x00000002 /* Data location unknown. */ -#define FIEMAP_EXTENT_DELALLOC 0x00000004 /* Location still pending. - * Sets EXTENT_UNKNOWN. - */ -#define FIEMAP_EXTENT_ENCODED 0x00000008 /* Data can not be read - * while fs is unmounted - */ -#define FIEMAP_EXTENT_DATA_ENCRYPTED 0x00000080 /* Data is encrypted by fs. - * Sets EXTENT_NO_DIRECT. - */ -#define FIEMAP_EXTENT_NOT_ALIGNED 0x00000100 /* Extent offsets may not be - * block aligned. - */ -#define FIEMAP_EXTENT_DATA_INLINE 0x00000200 /* Data mixed with metadata. - * Sets EXTENT_NOT_ALIGNED.*/ -#define FIEMAP_EXTENT_DATA_TAIL 0x00000400 /* Multiple files in block. - * Sets EXTENT_NOT_ALIGNED. - */ -#define FIEMAP_EXTENT_UNWRITTEN 0x00000800 /* Space allocated, but - * no data (i.e. zero). - */ -#define FIEMAP_EXTENT_MERGED 0x00001000 /* File does not natively - * support extents. Result - * merged for efficiency. - */ +/* XXX: We use fiemap_extent::fe_reserved[0] */ +#define fe_device fe_reserved[0] static inline size_t fiemap_count_to_size(size_t extent_count) { - return (sizeof(struct ll_user_fiemap) + extent_count * - sizeof(struct ll_fiemap_extent)); + return sizeof(struct fiemap) + extent_count * + sizeof(struct fiemap_extent); } static inline unsigned fiemap_size_to_count(size_t array_size) { - return ((array_size - sizeof(struct ll_user_fiemap)) / - sizeof(struct ll_fiemap_extent)); + return (array_size - sizeof(struct fiemap)) / + sizeof(struct fiemap_extent); } #define FIEMAP_FLAG_DEVICE_ORDER 0x40000000 /* return device ordered mapping */ |
