diff options
Diffstat (limited to 'fs/xfs/xfs_types.h')
| -rw-r--r-- | fs/xfs/xfs_types.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/xfs/xfs_types.h b/fs/xfs/xfs_types.h index 398cf681d025..7a41874f4c20 100644 --- a/fs/xfs/xfs_types.h +++ b/fs/xfs/xfs_types.h @@ -133,6 +133,20 @@ typedef __uint64_t xfs_filblks_t; /* number of blocks in a file */ #define MAXAEXTNUM ((xfs_aextnum_t)0x7fff) /* signed short */ /* + * Minimum and maximum blocksize and sectorsize. + * The blocksize upper limit is pretty much arbitrary. + * The sectorsize upper limit is due to sizeof(sb_sectsize). + */ +#define XFS_MIN_BLOCKSIZE_LOG 9 /* i.e. 512 bytes */ +#define XFS_MAX_BLOCKSIZE_LOG 16 /* i.e. 65536 bytes */ +#define XFS_MIN_BLOCKSIZE (1 << XFS_MIN_BLOCKSIZE_LOG) +#define XFS_MAX_BLOCKSIZE (1 << XFS_MAX_BLOCKSIZE_LOG) +#define XFS_MIN_SECTORSIZE_LOG 9 /* i.e. 512 bytes */ +#define XFS_MAX_SECTORSIZE_LOG 15 /* i.e. 32768 bytes */ +#define XFS_MIN_SECTORSIZE (1 << XFS_MIN_SECTORSIZE_LOG) +#define XFS_MAX_SECTORSIZE (1 << XFS_MAX_SECTORSIZE_LOG) + +/* * Min numbers of data/attr fork btree root pointers. */ #define MINDBTPTRS 3 |