diff options
Diffstat (limited to 'fs/xfs/xfs_format.h')
| -rw-r--r-- | fs/xfs/xfs_format.h | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/fs/xfs/xfs_format.h b/fs/xfs/xfs_format.h index b6ab5a3cfa1..34d85aca305 100644 --- a/fs/xfs/xfs_format.h +++ b/fs/xfs/xfs_format.h @@ -145,6 +145,8 @@ struct xfs_dsymlink_hdr { __be64 sl_lsn; }; +#define XFS_SYMLINK_CRC_OFF offsetof(struct xfs_dsymlink_hdr, sl_crc) + /* * The maximum pathlen is 1024 bytes. Since the minimum file system * blocksize is 512 bytes, we can get a max of 3 extents back from @@ -200,6 +202,8 @@ typedef __be32 xfs_alloc_ptr_t; */ #define XFS_IBT_MAGIC 0x49414254 /* 'IABT' */ #define XFS_IBT_CRC_MAGIC 0x49414233 /* 'IAB3' */ +#define XFS_FIBT_MAGIC 0x46494254 /* 'FIBT' */ +#define XFS_FIBT_CRC_MAGIC 0x46494233 /* 'FIB3' */ typedef __uint64_t xfs_inofree_t; #define XFS_INODES_PER_CHUNK (NBBY * sizeof(xfs_inofree_t)) @@ -242,7 +246,17 @@ typedef __be32 xfs_inobt_ptr_t; * block numbers in the AG. */ #define XFS_IBT_BLOCK(mp) ((xfs_agblock_t)(XFS_CNT_BLOCK(mp) + 1)) -#define XFS_PREALLOC_BLOCKS(mp) ((xfs_agblock_t)(XFS_IBT_BLOCK(mp) + 1)) +#define XFS_FIBT_BLOCK(mp) ((xfs_agblock_t)(XFS_IBT_BLOCK(mp) + 1)) + +/* + * The first data block of an AG depends on whether the filesystem was formatted + * with the finobt feature. If so, account for the finobt reserved root btree + * block. + */ +#define XFS_PREALLOC_BLOCKS(mp) \ + (xfs_sb_version_hasfinobt(&((mp)->m_sb)) ? \ + XFS_FIBT_BLOCK(mp) + 1 : \ + XFS_IBT_BLOCK(mp) + 1) |