diff options
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/libxfs/xfs_alloc.c | 13 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_format.h | 2 |
2 files changed, 15 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c index 275d345..aa0e1ca 100644 --- a/fs/xfs/libxfs/xfs_alloc.c +++ b/fs/xfs/libxfs/xfs_alloc.c @@ -52,10 +52,23 @@ STATIC int xfs_alloc_ag_vextent_size(xfs_alloc_arg_t *); STATIC int xfs_alloc_ag_vextent_small(xfs_alloc_arg_t *, xfs_btree_cur_t *, xfs_agblock_t *, xfs_extlen_t *, int *); +unsigned int +xfs_refc_block( + struct xfs_mount *mp) +{ + if (xfs_sb_version_hasrmapbt(&mp->m_sb)) + return XFS_RMAP_BLOCK(mp) + 1; + if (xfs_sb_version_hasfinobt(&mp->m_sb)) + return XFS_FIBT_BLOCK(mp) + 1; + return XFS_IBT_BLOCK(mp) + 1; +} + xfs_extlen_t xfs_prealloc_blocks( struct xfs_mount *mp) { + if (xfs_sb_version_hasreflink(&mp->m_sb)) + return xfs_refc_block(mp) + 1; if (xfs_sb_version_hasrmapbt(&mp->m_sb)) return XFS_RMAP_BLOCK(mp) + 1; if (xfs_sb_version_hasfinobt(&mp->m_sb)) diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index 57c52a6..622055b 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h @@ -1455,6 +1455,8 @@ typedef __be32 xfs_rmap_ptr_t; */ #define XFS_REFC_CRC_MAGIC 0x52334643 /* 'R3FC' */ +unsigned int xfs_refc_block(struct xfs_mount *mp); + /* * BMAP Btree format definitions |