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| author | Darrick J. Wong <darrick.wong@oracle.com> | 2016-10-03 18:11:18 +0200 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2016-10-03 18:11:18 +0200 |
| commit | ac4fef69386afb1c25d6b900fe1fcf77b96ea567 (patch) | |
| tree | 4c4c696110d6a3c41e2cbfccbb2b0a225230b3f8 /fs/xfs/xfs_fsops.c | |
| parent | xfs: define the on-disk refcount btree format (diff) | |
| download | linux-ac4fef69386afb1c25d6b900fe1fcf77b96ea567.tar.xz linux-ac4fef69386afb1c25d6b900fe1fcf77b96ea567.zip | |
xfs: add refcount btree support to growfs
Modify the growfs code to initialize new refcount btree blocks.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_fsops.c')
| -rw-r--r-- | fs/xfs/xfs_fsops.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index 94ac06f3d908..4b4059b5e501 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -259,6 +259,12 @@ xfs_growfs_data_private( agf->agf_longest = cpu_to_be32(tmpsize); if (xfs_sb_version_hascrc(&mp->m_sb)) uuid_copy(&agf->agf_uuid, &mp->m_sb.sb_meta_uuid); + if (xfs_sb_version_hasreflink(&mp->m_sb)) { + agf->agf_refcount_root = cpu_to_be32( + xfs_refc_block(mp)); + agf->agf_refcount_level = cpu_to_be32(1); + agf->agf_refcount_blocks = cpu_to_be32(1); + } error = xfs_bwrite(bp); xfs_buf_relse(bp); @@ -450,6 +456,17 @@ xfs_growfs_data_private( rrec->rm_offset = 0; be16_add_cpu(&block->bb_numrecs, 1); + /* account for refc btree root */ + if (xfs_sb_version_hasreflink(&mp->m_sb)) { + rrec = XFS_RMAP_REC_ADDR(block, 5); + rrec->rm_startblock = cpu_to_be32( + xfs_refc_block(mp)); + rrec->rm_blockcount = cpu_to_be32(1); + rrec->rm_owner = cpu_to_be64(XFS_RMAP_OWN_REFC); + rrec->rm_offset = 0; + be16_add_cpu(&block->bb_numrecs, 1); + } + error = xfs_bwrite(bp); xfs_buf_relse(bp); if (error) @@ -507,6 +524,28 @@ xfs_growfs_data_private( goto error0; } + /* + * refcount btree root block + */ + if (xfs_sb_version_hasreflink(&mp->m_sb)) { + bp = xfs_growfs_get_hdr_buf(mp, + XFS_AGB_TO_DADDR(mp, agno, xfs_refc_block(mp)), + BTOBB(mp->m_sb.sb_blocksize), 0, + &xfs_refcountbt_buf_ops); + if (!bp) { + error = -ENOMEM; + goto error0; + } + + xfs_btree_init_block(mp, bp, XFS_REFC_CRC_MAGIC, + 0, 0, agno, + XFS_BTREE_CRC_BLOCKS); + + error = xfs_bwrite(bp); + xfs_buf_relse(bp); + if (error) + goto error0; + } } xfs_trans_agblocks_delta(tp, nfree); /* |