diff options
Diffstat (limited to 'fs/xfs/xfs_fsops.c')
| -rw-r--r-- | fs/xfs/xfs_fsops.c | 63 |
1 files changed, 41 insertions, 22 deletions
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index a5034af35db7..2196830bf5c0 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -114,6 +114,26 @@ xfs_fs_geometry( return 0; } +static struct xfs_buf * +xfs_growfs_get_hdr_buf( + struct xfs_mount *mp, + xfs_daddr_t blkno, + size_t numblks, + int flags) +{ + struct xfs_buf *bp; + + bp = xfs_buf_get_uncached(mp->m_ddev_targp, numblks, flags); + if (!bp) + return NULL; + + xfs_buf_zero(bp, 0, BBTOB(bp->b_length)); + bp->b_bn = blkno; + bp->b_maps[0].bm_bn = blkno; + + return bp; +} + static int xfs_growfs_data_private( xfs_mount_t *mp, /* mount point for filesystem */ @@ -189,15 +209,15 @@ xfs_growfs_data_private( /* * AG freelist header block */ - bp = xfs_buf_get(mp->m_ddev_targp, - XFS_AG_DADDR(mp, agno, XFS_AGF_DADDR(mp)), - XFS_FSS_TO_BB(mp, 1), 0); + bp = xfs_growfs_get_hdr_buf(mp, + XFS_AG_DADDR(mp, agno, XFS_AGF_DADDR(mp)), + XFS_FSS_TO_BB(mp, 1), 0); if (!bp) { error = ENOMEM; goto error0; } + agf = XFS_BUF_TO_AGF(bp); - memset(agf, 0, mp->m_sb.sb_sectsize); agf->agf_magicnum = cpu_to_be32(XFS_AGF_MAGIC); agf->agf_versionnum = cpu_to_be32(XFS_AGF_VERSION); agf->agf_seqno = cpu_to_be32(agno); @@ -226,15 +246,15 @@ xfs_growfs_data_private( /* * AG inode header block */ - bp = xfs_buf_get(mp->m_ddev_targp, - XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)), - XFS_FSS_TO_BB(mp, 1), 0); + bp = xfs_growfs_get_hdr_buf(mp, + XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)), + XFS_FSS_TO_BB(mp, 1), 0); if (!bp) { error = ENOMEM; goto error0; } + agi = XFS_BUF_TO_AGI(bp); - memset(agi, 0, mp->m_sb.sb_sectsize); agi->agi_magicnum = cpu_to_be32(XFS_AGI_MAGIC); agi->agi_versionnum = cpu_to_be32(XFS_AGI_VERSION); agi->agi_seqno = cpu_to_be32(agno); @@ -255,16 +275,16 @@ xfs_growfs_data_private( /* * BNO btree root block */ - bp = xfs_buf_get(mp->m_ddev_targp, - XFS_AGB_TO_DADDR(mp, agno, XFS_BNO_BLOCK(mp)), - BTOBB(mp->m_sb.sb_blocksize), 0); + bp = xfs_growfs_get_hdr_buf(mp, + XFS_AGB_TO_DADDR(mp, agno, XFS_BNO_BLOCK(mp)), + BTOBB(mp->m_sb.sb_blocksize), 0); + if (!bp) { error = ENOMEM; goto error0; } - xfs_buf_zero(bp, 0, BBTOB(bp->b_length)); - xfs_btree_init_block(mp, bp, XFS_ABTB_MAGIC, 0, 1, 0); + xfs_btree_init_block(mp, bp, XFS_ABTB_MAGIC, 0, 1, 0); arec = XFS_ALLOC_REC_ADDR(mp, XFS_BUF_TO_BLOCK(bp), 1); arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp)); arec->ar_blockcount = cpu_to_be32( @@ -278,16 +298,15 @@ xfs_growfs_data_private( /* * CNT btree root block */ - bp = xfs_buf_get(mp->m_ddev_targp, - XFS_AGB_TO_DADDR(mp, agno, XFS_CNT_BLOCK(mp)), - BTOBB(mp->m_sb.sb_blocksize), 0); + bp = xfs_growfs_get_hdr_buf(mp, + XFS_AGB_TO_DADDR(mp, agno, XFS_CNT_BLOCK(mp)), + BTOBB(mp->m_sb.sb_blocksize), 0); if (!bp) { error = ENOMEM; goto error0; } - xfs_buf_zero(bp, 0, BBTOB(bp->b_length)); - xfs_btree_init_block(mp, bp, XFS_ABTC_MAGIC, 0, 1, 0); + xfs_btree_init_block(mp, bp, XFS_ABTC_MAGIC, 0, 1, 0); arec = XFS_ALLOC_REC_ADDR(mp, XFS_BUF_TO_BLOCK(bp), 1); arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp)); arec->ar_blockcount = cpu_to_be32( @@ -302,14 +321,14 @@ xfs_growfs_data_private( /* * INO btree root block */ - bp = xfs_buf_get(mp->m_ddev_targp, - XFS_AGB_TO_DADDR(mp, agno, XFS_IBT_BLOCK(mp)), - BTOBB(mp->m_sb.sb_blocksize), 0); + bp = xfs_growfs_get_hdr_buf(mp, + XFS_AGB_TO_DADDR(mp, agno, XFS_IBT_BLOCK(mp)), + BTOBB(mp->m_sb.sb_blocksize), 0); if (!bp) { error = ENOMEM; goto error0; } - xfs_buf_zero(bp, 0, BBTOB(bp->b_length)); + xfs_btree_init_block(mp, bp, XFS_IBT_MAGIC, 0, 0, 0); error = xfs_bwrite(bp); |