1*d25522f1SDarrick J. Wong /* 2*d25522f1SDarrick J. Wong * Copyright (C) 2018 Oracle. All Rights Reserved. 3*d25522f1SDarrick J. Wong * 4*d25522f1SDarrick J. Wong * Author: Darrick J. Wong <darrick.wong@oracle.com> 5*d25522f1SDarrick J. Wong * 6*d25522f1SDarrick J. Wong * This program is free software; you can redistribute it and/or 7*d25522f1SDarrick J. Wong * modify it under the terms of the GNU General Public License 8*d25522f1SDarrick J. Wong * as published by the Free Software Foundation; either version 2 9*d25522f1SDarrick J. Wong * of the License, or (at your option) any later version. 10*d25522f1SDarrick J. Wong * 11*d25522f1SDarrick J. Wong * This program is distributed in the hope that it would be useful, 12*d25522f1SDarrick J. Wong * but WITHOUT ANY WARRANTY; without even the implied warranty of 13*d25522f1SDarrick J. Wong * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14*d25522f1SDarrick J. Wong * GNU General Public License for more details. 15*d25522f1SDarrick J. Wong * 16*d25522f1SDarrick J. Wong * You should have received a copy of the GNU General Public License 17*d25522f1SDarrick J. Wong * along with this program; if not, write the Free Software Foundation, 18*d25522f1SDarrick J. Wong * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. 19*d25522f1SDarrick J. Wong */ 20*d25522f1SDarrick J. Wong #include "xfs.h" 21*d25522f1SDarrick J. Wong #include "xfs_fs.h" 22*d25522f1SDarrick J. Wong #include "xfs_shared.h" 23*d25522f1SDarrick J. Wong #include "xfs_format.h" 24*d25522f1SDarrick J. Wong #include "xfs_trans_resv.h" 25*d25522f1SDarrick J. Wong #include "xfs_mount.h" 26*d25522f1SDarrick J. Wong #include "xfs_defer.h" 27*d25522f1SDarrick J. Wong #include "xfs_btree.h" 28*d25522f1SDarrick J. Wong #include "xfs_bit.h" 29*d25522f1SDarrick J. Wong #include "xfs_log_format.h" 30*d25522f1SDarrick J. Wong #include "xfs_trans.h" 31*d25522f1SDarrick J. Wong #include "xfs_sb.h" 32*d25522f1SDarrick J. Wong #include "xfs_inode.h" 33*d25522f1SDarrick J. Wong #include "xfs_alloc.h" 34*d25522f1SDarrick J. Wong #include "xfs_ialloc.h" 35*d25522f1SDarrick J. Wong #include "xfs_rmap.h" 36*d25522f1SDarrick J. Wong #include "scrub/xfs_scrub.h" 37*d25522f1SDarrick J. Wong #include "scrub/scrub.h" 38*d25522f1SDarrick J. Wong #include "scrub/common.h" 39*d25522f1SDarrick J. Wong #include "scrub/trace.h" 40*d25522f1SDarrick J. Wong 41*d25522f1SDarrick J. Wong /* Superblock */ 42*d25522f1SDarrick J. Wong 43*d25522f1SDarrick J. Wong /* Repair the superblock. */ 44*d25522f1SDarrick J. Wong int 45*d25522f1SDarrick J. Wong xfs_repair_superblock( 46*d25522f1SDarrick J. Wong struct xfs_scrub_context *sc) 47*d25522f1SDarrick J. Wong { 48*d25522f1SDarrick J. Wong struct xfs_mount *mp = sc->mp; 49*d25522f1SDarrick J. Wong struct xfs_buf *bp; 50*d25522f1SDarrick J. Wong xfs_agnumber_t agno; 51*d25522f1SDarrick J. Wong int error; 52*d25522f1SDarrick J. Wong 53*d25522f1SDarrick J. Wong /* Don't try to repair AG 0's sb; let xfs_repair deal with it. */ 54*d25522f1SDarrick J. Wong agno = sc->sm->sm_agno; 55*d25522f1SDarrick J. Wong if (agno == 0) 56*d25522f1SDarrick J. Wong return -EOPNOTSUPP; 57*d25522f1SDarrick J. Wong 58*d25522f1SDarrick J. Wong error = xfs_sb_get_secondary(mp, sc->tp, agno, &bp); 59*d25522f1SDarrick J. Wong if (error) 60*d25522f1SDarrick J. Wong return error; 61*d25522f1SDarrick J. Wong 62*d25522f1SDarrick J. Wong /* Copy AG 0's superblock to this one. */ 63*d25522f1SDarrick J. Wong xfs_buf_zero(bp, 0, BBTOB(bp->b_length)); 64*d25522f1SDarrick J. Wong xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb); 65*d25522f1SDarrick J. Wong 66*d25522f1SDarrick J. Wong /* Write this to disk. */ 67*d25522f1SDarrick J. Wong xfs_trans_buf_set_type(sc->tp, bp, XFS_BLFT_SB_BUF); 68*d25522f1SDarrick J. Wong xfs_trans_log_buf(sc->tp, bp, 0, BBTOB(bp->b_length) - 1); 69*d25522f1SDarrick J. Wong return error; 70*d25522f1SDarrick J. Wong } 71