^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (C) 2017 Oracle. All Rights Reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Author: Darrick J. Wong <darrick.wong@oracle.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include "xfs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include "xfs_fs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include "xfs_shared.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include "xfs_format.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include "xfs_trans_resv.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include "xfs_mount.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include "xfs_btree.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "xfs_sb.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include "xfs_alloc.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include "xfs_ialloc.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include "xfs_rmap.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "scrub/scrub.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "scrub/common.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) /* Superblock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) /* Cross-reference with the other btrees. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) STATIC void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) xchk_superblock_xref(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) struct xfs_scrub *sc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct xfs_buf *bp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) struct xfs_mount *mp = sc->mp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) xfs_agnumber_t agno = sc->sm->sm_agno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) xfs_agblock_t agbno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) agbno = XFS_SB_BLOCK(mp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) error = xchk_ag_init(sc, agno, &sc->sa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) if (!xchk_xref_process_error(sc, agno, agbno, &error))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) xchk_xref_is_used_space(sc, agbno, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) xchk_xref_is_not_inode_chunk(sc, agbno, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) xchk_xref_is_owned_by(sc, agbno, 1, &XFS_RMAP_OINFO_FS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) xchk_xref_is_not_shared(sc, agbno, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) /* scrub teardown will take care of sc->sa for us */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) * Scrub the filesystem superblock.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * Note: We do /not/ attempt to check AG 0's superblock. Mount is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) * responsible for validating all the geometry information in sb 0, so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) * if the filesystem is capable of initiating online scrub, then clearly
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) * sb 0 is ok and we can use its information to check everything else.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) xchk_superblock(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct xfs_scrub *sc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) struct xfs_mount *mp = sc->mp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct xfs_buf *bp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) struct xfs_dsb *sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) xfs_agnumber_t agno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) uint32_t v2_ok;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) __be32 features_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) __be16 vernum_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) agno = sc->sm->sm_agno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) if (agno == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) error = xfs_sb_read_secondary(mp, sc->tp, agno, &bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) * The superblock verifier can return several different error codes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) * if it thinks the superblock doesn't look right. For a mount these
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) * would all get bounced back to userspace, but if we're here then the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) * fs mounted successfully, which means that this secondary superblock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) * is simply incorrect. Treat all these codes the same way we treat
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) * any corruption.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) switch (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) case -EINVAL: /* also -EWRONGFS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) case -ENOSYS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) case -EFBIG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) error = -EFSCORRUPTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) if (!xchk_process_error(sc, agno, XFS_SB_BLOCK(mp), &error))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) sb = bp->b_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) * Verify the geometries match. Fields that are permanently
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) * set by mkfs are checked; fields that can be updated later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) * (and are not propagated to backup superblocks) are preen
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) * checked.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) if (sb->sb_blocksize != cpu_to_be32(mp->m_sb.sb_blocksize))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) if (sb->sb_dblocks != cpu_to_be64(mp->m_sb.sb_dblocks))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) if (sb->sb_rblocks != cpu_to_be64(mp->m_sb.sb_rblocks))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) if (sb->sb_rextents != cpu_to_be64(mp->m_sb.sb_rextents))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) if (!uuid_equal(&sb->sb_uuid, &mp->m_sb.sb_uuid))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) xchk_block_set_preen(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) if (sb->sb_logstart != cpu_to_be64(mp->m_sb.sb_logstart))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) if (sb->sb_rootino != cpu_to_be64(mp->m_sb.sb_rootino))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) xchk_block_set_preen(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) if (sb->sb_rbmino != cpu_to_be64(mp->m_sb.sb_rbmino))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) xchk_block_set_preen(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) if (sb->sb_rsumino != cpu_to_be64(mp->m_sb.sb_rsumino))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) xchk_block_set_preen(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) if (sb->sb_rextsize != cpu_to_be32(mp->m_sb.sb_rextsize))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) if (sb->sb_agblocks != cpu_to_be32(mp->m_sb.sb_agblocks))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) if (sb->sb_agcount != cpu_to_be32(mp->m_sb.sb_agcount))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) if (sb->sb_rbmblocks != cpu_to_be32(mp->m_sb.sb_rbmblocks))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) if (sb->sb_logblocks != cpu_to_be32(mp->m_sb.sb_logblocks))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) /* Check sb_versionnum bits that are set at mkfs time. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) vernum_mask = cpu_to_be16(~XFS_SB_VERSION_OKBITS |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) XFS_SB_VERSION_NUMBITS |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) XFS_SB_VERSION_ALIGNBIT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) XFS_SB_VERSION_DALIGNBIT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) XFS_SB_VERSION_SHAREDBIT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) XFS_SB_VERSION_LOGV2BIT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) XFS_SB_VERSION_SECTORBIT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) XFS_SB_VERSION_EXTFLGBIT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) XFS_SB_VERSION_DIRV2BIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) if ((sb->sb_versionnum & vernum_mask) !=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) (cpu_to_be16(mp->m_sb.sb_versionnum) & vernum_mask))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) /* Check sb_versionnum bits that can be set after mkfs time. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) vernum_mask = cpu_to_be16(XFS_SB_VERSION_ATTRBIT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) XFS_SB_VERSION_NLINKBIT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) XFS_SB_VERSION_QUOTABIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) if ((sb->sb_versionnum & vernum_mask) !=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) (cpu_to_be16(mp->m_sb.sb_versionnum) & vernum_mask))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) xchk_block_set_preen(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) if (sb->sb_sectsize != cpu_to_be16(mp->m_sb.sb_sectsize))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) if (sb->sb_inodesize != cpu_to_be16(mp->m_sb.sb_inodesize))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) if (sb->sb_inopblock != cpu_to_be16(mp->m_sb.sb_inopblock))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) if (memcmp(sb->sb_fname, mp->m_sb.sb_fname, sizeof(sb->sb_fname)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) xchk_block_set_preen(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) if (sb->sb_blocklog != mp->m_sb.sb_blocklog)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) if (sb->sb_sectlog != mp->m_sb.sb_sectlog)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) if (sb->sb_inodelog != mp->m_sb.sb_inodelog)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) if (sb->sb_inopblog != mp->m_sb.sb_inopblog)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) if (sb->sb_agblklog != mp->m_sb.sb_agblklog)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) if (sb->sb_rextslog != mp->m_sb.sb_rextslog)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) if (sb->sb_imax_pct != mp->m_sb.sb_imax_pct)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) xchk_block_set_preen(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) * Skip the summary counters since we track them in memory anyway.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) * sb_icount, sb_ifree, sb_fdblocks, sb_frexents
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) if (sb->sb_uquotino != cpu_to_be64(mp->m_sb.sb_uquotino))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) xchk_block_set_preen(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) if (sb->sb_gquotino != cpu_to_be64(mp->m_sb.sb_gquotino))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) xchk_block_set_preen(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) * Skip the quota flags since repair will force quotacheck.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) * sb_qflags
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) if (sb->sb_flags != mp->m_sb.sb_flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) if (sb->sb_shared_vn != mp->m_sb.sb_shared_vn)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) if (sb->sb_inoalignmt != cpu_to_be32(mp->m_sb.sb_inoalignmt))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) if (sb->sb_unit != cpu_to_be32(mp->m_sb.sb_unit))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) xchk_block_set_preen(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) if (sb->sb_width != cpu_to_be32(mp->m_sb.sb_width))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) xchk_block_set_preen(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) if (sb->sb_dirblklog != mp->m_sb.sb_dirblklog)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) if (sb->sb_logsectlog != mp->m_sb.sb_logsectlog)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) if (sb->sb_logsectsize != cpu_to_be16(mp->m_sb.sb_logsectsize))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) if (sb->sb_logsunit != cpu_to_be32(mp->m_sb.sb_logsunit))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) /* Do we see any invalid bits in sb_features2? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) if (!xfs_sb_version_hasmorebits(&mp->m_sb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) if (sb->sb_features2 != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) v2_ok = XFS_SB_VERSION2_OKBITS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) if (XFS_SB_VERSION_NUM(&mp->m_sb) >= XFS_SB_VERSION_5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) v2_ok |= XFS_SB_VERSION2_CRCBIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) if (!!(sb->sb_features2 & cpu_to_be32(~v2_ok)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) if (sb->sb_features2 != sb->sb_bad_features2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) xchk_block_set_preen(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) /* Check sb_features2 flags that are set at mkfs time. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) features_mask = cpu_to_be32(XFS_SB_VERSION2_LAZYSBCOUNTBIT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) XFS_SB_VERSION2_PROJID32BIT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) XFS_SB_VERSION2_CRCBIT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) XFS_SB_VERSION2_FTYPE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) if ((sb->sb_features2 & features_mask) !=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) (cpu_to_be32(mp->m_sb.sb_features2) & features_mask))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) /* Check sb_features2 flags that can be set after mkfs time. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) features_mask = cpu_to_be32(XFS_SB_VERSION2_ATTR2BIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) if ((sb->sb_features2 & features_mask) !=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) (cpu_to_be32(mp->m_sb.sb_features2) & features_mask))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) if (!xfs_sb_version_hascrc(&mp->m_sb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) /* all v5 fields must be zero */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) if (memchr_inv(&sb->sb_features_compat, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) sizeof(struct xfs_dsb) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) offsetof(struct xfs_dsb, sb_features_compat)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) /* Check compat flags; all are set at mkfs time. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) features_mask = cpu_to_be32(XFS_SB_FEAT_COMPAT_UNKNOWN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) if ((sb->sb_features_compat & features_mask) !=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) (cpu_to_be32(mp->m_sb.sb_features_compat) & features_mask))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) /* Check ro compat flags; all are set at mkfs time. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) features_mask = cpu_to_be32(XFS_SB_FEAT_RO_COMPAT_UNKNOWN |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) XFS_SB_FEAT_RO_COMPAT_FINOBT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) XFS_SB_FEAT_RO_COMPAT_RMAPBT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) XFS_SB_FEAT_RO_COMPAT_REFLINK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) if ((sb->sb_features_ro_compat & features_mask) !=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) (cpu_to_be32(mp->m_sb.sb_features_ro_compat) &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) features_mask))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) /* Check incompat flags; all are set at mkfs time. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) features_mask = cpu_to_be32(XFS_SB_FEAT_INCOMPAT_UNKNOWN |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) XFS_SB_FEAT_INCOMPAT_FTYPE |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) XFS_SB_FEAT_INCOMPAT_SPINODES |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) XFS_SB_FEAT_INCOMPAT_META_UUID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) if ((sb->sb_features_incompat & features_mask) !=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) (cpu_to_be32(mp->m_sb.sb_features_incompat) &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) features_mask))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) /* Check log incompat flags; all are set at mkfs time. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) features_mask = cpu_to_be32(XFS_SB_FEAT_INCOMPAT_LOG_UNKNOWN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) if ((sb->sb_features_log_incompat & features_mask) !=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) (cpu_to_be32(mp->m_sb.sb_features_log_incompat) &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) features_mask))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) /* Don't care about sb_crc */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) if (sb->sb_spino_align != cpu_to_be32(mp->m_sb.sb_spino_align))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) if (sb->sb_pquotino != cpu_to_be64(mp->m_sb.sb_pquotino))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) xchk_block_set_preen(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) /* Don't care about sb_lsn */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) if (xfs_sb_version_hasmetauuid(&mp->m_sb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) /* The metadata UUID must be the same for all supers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) if (!uuid_equal(&sb->sb_meta_uuid, &mp->m_sb.sb_meta_uuid))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) /* Everything else must be zero. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) if (memchr_inv(sb + 1, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) BBTOB(bp->b_length) - sizeof(struct xfs_dsb)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) xchk_block_set_corrupt(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) xchk_superblock_xref(sc, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) /* AGF */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) /* Tally freespace record lengths. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) STATIC int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) xchk_agf_record_bno_lengths(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) struct xfs_btree_cur *cur,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) struct xfs_alloc_rec_incore *rec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) void *priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) xfs_extlen_t *blocks = priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) (*blocks) += rec->ar_blockcount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) /* Check agf_freeblks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) xchk_agf_xref_freeblks(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) struct xfs_scrub *sc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) struct xfs_agf *agf = sc->sa.agf_bp->b_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) xfs_extlen_t blocks = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) if (!sc->sa.bno_cur)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) error = xfs_alloc_query_all(sc->sa.bno_cur,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) xchk_agf_record_bno_lengths, &blocks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) if (!xchk_should_check_xref(sc, &error, &sc->sa.bno_cur))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) if (blocks != be32_to_cpu(agf->agf_freeblks))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) xchk_block_xref_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) /* Cross reference the AGF with the cntbt (freespace by length btree) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) xchk_agf_xref_cntbt(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) struct xfs_scrub *sc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) struct xfs_agf *agf = sc->sa.agf_bp->b_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) xfs_agblock_t agbno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) xfs_extlen_t blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) int have;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) if (!sc->sa.cnt_cur)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) /* Any freespace at all? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) error = xfs_alloc_lookup_le(sc->sa.cnt_cur, 0, -1U, &have);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) if (!xchk_should_check_xref(sc, &error, &sc->sa.cnt_cur))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) if (!have) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) if (agf->agf_freeblks != cpu_to_be32(0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) xchk_block_xref_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) /* Check agf_longest */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) error = xfs_alloc_get_rec(sc->sa.cnt_cur, &agbno, &blocks, &have);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) if (!xchk_should_check_xref(sc, &error, &sc->sa.cnt_cur))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) if (!have || blocks != be32_to_cpu(agf->agf_longest))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) xchk_block_xref_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) /* Check the btree block counts in the AGF against the btrees. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) STATIC void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) xchk_agf_xref_btreeblks(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) struct xfs_scrub *sc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) struct xfs_agf *agf = sc->sa.agf_bp->b_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) struct xfs_mount *mp = sc->mp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) xfs_agblock_t blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) xfs_agblock_t btreeblks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) /* Check agf_rmap_blocks; set up for agf_btreeblks check */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) if (sc->sa.rmap_cur) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) error = xfs_btree_count_blocks(sc->sa.rmap_cur, &blocks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) if (!xchk_should_check_xref(sc, &error, &sc->sa.rmap_cur))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) btreeblks = blocks - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) if (blocks != be32_to_cpu(agf->agf_rmap_blocks))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) xchk_block_xref_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) btreeblks = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) * No rmap cursor; we can't xref if we have the rmapbt feature.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) * We also can't do it if we're missing the free space btree cursors.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) if ((xfs_sb_version_hasrmapbt(&mp->m_sb) && !sc->sa.rmap_cur) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) !sc->sa.bno_cur || !sc->sa.cnt_cur)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) /* Check agf_btreeblks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) error = xfs_btree_count_blocks(sc->sa.bno_cur, &blocks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) if (!xchk_should_check_xref(sc, &error, &sc->sa.bno_cur))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) btreeblks += blocks - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) error = xfs_btree_count_blocks(sc->sa.cnt_cur, &blocks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) if (!xchk_should_check_xref(sc, &error, &sc->sa.cnt_cur))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) btreeblks += blocks - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) if (btreeblks != be32_to_cpu(agf->agf_btreeblks))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) xchk_block_xref_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) /* Check agf_refcount_blocks against tree size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) xchk_agf_xref_refcblks(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) struct xfs_scrub *sc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) struct xfs_agf *agf = sc->sa.agf_bp->b_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) xfs_agblock_t blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) if (!sc->sa.refc_cur)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) error = xfs_btree_count_blocks(sc->sa.refc_cur, &blocks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) if (!xchk_should_check_xref(sc, &error, &sc->sa.refc_cur))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) if (blocks != be32_to_cpu(agf->agf_refcount_blocks))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) xchk_block_xref_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) /* Cross-reference with the other btrees. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) STATIC void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) xchk_agf_xref(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) struct xfs_scrub *sc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) struct xfs_mount *mp = sc->mp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) xfs_agblock_t agbno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) agbno = XFS_AGF_BLOCK(mp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) error = xchk_ag_btcur_init(sc, &sc->sa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) xchk_xref_is_used_space(sc, agbno, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) xchk_agf_xref_freeblks(sc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) xchk_agf_xref_cntbt(sc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) xchk_xref_is_not_inode_chunk(sc, agbno, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) xchk_xref_is_owned_by(sc, agbno, 1, &XFS_RMAP_OINFO_FS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) xchk_agf_xref_btreeblks(sc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) xchk_xref_is_not_shared(sc, agbno, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) xchk_agf_xref_refcblks(sc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) /* scrub teardown will take care of sc->sa for us */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) /* Scrub the AGF. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) xchk_agf(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) struct xfs_scrub *sc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) struct xfs_mount *mp = sc->mp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) struct xfs_agf *agf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) struct xfs_perag *pag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) xfs_agnumber_t agno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) xfs_agblock_t agbno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) xfs_agblock_t eoag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) xfs_agblock_t agfl_first;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) xfs_agblock_t agfl_last;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) xfs_agblock_t agfl_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) xfs_agblock_t fl_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) int level;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) int error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) agno = sc->sa.agno = sc->sm->sm_agno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) error = xchk_ag_read_headers(sc, agno, &sc->sa.agi_bp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) &sc->sa.agf_bp, &sc->sa.agfl_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) if (!xchk_process_error(sc, agno, XFS_AGF_BLOCK(sc->mp), &error))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) xchk_buffer_recheck(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) agf = sc->sa.agf_bp->b_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) /* Check the AG length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) eoag = be32_to_cpu(agf->agf_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) if (eoag != xfs_ag_block_count(mp, agno))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) xchk_block_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) /* Check the AGF btree roots and levels */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) agbno = be32_to_cpu(agf->agf_roots[XFS_BTNUM_BNO]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) if (!xfs_verify_agbno(mp, agno, agbno))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) xchk_block_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) agbno = be32_to_cpu(agf->agf_roots[XFS_BTNUM_CNT]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) if (!xfs_verify_agbno(mp, agno, agbno))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) xchk_block_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) level = be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) if (level <= 0 || level > XFS_BTREE_MAXLEVELS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) xchk_block_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) level = be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) if (level <= 0 || level > XFS_BTREE_MAXLEVELS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) xchk_block_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) if (xfs_sb_version_hasrmapbt(&mp->m_sb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) agbno = be32_to_cpu(agf->agf_roots[XFS_BTNUM_RMAP]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) if (!xfs_verify_agbno(mp, agno, agbno))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) xchk_block_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) level = be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) if (level <= 0 || level > XFS_BTREE_MAXLEVELS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) xchk_block_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) if (xfs_sb_version_hasreflink(&mp->m_sb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) agbno = be32_to_cpu(agf->agf_refcount_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) if (!xfs_verify_agbno(mp, agno, agbno))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) xchk_block_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) level = be32_to_cpu(agf->agf_refcount_level);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) if (level <= 0 || level > XFS_BTREE_MAXLEVELS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) xchk_block_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) /* Check the AGFL counters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) agfl_first = be32_to_cpu(agf->agf_flfirst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) agfl_last = be32_to_cpu(agf->agf_fllast);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) agfl_count = be32_to_cpu(agf->agf_flcount);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) if (agfl_last > agfl_first)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) fl_count = agfl_last - agfl_first + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) fl_count = xfs_agfl_size(mp) - agfl_first + agfl_last + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) if (agfl_count != 0 && fl_count != agfl_count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) xchk_block_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) /* Do the incore counters match? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) pag = xfs_perag_get(mp, agno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) if (pag->pagf_freeblks != be32_to_cpu(agf->agf_freeblks))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) xchk_block_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) if (pag->pagf_flcount != be32_to_cpu(agf->agf_flcount))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) xchk_block_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) if (pag->pagf_btreeblks != be32_to_cpu(agf->agf_btreeblks))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) xchk_block_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) xfs_perag_put(pag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) xchk_agf_xref(sc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) /* AGFL */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) struct xchk_agfl_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) unsigned int sz_entries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) unsigned int nr_entries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) xfs_agblock_t *entries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) struct xfs_scrub *sc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) /* Cross-reference with the other btrees. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) STATIC void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) xchk_agfl_block_xref(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) struct xfs_scrub *sc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) xfs_agblock_t agbno)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) xchk_xref_is_used_space(sc, agbno, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) xchk_xref_is_not_inode_chunk(sc, agbno, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) xchk_xref_is_owned_by(sc, agbno, 1, &XFS_RMAP_OINFO_AG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) xchk_xref_is_not_shared(sc, agbno, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) /* Scrub an AGFL block. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) STATIC int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) xchk_agfl_block(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) struct xfs_mount *mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) xfs_agblock_t agbno,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) void *priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) struct xchk_agfl_info *sai = priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) struct xfs_scrub *sc = sai->sc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) xfs_agnumber_t agno = sc->sa.agno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) if (xfs_verify_agbno(mp, agno, agbno) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) sai->nr_entries < sai->sz_entries)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) sai->entries[sai->nr_entries++] = agbno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) xchk_block_set_corrupt(sc, sc->sa.agfl_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) xchk_agfl_block_xref(sc, agbno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) return -ECANCELED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) xchk_agblock_cmp(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) const void *pa,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) const void *pb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) const xfs_agblock_t *a = pa;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) const xfs_agblock_t *b = pb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) return (int)*a - (int)*b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) /* Cross-reference with the other btrees. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) STATIC void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) xchk_agfl_xref(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) struct xfs_scrub *sc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) struct xfs_mount *mp = sc->mp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) xfs_agblock_t agbno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) agbno = XFS_AGFL_BLOCK(mp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) error = xchk_ag_btcur_init(sc, &sc->sa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) xchk_xref_is_used_space(sc, agbno, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) xchk_xref_is_not_inode_chunk(sc, agbno, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) xchk_xref_is_owned_by(sc, agbno, 1, &XFS_RMAP_OINFO_FS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) xchk_xref_is_not_shared(sc, agbno, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) * Scrub teardown will take care of sc->sa for us. Leave sc->sa
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) * active so that the agfl block xref can use it too.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) /* Scrub the AGFL. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) xchk_agfl(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) struct xfs_scrub *sc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) struct xchk_agfl_info sai;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) struct xfs_agf *agf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) xfs_agnumber_t agno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) unsigned int agflcount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) unsigned int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) agno = sc->sa.agno = sc->sm->sm_agno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) error = xchk_ag_read_headers(sc, agno, &sc->sa.agi_bp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) &sc->sa.agf_bp, &sc->sa.agfl_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) if (!xchk_process_error(sc, agno, XFS_AGFL_BLOCK(sc->mp), &error))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) if (!sc->sa.agf_bp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) return -EFSCORRUPTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) xchk_buffer_recheck(sc, sc->sa.agfl_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) xchk_agfl_xref(sc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) /* Allocate buffer to ensure uniqueness of AGFL entries. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) agf = sc->sa.agf_bp->b_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) agflcount = be32_to_cpu(agf->agf_flcount);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) if (agflcount > xfs_agfl_size(sc->mp)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) xchk_block_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) memset(&sai, 0, sizeof(sai));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) sai.sc = sc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) sai.sz_entries = agflcount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) sai.entries = kmem_zalloc(sizeof(xfs_agblock_t) * agflcount,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) KM_MAYFAIL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) if (!sai.entries) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) error = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) /* Check the blocks in the AGFL. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) error = xfs_agfl_walk(sc->mp, sc->sa.agf_bp->b_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) sc->sa.agfl_bp, xchk_agfl_block, &sai);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) if (error == -ECANCELED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) goto out_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) goto out_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) if (agflcount != sai.nr_entries) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) xchk_block_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) goto out_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) /* Sort entries, check for duplicates. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) sort(sai.entries, sai.nr_entries, sizeof(sai.entries[0]),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) xchk_agblock_cmp, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) for (i = 1; i < sai.nr_entries; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) if (sai.entries[i] == sai.entries[i - 1]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) xchk_block_set_corrupt(sc, sc->sa.agf_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) out_free:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) kmem_free(sai.entries);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) /* AGI */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) /* Check agi_count/agi_freecount */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) xchk_agi_xref_icounts(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) struct xfs_scrub *sc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) struct xfs_agi *agi = sc->sa.agi_bp->b_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) xfs_agino_t icount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) xfs_agino_t freecount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) if (!sc->sa.ino_cur)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) error = xfs_ialloc_count_inodes(sc->sa.ino_cur, &icount, &freecount);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) if (!xchk_should_check_xref(sc, &error, &sc->sa.ino_cur))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) if (be32_to_cpu(agi->agi_count) != icount ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) be32_to_cpu(agi->agi_freecount) != freecount)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) xchk_block_xref_set_corrupt(sc, sc->sa.agi_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) /* Check agi_[fi]blocks against tree size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) xchk_agi_xref_fiblocks(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) struct xfs_scrub *sc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) struct xfs_agi *agi = sc->sa.agi_bp->b_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) xfs_agblock_t blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) int error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) if (!xfs_sb_version_hasinobtcounts(&sc->mp->m_sb))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) if (sc->sa.ino_cur) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) error = xfs_btree_count_blocks(sc->sa.ino_cur, &blocks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) if (!xchk_should_check_xref(sc, &error, &sc->sa.ino_cur))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) if (blocks != be32_to_cpu(agi->agi_iblocks))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) xchk_block_xref_set_corrupt(sc, sc->sa.agi_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) if (sc->sa.fino_cur) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) error = xfs_btree_count_blocks(sc->sa.fino_cur, &blocks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) if (!xchk_should_check_xref(sc, &error, &sc->sa.fino_cur))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) if (blocks != be32_to_cpu(agi->agi_fblocks))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) xchk_block_xref_set_corrupt(sc, sc->sa.agi_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) /* Cross-reference with the other btrees. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) STATIC void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) xchk_agi_xref(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) struct xfs_scrub *sc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) struct xfs_mount *mp = sc->mp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) xfs_agblock_t agbno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) agbno = XFS_AGI_BLOCK(mp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) error = xchk_ag_btcur_init(sc, &sc->sa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) xchk_xref_is_used_space(sc, agbno, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) xchk_xref_is_not_inode_chunk(sc, agbno, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) xchk_agi_xref_icounts(sc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) xchk_xref_is_owned_by(sc, agbno, 1, &XFS_RMAP_OINFO_FS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) xchk_xref_is_not_shared(sc, agbno, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) xchk_agi_xref_fiblocks(sc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) /* scrub teardown will take care of sc->sa for us */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) /* Scrub the AGI. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) xchk_agi(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) struct xfs_scrub *sc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) struct xfs_mount *mp = sc->mp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) struct xfs_agi *agi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) struct xfs_perag *pag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) xfs_agnumber_t agno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) xfs_agblock_t agbno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) xfs_agblock_t eoag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) xfs_agino_t agino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) xfs_agino_t first_agino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) xfs_agino_t last_agino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) xfs_agino_t icount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) int level;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) int error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) agno = sc->sa.agno = sc->sm->sm_agno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) error = xchk_ag_read_headers(sc, agno, &sc->sa.agi_bp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) &sc->sa.agf_bp, &sc->sa.agfl_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) if (!xchk_process_error(sc, agno, XFS_AGI_BLOCK(sc->mp), &error))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) xchk_buffer_recheck(sc, sc->sa.agi_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) agi = sc->sa.agi_bp->b_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) /* Check the AG length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) eoag = be32_to_cpu(agi->agi_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) if (eoag != xfs_ag_block_count(mp, agno))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) xchk_block_set_corrupt(sc, sc->sa.agi_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) /* Check btree roots and levels */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) agbno = be32_to_cpu(agi->agi_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) if (!xfs_verify_agbno(mp, agno, agbno))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) xchk_block_set_corrupt(sc, sc->sa.agi_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) level = be32_to_cpu(agi->agi_level);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) if (level <= 0 || level > XFS_BTREE_MAXLEVELS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) xchk_block_set_corrupt(sc, sc->sa.agi_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) if (xfs_sb_version_hasfinobt(&mp->m_sb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) agbno = be32_to_cpu(agi->agi_free_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) if (!xfs_verify_agbno(mp, agno, agbno))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) xchk_block_set_corrupt(sc, sc->sa.agi_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) level = be32_to_cpu(agi->agi_free_level);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) if (level <= 0 || level > XFS_BTREE_MAXLEVELS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) xchk_block_set_corrupt(sc, sc->sa.agi_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) /* Check inode counters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) xfs_agino_range(mp, agno, &first_agino, &last_agino);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) icount = be32_to_cpu(agi->agi_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) if (icount > last_agino - first_agino + 1 ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) icount < be32_to_cpu(agi->agi_freecount))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) xchk_block_set_corrupt(sc, sc->sa.agi_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) /* Check inode pointers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) agino = be32_to_cpu(agi->agi_newino);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) if (!xfs_verify_agino_or_null(mp, agno, agino))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) xchk_block_set_corrupt(sc, sc->sa.agi_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) agino = be32_to_cpu(agi->agi_dirino);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) if (!xfs_verify_agino_or_null(mp, agno, agino))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) xchk_block_set_corrupt(sc, sc->sa.agi_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) /* Check unlinked inode buckets */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) for (i = 0; i < XFS_AGI_UNLINKED_BUCKETS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) agino = be32_to_cpu(agi->agi_unlinked[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) if (!xfs_verify_agino_or_null(mp, agno, agino))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) xchk_block_set_corrupt(sc, sc->sa.agi_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) if (agi->agi_pad32 != cpu_to_be32(0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) xchk_block_set_corrupt(sc, sc->sa.agi_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) /* Do the incore counters match? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) pag = xfs_perag_get(mp, agno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) if (pag->pagi_count != be32_to_cpu(agi->agi_count))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) xchk_block_set_corrupt(sc, sc->sa.agi_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) if (pag->pagi_freecount != be32_to_cpu(agi->agi_freecount))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) xchk_block_set_corrupt(sc, sc->sa.agi_bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) xfs_perag_put(pag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) xchk_agi_xref(sc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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