diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2024-11-20 16:21:15 -0800 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2024-12-23 13:06:16 -0800 |
| commit | 92b2019493d114d2fad7219376a2448d9efba4a7 (patch) | |
| tree | 23f29348cfd888f5fd17156d2ea54f60ad4ff3a9 /fs/xfs | |
| parent | 83ccffc489975db625d7f2600d39faa8b0ff69d6 (diff) | |
xfs: repair inodes that have a refcount btree in the data fork
Plumb knowledge of refcount btrees into the inode core repair code.
Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/scrub/inode_repair.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/fs/xfs/scrub/inode_repair.c b/fs/xfs/scrub/inode_repair.c index 701baee144a6..2f641b6d663e 100644 --- a/fs/xfs/scrub/inode_repair.c +++ b/fs/xfs/scrub/inode_repair.c @@ -40,6 +40,7 @@ #include "xfs_symlink_remote.h" #include "xfs_rtgroup.h" #include "xfs_rtrmap_btree.h" +#include "xfs_rtrefcount_btree.h" #include "scrub/xfs_scrub.h" #include "scrub/scrub.h" #include "scrub/common.h" @@ -970,6 +971,34 @@ xrep_dinode_bad_rtrmapbt_fork( return false; } +/* Return true if this refcount-format ifork looks like garbage. */ +STATIC bool +xrep_dinode_bad_rtrefcountbt_fork( + struct xfs_scrub *sc, + struct xfs_dinode *dip, + unsigned int dfork_size) +{ + struct xfs_rtrefcount_root *dfp; + unsigned int nrecs; + unsigned int level; + + if (dfork_size < sizeof(struct xfs_rtrefcount_root)) + return true; + + dfp = XFS_DFORK_PTR(dip, XFS_DATA_FORK); + nrecs = be16_to_cpu(dfp->bb_numrecs); + level = be16_to_cpu(dfp->bb_level); + + if (level > sc->mp->m_rtrefc_maxlevels) + return true; + if (xfs_rtrefcount_droot_space_calc(level, nrecs) > dfork_size) + return true; + if (level > 0 && nrecs == 0) + return true; + + return false; +} + /* Check a metadata-btree fork. */ STATIC bool xrep_dinode_bad_metabt_fork( @@ -984,6 +1013,8 @@ xrep_dinode_bad_metabt_fork( switch (be16_to_cpu(dip->di_metatype)) { case XFS_METAFILE_RTRMAP: return xrep_dinode_bad_rtrmapbt_fork(sc, dip, dfork_size); + case XFS_METAFILE_RTREFCOUNT: + return xrep_dinode_bad_rtrefcountbt_fork(sc, dip, dfork_size); default: return true; } @@ -1249,6 +1280,7 @@ xrep_dinode_ensure_forkoff( { struct xfs_bmdr_block *bmdr; struct xfs_rtrmap_root *rmdr; + struct xfs_rtrefcount_root *rcdr; struct xfs_scrub *sc = ri->sc; xfs_extnum_t attr_extents, data_extents; size_t bmdr_minsz = xfs_bmdr_space_calc(1); @@ -1361,6 +1393,10 @@ xrep_dinode_ensure_forkoff( rmdr = XFS_DFORK_PTR(dip, XFS_DATA_FORK); dfork_min = xfs_rtrmap_broot_space(sc->mp, rmdr); break; + case XFS_METAFILE_RTREFCOUNT: + rcdr = XFS_DFORK_PTR(dip, XFS_DATA_FORK); + dfork_min = xfs_rtrefcount_broot_space(sc->mp, rcdr); + break; default: dfork_min = 0; break; |