From: Darrick J. Wong <djwong@xxxxxxxxxx> Don't let the attr fork extent count exceed the maximum possible value. Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx> Reviewed-by: Christoph Hellwig <hch@xxxxxx> --- repair/dinode.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/repair/dinode.c b/repair/dinode.c index b8f5bf4e5..bf93a5790 100644 --- a/repair/dinode.c +++ b/repair/dinode.c @@ -2050,6 +2050,7 @@ process_inode_attr_fork( xfs_ino_t lino = XFS_AGINO_TO_INO(mp, agno, ino); struct xfs_dinode *dino = *dinop; struct blkmap *ablkmap = NULL; + xfs_extnum_t max_nex; int repair = 0; int err; int try_rebuild = -1; /* don't know yet */ @@ -2071,6 +2072,11 @@ process_inode_attr_fork( } *anextents = xfs_dfork_attr_extents(dino); + max_nex = xfs_iext_max_nextents( + xfs_dinode_has_large_extent_counts(dino), + XFS_ATTR_FORK); + if (*anextents > max_nex) + *anextents = 1; if (*anextents > be64_to_cpu(dino->di_nblocks)) *anextents = 1;
