diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_rmap.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_rmap.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_rmap.c b/fs/xfs/libxfs/xfs_rmap.c index dd019cee1b3b..7465cfb39276 100644 --- a/fs/xfs/libxfs/xfs_rmap.c +++ b/fs/xfs/libxfs/xfs_rmap.c @@ -444,6 +444,30 @@ xfs_rmap_unmap( goto out_done; } + /* + * If we're doing an unknown-owner removal for EFI recovery, we expect + * to find the full range in the rmapbt or nothing at all. If we + * don't find any rmaps overlapping either end of the range, we're + * done. Hopefully this means that the EFI creator already queued + * (and finished) a RUI to remove the rmap. + */ + if (owner == XFS_RMAP_OWN_UNKNOWN && + ltrec.rm_startblock + ltrec.rm_blockcount <= bno) { + struct xfs_rmap_irec rtrec; + + error = xfs_btree_increment(cur, 0, &i); + if (error) + goto out_error; + if (i == 0) + goto out_done; + error = xfs_rmap_get_rec(cur, &rtrec, &i); + if (error) + goto out_error; + XFS_WANT_CORRUPTED_GOTO(mp, i == 1, out_error); + if (rtrec.rm_startblock >= bno + len) + goto out_done; + } + /* Make sure the unwritten flag matches. */ XFS_WANT_CORRUPTED_GOTO(mp, (flags & XFS_RMAP_UNWRITTEN) == (ltrec.rm_flags & XFS_RMAP_UNWRITTEN), out_error); @@ -664,6 +688,7 @@ xfs_rmap_map( flags |= XFS_RMAP_UNWRITTEN; trace_xfs_rmap_map(mp, cur->bc_private.a.agno, bno, len, unwritten, oinfo); + ASSERT(!xfs_rmap_should_skip_owner_update(oinfo)); /* * For the initial lookup, look for an exact match or the left-adjacent |