| Message ID | 20210326113312.983-1-chandanrlinux@gmail.com (mailing list archive) |
|---|---|
| State | Accepted, archived |
| Headers | show |
| Series | xfs: scrub: Remove incorrect check executed on block format directories | expand |
On Fri, Mar 26, 2021 at 05:03:12PM +0530, Chandan Babu R wrote: > A directory with one directory block which in turns consists of two or more fs > blocks is incorrectly flagged as corrupt by scrub since it assumes that > "Block" format directories have a data fork single extent spanning the file > offset range of [0, Dir block size - 1]. > > This commit fixes the bug by removing the incorrect check. It took me a minute to figure out that this isn't merely removing a check that triggered somewhere; the check is incorrect /and/ redundant because xfs_dir2_isblock sets is_block based on what it finds in the iext tree, so it makes no sense to check that result against the iext tree at all. Reviewed-by: Darrick J. Wong <djwong@kernel.org> --D > Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com> > --- > fs/xfs/scrub/dir.c | 9 --------- > 1 file changed, 9 deletions(-) > > diff --git a/fs/xfs/scrub/dir.c b/fs/xfs/scrub/dir.c > index 178b3455a170..3ec6290c78bb 100644 > --- a/fs/xfs/scrub/dir.c > +++ b/fs/xfs/scrub/dir.c > @@ -694,15 +694,6 @@ xchk_directory_blocks( > /* Iterate all the data extents in the directory... */ > found = xfs_iext_lookup_extent(sc->ip, ifp, lblk, &icur, &got); > while (found && !(sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)) { > - /* Block directories only have a single block at offset 0. */ > - if (is_block && > - (got.br_startoff > 0 || > - got.br_blockcount != args.geo->fsbcount)) { > - xchk_fblock_set_corrupt(sc, XFS_DATA_FORK, > - got.br_startoff); > - break; > - } > - > /* No more data blocks... */ > if (got.br_startoff >= leaf_lblk) > break; > -- > 2.29.2 >
diff --git a/fs/xfs/scrub/dir.c b/fs/xfs/scrub/dir.c index 178b3455a170..3ec6290c78bb 100644 --- a/fs/xfs/scrub/dir.c +++ b/fs/xfs/scrub/dir.c @@ -694,15 +694,6 @@ xchk_directory_blocks( /* Iterate all the data extents in the directory... */ found = xfs_iext_lookup_extent(sc->ip, ifp, lblk, &icur, &got); while (found && !(sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)) { - /* Block directories only have a single block at offset 0. */ - if (is_block && - (got.br_startoff > 0 || - got.br_blockcount != args.geo->fsbcount)) { - xchk_fblock_set_corrupt(sc, XFS_DATA_FORK, - got.br_startoff); - break; - } - /* No more data blocks... */ if (got.br_startoff >= leaf_lblk) break;
A directory with one directory block which in turns consists of two or more fs blocks is incorrectly flagged as corrupt by scrub since it assumes that "Block" format directories have a data fork single extent spanning the file offset range of [0, Dir block size - 1]. This commit fixes the bug by removing the incorrect check. Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com> --- fs/xfs/scrub/dir.c | 9 --------- 1 file changed, 9 deletions(-)