From: Brian Foster <bfoster@redhat.com>
To: linux-xfs@vger.kernel.org
Subject: [PATCH 4/4] repair: remove custom dir2 sf fork verifier from phase6
Date: Wed, 15 Jul 2020 10:08:36 -0400 [thread overview]
Message-ID: <20200715140836.10197-5-bfoster@redhat.com> (raw)
In-Reply-To: <20200715140836.10197-1-bfoster@redhat.com>
The custom verifier exists to catch the case of repair setting a
dummy parent value of zero on directory inodes and temporarily
replace it with a valid inode number so the rest of the directory
verification can proceed. The custom verifier is no longer needed
now that the rootino is used as a dummy value for invalid on-disk
parent values.
Signed-off-by: Brian Foster <bfoster@redhat.com>
---
repair/phase6.c | 56 ++-----------------------------------------------
1 file changed, 2 insertions(+), 54 deletions(-)
diff --git a/repair/phase6.c b/repair/phase6.c
index beceea9a..43bcea50 100644
--- a/repair/phase6.c
+++ b/repair/phase6.c
@@ -26,58 +26,6 @@ static struct xfs_name xfs_name_dot = {(unsigned char *)".",
1,
XFS_DIR3_FT_DIR};
-/*
- * When we're checking directory inodes, we're allowed to set a directory's
- * dotdot entry to zero to signal that the parent needs to be reconnected
- * during phase 6. If we're handling a shortform directory the ifork
- * verifiers will fail, so temporarily patch out this canary so that we can
- * verify the rest of the fork and move on to fixing the dir.
- */
-static xfs_failaddr_t
-phase6_verify_dir(
- struct xfs_inode *ip)
-{
- struct xfs_mount *mp = ip->i_mount;
- struct xfs_ifork *ifp;
- struct xfs_dir2_sf_hdr *sfp;
- xfs_failaddr_t fa;
- xfs_ino_t old_parent;
- bool parent_bypass = false;
- int size;
-
- ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
- sfp = (struct xfs_dir2_sf_hdr *)ifp->if_u1.if_data;
- size = ifp->if_bytes;
-
- /*
- * If this is a shortform directory, phase4 may have set the parent
- * inode to zero to indicate that it must be fixed. Temporarily
- * set a valid parent so that the directory verifier will pass.
- */
- if (size > offsetof(struct xfs_dir2_sf_hdr, parent) &&
- size >= xfs_dir2_sf_hdr_size(sfp->i8count)) {
- old_parent = libxfs_dir2_sf_get_parent_ino(sfp);
- if (old_parent == 0) {
- libxfs_dir2_sf_put_parent_ino(sfp, mp->m_sb.sb_rootino);
- parent_bypass = true;
- }
- }
-
- fa = libxfs_default_ifork_ops.verify_dir(ip);
-
- /* Put it back. */
- if (parent_bypass)
- libxfs_dir2_sf_put_parent_ino(sfp, old_parent);
-
- return fa;
-}
-
-static struct xfs_ifork_ops phase6_ifork_ops = {
- .verify_attr = xfs_attr_shortform_verify,
- .verify_dir = phase6_verify_dir,
- .verify_symlink = xfs_symlink_shortform_verify,
-};
-
/*
* Data structures used to keep track of directories where the ".."
* entries are updated. These must be rebuilt after the initial pass
@@ -1104,7 +1052,7 @@ mv_orphanage(
(unsigned long long)ino, ++incr);
/* Orphans may not have a proper parent, so use custom ops here */
- err = -libxfs_iget(mp, NULL, ino, 0, &ino_p, &phase6_ifork_ops);
+ err = -libxfs_iget(mp, NULL, ino, 0, &ino_p, &xfs_default_ifork_ops);
if (err)
do_error(_("%d - couldn't iget disconnected inode\n"), err);
@@ -2875,7 +2823,7 @@ process_dir_inode(
ASSERT(!is_inode_refchecked(irec, ino_offset) || dotdot_update);
- error = -libxfs_iget(mp, NULL, ino, 0, &ip, &phase6_ifork_ops);
+ error = -libxfs_iget(mp, NULL, ino, 0, &ip, &xfs_default_ifork_ops);
if (error) {
if (!no_modify)
do_error(
--
2.21.3
next prev parent reply other threads:[~2020-07-15 14:08 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-15 14:08 [PATCH 0/4] xfsprogs: remove custom dir2 sf fork verifier from repair Brian Foster
2020-07-15 14:08 ` [PATCH 1/4] repair: set the in-core inode parent in phase 3 Brian Foster
2020-07-15 18:42 ` Christoph Hellwig
2020-07-21 0:57 ` Darrick J. Wong
2020-07-15 14:08 ` [PATCH 2/4] repair: don't double check dir2 sf parent in phase 4 Brian Foster
2020-07-15 18:43 ` Christoph Hellwig
2020-07-15 23:54 ` Darrick J. Wong
2020-07-16 10:39 ` Brian Foster
2020-07-21 0:55 ` Darrick J. Wong
2020-07-15 14:08 ` [PATCH 3/4] repair: use fs root ino for dummy parent value instead of zero Brian Foster
2020-07-15 18:44 ` Christoph Hellwig
2020-07-15 22:22 ` Dave Chinner
2020-07-16 10:41 ` Brian Foster
2020-07-16 22:06 ` Dave Chinner
2020-07-17 11:57 ` Brian Foster
2020-07-17 11:59 ` [PATCH v2] repair: use fs rootino " Brian Foster
2020-07-20 3:21 ` Dave Chinner
2020-07-21 0:47 ` Darrick J. Wong
2020-07-15 14:08 ` Brian Foster [this message]
2020-07-15 18:44 ` [PATCH 4/4] repair: remove custom dir2 sf fork verifier from phase6 Christoph Hellwig
2020-07-21 0:47 ` Darrick J. Wong
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