From: "Darrick J. Wong" <djwong@kernel.org>
To: djwong@kernel.org
Cc: Christoph Hellwig <hch@lst.de>,
allison.henderson@oracle.com, hch@infradead.org,
linux-xfs@vger.kernel.org, catherine.hoang@oracle.com,
hch@lst.de
Subject: [PATCH 05/17] xfs: add raw parent pointer apis to support repair
Date: Mon, 15 Apr 2024 18:37:14 -0700 [thread overview]
Message-ID: <171323029266.253068.2220619250735295856.stgit@frogsfrogsfrogs> (raw)
In-Reply-To: <171323029141.253068.12138115574003345390.stgit@frogsfrogsfrogs>
From: Darrick J. Wong <djwong@kernel.org>
Add a couple of utility functions to set or remove parent pointers from
a file. These functions will be used by repair code, hence they skip
the xattr logging that regular parent pointer updates use.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
fs/xfs/libxfs/xfs_dir2.c | 2 +
fs/xfs/libxfs/xfs_dir2.h | 2 +
fs/xfs/libxfs/xfs_parent.c | 64 ++++++++++++++++++++++++++++++++++++++++++++
fs/xfs/libxfs/xfs_parent.h | 6 ++++
4 files changed, 72 insertions(+), 2 deletions(-)
diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c
index 9da99fa20c759..7634344dc5153 100644
--- a/fs/xfs/libxfs/xfs_dir2.c
+++ b/fs/xfs/libxfs/xfs_dir2.c
@@ -434,7 +434,7 @@ int
xfs_dir_removename(
struct xfs_trans *tp,
struct xfs_inode *dp,
- struct xfs_name *name,
+ const struct xfs_name *name,
xfs_ino_t ino,
xfs_extlen_t total) /* bmap's total block count */
{
diff --git a/fs/xfs/libxfs/xfs_dir2.h b/fs/xfs/libxfs/xfs_dir2.h
index eb3a5c35025b5..b580a78bcf4fc 100644
--- a/fs/xfs/libxfs/xfs_dir2.h
+++ b/fs/xfs/libxfs/xfs_dir2.h
@@ -58,7 +58,7 @@ extern int xfs_dir_lookup(struct xfs_trans *tp, struct xfs_inode *dp,
const struct xfs_name *name, xfs_ino_t *inum,
struct xfs_name *ci_name);
extern int xfs_dir_removename(struct xfs_trans *tp, struct xfs_inode *dp,
- struct xfs_name *name, xfs_ino_t ino,
+ const struct xfs_name *name, xfs_ino_t ino,
xfs_extlen_t tot);
extern int xfs_dir_replace(struct xfs_trans *tp, struct xfs_inode *dp,
const struct xfs_name *name, xfs_ino_t inum,
diff --git a/fs/xfs/libxfs/xfs_parent.c b/fs/xfs/libxfs/xfs_parent.c
index 381fe57b9124e..04d3ef2a9f330 100644
--- a/fs/xfs/libxfs/xfs_parent.c
+++ b/fs/xfs/libxfs/xfs_parent.c
@@ -313,3 +313,67 @@ xfs_parent_lookup(
xfs_parent_da_args_init(scratch, tp, pptr, ip, ip->i_ino, parent_name);
return xfs_attr_get_ilocked(scratch);
}
+
+/* Sanity-check a parent pointer before we try to perform repairs. */
+static inline bool
+xfs_parent_sanity_check(
+ struct xfs_mount *mp,
+ const struct xfs_name *parent_name,
+ const struct xfs_parent_rec *pptr)
+{
+ if (!xfs_parent_namecheck(XFS_ATTR_PARENT, parent_name->name,
+ parent_name->len))
+ return false;
+
+ if (!xfs_parent_valuecheck(mp, pptr, sizeof(*pptr)))
+ return false;
+
+ return true;
+}
+
+
+/*
+ * Attach the parent pointer (@parent_name -> @pptr) to @ip immediately.
+ * Caller must not have a transaction or hold the ILOCK. This is for
+ * specialized repair functions only. The scratchpad need not be initialized.
+ */
+int
+xfs_parent_set(
+ struct xfs_inode *ip,
+ xfs_ino_t owner,
+ const struct xfs_name *parent_name,
+ struct xfs_parent_rec *pptr,
+ struct xfs_da_args *scratch)
+{
+ if (!xfs_parent_sanity_check(ip->i_mount, parent_name, pptr)) {
+ ASSERT(0);
+ return -EFSCORRUPTED;
+ }
+
+ memset(scratch, 0, sizeof(struct xfs_da_args));
+ xfs_parent_da_args_init(scratch, NULL, pptr, ip, owner, parent_name);
+ return xfs_attr_set(scratch, XFS_ATTRUPDATE_UPSERT, false);
+}
+
+/*
+ * Remove the parent pointer (@parent_name -> @pptr) from @ip immediately.
+ * Caller must not have a transaction or hold the ILOCK. This is for
+ * specialized repair functions only. The scratchpad need not be initialized.
+ */
+int
+xfs_parent_unset(
+ struct xfs_inode *ip,
+ xfs_ino_t owner,
+ const struct xfs_name *parent_name,
+ struct xfs_parent_rec *pptr,
+ struct xfs_da_args *scratch)
+{
+ if (!xfs_parent_sanity_check(ip->i_mount, parent_name, pptr)) {
+ ASSERT(0);
+ return -EFSCORRUPTED;
+ }
+
+ memset(scratch, 0, sizeof(struct xfs_da_args));
+ xfs_parent_da_args_init(scratch, NULL, pptr, ip, owner, parent_name);
+ return xfs_attr_set(scratch, XFS_ATTRUPDATE_REMOVE, false);
+}
diff --git a/fs/xfs/libxfs/xfs_parent.h b/fs/xfs/libxfs/xfs_parent.h
index 97788582321a6..b8036527cdc73 100644
--- a/fs/xfs/libxfs/xfs_parent.h
+++ b/fs/xfs/libxfs/xfs_parent.h
@@ -100,5 +100,11 @@ int xfs_parent_from_attr(struct xfs_mount *mp, unsigned int attr_flags,
int xfs_parent_lookup(struct xfs_trans *tp, struct xfs_inode *ip,
const struct xfs_name *name, struct xfs_parent_rec *pptr,
struct xfs_da_args *scratch);
+int xfs_parent_set(struct xfs_inode *ip, xfs_ino_t owner,
+ const struct xfs_name *name, struct xfs_parent_rec *pptr,
+ struct xfs_da_args *scratch);
+int xfs_parent_unset(struct xfs_inode *ip, xfs_ino_t owner,
+ const struct xfs_name *name, struct xfs_parent_rec *pptr,
+ struct xfs_da_args *scratch);
#endif /* __XFS_PARENT_H__ */
next prev parent reply other threads:[~2024-04-16 1:37 UTC|newest]
Thread overview: 135+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-16 1:16 [PATCHBOMB v13.2] xfs: directory parent pointers Darrick J. Wong
2024-04-16 1:19 ` [PATCHSET v13.2 1/7] xfs: shrink struct xfs_da_args Darrick J. Wong
2024-04-16 1:21 ` [PATCH 1/5] xfs: remove XFS_DA_OP_REMOVE Darrick J. Wong
2024-04-16 1:21 ` [PATCH 2/5] xfs: remove XFS_DA_OP_NOTIME Darrick J. Wong
2024-04-16 1:21 ` [PATCH 3/5] xfs: remove xfs_da_args.attr_flags Darrick J. Wong
2024-04-16 5:07 ` Christoph Hellwig
2024-04-16 1:22 ` [PATCH 4/5] xfs: make attr removal an explicit operation Darrick J. Wong
2024-04-16 5:12 ` Christoph Hellwig
2024-04-16 17:31 ` Darrick J. Wong
2024-04-16 1:22 ` [PATCH 5/5] xfs: rearrange xfs_da_args a bit to use less space Darrick J. Wong
2024-04-16 5:13 ` Christoph Hellwig
2024-04-16 1:19 ` [PATCHSET v13.2 2/7] xfs: improve extended attribute validation Darrick J. Wong
2024-04-16 1:22 ` [PATCH 01/14] xfs: attr fork iext must be loaded before calling xfs_attr_is_leaf Darrick J. Wong
2024-04-16 1:22 ` [PATCH 02/14] xfs: require XFS_SB_FEAT_INCOMPAT_LOG_XATTRS for attr log intent item recovery Darrick J. Wong
2024-04-16 1:23 ` [PATCH 03/14] xfs: use an XFS_OPSTATE_ flag for detecting if logged xattrs are available Darrick J. Wong
2024-04-16 1:23 ` [PATCH 04/14] xfs: check opcode and iovec count match in xlog_recover_attri_commit_pass2 Darrick J. Wong
2024-04-16 1:23 ` [PATCH 05/14] xfs: fix missing check for invalid attr flags Darrick J. Wong
2024-04-16 1:23 ` [PATCH 06/14] xfs: check shortform attr entry flags specifically Darrick J. Wong
2024-04-16 5:13 ` Christoph Hellwig
2024-04-16 1:24 ` [PATCH 07/14] xfs: restructure xfs_attr_complete_op a bit Darrick J. Wong
2024-04-16 1:24 ` [PATCH 08/14] xfs: use helpers to extract xattr op from opflags Darrick J. Wong
2024-04-16 1:24 ` [PATCH 09/14] xfs: validate recovered name buffers when recovering xattr items Darrick J. Wong
2024-04-16 1:24 ` [PATCH 10/14] xfs: always set args->value in xfs_attri_item_recover Darrick J. Wong
2024-04-16 1:25 ` [PATCH 11/14] xfs: use local variables for name and value length in _attri_commit_pass2 Darrick J. Wong
2024-04-16 1:25 ` [PATCH 12/14] xfs: refactor name/length checks in xfs_attri_validate Darrick J. Wong
2024-04-16 1:25 ` [PATCH 13/14] xfs: refactor name/value iovec validation in xlog_recover_attri_commit_pass2 Darrick J. Wong
2024-04-16 5:15 ` Christoph Hellwig
2024-04-16 1:26 ` [PATCH 14/14] xfs: enforce one namespace per attribute Darrick J. Wong
2024-04-16 1:20 ` [PATCHSET v13.2 3/7] xfs: Parent Pointers Darrick J. Wong
2024-04-16 1:26 ` [PATCH 01/31] xfs: rearrange xfs_attr_match parameters Darrick J. Wong
2024-04-16 1:26 ` [PATCH 02/31] xfs: check the flags earlier in xfs_attr_match Darrick J. Wong
2024-04-16 1:26 ` [PATCH 03/31] xfs: move xfs_attr_defer_add to xfs_attr_item.c Darrick J. Wong
2024-04-16 1:27 ` [PATCH 04/31] xfs: create a separate hashname function for extended attributes Darrick J. Wong
2024-04-16 1:27 ` [PATCH 05/31] xfs: add parent pointer support to attribute code Darrick J. Wong
2024-04-16 1:27 ` [PATCH 06/31] xfs: define parent pointer ondisk extended attribute format Darrick J. Wong
2024-04-16 1:27 ` [PATCH 07/31] xfs: allow xattr matching on name and value for parent pointers Darrick J. Wong
2024-04-16 1:28 ` [PATCH 08/31] xfs: refactor xfs_is_using_logged_xattrs checks in attr item recovery Darrick J. Wong
2024-04-16 5:15 ` Christoph Hellwig
2024-04-16 1:28 ` [PATCH 09/31] xfs: create attr log item opcodes and formats for parent pointers Darrick J. Wong
2024-04-16 5:16 ` Christoph Hellwig
2024-04-17 2:52 ` [PATCH v13.2.1 " Darrick J. Wong
2024-04-16 1:28 ` [PATCH 10/31] xfs: record inode generation in xattr update log intent items Darrick J. Wong
2024-04-16 5:17 ` Christoph Hellwig
2024-04-16 1:28 ` [PATCH 11/31] xfs: Expose init_xattrs in xfs_create_tmpfile Darrick J. Wong
2024-04-16 1:29 ` [PATCH 12/31] xfs: add parent pointer validator functions Darrick J. Wong
2024-04-16 1:29 ` [PATCH 13/31] xfs: extend transaction reservations for parent attributes Darrick J. Wong
2024-04-16 1:29 ` [PATCH 14/31] xfs: create a hashname function for parent pointers Darrick J. Wong
2024-04-16 1:29 ` [PATCH 15/31] xfs: parent pointer attribute creation Darrick J. Wong
2024-04-16 1:30 ` [PATCH 16/31] xfs: add parent attributes to link Darrick J. Wong
2024-04-16 1:30 ` [PATCH 17/31] xfs: add parent attributes to symlink Darrick J. Wong
2024-04-16 1:30 ` [PATCH 18/31] xfs: remove parent pointers in unlink Darrick J. Wong
2024-04-16 1:30 ` [PATCH 19/31] xfs: Add parent pointers to rename Darrick J. Wong
2024-04-16 1:31 ` [PATCH 20/31] xfs: Add parent pointers to xfs_cross_rename Darrick J. Wong
2024-04-16 1:31 ` [PATCH 21/31] xfs: don't return XFS_ATTR_PARENT attributes via listxattr Darrick J. Wong
2024-04-16 5:17 ` Christoph Hellwig
2024-04-16 1:31 ` [PATCH 22/31] xfs: pass the attr value to put_listent when possible Darrick J. Wong
2024-04-16 1:32 ` [PATCH 23/31] xfs: move handle ioctl code to xfs_handle.c Darrick J. Wong
2024-04-16 1:32 ` [PATCH 24/31] xfs: split out handle management helpers a bit Darrick J. Wong
2024-04-16 1:32 ` [PATCH 25/31] xfs: actually check the fsid of a handle Darrick J. Wong
2024-04-16 5:19 ` Christoph Hellwig
2024-04-16 17:44 ` Darrick J. Wong
2024-04-16 1:32 ` [PATCH 26/31] xfs: add parent pointer ioctls Darrick J. Wong
2024-04-16 5:21 ` Christoph Hellwig
2024-04-16 17:59 ` Darrick J. Wong
2024-04-16 18:08 ` Christoph Hellwig
2024-04-16 18:12 ` Darrick J. Wong
2024-04-16 18:50 ` Christoph Hellwig
2024-04-17 2:49 ` [PATCH v13.2.1 " Darrick J. Wong
2024-04-17 22:25 ` Darrick J. Wong
2024-04-18 4:21 ` Christoph Hellwig
2024-04-18 16:49 ` Darrick J. Wong
2024-04-16 1:33 ` [PATCH 27/31] xfs: don't remove the attr fork when parent pointers are enabled Darrick J. Wong
2024-04-16 1:33 ` [PATCH 28/31] xfs: add a incompat feature bit for parent pointers Darrick J. Wong
2024-04-16 1:33 ` [PATCH 29/31] xfs: fix unit conversion error in xfs_log_calc_max_attrsetm_res Darrick J. Wong
2024-04-16 1:33 ` [PATCH 30/31] xfs: drop compatibility minimum log size computations for reflink Darrick J. Wong
2024-04-16 1:34 ` [PATCH 31/31] xfs: enable parent pointers Darrick J. Wong
2024-04-16 1:20 ` [PATCHSET v13.2 4/7] xfs: scrubbing for " Darrick J. Wong
2024-04-16 1:34 ` [PATCH 1/7] xfs: revert commit 44af6c7e59b12 Darrick J. Wong
2024-04-16 5:23 ` Christoph Hellwig
2024-04-16 1:34 ` [PATCH 2/7] xfs: check dirents have parent pointers Darrick J. Wong
2024-04-16 1:34 ` [PATCH 3/7] xfs: deferred scrub of dirents Darrick J. Wong
2024-04-16 1:35 ` [PATCH 4/7] xfs: scrub parent pointers Darrick J. Wong
2024-04-16 1:35 ` [PATCH 5/7] xfs: deferred scrub of " Darrick J. Wong
2024-04-16 1:35 ` [PATCH 6/7] xfs: walk directory parent pointers to determine backref count Darrick J. Wong
2024-04-16 1:35 ` [PATCH 7/7] xfs: check parent pointer xattrs when scrubbing Darrick J. Wong
2024-04-16 1:20 ` [PATCHSET v13.2 5/7] xfs: online repair for parent pointers Darrick J. Wong
2024-04-16 1:36 ` [PATCH 01/17] xfs: remove some boilerplate from xfs_attr_set Darrick J. Wong
2024-04-16 5:26 ` Christoph Hellwig
2024-04-16 18:15 ` Darrick J. Wong
2024-04-16 1:36 ` [PATCH 02/17] xfs: make the reserved block permission flag explicit in xfs_attr_set Darrick J. Wong
2024-04-16 5:26 ` Christoph Hellwig
2024-04-16 1:36 ` [PATCH 03/17] xfs: use xfs_attr_defer_parent for calling xfs_attr_set on pptrs Darrick J. Wong
2024-04-16 5:29 ` Christoph Hellwig
2024-04-16 16:05 ` Darrick J. Wong
2024-04-16 16:28 ` Christoph Hellwig
2024-04-16 18:41 ` Darrick J. Wong
2024-04-16 18:51 ` Christoph Hellwig
2024-04-17 2:54 ` Darrick J. Wong
2024-04-17 5:00 ` Christoph Hellwig
2024-04-16 1:36 ` [PATCH 04/17] xfs: salvage parent pointers when rebuilding xattr structures Darrick J. Wong
2024-04-16 1:37 ` Darrick J. Wong [this message]
2024-04-16 1:37 ` [PATCH 06/17] xfs: repair directories by scanning directory parent pointers Darrick J. Wong
2024-04-16 1:37 ` [PATCH 07/17] xfs: implement live updates for directory repairs Darrick J. Wong
2024-04-16 1:38 ` [PATCH 08/17] xfs: replay unlocked parent pointer updates that accrue during xattr repair Darrick J. Wong
2024-04-16 1:38 ` [PATCH 09/17] xfs: repair directory parent pointers by scanning for dirents Darrick J. Wong
2024-04-16 1:38 ` [PATCH 10/17] xfs: implement live updates for parent pointer repairs Darrick J. Wong
2024-04-16 1:38 ` [PATCH 11/17] xfs: remove pointless unlocked assertion Darrick J. Wong
2024-04-16 1:39 ` [PATCH 12/17] xfs: split xfs_bmap_add_attrfork into two pieces Darrick J. Wong
2024-04-16 1:39 ` [PATCH 13/17] xfs: add a per-leaf block callback to xchk_xattr_walk Darrick J. Wong
2024-04-16 1:39 ` [PATCH 14/17] xfs: actually rebuild the parent pointer xattrs Darrick J. Wong
2024-04-16 1:39 ` [PATCH 15/17] xfs: adapt the orphanage code to handle parent pointers Darrick J. Wong
2024-04-16 1:40 ` [PATCH 16/17] xfs: repair link count of nondirectories after rebuilding " Darrick J. Wong
2024-04-16 1:40 ` [PATCH 17/17] xfs: inode repair should ensure there's an attr fork to store " Darrick J. Wong
2024-04-16 1:20 ` [PATCHSET v13.2 6/7] xfs: detect and correct directory tree problems Darrick J. Wong
2024-04-16 1:40 ` [PATCH 1/4] xfs: teach online scrub to find directory tree structure problems Darrick J. Wong
2024-04-16 1:40 ` [PATCH 2/4] xfs: invalidate dirloop scrub path data when concurrent updates happen Darrick J. Wong
2024-04-16 1:41 ` [PATCH 3/4] xfs: report directory tree corruption in the health information Darrick J. Wong
2024-04-16 1:41 ` [PATCH 4/4] xfs: fix corruptions in the directory tree Darrick J. Wong
2024-04-16 1:21 ` [PATCHSET v13.2 7/7] xfs: vectorize scrub kernel calls Darrick J. Wong
2024-04-16 1:41 ` [PATCH 1/4] xfs: reduce the rate of cond_resched calls inside scrub Darrick J. Wong
2024-04-16 1:41 ` [PATCH 2/4] xfs: move xfs_ioc_scrub_metadata to scrub.c Darrick J. Wong
2024-04-16 5:31 ` Christoph Hellwig
2024-04-16 1:42 ` [PATCH 3/4] xfs: introduce vectored scrub mode Darrick J. Wong
2024-04-16 5:33 ` Christoph Hellwig
2024-04-16 18:46 ` Darrick J. Wong
2024-04-16 18:56 ` Christoph Hellwig
2024-04-16 19:06 ` Darrick J. Wong
2024-04-17 2:55 ` [PATCH v13.2.1 " Darrick J. Wong
2024-04-16 1:42 ` [PATCH 4/4] xfs: only iget the file once when doing vectored scrub-by-handle Darrick J. Wong
2024-04-16 5:35 ` Christoph Hellwig
2024-04-16 22:31 ` Darrick J. Wong
2024-04-16 22:51 ` Darrick J. Wong
2024-04-17 5:02 ` Christoph Hellwig
2024-04-17 5:01 ` Christoph Hellwig
-- strict thread matches above, loose matches on Subject: below --
2023-05-26 2:01 [PATCHSET v12.0 00/17] xfs: fsck for parent pointers Darrick J. Wong
2023-05-26 2:15 ` [PATCH 05/17] xfs: add raw parent pointer apis to support repair Darrick J. Wong
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=171323029266.253068.2220619250735295856.stgit@frogsfrogsfrogs \
--to=djwong@kernel.org \
--cc=allison.henderson@oracle.com \
--cc=catherine.hoang@oracle.com \
--cc=hch@infradead.org \
--cc=hch@lst.de \
--cc=linux-xfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).