From: Darrick J. Wong <djwong@xxxxxxxxxx>
Use the nlink hooks to keep our tempfile's parent pointers up to date.
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
libxfs/xfs_parent.c | 25 +++++++++++++++++++++++++
libxfs/xfs_parent.h | 4 ++++
2 files changed, 29 insertions(+)
diff --git a/libxfs/xfs_parent.c b/libxfs/xfs_parent.c
index 3ce30860..a7c5974c 100644
--- a/libxfs/xfs_parent.c
+++ b/libxfs/xfs_parent.c
@@ -364,3 +364,28 @@ xfs_parent_set(
return xfs_attr_set(&scr->args);
}
+
+/*
+ * Remove the parent pointer (@rec -> @name) from @ip immediately. Caller must
+ * not have a transaction or hold the ILOCK. The update will not use logged
+ * xattrs. This is for specialized repair functions only. The scratchpad need
+ * not be initialized.
+ */
+int
+xfs_parent_unset(
+ struct xfs_inode *ip,
+ const struct xfs_parent_name_irec *pptr,
+ struct xfs_parent_scratch *scr)
+{
+ xfs_parent_irec_to_disk(&scr->rec, NULL, NULL, pptr);
+
+ memset(&scr->args, 0, sizeof(struct xfs_da_args));
+ scr->args.attr_filter = XFS_ATTR_PARENT;
+ scr->args.dp = ip;
+ scr->args.geo = ip->i_mount->m_attr_geo;
+ scr->args.name = (const unsigned char *)&scr->rec;
+ scr->args.namelen = sizeof(struct xfs_parent_name_rec);
+ scr->args.whichfork = XFS_ATTR_FORK;
+
+ return xfs_attr_set(&scr->args);
+}
diff --git a/libxfs/xfs_parent.h b/libxfs/xfs_parent.h
index effbccdf..a7fc621b 100644
--- a/libxfs/xfs_parent.h
+++ b/libxfs/xfs_parent.h
@@ -117,4 +117,8 @@ int xfs_parent_set(struct xfs_inode *ip,
const struct xfs_parent_name_irec *pptr,
struct xfs_parent_scratch *scratch);
+int xfs_parent_unset(struct xfs_inode *ip,
+ const struct xfs_parent_name_irec *rec,
+ struct xfs_parent_scratch *scratch);
+
#endif /* __XFS_PARENT_H__ */
