[064/115] xfs: add parent attributes to link

Commit Message

Darrick J. Wong July 30, 2024, 12:40 a.m. UTC

From: Allison Henderson <[e-mail]>

Source kernel commit: f1097be220fa938de5114db57a1ddb5de2bf6046

This patch modifies xfs_link to add a parent pointer to the inode.

Signed-off-by: Dave Chinner <[e-mail]>
Signed-off-by: Allison Henderson <[e-mail]>
Reviewed-by: Darrick J. Wong <[e-mail]>
[djwong: minor rebase fixes]
Signed-off-by: Darrick J. Wong <[e-mail]>
Reviewed-by: Christoph Hellwig <[e-mail]>
---
 libxfs/xfs_trans_space.c |   14 ++++++++++++++
 libxfs/xfs_trans_space.h |    3 +--
 2 files changed, 15 insertions(+), 2 deletions(-)

Patch

diff --git a/libxfs/xfs_trans_space.c b/libxfs/xfs_trans_space.c
index 3408e700f..039bbd91e 100644
--- a/libxfs/xfs_trans_space.c
+++ b/libxfs/xfs_trans_space.c
@@ -50,3 +50,17 @@  xfs_mkdir_space_res(
 {
 	return xfs_create_space_res(mp, namelen);
 }
+
+unsigned int
+xfs_link_space_res(
+	struct xfs_mount	*mp,
+	unsigned int		namelen)
+{
+	unsigned int		ret;
+
+	ret = XFS_DIRENTER_SPACE_RES(mp, namelen);
+	if (xfs_has_parent(mp))
+		ret += xfs_parent_calc_space_res(mp, namelen);
+
+	return ret;
+}
diff --git a/libxfs/xfs_trans_space.h b/libxfs/xfs_trans_space.h
index 6cda87153..553963400 100644
--- a/libxfs/xfs_trans_space.h
+++ b/libxfs/xfs_trans_space.h
@@ -86,8 +86,6 @@ 
 	(2 * (mp)->m_alloc_maxlevels)
 #define	XFS_GROWFSRT_SPACE_RES(mp,b)	\
 	((b) + XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK))
-#define	XFS_LINK_SPACE_RES(mp,nl)	\
-	XFS_DIRENTER_SPACE_RES(mp,nl)
 #define	XFS_QM_DQALLOC_SPACE_RES(mp)	\
 	(XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + \
 	 XFS_DQUOT_CLUSTER_SIZE_FSB)
@@ -107,5 +105,6 @@  unsigned int xfs_parent_calc_space_res(struct xfs_mount *mp,
 
 unsigned int xfs_create_space_res(struct xfs_mount *mp, unsigned int namelen);
 unsigned int xfs_mkdir_space_res(struct xfs_mount *mp, unsigned int namelen);
+unsigned int xfs_link_space_res(struct xfs_mount *mp, unsigned int namelen);
 
 #endif	/* __XFS_TRANS_SPACE_H__ */