[RFC PATCH 12/13] Add parent pointers to rename

Allison Henderson
2017-08-10T01:43:55Z

:100644 100644 f5d0d3d... bd99ae2... M fs/xfs/libxfs/xfs_dir2.c
:100644 100644 0654ad8b.. 2bdade2... M fs/xfs/xfs_inode.c
fs/xfs/libxfs/xfs_dir2.c | 6 ++++--
fs/xfs/xfs_inode.c | 26 ++++++++++++++++++++------
2 files changed, 24 insertions(+), 8 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c
index f5d0d3d..bd99ae2 100644
--- a/fs/xfs/libxfs/xfs_dir2.c
+++ b/fs/xfs/libxfs/xfs_dir2.c
@@ -324,10 +324,11 @@ xfs_dir_createname(
else
rval = xfs_dir2_node_addname(args);

+out_free:
/* return the location that this entry was place in the parent inode */
if (offset)
*offset = args->offset;
-out_free:
+
kmem_free(args);
return rval;
}
@@ -496,9 +497,10 @@ xfs_dir_removename(
rval = xfs_dir2_leaf_removename(args);
else
rval = xfs_dir2_node_removename(args);
+out_free:
if (offset)
*offset = args->offset;
-out_free:
+
kmem_free(args);
return rval;
}
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 0654ad8b..2bdade2 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -2971,6 +2971,8 @@ xfs_rename(
bool src_is_directory = S_ISDIR(VFS_I(src_ip)->i_mode);
int spaceres;
int error;
+ xfs_dir2_dataptr_t new_diroffset;
+ xfs_dir2_dataptr_t old_diroffset;

trace_xfs_rename(src_dp, target_dp, src_name, target_name);

@@ -3073,13 +3075,12 @@ xfs_rename(
*/
error = xfs_dir_createname(tp, target_dp, target_name,
src_ip->i_ino, &first_block, &dfops,
- spaceres, NULL);
+ spaceres, &new_diroffset);
if (error)
goto out_bmap_cancel;

xfs_trans_ichgtime(tp, target_dp,
XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
-
if (new_parent && src_is_directory) {
error = xfs_bumplink(tp, target_dp);
if (error)
@@ -3113,7 +3114,7 @@ xfs_rename(
*/
error = xfs_dir_replace(tp, target_dp, target_name,
src_ip->i_ino, &first_block, &dfops,
- spaceres, NULL);
+ spaceres, &new_diroffset);
if (error)
goto out_bmap_cancel;

@@ -3148,7 +3149,7 @@ xfs_rename(
*/
error = xfs_dir_replace(tp, src_ip, &xfs_name_dotdot,
target_dp->i_ino, &first_block, &dfops,
- spaceres, NULL);
+ spaceres, &new_diroffset);
ASSERT(error != -EEXIST);
if (error)
goto out_bmap_cancel;
@@ -3187,11 +3188,12 @@ xfs_rename(
*/
if (wip) {
error = xfs_dir_replace(tp, src_dp, src_name, wip->i_ino,
- &first_block, &dfops, spaceres, NULL);
+ &first_block, &dfops, spaceres,
+ &old_diroffset);
} else
error = xfs_dir_removename(tp, src_dp, src_name, src_ip->i_ino,
&first_block, &dfops, spaceres,
- NULL);
+ &old_diroffset);
if (error)
goto out_bmap_cancel;

@@ -3221,6 +3223,18 @@ xfs_rename(
VFS_I(wip)->i_state &= ~I_LINKABLE;
}

+ if (new_parent && xfs_sb_version_hasparent(&mp->m_sb)) {
+ error = xfs_parent_add(tp, target_dp, src_ip, target_name,
+ new_diroffset, &dfops, &first_block);
+ if (error)
+ goto out_bmap_cancel;
+
+ error = xfs_parent_remove(tp, src_dp, src_ip,
+ old_diroffset, &dfops, &first_block);
+ if (error)
+ goto out_bmap_cancel;
+ }
+
xfs_trans_ichgtime(tp, src_dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
xfs_trans_log_inode(tp, src_dp, XFS_ILOG_CORE);
if (new_parent)
--
2.7.4