diff mbox series

[v2,10/16] btrfs: don't pass parent objectid to btrfs_new_inode() explicitly

Message ID 75839bab668df56ad486a103403d47becc39dc1d.1646875648.git.osandov@fb.com (mailing list archive)
State New, archived
Headers show
Series btrfs: inode creation cleanups and fixes | expand

Commit Message

Omar Sandoval March 10, 2022, 1:31 a.m. UTC 
From: Omar Sandoval <osandov@fb.com>

For everything other than a subvolume root inode, we get the parent
objectid from the parent directory. For the subvolume root inode, the
parent objectid is the same as the inode's objectid. We can find this
within btrfs_new_inode() instead of passing it.

Reviewed-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
Signed-off-by: Omar Sandoval <osandov@fb.com>
---
 fs/btrfs/inode.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)
diff mbox series

Patch

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index a9dabe9e5500..9c845c67421a 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6095,8 +6095,7 @@  static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
 				     struct user_namespace *mnt_userns,
 				     struct inode *dir,
 				     const char *name, int name_len,
-				     u64 ref_objectid, u64 objectid,
-				     umode_t mode, u64 *index)
+				     u64 objectid, umode_t mode, u64 *index)
 {
 	struct btrfs_fs_info *fs_info = root->fs_info;
 	struct inode *inode;
@@ -6182,7 +6181,10 @@  static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
 		 */
 		key[1].objectid = objectid;
 		key[1].type = BTRFS_INODE_REF_KEY;
-		key[1].offset = ref_objectid;
+		if (dir)
+			key[1].offset = btrfs_ino(BTRFS_I(dir));
+		else
+			key[1].offset = objectid;
 
 		sizes[1] = name_len + sizeof(*ref);
 	}
@@ -6380,7 +6382,7 @@  static int btrfs_mknod(struct user_namespace *mnt_userns, struct inode *dir,
 
 	inode = btrfs_new_inode(trans, root, mnt_userns, dir,
 			dentry->d_name.name, dentry->d_name.len,
-			btrfs_ino(BTRFS_I(dir)), objectid, mode, &index);
+			objectid, mode, &index);
 	if (IS_ERR(inode)) {
 		err = PTR_ERR(inode);
 		inode = NULL;
@@ -6444,7 +6446,7 @@  static int btrfs_create(struct user_namespace *mnt_userns, struct inode *dir,
 
 	inode = btrfs_new_inode(trans, root, mnt_userns, dir,
 			dentry->d_name.name, dentry->d_name.len,
-			btrfs_ino(BTRFS_I(dir)), objectid, mode, &index);
+			objectid, mode, &index);
 	if (IS_ERR(inode)) {
 		err = PTR_ERR(inode);
 		inode = NULL;
@@ -6589,7 +6591,7 @@  static int btrfs_mkdir(struct user_namespace *mnt_userns, struct inode *dir,
 
 	inode = btrfs_new_inode(trans, root, mnt_userns, dir,
 			dentry->d_name.name, dentry->d_name.len,
-			btrfs_ino(BTRFS_I(dir)), objectid,
+			objectid,
 			S_IFDIR | mode, &index);
 	if (IS_ERR(inode)) {
 		err = PTR_ERR(inode);
@@ -8776,7 +8778,7 @@  int btrfs_create_subvol_root(struct btrfs_trans_handle *trans,
 		return err;
 
 	inode = btrfs_new_inode(trans, new_root, mnt_userns, NULL, "..", 2,
-				ino, ino,
+				ino,
 				S_IFDIR | (~current_umask() & S_IRWXUGO),
 				&index);
 	if (IS_ERR(inode))
@@ -9289,7 +9291,6 @@  static int btrfs_whiteout_for_rename(struct btrfs_trans_handle *trans,
 	inode = btrfs_new_inode(trans, root, mnt_userns, dir,
 				dentry->d_name.name,
 				dentry->d_name.len,
-				btrfs_ino(BTRFS_I(dir)),
 				objectid,
 				S_IFCHR | WHITEOUT_MODE,
 				&index);
@@ -9783,7 +9784,7 @@  static int btrfs_symlink(struct user_namespace *mnt_userns, struct inode *dir,
 
 	inode = btrfs_new_inode(trans, root, mnt_userns, dir,
 				dentry->d_name.name, dentry->d_name.len,
-				btrfs_ino(BTRFS_I(dir)), objectid,
+				objectid,
 				S_IFLNK | S_IRWXUGO, &index);
 	if (IS_ERR(inode)) {
 		err = PTR_ERR(inode);
@@ -10134,7 +10135,7 @@  static int btrfs_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
 		goto out;
 
 	inode = btrfs_new_inode(trans, root, mnt_userns, dir, NULL, 0,
-			btrfs_ino(BTRFS_I(dir)), objectid, mode, &index);
+			objectid, mode, &index);
 	if (IS_ERR(inode)) {
 		ret = PTR_ERR(inode);
 		inode = NULL;