bcachefs: Use __bch2_trans_do() in a few more places

Minor cleanup, it was being open coded.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

fs/bcachefs/fs.c

@@ -416,16 +416,12 @@ static int __bch2_link(struct bch_fs *c,
 	mutex_lock(&inode->ei_update_lock);
 	bch2_trans_init(&trans, c, 4, 1024);
 
-	do {
-		bch2_trans_begin(&trans);
-		ret   = bch2_link_trans(&trans,
+	ret = __bch2_trans_do(&trans, NULL, &inode->ei_journal_seq,
+			      BTREE_INSERT_NOUNLOCK,
+			bch2_link_trans(&trans,
 					dir->v.i_ino,
 					inode->v.i_ino, &dir_u, &inode_u,
-					&dentry->d_name) ?:
-			bch2_trans_commit(&trans, NULL,
-					&inode->ei_journal_seq,
-					BTREE_INSERT_NOUNLOCK);
-	} while (ret == -EINTR);
+					&dentry->d_name));
 
 	if (likely(!ret)) {
 		BUG_ON(inode_u.bi_inum != inode->v.i_ino);
@@ -472,17 +468,12 @@ static int bch2_unlink(struct inode *vdir, struct dentry *dentry)
 	bch2_lock_inodes(INODE_UPDATE_LOCK, dir, inode);
 	bch2_trans_init(&trans, c, 4, 1024);
 
-	do {
-		bch2_trans_begin(&trans);
-
-		ret   = bch2_unlink_trans(&trans,
+	ret = __bch2_trans_do(&trans, NULL, &dir->ei_journal_seq,
+			      BTREE_INSERT_NOUNLOCK|
+			      BTREE_INSERT_NOFAIL,
+			bch2_unlink_trans(&trans,
 					  dir->v.i_ino, &dir_u,
-					  &inode_u, &dentry->d_name) ?:
-			bch2_trans_commit(&trans, NULL,
-					  &dir->ei_journal_seq,
-					  BTREE_INSERT_NOUNLOCK|
-					  BTREE_INSERT_NOFAIL);
-	} while (ret == -EINTR);
+					  &inode_u, &dentry->d_name));
 
 	if (likely(!ret)) {
 		BUG_ON(inode_u.bi_inum != inode->v.i_ino);
@@ -599,21 +590,16 @@ static int bch2_rename2(struct mnt_idmap *idmap,
 			goto err;
 	}
 
-retry:
-	bch2_trans_begin(&trans);
-	ret   = bch2_rename_trans(&trans,
-				  src_dir->v.i_ino, &src_dir_u,
-				  dst_dir->v.i_ino, &dst_dir_u,
-				  &src_inode_u,
-				  &dst_inode_u,
-				  &src_dentry->d_name,
-				  &dst_dentry->d_name,
-				  mode) ?:
-		bch2_trans_commit(&trans, NULL,
-				  &journal_seq,
-				  BTREE_INSERT_NOUNLOCK);
-	if (ret == -EINTR)
-		goto retry;
+	ret = __bch2_trans_do(&trans, NULL, &journal_seq,
+			      BTREE_INSERT_NOUNLOCK,
+			bch2_rename_trans(&trans,
+					  src_dir->v.i_ino, &src_dir_u,
+					  dst_dir->v.i_ino, &dst_dir_u,
+					  &src_inode_u,
+					  &dst_inode_u,
+					  &src_dentry->d_name,
+					  &dst_dentry->d_name,
+					  mode));
 	if (unlikely(ret))
 		goto err;