switch btrfs_ioctl_snap_create_transid() to fget_light() (ecd18815) · Commits · 戴 / test

fs/btrfs/ioctl.c

+7 −7

Original line number	Diff line number	Diff line
		@@ -1422,7 +1422,8 @@ static noinline int btrfs_ioctl_snap_create_transid(struct file *file,
		NULL, transid, readonly, inherit);
		} else {
		struct inode *src_inode;
		src_file = fget(fd);
		int fput_needed;
		src_file = fget_light(fd, &fput_needed);
		if (!src_file) {
		ret = -EINVAL;
		goto out_drop_write;
		@@ -1433,13 +1434,12 @@ static noinline int btrfs_ioctl_snap_create_transid(struct file *file,
		printk(KERN_INFO "btrfs: Snapshot src from "
		"another FS\n");
		ret = -EINVAL;
		fput(src_file);
		goto out_drop_write;
		}
		} else {
		ret = btrfs_mksubvol(&file->f_path, name, namelen,
		BTRFS_I(src_inode)->root,
		transid, readonly, inherit);
		fput(src_file);
		}
		fput_light(src_file, fput_needed);
		}
		out_drop_write:
		mnt_drop_write_file(file);