Re: [PATCH V2 7/7] fsverity: Remove filesystem specific build config option

Eric Biggers
2018-12-05T00:08:35Z

Hi Chandan,

On Tue, Dec 04, 2018 at 03:26:50PM +0530, Chandan Rajendra wrote:
> In order to have a common code base for fsverity "post read" processing
> for all filesystems which support fsverity, this commit removes
> filesystem specific build config option (e.g. CONFIG_EXT4_FS_VERITY)
> and replaces it with a build option (i.e. CONFIG_FS_VERITY) whose
> value affects all the filesystems making use of fsverity.
>
> Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
> ---
> Documentation/filesystems/fsverity.rst | 4 ++--
> fs/ext4/Kconfig | 20 --------------------
> fs/ext4/ext4.h | 2 --
> fs/ext4/readpage.c | 4 ++--
> fs/ext4/super.c | 6 +++---
> fs/ext4/sysfs.c | 4 ++--
> fs/f2fs/Kconfig | 20 --------------------
> fs/f2fs/data.c | 2 +-
> fs/f2fs/f2fs.h | 2 --
> fs/f2fs/super.c | 6 +++---
> fs/f2fs/sysfs.c | 4 ++--
> fs/verity/Kconfig | 3 ++-
> include/linux/fs.h | 4 ++--
> include/linux/fsverity.h | 3 +--
> 14 files changed, 20 insertions(+), 64 deletions(-)
>
[...]
> diff --git a/include/linux/fsverity.h b/include/linux/fsverity.h
> index c30c4f6ed411..f37132c640ee 100644
> --- a/include/linux/fsverity.h
> +++ b/include/linux/fsverity.h
> @@ -19,8 +19,7 @@ struct fsverity_operations {
> int (*get_metadata_end)(struct inode *inode, loff_t *metadata_end_ret);
> };
>
> -#if __FS_HAS_VERITY
> -
> +#ifdef CONFIG_FS_VERITY
> /* ioctl.c */
> extern int fsverity_ioctl_enable(struct file *filp, const void __user *arg);
> extern int fsverity_ioctl_measure(struct file *filp, void __user *arg);
> --
> 2.19.1
>

Can you grep for __FS_HAS_VERITY? It's still mentioned twice in comments for
this #ifdef (these should be changed to CONFIG_FS_VERITY), and it's still
defined in fs/verity/fsverity_private.h (that one should be removed).

Thanks,

- Eric