Re: [PATCH V2 6/7] f2fs: use IS_VERITY() to check inode's fsverity status

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Hi Chandan,

On Tue, Dec 04, 2018 at 03:26:49PM +0530, Chandan Rajendra wrote:
> This commit now uses IS_VERITY() macro to check if fsverity is
> enabled on an inode.
> 
> Acked-by: Chao Yu <yuchao0@xxxxxxxxxx>
> Signed-off-by: Chandan Rajendra <chandan@xxxxxxxxxxxxxxxxxx>
> ---
>  fs/f2fs/file.c  | 6 +++---
>  fs/f2fs/inode.c | 4 +++-
>  2 files changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
> index 6c7ad15000b9..2eb4821d95d1 100644
> --- a/fs/f2fs/file.c
> +++ b/fs/f2fs/file.c
> @@ -491,7 +491,7 @@ static int f2fs_file_open(struct inode *inode, struct file *filp)
>  	if (err)
>  		return err;
>  
> -	if (f2fs_verity_file(inode)) {
> +	if (IS_VERITY(inode)) {
>  		err = fsverity_file_open(inode, filp);
>  		if (err)
>  			return err;
> @@ -701,7 +701,7 @@ int f2fs_getattr(const struct path *path, struct kstat *stat,
>  	struct f2fs_inode *ri;
>  	unsigned int flags;
>  
> -	if (f2fs_verity_file(inode)) {
> +	if (IS_VERITY(inode)) {
>  		/*
>  		 * For fs-verity we need to override i_size with the original
>  		 * data i_size.  This requires I/O to the file which with
> @@ -800,7 +800,7 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
>  	if (err)
>  		return err;
>  
> -	if (f2fs_verity_file(inode)) {
> +	if (IS_VERITY(inode)) {
>  		err = fsverity_prepare_setattr(dentry, attr);
>  		if (err)
>  			return err;
> diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
> index ddef483ad689..02806feed64c 100644
> --- a/fs/f2fs/inode.c
> +++ b/fs/f2fs/inode.c
> @@ -45,9 +45,11 @@ void f2fs_set_inode_flags(struct inode *inode)
>  		new_fl |= S_DIRSYNC;
>  	if (f2fs_encrypted_inode(inode))
>  		new_fl |= S_ENCRYPTED;
> +	if (f2fs_verity_file(inode))
> +		new_fl |= S_VERITY;
>  	inode_set_flags(inode, new_fl,
>  			S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|
> -			S_ENCRYPTED);
> +			S_ENCRYPTED|S_VERITY);
>  }
>  
>  static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
> -- 
> 2.19.1
> 

Similar to what I said for fscrypt: why not remove f2fs_verity_file() entirely
and always use IS_VERITY() or file_is_verity() as appropriate?

- Eric



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