linux-ext4 - Re: [PATCH v8 10/11] f2fs: add inline encryption support

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Message-ID: <20200315171652.GA1055@sol.localdomain>
Date:   Sun, 15 Mar 2020 10:16:52 -0700
From:   Eric Biggers <ebiggers@...nel.org>
To:     Satya Tangirala <satyat@...gle.com>
Cc:     linux-block@...r.kernel.org, linux-scsi@...r.kernel.org,
        linux-fscrypt@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net, linux-ext4@...r.kernel.org,
        Barani Muthukumaran <bmuthuku@....qualcomm.com>,
        Kuohong Wang <kuohong.wang@...iatek.com>,
        Kim Boojin <boojin.kim@...sung.com>
Subject: Re: [PATCH v8 10/11] f2fs: add inline encryption support

On Thu, Mar 12, 2020 at 01:02:52AM -0700, Satya Tangirala wrote:
> diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
> index 5355be6b6755..75817f0dc6f8 100644
> --- a/fs/f2fs/f2fs.h
> +++ b/fs/f2fs/f2fs.h
> @@ -139,6 +139,9 @@ struct f2fs_mount_info {
>  	int alloc_mode;			/* segment allocation policy */
>  	int fsync_mode;			/* fsync policy */
>  	bool test_dummy_encryption;	/* test dummy encryption */
> +#ifdef CONFIG_FS_ENCRYPTION
> +	bool inlinecrypt;		/* inline encryption enabled */
> +#endif
>  	block_t unusable_cap;		/* Amount of space allowed to be
>  					 * unusable when disabling checkpoint
>  					 */

This bool is unused now.

> @@ -1568,6 +1577,9 @@ static void default_options(struct f2fs_sb_info *sbi)
>  	F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
>  	F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
>  	F2FS_OPTION(sbi).test_dummy_encryption = false;
> +#ifdef CONFIG_FS_ENCRYPTION
> +	sbi->sb->s_flags &= ~SB_INLINECRYPT;
> +#endif

This really should be CONFIG_FS_ENCRYPTION_INLINE_CRYPT, but actually there's no
need for the #ifdef at all.  Just clear the flag unconditionally.

- Eric