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Date:   Mon, 4 Nov 2019 10:09:53 +0800
From:   Gao Xiang <gaoxiang25@...wei.com>
To:     Valdis Kletnieks <valdis.kletnieks@...edu>
CC:     "Darrick J . Wong" <darrick.wong@...cle.com>,
        Jan Kara <jack@...e.cz>, Theodore Ts'o <tytso@....edu>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Gao Xiang <xiang@...nel.org>, Chao Yu <chao@...nel.org>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        Jaegeuk Kim <jaegeuk@...nel.org>, <linux-xfs@...r.kernel.org>,
        Jan Kara <jack@...e.com>, Arnd Bergmann <arnd@...db.de>,
        <linux-fsdevel@...r.kernel.org>, <devel@...verdev.osuosl.org>,
        <linux-kernel@...r.kernel.org>, <linux-erofs@...ts.ozlabs.org>,
        <linux-ext4@...r.kernel.org>,
        <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-arch@...r.kernel.org>
Subject: Re: [PATCH 10/10] errno.h: Provide EFSCORRUPTED for everybody

On Sun, Nov 03, 2019 at 08:45:06PM -0500, Valdis Kletnieks wrote:
> There's currently 6 filesystems that have the same #define. Move it
> into errno.h so it's defined in just one place.
> 
> Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@...edu>
> Acked-by: Darrick J. Wong <darrick.wong@...cle.com>
> Reviewed-by: Jan Kara <jack@...e.cz>
> Acked-by: Theodore Ts'o <tytso@....edu>

For EROFS part,

Acked-by: Gao Xiang <gaoxiang25@...wei.com>

> ---
>  drivers/staging/exfat/exfat.h    | 2 --
>  fs/erofs/internal.h              | 2 --
>  fs/ext4/ext4.h                   | 1 -
>  fs/f2fs/f2fs.h                   | 1 -
>  fs/xfs/xfs_linux.h               | 1 -
>  include/linux/jbd2.h             | 1 -
>  include/uapi/asm-generic/errno.h | 1 +
>  7 files changed, 1 insertion(+), 8 deletions(-)
> 
> diff --git a/drivers/staging/exfat/exfat.h b/drivers/staging/exfat/exfat.h
> index 72cf40e123de..58b091a077e8 100644
> --- a/drivers/staging/exfat/exfat.h
> +++ b/drivers/staging/exfat/exfat.h
> @@ -30,8 +30,6 @@
>  #undef DEBUG
>  #endif
>  
> -#define EFSCORRUPTED	EUCLEAN		/* Filesystem is corrupted */
> -
>  #define DENTRY_SIZE		32	/* dir entry size */
>  #define DENTRY_SIZE_BITS	5
>  
> diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
> index 544a453f3076..3980026a8882 100644
> --- a/fs/erofs/internal.h
> +++ b/fs/erofs/internal.h
> @@ -425,7 +425,5 @@ static inline int z_erofs_init_zip_subsystem(void) { return 0; }
>  static inline void z_erofs_exit_zip_subsystem(void) {}
>  #endif	/* !CONFIG_EROFS_FS_ZIP */
>  
> -#define EFSCORRUPTED    EUCLEAN         /* Filesystem is corrupted */
> -
>  #endif	/* __EROFS_INTERNAL_H */
>  
> diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
> index 03db3e71676c..a86c2585457d 100644
> --- a/fs/ext4/ext4.h
> +++ b/fs/ext4/ext4.h
> @@ -3396,6 +3396,5 @@ static inline int ext4_buffer_uptodate(struct buffer_head *bh)
>  #endif	/* __KERNEL__ */
>  
>  #define EFSBADCRC	EBADMSG		/* Bad CRC detected */
> -#define EFSCORRUPTED	EUCLEAN		/* Filesystem is corrupted */
>  
>  #endif	/* _EXT4_H */
> diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
> index 4024790028aa..04ebe77569a3 100644
> --- a/fs/f2fs/f2fs.h
> +++ b/fs/f2fs/f2fs.h
> @@ -3752,6 +3752,5 @@ static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
>  }
>  
>  #define EFSBADCRC	EBADMSG		/* Bad CRC detected */
> -#define EFSCORRUPTED	EUCLEAN		/* Filesystem is corrupted */
>  
>  #endif /* _LINUX_F2FS_H */
> diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h
> index ca15105681ca..3409d02a7d21 100644
> --- a/fs/xfs/xfs_linux.h
> +++ b/fs/xfs/xfs_linux.h
> @@ -123,7 +123,6 @@ typedef __u32			xfs_nlink_t;
>  
>  #define ENOATTR		ENODATA		/* Attribute not found */
>  #define EWRONGFS	EINVAL		/* Mount with wrong filesystem type */
> -#define EFSCORRUPTED	EUCLEAN		/* Filesystem is corrupted */
>  #define EFSBADCRC	EBADMSG		/* Bad CRC detected */
>  
>  #define SYNCHRONIZE()	barrier()
> diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
> index 603fbc4e2f70..69411d7e0431 100644
> --- a/include/linux/jbd2.h
> +++ b/include/linux/jbd2.h
> @@ -1657,6 +1657,5 @@ static inline tid_t  jbd2_get_latest_transaction(journal_t *journal)
>  #endif	/* __KERNEL__ */
>  
>  #define EFSBADCRC	EBADMSG		/* Bad CRC detected */
> -#define EFSCORRUPTED	EUCLEAN		/* Filesystem is corrupted */
>  
>  #endif	/* _LINUX_JBD2_H */
> diff --git a/include/uapi/asm-generic/errno.h b/include/uapi/asm-generic/errno.h
> index cf9c51ac49f9..1d5ffdf54cb0 100644
> --- a/include/uapi/asm-generic/errno.h
> +++ b/include/uapi/asm-generic/errno.h
> @@ -98,6 +98,7 @@
>  #define	EINPROGRESS	115	/* Operation now in progress */
>  #define	ESTALE		116	/* Stale file handle */
>  #define	EUCLEAN		117	/* Structure needs cleaning */
> +#define	EFSCORRUPTED	EUCLEAN

BTW, minor, how about adding some comments right after EFSCORRUPTED
like the other error codes although it's now an alias...
Just my personal thought.

Thanks,
Gao Xiang

>  #define	ENOTNAM		118	/* Not a XENIX named type file */
>  #define	ENAVAIL		119	/* No XENIX semaphores available */
>  #define	EISNAM		120	/* Is a named type file */
> -- 
> 2.24.0.rc1
> 

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