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From: Chao Yu <chao2.yu@samsung.com>
To: "'Jaegeuk Kim'" <jaegeuk@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-f2fs-devel@lists.sourceforge.net
Subject: RE: [f2fs-dev] [PATCH 1/2] f2fs: add F2FS_GOING_DOWN_METAFLUSH to test power-failure
Date: Mon, 12 Oct 2015 17:01:29 +0800	[thread overview]
Message-ID: <020e01d104cc$af078480$0d168d80$@samsung.com> (raw)
In-Reply-To: <1444350566-37795-1-git-send-email-jaegeuk@kernel.org>

> -----Original Message-----
> From: Jaegeuk Kim [mailto:jaegeuk@kernel.org]
> Sent: Friday, October 09, 2015 8:29 AM
> To: linux-kernel@vger.kernel.org; linux-fsdevel@vger.kernel.org;
> linux-f2fs-devel@lists.sourceforge.net
> Cc: Jaegeuk Kim
> Subject: [f2fs-dev] [PATCH 1/2] f2fs: add F2FS_GOING_DOWN_METAFLUSH to test power-failure
> 
> This patch introduces F2FS_GOING_DOWN_METAFLUSH which flushes meta pages like
> SSA blocks and then blocks all the writes.
> This can be used by power-failure tests.
> 
> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

Good idea! I test power-failure case by changing src/godown to use new
macro, until now, I didn't catch any consistent problem. :)

Reviewed-by: Chao Yu <chao2.yu@samsung.com>

Thanks,

> ---
>  fs/f2fs/f2fs.h | 1 +
>  fs/f2fs/file.c | 4 ++++
>  2 files changed, 5 insertions(+)
> 
> diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
> index aad4720..f05ae22 100644
> --- a/fs/f2fs/f2fs.h
> +++ b/fs/f2fs/f2fs.h
> @@ -250,6 +250,7 @@ static inline bool __has_cursum_space(struct f2fs_summary_block *sum, int
> size,
>  #define F2FS_GOING_DOWN_FULLSYNC	0x0	/* going down with full sync */
>  #define F2FS_GOING_DOWN_METASYNC	0x1	/* going down with metadata */
>  #define F2FS_GOING_DOWN_NOSYNC		0x2	/* going down */
> +#define F2FS_GOING_DOWN_METAFLUSH	0x3	/* going down with meta flush */
> 
>  #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
>  /*
> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
> index b3985a6..6d3cfd5 100644
> --- a/fs/f2fs/file.c
> +++ b/fs/f2fs/file.c
> @@ -1498,6 +1498,10 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
>  	case F2FS_GOING_DOWN_NOSYNC:
>  		f2fs_stop_checkpoint(sbi);
>  		break;
> +	case F2FS_GOING_DOWN_METAFLUSH:
> +		sync_meta_pages(sbi, META, LONG_MAX);
> +		f2fs_stop_checkpoint(sbi);
> +		break;
>  	default:
>  		return -EINVAL;
>  	}
> --
> 2.1.1
> 
> 
> ------------------------------------------------------------------------------
> _______________________________________________
> Linux-f2fs-devel mailing list
> Linux-f2fs-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel


WARNING: multiple messages have this Message-ID
From: Chao Yu <chao2.yu@samsung.com>
To: 'Jaegeuk Kim' <jaegeuk@kernel.org>
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-f2fs-devel@lists.sourceforge.net
Subject: Re: [PATCH 1/2] f2fs: add F2FS_GOING_DOWN_METAFLUSH to test	power-failure
Date: Mon, 12 Oct 2015 17:01:29 +0800	[thread overview]
Message-ID: <020e01d104cc$af078480$0d168d80$@samsung.com> (raw)
In-Reply-To: <1444350566-37795-1-git-send-email-jaegeuk@kernel.org>

> -----Original Message-----
> From: Jaegeuk Kim [mailto:jaegeuk@kernel.org]
> Sent: Friday, October 09, 2015 8:29 AM
> To: linux-kernel@vger.kernel.org; linux-fsdevel@vger.kernel.org;
> linux-f2fs-devel@lists.sourceforge.net
> Cc: Jaegeuk Kim
> Subject: [f2fs-dev] [PATCH 1/2] f2fs: add F2FS_GOING_DOWN_METAFLUSH to test power-failure
> 
> This patch introduces F2FS_GOING_DOWN_METAFLUSH which flushes meta pages like
> SSA blocks and then blocks all the writes.
> This can be used by power-failure tests.
> 
> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

Good idea! I test power-failure case by changing src/godown to use new
macro, until now, I didn't catch any consistent problem. :)

Reviewed-by: Chao Yu <chao2.yu@samsung.com>

Thanks,

> ---
>  fs/f2fs/f2fs.h | 1 +
>  fs/f2fs/file.c | 4 ++++
>  2 files changed, 5 insertions(+)
> 
> diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
> index aad4720..f05ae22 100644
> --- a/fs/f2fs/f2fs.h
> +++ b/fs/f2fs/f2fs.h
> @@ -250,6 +250,7 @@ static inline bool __has_cursum_space(struct f2fs_summary_block *sum, int
> size,
>  #define F2FS_GOING_DOWN_FULLSYNC	0x0	/* going down with full sync */
>  #define F2FS_GOING_DOWN_METASYNC	0x1	/* going down with metadata */
>  #define F2FS_GOING_DOWN_NOSYNC		0x2	/* going down */
> +#define F2FS_GOING_DOWN_METAFLUSH	0x3	/* going down with meta flush */
> 
>  #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
>  /*
> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
> index b3985a6..6d3cfd5 100644
> --- a/fs/f2fs/file.c
> +++ b/fs/f2fs/file.c
> @@ -1498,6 +1498,10 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
>  	case F2FS_GOING_DOWN_NOSYNC:
>  		f2fs_stop_checkpoint(sbi);
>  		break;
> +	case F2FS_GOING_DOWN_METAFLUSH:
> +		sync_meta_pages(sbi, META, LONG_MAX);
> +		f2fs_stop_checkpoint(sbi);
> +		break;
>  	default:
>  		return -EINVAL;
>  	}
> --
> 2.1.1
> 
> 
> ------------------------------------------------------------------------------
> _______________________________________________
> Linux-f2fs-devel mailing list
> Linux-f2fs-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel


------------------------------------------------------------------------------

  parent reply	other threads:[~2015-10-12  9:02 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-09  0:29 Jaegeuk Kim
2015-10-09  0:29 ` [PATCH 2/2] Revert "f2fs: do not skip dentry block writes" Jaegeuk Kim
2015-10-12  9:01 ` Chao Yu [this message]
2015-10-12  9:01   ` [PATCH 1/2] f2fs: add F2FS_GOING_DOWN_METAFLUSH to test power-failure Chao Yu
2015-10-12 20:37   ` [f2fs-dev] " Jaegeuk Kim
2015-10-13  3:30     ` Chao Yu
2015-10-13  3:30       ` Chao Yu

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