Re: [PATCH 07/12] ext4: Defer saving error info from atomic context

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On Wed 16-12-20 00:40:29, Theodore Y. Ts'o wrote:
> Applied with the following additional change folded in:

Cool. Thanks for fixing this!

								Honza


> 
> diff --git a/fs/ext4/super.c b/fs/ext4/super.c
> index 0c18f50f2207..9d0ce11bd48e 100644
> --- a/fs/ext4/super.c
> +++ b/fs/ext4/super.c
> @@ -5475,17 +5475,21 @@ static int ext4_commit_super(struct super_block *sb, int sync)
>  	spin_lock(&sbi->s_error_lock);
>  	if (sbi->s_add_error_count > 0) {
>  		es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
> -		__ext4_update_tstamp(&es->s_first_error_time,
> -				     &es->s_first_error_time_hi,
> -				     sbi->s_first_error_time);
> -		strncpy(es->s_first_error_func, sbi->s_first_error_func,
> -			sizeof(es->s_first_error_func));
> -		es->s_first_error_line = cpu_to_le32(sbi->s_first_error_line);
> -		es->s_first_error_ino = cpu_to_le32(sbi->s_first_error_ino);
> -		es->s_first_error_block = cpu_to_le64(sbi->s_first_error_block);
> -		es->s_first_error_errcode =
> +		if (!es->s_first_error_time && !es->s_first_error_time_hi) {
> +			__ext4_update_tstamp(&es->s_first_error_time,
> +					     &es->s_first_error_time_hi,
> +					     sbi->s_first_error_time);
> +			strncpy(es->s_first_error_func, sbi->s_first_error_func,
> +				sizeof(es->s_first_error_func));
> +			es->s_first_error_line =
> +				cpu_to_le32(sbi->s_first_error_line);
> +			es->s_first_error_ino =
> +				cpu_to_le32(sbi->s_first_error_ino);
> +			es->s_first_error_block =
> +				cpu_to_le64(sbi->s_first_error_block);
> +			es->s_first_error_errcode =
>  				ext4_errno_to_code(sbi->s_first_error_code);
> -
> +		}
>  		__ext4_update_tstamp(&es->s_last_error_time,
>  				     &es->s_last_error_time_hi,
>  				     sbi->s_last_error_time);
-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR



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