Re: [PATCH v7 16/22] block: convert to errseq_t based writeback error tracking

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>  	error = filemap_write_and_wait_range(filp->f_mapping, start, end);
>  	if (error)
> -		return error;
> +		goto out;
>  
>  	/*
>  	 * There is no need to serialise calls to blkdev_issue_flush with
> @@ -640,6 +640,10 @@ int blkdev_fsync(struct file *filp, loff_t start, loff_t end, int datasync)
>  	if (error == -EOPNOTSUPP)
>  		error = 0;
>  
> +out:
> +	wberr = filemap_report_wb_err(filp);
> +	if (!error)
> +		error = wberr;

Just curious: what's the reason filemap_write_and_wait_range couldn't
query for the error using filemap_report_wb_err internally?



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