linux-ext4 - Re: [PATCH v6 15/20] fs: have call_fsync call filemap_report_wb_err if FS_WB

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Date:   Mon, 12 Jun 2017 05:42:24 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Jeff Layton <jlayton@...hat.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Al Viro <viro@...IV.linux.org.uk>, Jan Kara <jack@...e.cz>,
        tytso@....edu, axboe@...nel.dk, mawilcox@...rosoft.com,
        ross.zwisler@...ux.intel.com, corbet@....net,
        Chris Mason <clm@...com>, Josef Bacik <jbacik@...com>,
        David Sterba <dsterba@...e.com>,
        "Darrick J . Wong" <darrick.wong@...cle.com>,
        linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
        linux-ext4@...r.kernel.org, linux-xfs@...r.kernel.org,
        linux-btrfs@...r.kernel.org, linux-block@...r.kernel.org
Subject: Re: [PATCH v6 15/20] fs: have call_fsync call filemap_report_wb_err
 if FS_WB_ERRSEQ is set

On Mon, Jun 12, 2017 at 08:23:11AM -0400, Jeff Layton wrote:
> Allow filesystems to opt-in to a final check of wb_err if FS_WB_ERRSEQ
> is set. Technically, we could just plumb these calls into all of the
> fsync operations, but I think this means less code, changes and churn.

Please add it to every fs, that is a consistent with how we handle
everything else related to writeback.

Oh, and please kill this idiotic call_fsync helper while you're at it.