linux-kernel - Re: [PATCH v2 5/9] dax: set error in mapping when writeback fails

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Message-ID: <20170310002106.GD30285@linux.intel.com>
Date:   Thu, 9 Mar 2017 17:21:06 -0700
From:   Ross Zwisler <ross.zwisler@...ux.intel.com>
To:     Jeff Layton <jlayton@...hat.com>
Cc:     viro@...iv.linux.org.uk, akpm@...ux-foundation.org,
        konishi.ryusuke@....ntt.co.jp, linux-fsdevel@...r.kernel.org,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        linux-nilfs@...r.kernel.org, ross.zwisler@...ux.intel.com,
        jack@...e.cz, neilb@...e.com, openosd@...il.com, adilger@...ger.ca,
        James.Bottomley@...senPartnership.com
Subject: Re: [PATCH v2 5/9] dax: set error in mapping when writeback fails

On Wed, Mar 08, 2017 at 11:29:30AM -0500, Jeff Layton wrote:
> In order to get proper error codes from fsync, we must set an error in
> the mapping range when writeback fails.
> 
> Signed-off-by: Jeff Layton <jlayton@...hat.com>

Yep, paired with the changes to filmap_write_and_wait() and
filemap_write_and_wait_range(), this seems fine.

Reviewed-by: Ross Zwisler <ross.zwisler@...ux.intel.com>