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Date:   Tue, 21 Jul 2020 17:16:16 +0200
From:   Christoph Hellwig <>
To:     Matthew Wilcox <>
Cc:     Christoph Hellwig <>,
        Goldwyn Rodrigues <>,
        Dave Chinner <>,
        Damien Le Moal <>,
        Naohiro Aota <>,
        Johannes Thumshirn <>,,,,,,
        Michael Kerrisk <>,
Subject: Re: RFC: iomap write invalidation

On Tue, Jul 21, 2020 at 04:14:37PM +0100, Matthew Wilcox wrote:
> On Tue, Jul 21, 2020 at 05:06:15PM +0200, Christoph Hellwig wrote:
> > On Tue, Jul 21, 2020 at 04:04:32PM +0100, Matthew Wilcox wrote:
> > > I thought you were going to respin this with EREMCHG changed to ENOTBLK?
> > 
> > Oh, true.  I'll do that ASAP.
> Michael, could we add this to manpages?

Umm, no.  -ENOTBLK is internal - the file systems will retry using
buffered I/O and the error shall never escape to userspace (or even the
VFS for that matter).

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