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Date:   Sat, 19 Dec 2020 07:25:12 +1100
From:   NeilBrown <>
To:     Jeffrey Layton <>,
        Vivek Goyal <>
Cc:     Jeff Layton <>,,,,,,,,,,
Subject: Re: [PATCH 3/3] overlayfs: Check writeback errors w.r.t upper in

On Fri, Dec 18 2020, Jeffrey Layton wrote:
> The patch we're discussing here _does_ add a f_op->syncfs, which is why
> I was suggesting to do it that way.

I haven't thought through the issues to decide what I think of adding a
new op, but I already know what I think of adding ->syncfs.  Don't Do
It.  The name is much too easily confused with ->sync_fs.

If you call it ->sync_fs_return_error() it would be MUCH better.

And having said that, the solution becomes obvious.  Add a new flag,
either as another bit in 'int wait', or as a new bool.
The new flag would be "return_error" - or whatever is appropriate.


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