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Re: [PATCH 1/2] file-posix: allow -EBUSY errors during write zeros on ra


From: Maxim Levitsky
Subject: Re: [PATCH 1/2] file-posix: allow -EBUSY errors during write zeros on raw block devices
Date: Thu, 07 Jan 2021 14:44:08 +0200
User-agent: Evolution 3.36.5 (3.36.5-1.fc32)

On Mon, 2020-11-16 at 15:48 +0100, Kevin Wolf wrote:
> Am 11.11.2020 um 16:39 hat Maxim Levitsky geschrieben:
> > On Linux, fallocate(fd, FALLOC_FL_PUNCH_HOLE) when it is used on a block 
> > device,
> > without O_DIRECT can return -EBUSY if it races with another write to the 
> > same page.
> > 
> > Since this is rare and discard is not a critical operation, ignore this 
> > error
> > 
> > Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
> 
> I'm applying this one for 5.2, it certainly shouldn't hurt and makes
> things work at least, even if possibly not in the optimal way.
> 
> Patch 2 seems to be a bit less obvious and discussion is ongoing, so
> that's probably more 6.0 material.
> 
> Kevin

Any feedback on patch 2?

Best regards,
        Maxim Levitsky




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