Re: [PATCH 8/9] rbd: set req->r_abort_on_full in writing

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On Tue, May 8, 2018 at 8:13 AM, Dongsheng Yang
<dongsheng.yang@xxxxxxxxxxxx> wrote:
> To be more specific, the ENOSPC was introduced by
> a9d6ceb838755c24dde8a0ca02c3378926fc63db.
>
> Please check:
>
> https://github.com/torvalds/linux/commit/a9d6ceb838755c24dde8a0ca02c3378926fc63db

This commit added an error string for -ENOSPC, so that "critical space
allocation error" is printed instead of "I/O error".  It didn't change
anything about generic error code propagation.

>
> Or, maybe we can keep the default behavior of blocking IO, but add a rbd
> option like abort_on_full to
> return ENOSPC in the case we really don't want any IO blocking in our
> program.

What is your use case?  Are you using raw block devices with pool
quotas enabled?

Thanks,

                Ilya
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