From: Peter Maydell <peter.maydell@linaro.org>
To: Iris Johnson <iris@modwiz.com>
Cc: "Igor Mitsyanko" <i.mitsyanko@gmail.com>,
"Marc-André Lureau" <marcandre.lureau@redhat.com>,
"open list:Exynos" <qemu-arm@nongnu.org>,
"open list:All patches CC here" <qemu-devel@nongnu.org>,
"Paolo Bonzini" <pbonzini@redhat.com>
Subject: Re: [PATCH] hw/char/exynos4210_uart: Fix missing call to report ready for input
Date: Tue, 2 Feb 2021 11:07:36 +0000 [thread overview]
Message-ID: <CAFEAcA_oouEJ0-=FA0iu2EsuQxwbw2buZXvjuUfYWAdvEVKurw@mail.gmail.com> (raw)
In-Reply-To: <20210130184016.1787097-1-iris@modwiz.com>
On Sat, 30 Jan 2021 at 18:42, Iris Johnson <iris@modwiz.com> wrote:
>
> When the frontend device has no space for a read the fd is removed
> from polling to allow time for the guest to read and clear the buffer.
> Without the call to qemu_chr_fe_accept_input(), the poll will not be
> broken out of when the guest has cleared the buffer causing significant
> IO delays that get worse with smaller buffers.
>
> Buglink: https://bugs.launchpad.net/qemu/+bug/1913341
> Signed-off-by: Iris Johnson <iris@modwiz.com>
> ---
> hw/char/exynos4210_uart.c | 1 +
Applied to target-arm.next, thanks.
-- PMM
prev parent reply other threads:[~2021-02-02 11:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-30 18:40 [PATCH] hw/char/exynos4210_uart: Fix missing call to report ready for input Iris Johnson
2021-02-02 11:07 ` Peter Maydell [this message]
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