Re: [11/15] tty: hvc: hvc_poll break hv read loop

From: Michael Ellerman
Date: Mon Aug 13 2018 - 07:23:08 EST

On Mon, 2018-04-30 at 14:55:54 UTC, Nicholas Piggin wrote:
> Avoid looping with the spinlock held while there is read data
> being returned from the hv driver. Instead note if the entire
> size returned by tty_buffer_request_room was read, and request
> another read poll.
> This limits the critical section lengths, and provides more
> even service to other consoles in case there is a pathological
> condition.
> Signed-off-by: Nicholas Piggin <npiggin@xxxxxxxxx>

Applied to powerpc next, thanks.