linux-kernel - Re: [PATCH net-next v4 4/7] eventpoll: Trigger napi_busy_loop, if prefer_busy

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Message-ID: <f34c989f-a381-47cb-b097-3dde9de2bd20@intel.com>
Date: Sat, 2 Nov 2024 18:33:54 -0500
From: "Samudrala, Sridhar" <sridhar.samudrala@...el.com>
To: Joe Damato <jdamato@...tly.com>, <netdev@...r.kernel.org>
CC: <bagasdotme@...il.com>, <pabeni@...hat.com>, <namangulati@...gle.com>,
	<edumazet@...gle.com>, <amritha.nambiar@...el.com>, <sdf@...ichev.me>,
	<peter@...eblog.net>, <m2shafiei@...terloo.ca>, <bjorn@...osinc.com>,
	<hch@...radead.org>, <willy@...radead.org>,
	<willemdebruijn.kernel@...il.com>, <skhawaja@...gle.com>, <kuba@...nel.org>,
	Martin Karsten <mkarsten@...terloo.ca>, Alexander Viro
	<viro@...iv.linux.org.uk>, Christian Brauner <brauner@...nel.org>, Jan Kara
	<jack@...e.cz>, "open list:FILESYSTEMS (VFS and infrastructure)"
	<linux-fsdevel@...r.kernel.org>, open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next v4 4/7] eventpoll: Trigger napi_busy_loop, if
 prefer_busy_poll is set



On 11/1/2024 7:52 PM, Joe Damato wrote:
> From: Martin Karsten <mkarsten@...terloo.ca>
> 
> Setting prefer_busy_poll now leads to an effectively nonblocking
> iteration though napi_busy_loop, even when busy_poll_usecs is 0.
> 
> Signed-off-by: Martin Karsten <mkarsten@...terloo.ca>
> Co-developed-by: Joe Damato <jdamato@...tly.com>
> Signed-off-by: Joe Damato <jdamato@...tly.com>
> Tested-by: Joe Damato <jdamato@...tly.com>
> Tested-by: Martin Karsten <mkarsten@...terloo.ca>
> Acked-by: Stanislav Fomichev <sdf@...ichev.me>
> ---
Reviewed-by: Sridhar Samudrala <sridhar.samudrala@...el.com>