Re: [PATCH] rcu: Release per-cpu krcp page cache when CPU going offline

[Uladzislau Rezki]

Hello, Qiang,

> On Thu, Jan 21, 2021 at 02:49:49PM +0800, qiang.zhang@xxxxxxxxxxxxx wrote:
> > From: Zqiang <qiang.zhang@xxxxxxxxxxxxx>
> > 
> > If CPUs go offline, the corresponding krcp's page cache can
> > not be use util the CPU come back online, or maybe the CPU
> > will never go online again, this commit therefore free krcp's
> > page cache when CPUs go offline.
> > 
> > Signed-off-by: Zqiang <qiang.zhang@xxxxxxxxxxxxx>
> 
Do you consider it as an issue? We have 5 pages per CPU, that is 20480 bytes. 

--
Vlad Rezki