linux-kernel - Re: [PATCH 10/18] rcu/tree: Maintain separate array for vmalloc ptrs

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Date:   Mon, 30 Mar 2020 13:16:06 -0400
From:   Joel Fernandes <joel@...lfernandes.org>
To:     "Paul E. McKenney" <paulmck@...nel.org>
Cc:     Matthew Wilcox <willy@...radead.org>,
        Uladzislau Rezki <urezki@...il.com>, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Ingo Molnar <mingo@...hat.com>,
        Josh Triplett <josh@...htriplett.org>,
        Lai Jiangshan <jiangshanlai@...il.com>, linux-mm@...ck.org,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        rcu@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCH 10/18] rcu/tree: Maintain separate array for vmalloc ptrs

On Mon, Mar 30, 2020 at 08:37:02AM -0700, Paul E. McKenney wrote:
> On Mon, Mar 30, 2020 at 08:31:49AM -0700, Matthew Wilcox wrote:
> > On Mon, Mar 30, 2020 at 05:29:51PM +0200, Uladzislau Rezki wrote:
> > > Hello, Joel.
> > > 
> > > Sent out the patch fixing build error.
> > 
> > ... where?  It didn't get cc'd to linux-mm?
> 
> The kbuild test robot complained.  Prior than the build error, the
> patch didn't seem all that relevant to linux-mm.  ;-)

I asked the preprocessor to tell me why I didn't hit this in my tree. Seems
it because vmalloc.h is included in my tree through the following includes. 

./include/linux/nmi.h
./arch/x86/include/asm/nmi.h
./arch/x86/include/asm/io.h
./include/asm-generic/io.h
./include/linux/vmalloc.h

Such paths may not exist in kbuild robot's tree, so I will apply Vlad's patch to
fix this and push it to my rcu/kfree branch.

thanks,

 - Joel