linux-kernel - Re: [PATCH v10 19/21] mm: Add vmalloc_huge

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250313075924.qulV64zL@linutronix.de>
Date: Thu, 13 Mar 2025 08:59:24 +0100
From: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org,
	André Almeida <andrealmeid@...lia.com>,
	Darren Hart <dvhart@...radead.org>,
	Davidlohr Bueso <dave@...olabs.net>, Ingo Molnar <mingo@...hat.com>,
	Juri Lelli <juri.lelli@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Valentin Schneider <vschneid@...hat.com>,
	Waiman Long <longman@...hat.com>,
	Uladzislau Rezki <urezki@...il.com>,
	Christoph Hellwig <hch@...radead.org>, linux-mm@...ck.org,
	Christoph Hellwig <hch@....de>
Subject: Re: [PATCH v10 19/21] mm: Add vmalloc_huge_node()

On 2025-03-12 15:02:06 [-0700], Andrew Morton wrote:
> On Wed, 12 Mar 2025 16:16:32 +0100 Sebastian Andrzej Siewior <bigeasy@...utronix.de> wrote:
> 
> > From: Peter Zijlstra <peterz@...radead.org>
> > 
> > To enable node specific hash-tables.
> 
> "... using huge pages if possible"?
> 
> > --- a/mm/vmalloc.c
> > +++ b/mm/vmalloc.c
> > @@ -3966,6 +3966,13 @@ void *vmalloc_huge_noprof(unsigned long size, gfp_t gfp_mask)
> >  }
> >  EXPORT_SYMBOL_GPL(vmalloc_huge_noprof);
> >  
> > +void *vmalloc_huge_node_noprof(unsigned long size, gfp_t gfp_mask, int node)
> > +{
> > +	return __vmalloc_node_range_noprof(size, 1, VMALLOC_START, VMALLOC_END,
> > +					   gfp_mask, PAGE_KERNEL, VM_ALLOW_HUGE_VMAP,
> > +					   node, __builtin_return_address(0));
> > +}
> > +
> 
> kerneldoc please?

Okay.

> 
> I suppose we can now simplify vmalloc_huge_noprof() to use this:
> 
> static inline void *vmalloc_huge_noprof(unsigned long size, gfp_t gfp_mask)
> {
> 	return vmalloc_huge_node_noprof(size, gfp_mask, NUMA_NO_NODE);
> }

Do you want me to stash this into this one or as a follow up?

Sebastian