linux-kernel - Re: [PATCH] crypto: lzo: try kmalloc() before vmalloc()

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Message-ID: <1401212320.5367.258.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Tue, 27 May 2014 10:38:40 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	"David S. Miller" <davem@...emloft.net>,
	linux-crypto@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Seth Jennings <sjennings@...iantweb.net>
Subject: Re: [PATCH] crypto: lzo: try kmalloc() before vmalloc()

On Wed, 2014-05-28 at 01:30 +0800, Herbert Xu wrote:

> Looks good to me.  This would seem like something that could be
> generalised to other vmalloc users, no?
> 

Yep, we have some spots where this is done, and we had attempts in the
past to get a generic allocator / deallocator but this went nowhere,
after a lot of time trying to get this right.

I guess we need to reach some threshold to convince Andrew Morton ;)

$ git grep -n is_vmalloc_addr | wc -l
85



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