linux-kernel - Re: [PATCH] mm: mempool: Factor out mempool

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Message-ID: <20151215212638.GA17162@cmpxchg.org>
Date:	Tue, 15 Dec 2015 16:26:39 -0500
From:	Johannes Weiner <hannes@...xchg.org>
To:	"Wang, Zhi A" <zhi.a.wang@...el.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH] mm: mempool: Factor out mempool_refill()

On Mon, Dec 14, 2015 at 11:09:43AM +0000, Wang, Zhi A wrote:
> This patch factors out mempool_refill() from mempool_resize(). It's reasonable
> that the mempool user wants to refill the pool immdiately when it has chance
> e.g. inside a sleepible context, so that next time in the IRQ context the pool
> would have much more available elements to allocate.
> 
> After the refactor, mempool_refill() can also executes with mempool_resize()
> /mempool_alloc/mempool_free() or another mempool_refill().
> 
> Signed-off-by: Zhi Wang <zhi.a.wang@...el.com>

Who is going to call that function? Adding a new interace usually
comes with a user, or as part of a series that adds users.
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