linux-kernel - Re: [PATCH 4/5] mm/lru: is_file/active

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Date:	Tue, 22 Mar 2016 20:17:08 -0700
From:	Joe Perches <joe@...ches.com>
To:	Yaowei Bai <baiyaowei@...s.chinamobile.com>,
	akpm@...ux-foundation.org
Cc:	n-horiguchi@...jp.nec.com, kirill.shutemov@...ux.intel.com,
	rientjes@...gle.com, iamjoonsoo.kim@....com, hannes@...xchg.org,
	vdavydov@...tuozzo.com, kuleshovmail@...il.com, vbabka@...e.cz,
	mgorman@...hsingularity.net, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/5] mm/lru: is_file/active_lru can be boolean

On Wed, 2016-03-23 at 10:26 +0800, Yaowei Bai wrote:
> This patch makes is_file/active_lru return bool to improve
> readability due to these particular functions only using either
> one or zero as their return value.
> 
> No functional change.

These assignments to int should likely be modified too

$ git grep -w -n is_file_lru
include/linux/mmzone.h:191:static inline int is_file_lru(enum lru_list lru)
mm/vmscan.c:1404:                                   nr_taken, mode, is_file_lru(lru));
mm/vmscan.c:1525:                       int file = is_file_lru(lru);
mm/vmscan.c:1581:       int file = is_file_lru(lru);
mm/vmscan.c:1783:       int file = is_file_lru(lru);
mm/vmscan.c:1934:       if (is_file_lru(lru))
mm/vmscan.c:2129:                       int file = is_file_lru(lru);