From: Wei Yang <richard.weiyang@linux.alibaba.com>
To: mgorman@suse.de, akpm@linux-foundation.org,
richard.weiyang@linux.alibaba.com
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/4] mm/page_alloc.c: replace the definition of NR_MIGRATETYPE_BITS with PB_migratetype_bits
Date: Tue, 23 Jun 2020 20:41:58 +0800 [thread overview]
Message-ID: <20200623124201.8199-1-richard.weiyang@linux.alibaba.com> (raw)
We already have the definition of PB_migratetype_bits and current
NR_MIGRATETYPE_BITS looks like a cyclic definition.
Just use PB_migratetype_bits is enough.
Signed-off-by: Wei Yang <richard.weiyang@linux.alibaba.com>
---
include/linux/mmzone.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index df1f08486d81..eeb0da54ff5f 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -88,8 +88,7 @@ static inline bool is_migrate_movable(int mt)
extern int page_group_by_mobility_disabled;
-#define NR_MIGRATETYPE_BITS (PB_migrate_end - PB_migrate + 1)
-#define MIGRATETYPE_MASK ((1UL << NR_MIGRATETYPE_BITS) - 1)
+#define MIGRATETYPE_MASK ((1UL << PB_migratetype_bits) - 1)
#define get_pageblock_migratetype(page) \
get_pfnblock_flags_mask(page, page_to_pfn(page), \
--
2.20.1 (Apple Git-117)
next reply other threads:[~2020-06-23 12:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-23 12:41 Wei Yang [this message]
2020-06-23 12:41 ` [PATCH 2/4] mm/page_alloc.c: extract the common part in pfn_to_bitidx() Wei Yang
2020-06-23 12:42 ` [PATCH 3/4] mm/page_alloc.c: simplify pageblock bitmap access Wei Yang
2020-06-23 12:42 ` [PATCH 4/4] mm/page_alloc.c: remove unnecessary end_bitidx for [set|get]_pfnblock_flags_mask() Wei Yang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200623124201.8199-1-richard.weiyang@linux.alibaba.com \
--to=richard.weiyang@linux.alibaba.com \
--cc=akpm@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mgorman@suse.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox