From: Miaohe Lin <linmiaohe@huawei.com>
To: Matthew Wilcox <willy@infradead.org>
Cc: <akpm@linux-foundation.org>, <david@redhat.com>,
<osalvador@suse.de>, <linux-mm@kvack.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 03/16] mm: remove obsolete macro NR_PCP_ORDER_MASK
Date: Tue, 13 Sep 2022 11:14:02 +0800 [thread overview]
Message-ID: <075c234a-87bc-b479-366d-6bfc2731b3d5@huawei.com> (raw)
In-Reply-To: <YxuV94OgEF5ZQrMv@casper.infradead.org>
On 2022/9/10 3:37, Matthew Wilcox wrote:
> On Fri, Sep 09, 2022 at 05:24:38PM +0800, Miaohe Lin wrote:
>> Since commit 8b10b465d0e1 ("mm/page_alloc: free pages in a single pass
>> during bulk free"), it's not used anymore. Remove it.
>
> Yes, but this patch needs to go further. The comment is no longer true
> (after the patch you mention), so need to also delete these lines:
>
> -/*
> - * Shift to encode migratetype and order in the same integer, with order
> - * in the least significant bits.
> - */
> -#define NR_PCP_ORDER_WIDTH 8
>
> and the line:
> - BUILD_BUG_ON(MAX_ORDER >= (1<<NR_PCP_ORDER_WIDTH));
>
Agree. Many thanks for pointing this out. Will do it in next version.
Thanks,
Miaohe Lin
>
> .
>
next prev parent reply other threads:[~2022-09-13 3:14 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-09 9:24 [PATCH 00/16] A few cleanup patches for mm Miaohe Lin
2022-09-09 9:24 ` [PATCH 01/16] mm/page_alloc: ensure kswapd doesn't accidentally go to sleep Miaohe Lin
2022-09-09 11:39 ` David Hildenbrand
2022-09-13 7:02 ` Anshuman Khandual
2022-09-13 7:58 ` Matthew Wilcox
2022-09-13 11:23 ` Anshuman Khandual
2022-09-15 4:34 ` Oscar Salvador
2022-09-09 9:24 ` [PATCH 02/16] mm/page_alloc: make zone_pcp_update() static Miaohe Lin
2022-09-09 11:26 ` David Hildenbrand
2022-09-13 7:58 ` Anshuman Khandual
2022-09-15 4:41 ` Oscar Salvador
2022-09-09 9:24 ` [PATCH 03/16] mm: remove obsolete macro NR_PCP_ORDER_MASK Miaohe Lin
2022-09-09 11:26 ` David Hildenbrand
2022-09-09 19:37 ` Matthew Wilcox
2022-09-13 3:14 ` Miaohe Lin [this message]
2022-09-13 8:03 ` Anshuman Khandual
2022-09-15 4:44 ` Oscar Salvador
2022-09-09 9:24 ` [PATCH 04/16] mm/page_alloc: remove obsolete comment in zone_statistics() Miaohe Lin
2022-09-09 11:27 ` David Hildenbrand
2022-09-13 8:15 ` Anshuman Khandual
2022-09-15 4:47 ` Oscar Salvador
2022-09-09 9:24 ` [PATCH 05/16] mm/page_alloc: add __init annotations to init_mem_debugging_and_hardening() Miaohe Lin
2022-09-09 11:27 ` David Hildenbrand
2022-09-13 8:20 ` Anshuman Khandual
2022-09-15 4:49 ` Oscar Salvador
2022-09-09 9:24 ` [PATCH 06/16] mm/page_alloc: fix freeing static percpu memory Miaohe Lin
2022-09-09 11:28 ` David Hildenbrand
2022-09-15 4:53 ` Oscar Salvador
2022-09-09 9:24 ` [PATCH 07/16] mm: remove obsolete pgdat_is_empty() Miaohe Lin
2022-09-09 11:28 ` David Hildenbrand
2022-09-13 8:43 ` Anshuman Khandual
2022-09-15 4:55 ` Oscar Salvador
2022-09-09 9:24 ` [PATCH 08/16] mm/page_alloc: add missing is_migrate_isolate() check in set_page_guard() Miaohe Lin
2022-09-09 11:31 ` David Hildenbrand
2022-09-13 6:51 ` Miaohe Lin
2022-09-15 7:26 ` Oscar Salvador
2022-09-15 8:11 ` Miaohe Lin
2022-09-09 9:24 ` [PATCH 09/16] mm/page_alloc: use local variable zone_idx directly Miaohe Lin
2022-09-09 11:31 ` David Hildenbrand
2022-09-13 8:49 ` Anshuman Khandual
2022-09-15 7:36 ` Oscar Salvador
2022-09-15 8:06 ` Miaohe Lin
2022-09-09 9:24 ` [PATCH 10/16] mm, memory_hotplug: remove obsolete generic_free_nodedata() Miaohe Lin
2022-09-09 11:32 ` David Hildenbrand
2022-09-13 8:57 ` Anshuman Khandual
2022-09-15 7:37 ` Oscar Salvador
2022-09-09 9:24 ` [PATCH 11/16] mm/page_alloc: make boot_nodestats static Miaohe Lin
2022-09-09 11:32 ` David Hildenbrand
2022-09-13 9:00 ` Anshuman Khandual
2022-09-15 7:38 ` Oscar Salvador
2022-09-09 9:24 ` [PATCH 12/16] mm/page_alloc: use helper macro SZ_1{K,M} Miaohe Lin
2022-09-09 11:34 ` David Hildenbrand
2022-09-09 19:44 ` Matthew Wilcox
2022-09-13 7:04 ` Miaohe Lin
2022-09-09 9:24 ` [PATCH 13/16] mm/page_alloc: init local variable buddy_pfn Miaohe Lin
2022-09-09 11:36 ` David Hildenbrand
2022-09-13 9:06 ` Anshuman Khandual
2022-09-15 7:42 ` Oscar Salvador
2022-09-09 9:24 ` [PATCH 14/16] mm/page_alloc: use costly_order in WARN_ON_ONCE_GFP() Miaohe Lin
2022-09-09 11:37 ` David Hildenbrand
2022-09-13 9:08 ` Anshuman Khandual
2022-09-15 7:45 ` Oscar Salvador
2022-09-09 9:24 ` [PATCH 15/16] mm/page_alloc: remove obsolete gfpflags_normal_context() Miaohe Lin
2022-09-09 11:37 ` David Hildenbrand
2022-09-13 11:12 ` Anshuman Khandual
2022-09-13 11:13 ` Anshuman Khandual
2022-09-15 7:48 ` Oscar Salvador
2022-09-09 9:24 ` [PATCH 16/16] mm/page_alloc: fix obsolete comment in deferred_pfn_valid() Miaohe Lin
2022-09-09 11:25 ` David Hildenbrand
2022-09-13 11:17 ` Anshuman Khandual
2022-09-15 7:50 ` Oscar Salvador
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