From: Huaisheng HS1 Ye <yehs1@lenovo.com>
To: "akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Cc: "mhocko@suse.com" <mhocko@suse.com>,
"willy@infradead.org" <willy@infradead.org>,
"vbabka@suse.cz" <vbabka@suse.cz>,
"mgorman@techsingularity.net" <mgorman@techsingularity.net>,
"pasha.tatashin@oracle.com" <pasha.tatashin@oracle.com>,
"alexander.levin@verizon.com" <alexander.levin@verizon.com>,
"hannes@cmpxchg.org" <hannes@cmpxchg.org>,
"penguin-kernel@I-love.SAKURA.ne.jp"
<penguin-kernel@I-love.SAKURA.ne.jp>,
"colyli@suse.de" <colyli@suse.de>,
NingTing Cheng <chengnt@lenovo.com>,
Ocean HY1 He <hehy1@lenovo.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-nvdimm@lists.01.org" <linux-nvdimm@lists.01.org>
Subject: [External] [RFC PATCH v1 2/6] mm/page_alloc.c: get pfn range with flags of memblock
Date: Tue, 8 May 2018 02:32:47 +0000 [thread overview]
Message-ID: <HK2PR03MB1684A17E526A6E93444D871E929A0@HK2PR03MB1684.apcprd03.prod.outlook.com> (raw)
In-Reply-To: <1525746628-114136-3-git-send-email-yehs1@lenovo.com>
This is used to expand the interface of get_pfn_range_for_nid with
flags of memblock, so mm can get pfn range with special flags.
Signed-off-by: Huaisheng Ye <yehs1@lenovo.com>
Signed-off-by: Ocean He <hehy1@lenovo.com>
---
include/linux/mm.h | 4 ++++
mm/page_alloc.c | 17 ++++++++++++++++-
2 files changed, 20 insertions(+), 1 deletion(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index ad06d42..8abf9c9 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2046,6 +2046,10 @@ extern unsigned long absent_pages_in_range(unsigned long start_pfn,
unsigned long end_pfn);
extern void get_pfn_range_for_nid(unsigned int nid,
unsigned long *start_pfn, unsigned long *end_pfn);
+extern void get_pfn_range_for_nid_with_flags(unsigned int nid,
+ unsigned long *start_pfn,
+ unsigned long *end_pfn,
+ unsigned long flags);
extern unsigned long find_min_pfn_with_active_regions(void);
extern void free_bootmem_with_active_regions(int nid,
unsigned long max_low_pfn);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 1741dd2..266c065 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5705,13 +5705,28 @@ void __init sparse_memory_present_with_active_regions(int nid)
void __meminit get_pfn_range_for_nid(unsigned int nid,
unsigned long *start_pfn, unsigned long *end_pfn)
{
+ get_pfn_range_for_nid_with_flags(nid, start_pfn, end_pfn,
+ MEMBLOCK_MAX_TYPE);
+}
+
+/*
+ * If MAX_NUMNODES, includes all node memmory regions.
+ * If MEMBLOCK_MAX_TYPE, includes all memory regions with or without Flags.
+ */
+
+void __meminit get_pfn_range_for_nid_with_flags(unsigned int nid,
+ unsigned long *start_pfn,
+ unsigned long *end_pfn,
+ unsigned long flags)
+{
unsigned long this_start_pfn, this_end_pfn;
int i;
*start_pfn = -1UL;
*end_pfn = 0;
- for_each_mem_pfn_range(i, nid, &this_start_pfn, &this_end_pfn, NULL) {
+ for_each_mem_pfn_range_with_flags(i, nid, &this_start_pfn,
+ &this_end_pfn, NULL, flags) {
*start_pfn = min(*start_pfn, this_start_pfn);
*end_pfn = max(*end_pfn, this_end_pfn);
}
--
1.8.3.1
next prev parent reply other threads:[~2018-05-08 2:33 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-08 2:30 [RFC PATCH v1 0/6] use mm to manage NVDIMM (pmem) zone Huaisheng Ye
[not found] ` <1525746628-114136-2-git-send-email-yehs1@lenovo.com>
2018-05-08 2:30 ` [External] [RFC PATCH v1 1/6] mm/memblock: Expand definition of flags to support NVDIMM Huaisheng HS1 Ye
2018-05-08 2:30 ` [RFC PATCH v1 4/6] arch/x86/kernel: mark NVDIMM regions from e820_table Huaisheng Ye
[not found] ` <1525746628-114136-3-git-send-email-yehs1@lenovo.com>
2018-05-08 2:32 ` Huaisheng HS1 Ye [this message]
[not found] ` <1525746628-114136-4-git-send-email-yehs1@lenovo.com>
2018-05-08 2:33 ` [External] [RFC PATCH v1 3/6] mm, zone_type: create ZONE_NVM and fill into GFP_ZONE_TABLE Huaisheng HS1 Ye
2018-05-08 4:43 ` Randy Dunlap
2018-05-09 4:22 ` Huaisheng HS1 Ye
2018-05-09 11:47 ` Michal Hocko
2018-05-09 14:04 ` Huaisheng HS1 Ye
2018-05-09 20:56 ` Michal Hocko
2018-05-10 3:53 ` Huaisheng HS1 Ye
[not found] ` <1525746628-114136-6-git-send-email-yehs1@lenovo.com>
2018-05-08 2:34 ` [External] [RFC PATCH v1 5/6] mm: get zone spanned pages separately for DRAM and NVDIMM Huaisheng HS1 Ye
[not found] ` <1525746628-114136-7-git-send-email-yehs1@lenovo.com>
2018-05-08 2:35 ` [External] [RFC PATCH v1 6/6] arch/x86/mm: create page table mapping for DRAM and NVDIMM both Huaisheng HS1 Ye
2018-05-10 7:57 ` [RFC PATCH v1 0/6] use mm to manage NVDIMM (pmem) zone Michal Hocko
2018-05-10 8:41 ` Michal Hocko
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