From: Baoquan He <bhe@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org, akpm@linux-foundation.org, rppt@kernel.org,
david@redhat.com, bhe@redhat.com, lkp@intel.com
Subject: [PATCH v5 3/5] mm: simplify parater of function memmap_init_zone()
Date: Fri, 22 Jan 2021 21:59:54 +0800 [thread overview]
Message-ID: <20210122135956.5946-4-bhe@redhat.com> (raw)
In-Reply-To: <20210122135956.5946-1-bhe@redhat.com>
As David suggested, simply passing 'struct zone *zone' is enough. We can
get all needed information from 'struct zone*' easily.
Suggested-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Baoquan He <bhe@redhat.com>
---
arch/ia64/mm/init.c | 12 +++++++-----
include/linux/mm.h | 3 +--
mm/page_alloc.c | 24 +++++++++++-------------
3 files changed, 19 insertions(+), 20 deletions(-)
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index c8e68e92beb3..88fb44895408 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -541,12 +541,14 @@ virtual_memmap_init(u64 start, u64 end, void *arg)
return 0;
}
-void __meminit
-memmap_init_zone(unsigned long size, int nid, unsigned long zone,
- unsigned long start_pfn)
+void __meminit memmap_init_zone(struct zone *zone)
{
+ int nid = zone_to_nid(zone), zone_id = zone_idx(zone);
+ unsigned long start_pfn = zone->zone_start_pfn;
+ unsigned long size = zone->spanned_pages;
+
if (!vmem_map) {
- memmap_init_range(size, nid, zone, start_pfn, start_pfn + size,
+ memmap_init_range(size, nid, zone_id, start_pfn, start_pfn + size,
MEMINIT_EARLY, NULL, MIGRATE_MOVABLE);
} else {
struct page *start;
@@ -556,7 +558,7 @@ memmap_init_zone(unsigned long size, int nid, unsigned long zone,
args.start = start;
args.end = start + size;
args.nid = nid;
- args.zone = zone;
+ args.zone = zone_id;
efi_memmap_walk(virtual_memmap_init, &args);
}
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 2395dc212221..073049bd0b29 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2401,8 +2401,7 @@ extern void set_dma_reserve(unsigned long new_dma_reserve);
extern void memmap_init_range(unsigned long, int, unsigned long,
unsigned long, unsigned long, enum meminit_context,
struct vmem_altmap *, int migratetype);
-extern void memmap_init_zone(unsigned long size, int nid,
- unsigned long zone, unsigned long range_start_pfn);
+extern void memmap_init_zone(struct zone *zone);
extern void setup_per_zone_wmarks(void);
extern int __meminit init_per_zone_wmark_min(void);
extern void mem_init(void);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 42a1d2d2a87d..cbb67d9c1b2a 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6254,23 +6254,21 @@ static void __meminit zone_init_free_lists(struct zone *zone)
}
}
-void __meminit __weak memmap_init_zone(unsigned long size, int nid,
- unsigned long zone,
- unsigned long range_start_pfn)
+void __meminit __weak memmap_init_zone(struct zone *zone)
{
+ unsigned long zone_start_pfn = zone->zone_start_pfn;
+ unsigned long zone_end_pfn = zone_start_pfn + zone->spanned_pages;
+ int i, nid = zone_to_nid(zone), zone_id = zone_idx(zone);
unsigned long start_pfn, end_pfn;
- unsigned long range_end_pfn = range_start_pfn + size;
- int i;
for_each_mem_pfn_range(i, nid, &start_pfn, &end_pfn, NULL) {
- start_pfn = clamp(start_pfn, range_start_pfn, range_end_pfn);
- end_pfn = clamp(end_pfn, range_start_pfn, range_end_pfn);
+ start_pfn = clamp(start_pfn, zone_start_pfn, zone_end_pfn);
+ end_pfn = clamp(end_pfn, zone_start_pfn, zone_end_pfn);
- if (end_pfn > start_pfn) {
- size = end_pfn - start_pfn;
- memmap_init_range(size, nid, zone, start_pfn, range_end_pfn,
- MEMINIT_EARLY, NULL, MIGRATE_MOVABLE);
- }
+ if (end_pfn > start_pfn)
+ memmap_init_range(end_pfn - start_pfn, nid,
+ zone_id, start_pfn, zone_end_pfn,
+ MEMINIT_EARLY, NULL, MIGRATE_MOVABLE);
}
}
@@ -6978,7 +6976,7 @@ static void __init free_area_init_core(struct pglist_data *pgdat)
set_pageblock_order();
setup_usemap(pgdat, zone, zone_start_pfn, size);
init_currently_empty_zone(zone, zone_start_pfn, size);
- memmap_init_zone(size, nid, j, zone_start_pfn);
+ memmap_init_zone(zone);
}
}
--
2.17.2
next prev parent reply other threads:[~2021-01-22 14:03 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-22 13:59 [PATCH v5 0/5] mm: clean up names and parameters of memmap_init_xxxx functions Baoquan He
2021-01-22 13:59 ` [PATCH v5 1/5] mm: fix prototype warning from kernel test robot Baoquan He
2021-01-22 15:38 ` David Hildenbrand
2021-01-22 13:59 ` [PATCH v5 2/5] mm: rename memmap_init() and memmap_init_zone() Baoquan He
2021-01-22 15:38 ` David Hildenbrand
2021-01-22 13:59 ` Baoquan He [this message]
2021-01-22 15:39 ` [PATCH v5 3/5] mm: simplify parater of function memmap_init_zone() David Hildenbrand
2021-01-22 13:59 ` [PATCH v5 4/5] mm: simplify parameter of setup_usemap() Baoquan He
2021-01-22 13:59 ` [PATCH v5 5/5] mm: remove unneeded local variable in free_area_init_core Baoquan He
2021-01-22 18:12 ` [PATCH v5 0/5] mm: clean up names and parameters of memmap_init_xxxx functions Mike Rapoport
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