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Subject[PATCH v2 1/3] mm/page_alloc: Don't pass pfn to free_unref_page_commit()
Date
free_unref_page_commit() doesn't make use of its pfn argument, so get
rid of it.

Signed-off-by: Nicolas Saenz Julienne <nsaenzju@redhat.com>
---
mm/page_alloc.c | 17 ++++++-----------
1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index c5952749ad40..9ef03dfb8f95 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3355,8 +3355,8 @@ static int nr_pcp_high(struct per_cpu_pages *pcp, struct zone *zone)
return min(READ_ONCE(pcp->batch) << 2, high);
}

-static void free_unref_page_commit(struct page *page, unsigned long pfn,
- int migratetype, unsigned int order)
+static void free_unref_page_commit(struct page *page, int migratetype,
+ unsigned int order)
{
struct zone *zone = page_zone(page);
struct per_cpu_pages *pcp;
@@ -3405,7 +3405,7 @@ void free_unref_page(struct page *page, unsigned int order)
}

local_lock_irqsave(&pagesets.lock, flags);
- free_unref_page_commit(page, pfn, migratetype, order);
+ free_unref_page_commit(page, migratetype, order);
local_unlock_irqrestore(&pagesets.lock, flags);
}

@@ -3415,13 +3415,13 @@ void free_unref_page(struct page *page, unsigned int order)
void free_unref_page_list(struct list_head *list)
{
struct page *page, *next;
- unsigned long flags, pfn;
+ unsigned long flags;
int batch_count = 0;
int migratetype;

/* Prepare pages for freeing */
list_for_each_entry_safe(page, next, list, lru) {
- pfn = page_to_pfn(page);
+ unsigned long pfn = page_to_pfn(page);
if (!free_unref_page_prepare(page, pfn, 0)) {
list_del(&page->lru);
continue;
@@ -3437,15 +3437,10 @@ void free_unref_page_list(struct list_head *list)
free_one_page(page_zone(page), page, pfn, 0, migratetype, FPI_NONE);
continue;
}
-
- set_page_private(page, pfn);
}

local_lock_irqsave(&pagesets.lock, flags);
list_for_each_entry_safe(page, next, list, lru) {
- pfn = page_private(page);
- set_page_private(page, 0);
-
/*
* Non-isolated types over MIGRATE_PCPTYPES get added
* to the MIGRATE_MOVABLE pcp list.
@@ -3455,7 +3450,7 @@ void free_unref_page_list(struct list_head *list)
migratetype = MIGRATE_MOVABLE;

trace_mm_page_free_batched(page);
- free_unref_page_commit(page, pfn, migratetype, 0);
+ free_unref_page_commit(page, migratetype, 0);

/*
* Guard against excessive IRQ disabled times when we get
--
2.33.1
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