linux-kernel - [PATCH] mm: remove find_max_pfn_with_active

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Date:	Sun, 27 Jul 2008 17:54:33 -0700
From:	Yinghai Lu <yhlu.kernel@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] mm: remove find_max_pfn_with_active_regions


no user now

also print out info about adding/removing active region

Signed-off-by: Yinghai Lu <yhlu.kernel@...il.com>

---
 include/linux/mm.h |    1 -
 mm/page_alloc.c    |   22 ++--------------------
 2 files changed, 2 insertions(+), 21 deletions(-)

Index: linux-2.6/include/linux/mm.h
===================================================================
--- linux-2.6.orig/include/linux/mm.h
+++ linux-2.6/include/linux/mm.h
@@ -1036,7 +1036,6 @@ extern unsigned long absent_pages_in_ran
 extern void get_pfn_range_for_nid(unsigned int nid,
 			unsigned long *start_pfn, unsigned long *end_pfn);
 extern unsigned long find_min_pfn_with_active_regions(void);
-extern unsigned long find_max_pfn_with_active_regions(void);
 extern void free_bootmem_with_active_regions(int nid,
 						unsigned long max_low_pfn);
 typedef int (*work_fn_t)(unsigned long, unsigned long, void *);
Index: linux-2.6/mm/page_alloc.c
===================================================================
--- linux-2.6.orig/mm/page_alloc.c
+++ linux-2.6/mm/page_alloc.c
@@ -3572,8 +3572,7 @@ void __init add_active_range(unsigned in
 {
 	int i;
 
-	mminit_dprintk(MMINIT_TRACE, "memory_register",
-			"Entering add_active_range(%d, %#lx, %#lx) "
+	printk(KERN_INFO "Adding active range (%d, %#lx, %#lx) "
 			"%d entries of %d used\n",
 			nid, start_pfn, end_pfn,
 			nr_nodemap_entries, MAX_ACTIVE_REGIONS);
@@ -3635,7 +3634,7 @@ void __init remove_active_range(unsigned
 	int i, j;
 	int removed = 0;
 
-	printk(KERN_DEBUG "remove_active_range (%d, %lu, %lu)\n",
+	printk(KERN_INFO "Removing active range (%d, %#lx, %#lx)\n",
 			  nid, start_pfn, end_pfn);
 
 	/* Find the old active region end and shrink */
@@ -3753,23 +3752,6 @@ unsigned long __init find_min_pfn_with_a
 	return find_min_pfn_for_node(MAX_NUMNODES);
 }
 
-/**
- * find_max_pfn_with_active_regions - Find the maximum PFN registered
- *
- * It returns the maximum PFN based on information provided via
- * add_active_range().
- */
-unsigned long __init find_max_pfn_with_active_regions(void)
-{
-	int i;
-	unsigned long max_pfn = 0;
-
-	for (i = 0; i < nr_nodemap_entries; i++)
-		max_pfn = max(max_pfn, early_node_map[i].end_pfn);
-
-	return max_pfn;
-}
-
 /*
  * early_calculate_totalpages()
  * Sum pages in active regions for movable zone.
--
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