Patchwork [6/7] Update sysfs node routines for new sysfs memory directories

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Submitter Nathan Fontenot
Date July 12, 2010, 3:47 p.m.
Message ID <4C3B3900.6050000@austin.ibm.com>
Download mbox | patch
Permalink /patch/58630/
State Superseded
Headers show

Comments

Nathan Fontenot - July 12, 2010, 3:47 p.m.
This patch updates the node sysfs directory routines that create
links to the memory sections under each node.  This update makes
the node code aware that a memory sysfs directory can cover
multiple memory sections.

Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com>

---
 drivers/base/node.c |   12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

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Patch

Index: linux-2.6/drivers/base/node.c
===================================================================
--- linux-2.6.orig/drivers/base/node.c	2010-07-09 14:36:53.000000000 -0500
+++ linux-2.6/drivers/base/node.c	2010-07-09 14:38:22.000000000 -0500
@@ -346,8 +346,10 @@ 
 		return -EFAULT;
 	if (!node_online(nid))
 		return 0;
-	sect_start_pfn = section_nr_to_pfn(mem_blk->phys_index);
-	sect_end_pfn = sect_start_pfn + PAGES_PER_SECTION - 1;
+
+	sect_start_pfn = section_nr_to_pfn(mem_blk->start_phys_index);
+	sect_end_pfn = section_nr_to_pfn(mem_blk->end_phys_index);
+	sect_end_pfn += PAGES_PER_SECTION - 1;
 	for (pfn = sect_start_pfn; pfn <= sect_end_pfn; pfn++) {
 		int page_nid;
 
@@ -383,8 +385,10 @@ 
 	if (!unlinked_nodes)
 		return -ENOMEM;
 	nodes_clear(*unlinked_nodes);
-	sect_start_pfn = section_nr_to_pfn(mem_blk->phys_index);
-	sect_end_pfn = sect_start_pfn + PAGES_PER_SECTION - 1;
+
+	sect_start_pfn = section_nr_to_pfn(mem_blk->start_phys_index);
+	sect_end_pfn = section_nr_to_pfn(mem_blk->end_phys_index);
+	sect_end_pfn += PAGES_PER_SECTION - 1;
 	for (pfn = sect_start_pfn; pfn <= sect_end_pfn; pfn++) {
 		int nid;
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