Eric Lee / linux-smarc-t335x-v3.2

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Commit 33c5d3d64589c5d379db5a5615735f6d08438369

Authored by KAMEZAWA Hiroyuki
Committed by Linus Torvalds
1 parent 6cdfcc275e
Exists in master and in 4 other branches v3.2_AM335xPSP_04.06.00.11, v3.2_NEWT335xPSP_04.06.00.11, v3.2_SBC_SMARTMEN, v3.2_SMARCT335xPSP_04.06.00.11

memcg: bugfix for memory hotplug 

The start pfn calculation in page_cgroup's memory hotplug notifier chain
is wrong.

Tested-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Showing 1 changed file with 2 additions and 2 deletions Side-by-side Diff

... ... @@ -165,7 +165,7 @@
165 165 unsigned long start, end, pfn;
166 166 int fail = 0;
167 167  
168   - start = start_pfn & (PAGES_PER_SECTION - 1);
  168 + start = start_pfn & ~(PAGES_PER_SECTION - 1);
169 169 end = ALIGN(start_pfn + nr_pages, PAGES_PER_SECTION);
170 170  
171 171 for (pfn = start; !fail && pfn < end; pfn += PAGES_PER_SECTION) {
... ... @@ -188,7 +188,7 @@
188 188 {
189 189 unsigned long start, end, pfn;
190 190  
191   - start = start_pfn & (PAGES_PER_SECTION - 1);
  191 + start = start_pfn & ~(PAGES_PER_SECTION - 1);
192 192 end = ALIGN(start_pfn + nr_pages, PAGES_PER_SECTION);
193 193  
194 194 for (pfn = start; pfn < end; pfn += PAGES_PER_SECTION)