Hi Yasuaki,
FYI, there are new compile warnings show up in
commit: d760afd4d2570653891f94e13b848e97150dc5a6 memory-hotplug: suppress "Trying to free nonexistent resource <XXXXXXXXXXXXXXXX-YYYYYYYYYYYYYYYY>" warning
config: powerpc-allmodconfig
All warnings:
arch/powerpc/platforms/pseries/hotplug-memory.c: In function 'pseries_remove_memblock':
arch/powerpc/platforms/pseries/hotplug-memory.c:103:17: warning: unused variable 'pfn' [-Wunused-variable]
vim +103 arch/powerpc/platforms/pseries/hotplug-memory.c
04badfd2 Nathan Fontenot 2008-10-13 87 return 0;
04badfd2 Nathan Fontenot 2008-10-13 88 }
04badfd2 Nathan Fontenot 2008-10-13 89
57b53926 Badari Pulavarty 2008-04-18 90 zone = page_zone(pfn_to_page(start_pfn));
57b53926 Badari Pulavarty 2008-04-18 91
57b53926 Badari Pulavarty 2008-04-18 92 /*
57b53926 Badari Pulavarty 2008-04-18 93 * Remove section mappings and sysfs entries for the
57b53926 Badari Pulavarty 2008-04-18 94 * section of the memory we are removing.
57b53926 Badari Pulavarty 2008-04-18 95 *
57b53926 Badari Pulavarty 2008-04-18 96 * NOTE: Ideally, this should be done in generic code like
57b53926 Badari Pulavarty 2008-04-18 97 * remove_memory(). But remove_memory() gets called by writing
57b53926 Badari Pulavarty 2008-04-18 98 * to sysfs "state" file and we can't remove sysfs entries
57b53926 Badari Pulavarty 2008-04-18 99 * while writing to it. So we have to defer it to here.
57b53926 Badari Pulavarty 2008-04-18 100 */
d760afd4 Yasuaki Ishimatsu 2012-10-08 101 sections_to_remove = (memblock_size >> PAGE_SHIFT) / PAGES_PER_SECTION;
d760afd4 Yasuaki Ishimatsu 2012-10-08 102 for (i = 0; i < sections_to_remove; i++) {
d760afd4 Yasuaki Ishimatsu 2012-10-08 @103 unsigned long pfn = start_pfn + i * PAGES_PER_SECTION;
d760afd4 Yasuaki Ishimatsu 2012-10-08 104 ret = __remove_pages(zone, start_pfn, PAGES_PER_SECTION);
d760afd4 Yasuaki Ishimatsu 2012-10-08 105 if (ret)
d760afd4 Yasuaki Ishimatsu 2012-10-08 106 return ret;
d760afd4 Yasuaki Ishimatsu 2012-10-08 107 }
57b53926 Badari Pulavarty 2008-04-18 108
57b53926 Badari Pulavarty 2008-04-18 109 /*
98d5c21c Badari Pulavarty 2008-04-18 110 * Update memory regions for memory remove
98d5c21c Badari Pulavarty 2008-04-18 111 */
---
0-DAY kernel build testing backend Open Source Technology Center
Fengguang Wu, Yuanhan Liu Intel Corporation
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