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authorGerald Schaefer <gerald.schaefer@de.ibm.com>2008-11-14 18:18:00 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2008-11-14 18:18:51 +0100
commitfb2e7c5e33b341699f139b2ed972dca0a463a670 (patch)
tree84363091311ffd8755a921ce3b34487c8ef3d8cc /arch/s390/kernel/setup.c
parent58e20d8d344b0ee083febb18c2b021d2427e56ca (diff)
[S390] Fix range for add_active_range() in setup_memory()
add_active_range() expects start_pfn + size as end_pfn value, i.e. not the pfn of the last page frame but the one behind that. We used the pfn of the last page frame so far, which can lead to a BUG_ON in move_freepages(), when the kernelcore parameter is specified (page_zone(start_page) != page_zone(end_page)). Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/setup.c')
-rw-r--r--arch/s390/kernel/setup.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 62122bad1e3..400b040df7f 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -604,13 +604,13 @@ setup_memory(void)
if (memory_chunk[i].type != CHUNK_READ_WRITE)
continue;
start_chunk = PFN_DOWN(memory_chunk[i].addr);
- end_chunk = start_chunk + PFN_DOWN(memory_chunk[i].size) - 1;
+ end_chunk = start_chunk + PFN_DOWN(memory_chunk[i].size);
end_chunk = min(end_chunk, end_pfn);
if (start_chunk >= end_chunk)
continue;
add_active_range(0, start_chunk, end_chunk);
pfn = max(start_chunk, start_pfn);
- for (; pfn <= end_chunk; pfn++)
+ for (; pfn < end_chunk; pfn++)
page_set_storage_key(PFN_PHYS(pfn), PAGE_DEFAULT_KEY);
}