[PATCH] fix WANT_PAGE_VIRTUAL in memmap_init
I spotted this issue while in memmap_init last week. I can't say the
change has any test coverage by me. start_pfn was formerly used in main
"for" loop. The fix is replace start_pfn with pfn.
Signed-off-by: Bob Picco <bob.picco@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 7ee675a..3c9f7f8 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1667,9 +1667,8 @@
#ifdef WANT_PAGE_VIRTUAL
/* The shift won't overflow because ZONE_NORMAL is below 4G. */
if (!is_highmem_idx(zone))
- set_page_address(page, __va(start_pfn << PAGE_SHIFT));
+ set_page_address(page, __va(pfn << PAGE_SHIFT));
#endif
- start_pfn++;
}
}