The patch titled
page-allocator: clear N_HIGH_MEMORY map before se set it again
has been added to the -mm tree. Its filename is
page-allocator-clear-n_high_memory-map-before-se-set-it-again.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: page-allocator: clear N_HIGH_MEMORY map before se set it again
From: Yinghai Lu <yinghai@xxxxxxxxxx>
SRAT tables may contains nodes of very small size. The arch code may
decide to not activate such a node. However, currently the early boot
code sets N_HIGH_MEMORY for such nodes. These nodes therefore seem to be
active although these nodes have no present pages.
for 64bit N_HIGH_MEMORY == N_NORMAL_MEMORY, so that works for 64 bit too
Signed-off-by: Yinghai Lu <Yinghai@xxxxxxxxxx>
Tested-by: Jack Steiner <steiner@xxxxxxx>
Acked-by: Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx>
Cc: Mel Gorman <mel@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 5 +++++
1 file changed, 5 insertions(+)
diff -puN mm/page_alloc.c~page-allocator-clear-n_high_memory-map-before-se-set-it-again mm/page_alloc.c
--- a/mm/page_alloc.c~page-allocator-clear-n_high_memory-map-before-se-set-it-again
+++ a/mm/page_alloc.c
@@ -4222,6 +4222,11 @@ void __init free_area_init_nodes(unsigne
early_node_map[i].start_pfn,
early_node_map[i].end_pfn);
+ /*
+ * find_zone_movable_pfns_for_nodes/early_calculate_totalpages init
+ * that node_mask, clear it at first
+ */
+ nodes_clear(node_states[N_HIGH_MEMORY]);
/* Initialise every node */
mminit_verify_pageflags_layout();
setup_nr_node_ids();
_
Patches currently in -mm which might be from yinghai@xxxxxxxxxx are
linux-next.patch
page-allocator-clear-n_high_memory-map-before-se-set-it-again.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
