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Subject: Re: [virtio-dev] Re: [PATCH v12 7/8] mm: export symbol of next_zone and first_online_pgdat
On 07/13/2017 08:16 AM, Michael S. Tsirkin wrote:
On Wed, Jul 12, 2017 at 08:40:20PM +0800, Wei Wang wrote:This patch enables for_each_zone()/for_each_populated_zone() to be invoked by a kernel module.... for use by virtio balloon.
With this patch, other kernel modules can also use the for_each_zone(). Would it be better to claim it broader?
Signed-off-by: Wei Wang <wei.w.wang@intel.com>balloon seems to only use + for_each_populated_zone(zone) + for_each_migratetype_order(order, type)
Yes. using for_each_populated_zone() requires the following export. Best, Wei
--- mm/mmzone.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/mm/mmzone.c b/mm/mmzone.c index a51c0a6..08a2a3a 100644 --- a/mm/mmzone.c +++ b/mm/mmzone.c @@ -13,6 +13,7 @@ struct pglist_data *first_online_pgdat(void) { return NODE_DATA(first_online_node); } +EXPORT_SYMBOL_GPL(first_online_pgdat);struct pglist_data *next_online_pgdat(struct pglist_data *pgdat){ @@ -41,6 +42,7 @@ struct zone *next_zone(struct zone *zone) } return zone; } +EXPORT_SYMBOL_GPL(next_zone);static inline int zref_in_nodemask(struct zoneref *zref, nodemask_t *nodes){ -- 2.7.4--------------------------------------------------------------------- To unsubscribe, e-mail: virtio-dev-unsubscribe@lists.oasis-open.org For additional commands, e-mail: virtio-dev-help@lists.oasis-open.org
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