From: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> page_reference manipulation functions are introduced to track down reference count change of the page. Use it instead of direct modification of _count. Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> --- drivers/net/ethernet/cavium/thunder/nicvf_queues.c | 2 +- drivers/net/ethernet/qlogic/qede/qede_main.c | 2 +- mm/filemap.c | 2 +- net/wireless/util.c | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c index fa05e34..8acd7c0 100644 --- a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c +++ b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c @@ -23,7 +23,7 @@ static void nicvf_get_page(struct nicvf *nic) if (!nic->rb_pageref || !nic->rb_page) return; - atomic_add(nic->rb_pageref, &nic->rb_page->_count); + page_ref_add(nic->rb_page, nic->rb_pageref); nic->rb_pageref = 0; } diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c index 518af32..394c97ff 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_main.c +++ b/drivers/net/ethernet/qlogic/qede/qede_main.c @@ -791,7 +791,7 @@ static inline int qede_realloc_rx_buffer(struct qede_dev *edev, * network stack to take the ownership of the page * which can be recycled multiple times by the driver. */ - atomic_inc(&curr_cons->data->_count); + page_ref_inc(curr_cons->data); qede_reuse_page(edev, rxq, curr_cons); } diff --git a/mm/filemap.c b/mm/filemap.c index a8c69c8..0ebd326 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -213,7 +213,7 @@ void __delete_from_page_cache(struct page *page, void *shadow) * some other bad page check should catch it later. */ page_mapcount_reset(page); - atomic_sub(mapcount, &page->_count); + page_ref_sub(page, mapcount); } } diff --git a/net/wireless/util.c b/net/wireless/util.c index 9f440a9..e22432a 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -651,7 +651,7 @@ __frame_add_frag(struct sk_buff *skb, struct page *page, struct skb_shared_info *sh = skb_shinfo(skb); int page_offset; - atomic_inc(&page->_count); + page_ref_inc(page); page_offset = ptr - page_address(page); skb_add_rx_frag(skb, sh->nr_frags, page, page_offset, len, size); } -- 1.9.1 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>