Commit 6d061f9f authored by Joonsoo Kim's avatar Joonsoo Kim Committed by Linus Torvalds

mm/page_ref: use page_ref helper instead of direct modification of _count

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: default avatarJoonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: default avatarVlastimil Babka <vbabka@suse.cz>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Sunil Goutham <sgoutham@cavium.com>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 43efd3ea
......@@ -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;
}
......
......@@ -920,7 +920,7 @@ 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);
}
......
......@@ -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);
}
}
......
......@@ -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);
}
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment