From: Sha Zhengju <handai....@taobao.com>

Following we will begin to add memcg dirty page accounting around 
__set_page_dirty_
{buffers,nobuffers} in vfs layer, so we'd better use vfs interface to avoid 
exporting
those details to filesystems.

Signed-off-by: Sha Zhengju <handai....@taobao.com>
---
 fs/ceph/addr.c |   13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 3e68ac1..1445bf1 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -76,7 +76,7 @@ static int ceph_set_page_dirty(struct page *page)
        if (unlikely(!mapping))
                return !TestSetPageDirty(page);
 
-       if (TestSetPageDirty(page)) {
+       if (!__set_page_dirty_nobuffers(page)) {
                dout("%p set_page_dirty %p idx %lu -- already dirty\n",
                     mapping->host, page, page->index);
                return 0;
@@ -107,14 +107,7 @@ static int ceph_set_page_dirty(struct page *page)
             snapc, snapc->seq, snapc->num_snaps);
        spin_unlock(&ci->i_ceph_lock);
 
-       /* now adjust page */
-       spin_lock_irq(&mapping->tree_lock);
        if (page->mapping) {    /* Race with truncate? */
-               WARN_ON_ONCE(!PageUptodate(page));
-               account_page_dirtied(page, page->mapping);
-               radix_tree_tag_set(&mapping->page_tree,
-                               page_index(page), PAGECACHE_TAG_DIRTY);
-
                /*
                 * Reference snap context in page->private.  Also set
                 * PagePrivate so that we get invalidatepage callback.
@@ -126,14 +119,10 @@ static int ceph_set_page_dirty(struct page *page)
                undo = 1;
        }
 
-       spin_unlock_irq(&mapping->tree_lock);
-
        if (undo)
                /* whoops, we failed to dirty the page */
                ceph_put_wrbuffer_cap_refs(ci, 1, snapc);
 
-       __mark_inode_dirty(mapping->host, I_DIRTY_PAGES);
-
        BUG_ON(!PageDirty(page));
        return 1;
 }
-- 
1.7.9.5

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