1 files changed, 23 insertions, 4 deletions

diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 689fb608648e..bccfec8343c5 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -219,13 +219,32 @@ static int nilfs_writepage(struct page *page, struct writeback_control *wbc)
 
 static int nilfs_set_page_dirty(struct page *page)
 {
-        int ret = __set_page_dirty_buffers(page);
+        int ret = __set_page_dirty_nobuffers(page);
 
-        if (ret) {
+        if (page_has_buffers(page)) {
                 struct inode *inode = page->mapping->host;
-                unsigned nr_dirty = 1 << (PAGE_SHIFT - inode->i_blkbits);
+                unsigned nr_dirty = 0;
+                struct buffer_head *bh, *head;
 
-                nilfs_set_file_dirty(inode, nr_dirty);
+                /*
+                 * This page is locked by callers, and no other thread
+                 * concurrently marks its buffers dirty since they are
+                 * only dirtied through routines in fs/buffer.c in
+                 * which call sites of mark_buffer_dirty are protected
+                 * by page lock.
+                 */
+                bh = head = page_buffers(page);
+                do {
+                        /* Do not mark hole blocks dirty */
+                        if (buffer_dirty(bh) || !buffer_mapped(bh))
+                                continue;
+
+                        set_buffer_dirty(bh);
+                        nr_dirty++;
+                } while (bh = bh->b_this_page, bh != head);
+
+                if (nr_dirty)
+                        nilfs_set_file_dirty(inode, nr_dirty);
         }
         return ret;
 }