[PATCH] dax: dirty inode only if required

[Dmitry Monakhov]

Signed-off-by: Dmitry Monakhov <dmonak...@openvz.org>
---
 fs/dax.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/dax.c b/fs/dax.c
index e0e9358..fc2e314 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -358,7 +358,8 @@ static int dax_radix_entry(struct address_space *mapping, 
pgoff_t index,
        void *entry;
 
        WARN_ON_ONCE(pmd_entry && !dirty);
-       __mark_inode_dirty(mapping->host, I_DIRTY_PAGES);
+       if (dirty)
+               __mark_inode_dirty(mapping->host, I_DIRTY_PAGES);
 
        spin_lock_irq(&mapping->tree_lock);
 
-- 
1.8.3.1