+ dax-dirty-inode-only-if-required.patch added to -mm tree

+ dax-dirty-inode-only-if-required.patch added to -mm tree

[akpm]

The patch titled
     Subject: dax: dirty inode only if required
has been added to the -mm tree.  Its filename is
     dax-dirty-inode-only-if-required.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/dax-dirty-inode-only-if-required.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/dax-dirty-inode-only-if-required.patch

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------------------------------------------------------
From: Dmitry Monakhov <dmonakhov@openvz.org>
Subject: dax: dirty inode only if required

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/dax.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff -puN fs/dax.c~dax-dirty-inode-only-if-required fs/dax.c
--- a/fs/dax.c~dax-dirty-inode-only-if-required
+++ a/fs/dax.c
@@ -358,7 +358,8 @@ static int dax_radix_entry(struct addres
 	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);
 
_

Patches currently in -mm which might be from dmonakhov@openvz.org are

dax-dirty-inode-only-if-required.patch