Thread (26 messages) 26 messages, 6 authors, 2016-02-04
STALE3771d

[PATCH] dax: dirty inode only if required

From: Dmitry Monakhov <hidden>
Date: 2016-02-04 14:02:02
Also in: linux-fsdevel, linux-mm, linux-xfs, lkml, nvdimm
Subsystem: filesystem direct access (dax), filesystems (vfs and infrastructure), the rest · Maintainers: Dan Williams, Alexander Viro, Christian Brauner, Linus Torvalds

Signed-off-by: Dmitry Monakhov <redacted>
---
 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

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