linux-kernel - [PATCH 13/17] orangefs: skip inode writeout if nothing to write

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Message-Id: <20180917201054.3530-14-martin@omnibond.com>
Date:   Mon, 17 Sep 2018 20:10:50 +0000
From:   Martin Brandenburg <martin@...ibond.com>
To:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        devel@...ts.orangefs.org
Cc:     Martin Brandenburg <martin@...ibond.com>
Subject: [PATCH 13/17] orangefs: skip inode writeout if nothing to write

Would happen if an inode is dirty but whatever happened is not something
that can be written out to OrangeFS.

Signed-off-by: Martin Brandenburg <martin@...ibond.com>
---
 fs/orangefs/orangefs-utils.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/orangefs/orangefs-utils.c b/fs/orangefs/orangefs-utils.c
index 902ebd1599e1..de63bb710e38 100644
--- a/fs/orangefs/orangefs-utils.c
+++ b/fs/orangefs/orangefs-utils.c
@@ -435,6 +435,11 @@ int orangefs_inode_setattr(struct inode *inode)
 	copy_attributes_from_inode(inode,
 	    &new_op->upcall.req.setattr.attributes);
 	orangefs_inode->attr_valid = 0;
+	if (!new_op->upcall.req.setattr.attributes.mask) {
+		spin_unlock(&inode->i_lock);
+		op_release(new_op);
+		return 0;
+	}
 	spin_unlock(&inode->i_lock);
 
 	ret = service_operation(new_op, __func__,
-- 
2.19.0