linux-kernel - linux-next: manual merge of the vfs tree with Linus' tree

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Date:	Thu, 5 Sep 2013 12:59:24 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Al Viro <viro@...IV.linux.org.uk>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Waiman Long <Waiman.Long@...com>,
	Linus <torvalds@...ux-foundation.org>,
	"Yan, Zheng" <zheng.z.yan@...el.com>
Subject: linux-next: manual merge of the vfs tree with Linus' tree

Hi Al,

Today's linux-next merge of the vfs tree got a conflict in fs/dcache.c
between commit 98474236f72e ("vfs: make the dentry cache use the lockref
infrastructure") from Linus' tree and commit 590fb51f1cf9 ("vfs: call
d_op->d_prune() before unhashing dentry") from the vfs tree.

I fixed it up (see below) and can carry the fix as necessary (no action
is required).

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au

diff --cc fs/dcache.c
index 96655f4,2e5f9ca..0000000
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@@ -726,7 -718,15 +726,15 @@@ restart
  	spin_lock(&inode->i_lock);
  	hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) {
  		spin_lock(&dentry->d_lock);
 -		if (!dentry->d_count) {
 +		if (!dentry->d_lockref.count) {
+ 			/*
+ 			 * inform the fs via d_prune that this dentry
+ 			 * is about to be unhashed and destroyed.
+ 			 */
+ 			if ((dentry->d_flags & DCACHE_OP_PRUNE) &&
+ 			    !d_unhashed(dentry))
+ 				dentry->d_op->d_prune(dentry);
+ 
  			__dget_dlock(dentry);
  			__d_drop(dentry);
  			spin_unlock(&dentry->d_lock);

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