[PATCH] dcache usage cleanups

This cleans up the dcache code to always use the proper dcache functions
(d_unhashed and __d_drop) instead of accessing the dentry lists
directly.

In other words: use "d_unhashed(dentry)" instead of doing a manual
"list_empty(&dentry->d_hash)" test.  And use "__d_drop(dentry)" instead
of doing "list_del_init(&dentry->d_hash)" by hand.

This will help the dcache-rcu patches.

1 files changed, 2 insertions, 2 deletions

diff --git a/kernel/exit.c b/kernel/exit.c
index 038da036771b..b923fd64591b 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -47,9 +47,9 @@ static struct dentry * __unhash_process(struct task_struct *p)
 	proc_dentry = p->proc_dentry;
 	if (unlikely(proc_dentry != NULL)) {
 		spin_lock(&dcache_lock);
-		if (!list_empty(&proc_dentry->d_hash)) {
+		if (!d_unhashed(proc_dentry)) {
 			dget_locked(proc_dentry);
-			list_del_init(&proc_dentry->d_hash);
+			__d_drop(proc_dentry);
 		} else
 			proc_dentry = NULL;
 		spin_unlock(&dcache_lock);