From: Monam Agarwal <monamagarwal123@gmail.com>
Date: Mon, 7 Apr 2014 22:38:35 +0000 (-0700)
Subject: fs/proc/inode.c: use RCU_INIT_POINTER(x, NULL)
X-Git-Tag: v4.0~2074^2~69
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1c44dbc82f75aabc5de95da92b304393a94751fc;p=platform%2Fkernel%2Flinux-amlogic.git

fs/proc/inode.c: use RCU_INIT_POINTER(x, NULL)

Replace rcu_assign_pointer(x, NULL) with RCU_INIT_POINTER(x, NULL)

The rcu_assign_pointer() ensures that the initialization of a structure
is carried out before storing a pointer to that structure.  And in the
case of the NULL pointer, there is no structure to initialize.  So,
rcu_assign_pointer(p, NULL) can be safely converted to
RCU_INIT_POINTER(p, NULL)

Signed-off-by: Monam Agarwal <monamagarwal123@gmail.com>
Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 8f20e34..0adbc02 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -47,7 +47,7 @@ static void proc_evict_inode(struct inode *inode)
 		pde_put(de);
 	head = PROC_I(inode)->sysctl;
 	if (head) {
-		rcu_assign_pointer(PROC_I(inode)->sysctl, NULL);
+		RCU_INIT_POINTER(PROC_I(inode)->sysctl, NULL);
 		sysctl_head_put(head);
 	}
 	/* Release any associated namespace */