Commit 1c44dbc8 authored Apr 07, 2014 by Monam Agarwal Committed by Linus Torvalds Apr 07, 2014

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>

parent 49d063cb

fs/proc/inode.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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 */