[PATCH] block: Use RCU_INIT_POINTER(x, NULL) in partition-generic.c

From: Monam Agarwal
Date: Sat Mar 22 2014 - 16:32:30 EST

This patch replaces 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@xxxxxxxxx>
block/partition-generic.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/block/partition-generic.c b/block/partition-generic.c
index 789cdea..f1ef057 100644
--- a/block/partition-generic.c
+++ b/block/partition-generic.c
@@ -249,8 +249,8 @@ void delete_partition(struct gendisk *disk, int partno)
if (!part)

- rcu_assign_pointer(ptbl->part[partno], NULL);
- rcu_assign_pointer(ptbl->last_lookup, NULL);
+ RCU_INIT_POINTER(ptbl->part[partno], NULL);
+ RCU_INIT_POINTER(ptbl->last_lookup, NULL);

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