Messages in this thread Patch in this message | | | From | Monam Agarwal <> | Subject | [PATCH] drivers/md: Use RCU_INIT_POINTER(x, NULL) in dm.c | Date | Sun, 23 Mar 2014 23:58:27 +0530 |
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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@gmail.com> --- drivers/md/dm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 8c53b09..804412a 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -2172,7 +2172,7 @@ static struct dm_table *__unbind(struct mapped_device *md) return NULL; dm_table_event_callback(map, NULL, NULL); - rcu_assign_pointer(md->map, NULL); + RCU_INIT_POINTER(md->map, NULL); dm_sync_table(md); return map; -- 1.7.9.5
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