ipc: fix wrong comments
This patch fixes the wrong / obsolete comments in the ipc code. Also adds
a missing lock around ipc_get_maxid() in shm_get_stat().
Signed-off-by: Nadia Derbey <Nadia.Derbey@bull.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/ipc/sem.c b/ipc/sem.c
index 446c8f5..45c7e573 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -228,6 +228,14 @@
*/
#define IN_WAKEUP 1
+/**
+ * newary - Create a new semaphore set
+ * @ns: namespace
+ * @params: ptr to the structure that contains key, semflg and nsems
+ *
+ * Called with sem_ids.mutex held
+ */
+
static int newary(struct ipc_namespace *ns, struct ipc_params *params)
{
int id;
@@ -281,6 +289,9 @@
}
+/*
+ * Called with sem_ids.mutex and ipcp locked.
+ */
static inline int sem_security(struct kern_ipc_perm *ipcp, int semflg)
{
struct sem_array *sma;
@@ -289,6 +300,9 @@
return security_sem_associate(sma, semflg);
}
+/*
+ * Called with sem_ids.mutex and ipcp locked.
+ */
static inline int sem_more_checks(struct kern_ipc_perm *ipcp,
struct ipc_params *params)
{