mm: merge populate and nopage into fault (fixes nonlinear)

[safe/jmp/linux-2.6] / ipc / sem.c

diff --git a/ipc/sem.c b/ipc/sem.c
index 0dafcc4..b676fef 100644 (file)
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -75,7 +75,6 @@
 #include <linux/init.h>
 #include <linux/proc_fs.h>
 #include <linux/time.h>
-#include <linux/smp_lock.h>
 #include <linux/security.h>
 #include <linux/syscalls.h>
 #include <linux/audit.h>
@@ -122,7 +121,7 @@ static int sysvipc_sem_proc_show(struct seq_file *s, void *it);
 #define sc_semopm      sem_ctls[2]
 #define sc_semmni      sem_ctls[3]
 
-static void __ipc_init __sem_init_ns(struct ipc_namespace *ns, struct ipc_ids *ids)
+static void __sem_init_ns(struct ipc_namespace *ns, struct ipc_ids *ids)
 {
        ns->ids[IPC_SEM_IDS] = ids;
        ns->sc_semmsl = SEMMSL;
@@ -133,7 +132,6 @@ static void __ipc_init __sem_init_ns(struct ipc_namespace *ns, struct ipc_ids *i
        ipc_init_ids(ids, ns->sc_semmni);
 }
 
-#ifdef CONFIG_IPC_NS
 int sem_init_ns(struct ipc_namespace *ns)
 {
        struct ipc_ids *ids;
@@ -161,10 +159,10 @@ void sem_exit_ns(struct ipc_namespace *ns)
        }
        mutex_unlock(&sem_ids(ns).mutex);
 
+       ipc_fini_ids(ns->ids[IPC_SEM_IDS]);
        kfree(ns->ids[IPC_SEM_IDS]);
        ns->ids[IPC_SEM_IDS] = NULL;
 }
-#endif
 
 void __init sem_init (void)
 {
@@ -858,7 +856,7 @@ static int semctl_down(struct ipc_namespace *ns, int semid, int semnum,
 {
        struct sem_array *sma;
        int err;
-       struct sem_setbuf setbuf;
+       struct sem_setbuf uninitialized_var(setbuf);
        struct kern_ipc_perm *ipcp;
 
        if(cmd == IPC_SET) {
@@ -1069,14 +1067,13 @@ static struct sem_undo *find_undo(struct ipc_namespace *ns, int semid)
        ipc_rcu_getref(sma);
        sem_unlock(sma);
 
-       new = (struct sem_undo *) kmalloc(sizeof(struct sem_undo) + sizeof(short)*nsems, GFP_KERNEL);
+       new = kzalloc(sizeof(struct sem_undo) + sizeof(short)*nsems, GFP_KERNEL);
        if (!new) {
                ipc_lock_by_ptr(&sma->sem_perm);
                ipc_rcu_putref(sma);
                sem_unlock(sma);
                return ERR_PTR(-ENOMEM);
        }
-       memset(new, 0, sizeof(struct sem_undo) + sizeof(short)*nsems);
        new->semadj = (short *) &new[1];
        new->semid = semid;