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-rw-r--r--ipc/sem.c26
1 files changed, 4 insertions, 22 deletions
diff --git a/ipc/sem.c b/ipc/sem.c
index 7836edb0cf96..1f7e28d1d25d 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -87,14 +87,12 @@
87#include <asm/uaccess.h> 87#include <asm/uaccess.h>
88#include "util.h" 88#include "util.h"
89 89
90#define sem_ids(ns) (*((ns)->ids[IPC_SEM_IDS])) 90#define sem_ids(ns) ((ns)->ids[IPC_SEM_IDS])
91 91
92#define sem_unlock(sma) ipc_unlock(&(sma)->sem_perm) 92#define sem_unlock(sma) ipc_unlock(&(sma)->sem_perm)
93#define sem_checkid(sma, semid) ipc_checkid(&sma->sem_perm, semid) 93#define sem_checkid(sma, semid) ipc_checkid(&sma->sem_perm, semid)
94#define sem_buildid(id, seq) ipc_buildid(id, seq) 94#define sem_buildid(id, seq) ipc_buildid(id, seq)
95 95
96static struct ipc_ids init_sem_ids;
97
98static int newary(struct ipc_namespace *, struct ipc_params *); 96static int newary(struct ipc_namespace *, struct ipc_params *);
99static void freeary(struct ipc_namespace *, struct sem_array *); 97static void freeary(struct ipc_namespace *, struct sem_array *);
100#ifdef CONFIG_PROC_FS 98#ifdef CONFIG_PROC_FS
@@ -118,30 +116,17 @@ static int sysvipc_sem_proc_show(struct seq_file *s, void *it);
118#define sc_semopm sem_ctls[2] 116#define sc_semopm sem_ctls[2]
119#define sc_semmni sem_ctls[3] 117#define sc_semmni sem_ctls[3]
120 118
121static void __sem_init_ns(struct ipc_namespace *ns, struct ipc_ids *ids) 119void sem_init_ns(struct ipc_namespace *ns)
122{ 120{
123 ns->ids[IPC_SEM_IDS] = ids;
124 ns->sc_semmsl = SEMMSL; 121 ns->sc_semmsl = SEMMSL;
125 ns->sc_semmns = SEMMNS; 122 ns->sc_semmns = SEMMNS;
126 ns->sc_semopm = SEMOPM; 123 ns->sc_semopm = SEMOPM;
127 ns->sc_semmni = SEMMNI; 124 ns->sc_semmni = SEMMNI;
128 ns->used_sems = 0; 125 ns->used_sems = 0;
129 ipc_init_ids(ids); 126 ipc_init_ids(&ns->ids[IPC_SEM_IDS]);
130} 127}
131 128
132#ifdef CONFIG_IPC_NS 129#ifdef CONFIG_IPC_NS
133int sem_init_ns(struct ipc_namespace *ns)
134{
135 struct ipc_ids *ids;
136
137 ids = kmalloc(sizeof(struct ipc_ids), GFP_KERNEL);
138 if (ids == NULL)
139 return -ENOMEM;
140
141 __sem_init_ns(ns, ids);
142 return 0;
143}
144
145void sem_exit_ns(struct ipc_namespace *ns) 130void sem_exit_ns(struct ipc_namespace *ns)
146{ 131{
147 struct sem_array *sma; 132 struct sem_array *sma;
@@ -163,15 +148,12 @@ void sem_exit_ns(struct ipc_namespace *ns)
163 total++; 148 total++;
164 } 149 }
165 up_write(&sem_ids(ns).rw_mutex); 150 up_write(&sem_ids(ns).rw_mutex);
166
167 kfree(ns->ids[IPC_SEM_IDS]);
168 ns->ids[IPC_SEM_IDS] = NULL;
169} 151}
170#endif 152#endif
171 153
172void __init sem_init (void) 154void __init sem_init (void)
173{ 155{
174 __sem_init_ns(&init_ipc_ns, &init_sem_ids); 156 sem_init_ns(&init_ipc_ns);
175 ipc_init_proc_interface("sysvipc/sem", 157 ipc_init_proc_interface("sysvipc/sem",
176 " key semid perms nsems uid gid cuid cgid otime ctime\n", 158 " key semid perms nsems uid gid cuid cgid otime ctime\n",
177 IPC_SEM_IDS, sysvipc_sem_proc_show); 159 IPC_SEM_IDS, sysvipc_sem_proc_show);