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authorLinus Torvalds <torvalds@linux-foundation.org>2017-09-09 10:30:07 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-09 10:30:07 -0700
commitfbf4432ff71b7a25bef993a5312906946d27f446 (patch)
treecf3e0024af4b8f9376eff75743f1fa1526e40900 /ipc/util.h
parentc054be10ffdbd5507a1fd738067d76acfb4808fd (diff)
parent0cfb6aee70bddbef6ec796b255f588ce0e126766 (diff)
downloadlinux-next-fbf4432ff71b7a25bef993a5312906946d27f446.tar.gz
linux-next-fbf4432ff71b7a25bef993a5312906946d27f446.zip
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton: - most of the rest of MM - a small number of misc things - lib/ updates - checkpatch - autofs updates - ipc/ updates * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (126 commits) ipc: optimize semget/shmget/msgget for lots of keys ipc/sem: play nicer with large nsops allocations ipc/sem: drop sem_checkid helper ipc: convert kern_ipc_perm.refcount from atomic_t to refcount_t ipc: convert sem_undo_list.refcnt from atomic_t to refcount_t ipc: convert ipc_namespace.count from atomic_t to refcount_t kcov: support compat processes sh: defconfig: cleanup from old Kconfig options mn10300: defconfig: cleanup from old Kconfig options m32r: defconfig: cleanup from old Kconfig options drivers/pps: use surrounding "if PPS" to remove numerous dependency checks drivers/pps: aesthetic tweaks to PPS-related content cpumask: make cpumask_next() out-of-line kmod: move #ifdef CONFIG_MODULES wrapper to Makefile kmod: split off umh headers into its own file MAINTAINERS: clarify kmod is just a kernel module loader kmod: split out umh code into its own file test_kmod: flip INT checks to be consistent test_kmod: remove paranoid UINT_MAX check on uint range processing vfat: deduplicate hex2bin() ...
Diffstat (limited to 'ipc/util.h')
-rw-r--r--ipc/util.h21
1 files changed, 12 insertions, 9 deletions
diff --git a/ipc/util.h b/ipc/util.h
index c692010e6f0a..80c9f51c3f07 100644
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -15,8 +15,8 @@
#define SEQ_MULTIPLIER (IPCMNI)
-void sem_init(void);
-void msg_init(void);
+int sem_init(void);
+int msg_init(void);
void shm_init(void);
struct ipc_namespace;
@@ -30,17 +30,17 @@ static inline void mq_put_mnt(struct ipc_namespace *ns) { }
#endif
#ifdef CONFIG_SYSVIPC
-void sem_init_ns(struct ipc_namespace *ns);
-void msg_init_ns(struct ipc_namespace *ns);
-void shm_init_ns(struct ipc_namespace *ns);
+int sem_init_ns(struct ipc_namespace *ns);
+int msg_init_ns(struct ipc_namespace *ns);
+int shm_init_ns(struct ipc_namespace *ns);
void sem_exit_ns(struct ipc_namespace *ns);
void msg_exit_ns(struct ipc_namespace *ns);
void shm_exit_ns(struct ipc_namespace *ns);
#else
-static inline void sem_init_ns(struct ipc_namespace *ns) { }
-static inline void msg_init_ns(struct ipc_namespace *ns) { }
-static inline void shm_init_ns(struct ipc_namespace *ns) { }
+static inline int sem_init_ns(struct ipc_namespace *ns) { return 0; }
+static inline int msg_init_ns(struct ipc_namespace *ns) { return 0; }
+static inline int shm_init_ns(struct ipc_namespace *ns) { return 0; }
static inline void sem_exit_ns(struct ipc_namespace *ns) { }
static inline void msg_exit_ns(struct ipc_namespace *ns) { }
@@ -79,7 +79,7 @@ struct ipc_ops {
struct seq_file;
struct ipc_ids;
-void ipc_init_ids(struct ipc_ids *);
+int ipc_init_ids(struct ipc_ids *);
#ifdef CONFIG_PROC_FS
void __init ipc_init_proc_interface(const char *path, const char *header,
int ids, int (*show)(struct seq_file *, void *));
@@ -104,6 +104,9 @@ int ipc_get_maxid(struct ipc_ids *);
/* must be called with both locks acquired. */
void ipc_rmid(struct ipc_ids *, struct kern_ipc_perm *);
+/* must be called with both locks acquired. */
+void ipc_set_key_private(struct ipc_ids *, struct kern_ipc_perm *);
+
/* must be called with ipcp locked */
int ipcperms(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, short flg);