aboutsummaryrefslogtreecommitdiffstats
path: root/ipc/util.h
diff options
context:
space:
mode:
authorPavel Emelyanov <xemul@openvz.org>2008-02-08 07:18:22 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-08 12:22:23 -0500
commitae5e1b22f17983da929a0d0178896269e19da186 (patch)
treee9937e2060167a430cf90955327d1a5a2e7b2303 /ipc/util.h
parent58bfdd6deeec02b73691ea2c951a3c5d743bca63 (diff)
namespaces: move the IPC namespace under IPC_NS option
Currently the IPC namespace management code is spread over the ipc/*.c files. I moved this code into ipc/namespace.c file which is compiled out when needed. The linux/ipc_namespace.h file is used to store the prototypes of the functions in namespace.c and the stubs for NAMESPACES=n case. This is done so, because the stub for copy_ipc_namespace requires the knowledge of the CLONE_NEWIPC flag, which is in sched.h. But the linux/ipc.h file itself in included into many many .c files via the sys.h->sem.h sequence so adding the sched.h into it will make all these .c depend on sched.h which is not that good. On the other hand the knowledge about the namespaces stuff is required in 4 .c files only. Besides, this patch compiles out some auxiliary functions from ipc/sem.c, msg.c and shm.c files. It turned out that moving these functions into namespaces.c is not that easy because they use many other calls and macros from the original file. Moving them would make this patch complicated. On the other hand all these functions can be consolidated, so I will send a separate patch doing this a bit later. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Serge Hallyn <serue@us.ibm.com> Cc: Cedric Le Goater <clg@fr.ibm.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Herbert Poetzl <herbert@13thfloor.at> Cc: Kirill Korotaev <dev@sw.ru> Cc: Sukadev Bhattiprolu <sukadev@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'ipc/util.h')
-rw-r--r--ipc/util.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/ipc/util.h b/ipc/util.h
index 9ffea40457ce..fc6b7294f764 100644
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -20,6 +20,8 @@ void sem_init (void);
20void msg_init (void); 20void msg_init (void);
21void shm_init (void); 21void shm_init (void);
22 22
23struct ipc_namespace;
24
23int sem_init_ns(struct ipc_namespace *ns); 25int sem_init_ns(struct ipc_namespace *ns);
24int msg_init_ns(struct ipc_namespace *ns); 26int msg_init_ns(struct ipc_namespace *ns);
25int shm_init_ns(struct ipc_namespace *ns); 27int shm_init_ns(struct ipc_namespace *ns);