[PATCH v2 1/4] ipc: Move MQUEUE_MAGIC to a shared header

[Oxana Kharitonova <webprosto@gmail.com>]

Move MQUEUE_MAGIC from ipc/mqueue.c to include/linux/ipc_namespace.h so
it can be shared by code outside of ipc/mqueue.c without duplicating
the constant.

Signed-off-by: Oxana Kharitonova <webprosto@gmail.com>
---
 include/linux/ipc_namespace.h | 2 ++
 ipc/mqueue.c                  | 1 -
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
index 12faca29bbb9..8a15ffe38e9a 100644
--- a/include/linux/ipc_namespace.h
+++ b/include/linux/ipc_namespace.h
@@ -15,6 +15,8 @@
 
 struct user_namespace;
 
+#define MQUEUE_MAGIC 0x19800202
+
 struct ipc_ids {
 	int in_use;
 	unsigned short seq;
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index d1dd36a651b0..0f00e4efcb60 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -47,7 +47,6 @@ struct mqueue_fs_context {
 	bool			 newns;	/* Set if newly created ipc namespace */
 };
 
-#define MQUEUE_MAGIC	0x19800202
 #define DIRENT_SIZE	20
 #define FILENT_SIZE	80
 
-- 
2.43.0