shm: Move struct shmid_kernel into ipc/shm.c
All of the users are now in ipc/shm.c so make the definition local to
that file to make code maintenance easier. AKA to prevent rebuilding
the entire kernel when struct shmid_kernel changes.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
diff --git a/ipc/shm.c b/ipc/shm.c
index 387a786..0565669 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -48,6 +48,28 @@
#include "util.h"
+struct shmid_kernel /* private to the kernel */
+{
+ struct kern_ipc_perm shm_perm;
+ struct file *shm_file;
+ unsigned long shm_nattch;
+ unsigned long shm_segsz;
+ time64_t shm_atim;
+ time64_t shm_dtim;
+ time64_t shm_ctim;
+ pid_t shm_cprid;
+ pid_t shm_lprid;
+ struct user_struct *mlock_user;
+
+ /* The task created the shm object. NULL if the task is dead. */
+ struct task_struct *shm_creator;
+ struct list_head shm_clist; /* list by creator */
+} __randomize_layout;
+
+/* shm_mode upper byte flags */
+#define SHM_DEST 01000 /* segment will be destroyed on last detach */
+#define SHM_LOCKED 02000 /* segment will not be swapped */
+
struct shm_file_data {
int id;
struct ipc_namespace *ns;