Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux...

[pandora-kernel.git] / include / linux / sched.h

diff --git a/include/linux/sched.h b/include/linux/sched.h
index e5f928a..158d53d 100644 (file)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -571,12 +571,6 @@ struct signal_struct {
         */
        struct rlimit rlim[RLIM_NLIMITS];
 
-       /* keep the process-shared keyrings here so that they do the right
-        * thing in threads created with CLONE_THREAD */
-#ifdef CONFIG_KEYS
-       struct key *session_keyring;    /* keyring inherited over fork */
-       struct key *process_keyring;    /* keyring private to this process */
-#endif
 #ifdef CONFIG_BSD_PROCESS_ACCT
        struct pacct_struct pacct;      /* per-process accounting information */
 #endif
@@ -647,6 +641,7 @@ struct user_struct {
        /* Hash table maintenance information */
        struct hlist_node uidhash_node;
        uid_t uid;
+       struct user_namespace *user_ns;
 
 #ifdef CONFIG_USER_SCHED
        struct task_group *tg;
@@ -664,6 +659,7 @@ extern struct user_struct *find_user(uid_t);
 extern struct user_struct root_user;
 #define INIT_USER (&root_user)
 
+
 struct backing_dev_info;
 struct reclaim_state;
 
@@ -671,8 +667,7 @@ struct reclaim_state;
 struct sched_info {
        /* cumulative counters */
        unsigned long pcount;         /* # of times run on this cpu */
-       unsigned long long cpu_time,  /* time spent on the cpu */
-                          run_delay; /* time spent waiting on a runqueue */
+       unsigned long long run_delay; /* time spent waiting on a runqueue */
 
        /* timestamps */
        unsigned long long last_arrival,/* when we last ran on a cpu */
@@ -941,38 +936,7 @@ partition_sched_domains(int ndoms_new, struct cpumask *doms_new,
 #endif /* !CONFIG_SMP */
 
 struct io_context;                     /* See blkdev.h */
-#define NGROUPS_SMALL          32
-#define NGROUPS_PER_BLOCK      ((unsigned int)(PAGE_SIZE / sizeof(gid_t)))
-struct group_info {
-       int ngroups;
-       atomic_t usage;
-       gid_t small_block[NGROUPS_SMALL];
-       int nblocks;
-       gid_t *blocks[0];
-};
 
-/*
- * get_group_info() must be called with the owning task locked (via task_lock())
- * when task != current.  The reason being that the vast majority of callers are
- * looking at current->group_info, which can not be changed except by the
- * current task.  Changing current->group_info requires the task lock, too.
- */
-#define get_group_info(group_info) do { \
-       atomic_inc(&(group_info)->usage); \
-} while (0)
-
-#define put_group_info(group_info) do { \
-       if (atomic_dec_and_test(&(group_info)->usage)) \
-               groups_free(group_info); \
-} while (0)
-
-extern struct group_info *groups_alloc(int gidsetsize);
-extern void groups_free(struct group_info *group_info);
-extern int set_current_groups(struct group_info *group_info);
-extern int groups_search(struct group_info *group_info, gid_t grp);
-/* access the groups "array" with this macro */
-#define GROUP_AT(gi, i) \
-    ((gi)->blocks[(i)/NGROUPS_PER_BLOCK][(i)%NGROUPS_PER_BLOCK])
 
 #ifdef ARCH_HAS_PREFETCH_SWITCH_STACK
 extern void prefetch_stack(struct task_struct *t);
@@ -1228,6 +1192,7 @@ struct task_struct {
         * The buffer to hold the BTS data.
         */
        void *bts_buffer;
+       size_t bts_size;
 #endif /* CONFIG_X86_PTRACE_BTS */
 
        /* PID/PID hash table linkage. */
@@ -1251,17 +1216,12 @@ struct task_struct {
        struct list_head cpu_timers[3];
 
 /* process credentials */
-       uid_t uid,euid,suid,fsuid;
-       gid_t gid,egid,sgid,fsgid;
-       struct group_info *group_info;
-       kernel_cap_t   cap_effective, cap_inheritable, cap_permitted, cap_bset;
-       struct user_struct *user;
-       unsigned securebits;
-#ifdef CONFIG_KEYS
-       unsigned char jit_keyring;      /* default keyring to attach requested keys to */
-       struct key *request_key_auth;   /* assumed request_key authority */
-       struct key *thread_keyring;     /* keyring private to this thread */
-#endif
+       const struct cred *real_cred;   /* objective and real subjective task
+                                        * credentials (COW) */
+       const struct cred *cred;        /* effective (overridable) subjective task
+                                        * credentials (COW) */
+       struct mutex cred_exec_mutex;   /* execve vs ptrace cred calculation mutex */
+
        char comm[TASK_COMM_LEN]; /* executable name excluding path
                                     - access with [gs]et_task_comm (which lock
                                       it with task_lock())
@@ -1298,9 +1258,6 @@ struct task_struct {
        int (*notifier)(void *priv);
        void *notifier_data;
        sigset_t *notifier_mask;
-#ifdef CONFIG_SECURITY
-       void *security;
-#endif
        struct audit_context *audit_context;
 #ifdef CONFIG_AUDITSYSCALL
        uid_t loginuid;
@@ -1857,7 +1814,6 @@ static inline struct user_struct *get_uid(struct user_struct *u)
        return u;
 }
 extern void free_uid(struct user_struct *);
-extern void switch_uid(struct user_struct *);
 extern void release_uids(struct user_namespace *ns);
 
 #include <asm/current.h>
@@ -1876,9 +1832,6 @@ extern void wake_up_new_task(struct task_struct *tsk,
 extern void sched_fork(struct task_struct *p, int clone_flags);
 extern void sched_dead(struct task_struct *p);
 
-extern int in_group_p(gid_t);
-extern int in_egroup_p(gid_t);
-
 extern void proc_caches_init(void);
 extern void flush_signals(struct task_struct *);
 extern void ignore_signals(struct task_struct *);
@@ -2010,6 +1963,8 @@ static inline unsigned long wait_task_inactive(struct task_struct *p,
 #define for_each_process(p) \
        for (p = &init_task ; (p = next_task(p)) != &init_task ; )
 
+extern bool is_single_threaded(struct task_struct *);
+
 /*
  * Careful: do_each_thread/while_each_thread is a double loop so
  *          'break' will not work as expected - use goto instead.