prctl: Add force disable speculation

[mirror_ubuntu-artful-kernel.git] / include / linux / sched.h

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 8337e2db0bb2e71473f94c283c5e51639ddd8dc8..b0b1d1a59de5dba44ad400e668fef44c1274ca3d 100644 (file)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -898,8 +898,9 @@ struct task_struct {
        /* cg_list protected by css_set_lock and tsk->alloc_lock: */
        struct list_head                cg_list;
 #endif
-#ifdef CONFIG_INTEL_RDT_A
-       int                             closid;
+#ifdef CONFIG_INTEL_RDT
+       u32                             closid;
+       u32                             rmid;
 #endif
 #ifdef CONFIG_FUTEX
        struct robust_list_head __user  *robust_list;
@@ -1163,13 +1164,6 @@ static inline pid_t task_tgid_nr(struct task_struct *tsk)
        return tsk->tgid;
 }
 
-extern pid_t task_tgid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns);
-
-static inline pid_t task_tgid_vnr(struct task_struct *tsk)
-{
-       return pid_vnr(task_tgid(tsk));
-}
-
 /**
  * pid_alive - check that a task structure is not stale
  * @p: Task structure to be checked.
@@ -1185,23 +1179,6 @@ static inline int pid_alive(const struct task_struct *p)
        return p->pids[PIDTYPE_PID].pid != NULL;
 }
 
-static inline pid_t task_ppid_nr_ns(const struct task_struct *tsk, struct pid_namespace *ns)
-{
-       pid_t pid = 0;
-
-       rcu_read_lock();
-       if (pid_alive(tsk))
-               pid = task_tgid_nr_ns(rcu_dereference(tsk->real_parent), ns);
-       rcu_read_unlock();
-
-       return pid;
-}
-
-static inline pid_t task_ppid_nr(const struct task_struct *tsk)
-{
-       return task_ppid_nr_ns(tsk, &init_pid_ns);
-}
-
 static inline pid_t task_pgrp_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
 {
        return __task_pid_nr_ns(tsk, PIDTYPE_PGID, ns);
@@ -1223,6 +1200,33 @@ static inline pid_t task_session_vnr(struct task_struct *tsk)
        return __task_pid_nr_ns(tsk, PIDTYPE_SID, NULL);
 }
 
+static inline pid_t task_tgid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
+{
+       return __task_pid_nr_ns(tsk, __PIDTYPE_TGID, ns);
+}
+
+static inline pid_t task_tgid_vnr(struct task_struct *tsk)
+{
+       return __task_pid_nr_ns(tsk, __PIDTYPE_TGID, NULL);
+}
+
+static inline pid_t task_ppid_nr_ns(const struct task_struct *tsk, struct pid_namespace *ns)
+{
+       pid_t pid = 0;
+
+       rcu_read_lock();
+       if (pid_alive(tsk))
+               pid = task_tgid_nr_ns(rcu_dereference(tsk->real_parent), ns);
+       rcu_read_unlock();
+
+       return pid;
+}
+
+static inline pid_t task_ppid_nr(const struct task_struct *tsk)
+{
+       return task_ppid_nr_ns(tsk, &init_pid_ns);
+}
+
 /* Obsolete, do not use: */
 static inline pid_t task_pgrp_nr(struct task_struct *tsk)
 {
@@ -1319,7 +1323,8 @@ static inline bool is_percpu_thread(void)
 #define PFA_NO_NEW_PRIVS               0       /* May not gain new privileges. */
 #define PFA_SPREAD_PAGE                        1       /* Spread page cache over cpuset */
 #define PFA_SPREAD_SLAB                        2       /* Spread some slab caches over cpuset */
-
+#define PFA_SPEC_SSB_DISABLE           3       /* Speculative Store Bypass disabled */
+#define PFA_SPEC_SSB_FORCE_DISABLE     4       /* Speculative Store Bypass force disabled*/
 
 #define TASK_PFA_TEST(name, func)                                      \
        static inline bool task_##func(struct task_struct *p)           \
@@ -1344,6 +1349,13 @@ TASK_PFA_TEST(SPREAD_SLAB, spread_slab)
 TASK_PFA_SET(SPREAD_SLAB, spread_slab)
 TASK_PFA_CLEAR(SPREAD_SLAB, spread_slab)
 
+TASK_PFA_TEST(SPEC_SSB_DISABLE, spec_ssb_disable)
+TASK_PFA_SET(SPEC_SSB_DISABLE, spec_ssb_disable)
+TASK_PFA_CLEAR(SPEC_SSB_DISABLE, spec_ssb_disable)
+
+TASK_PFA_TEST(SPEC_SSB_FORCE_DISABLE, spec_ssb_force_disable)
+TASK_PFA_SET(SPEC_SSB_FORCE_DISABLE, spec_ssb_force_disable)
+
 static inline void
 current_restore_flags(unsigned long orig_flags, unsigned long flags)
 {