1 files changed, 44 insertions, 11 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 115af05ecabd..cbf2a3b46280 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -100,7 +100,7 @@ struct robust_list_head;
 struct bio;
 struct fs_struct;
 struct bts_context;
-struct perf_counter_context;
+struct perf_event_context;
 
 /*
  * List of flags we want to share for kernel threads,
@@ -140,6 +140,10 @@ extern int nr_processes(void);
 extern unsigned long nr_running(void);
 extern unsigned long nr_uninterruptible(void);
 extern unsigned long nr_iowait(void);
+extern unsigned long nr_iowait_cpu(void);
+extern unsigned long this_cpu_load(void);
+
+
 extern void calc_global_load(void);
 extern u64 cpu_nr_migrations(int cpu);
 
@@ -422,6 +426,15 @@ static inline unsigned long get_mm_hiwater_rss(struct mm_struct *mm)
         return max(mm->hiwater_rss, get_mm_rss(mm));
 }
 
+static inline void setmax_mm_hiwater_rss(unsigned long *maxrss,
+                                         struct mm_struct *mm)
+{
+        unsigned long hiwater_rss = get_mm_hiwater_rss(mm);
+
+        if (*maxrss < hiwater_rss)
+                *maxrss = hiwater_rss;
+}
+
 static inline unsigned long get_mm_hiwater_vm(struct mm_struct *mm)
 {
         return max(mm->hiwater_vm, mm->total_vm);
@@ -434,7 +447,9 @@ extern int get_dumpable(struct mm_struct *mm);
 /* dumpable bits */
 #define MMF_DUMPABLE      0  /* core dump is permitted */
 #define MMF_DUMP_SECURELY 1  /* core file is readable only by root */
+
 #define MMF_DUMPABLE_BITS 2
+#define MMF_DUMPABLE_MASK ((1 << MMF_DUMPABLE_BITS) - 1)
 
 /* coredump filter bits */
 #define MMF_DUMP_ANON_PRIVATE   2
@@ -444,6 +459,7 @@ extern int get_dumpable(struct mm_struct *mm);
 #define MMF_DUMP_ELF_HEADERS    6
 #define MMF_DUMP_HUGETLB_PRIVATE 7
 #define MMF_DUMP_HUGETLB_SHARED  8
+
 #define MMF_DUMP_FILTER_SHIFT   MMF_DUMPABLE_BITS
 #define MMF_DUMP_FILTER_BITS    7
 #define MMF_DUMP_FILTER_MASK \
@@ -457,6 +473,10 @@ extern int get_dumpable(struct mm_struct *mm);
 #else
 # define MMF_DUMP_MASK_DEFAULT_ELF      0
 #endif
+                                        /* leave room for more dump flags */
+#define MMF_VM_MERGEABLE        16      /* KSM may merge identical pages */
+
+#define MMF_INIT_MASK           (MMF_DUMPABLE_MASK | MMF_DUMP_FILTER_MASK)
 
 struct sighand_struct {
         atomic_t                count;
@@ -473,6 +493,13 @@ struct pacct_struct {
         unsigned long           ac_minflt, ac_majflt;
 };
 
+struct cpu_itimer {
+        cputime_t expires;
+        cputime_t incr;
+        u32 error;
+        u32 incr_error;
+};
+
 /**
  * struct task_cputime - collected CPU time counts
  * @utime:              time spent in user mode, in &cputime_t units
@@ -567,9 +594,12 @@ struct signal_struct {
         struct pid *leader_pid;
         ktime_t it_real_incr;
 
-        /* ITIMER_PROF and ITIMER_VIRTUAL timers for the process */
-        cputime_t it_prof_expires, it_virt_expires;
-        cputime_t it_prof_incr, it_virt_incr;
+        /*
+         * ITIMER_PROF and ITIMER_VIRTUAL timers for the process, we use
+         * CPUCLOCK_PROF and CPUCLOCK_VIRT for indexing array as these
+         * values are defined to 0 and 1 respectively
+         */
+        struct cpu_itimer it[2];
 
         /*
          * Thread group totals for process CPU timers.
@@ -601,6 +631,7 @@ struct signal_struct {
         unsigned long nvcsw, nivcsw, cnvcsw, cnivcsw;
         unsigned long min_flt, maj_flt, cmin_flt, cmaj_flt;
         unsigned long inblock, oublock, cinblock, coublock;
+        unsigned long maxrss, cmaxrss;
         struct task_io_accounting ioac;
 
         /*
@@ -632,6 +663,8 @@ struct signal_struct {
         unsigned audit_tty;
         struct tty_audit_buf *tty_audit_buf;
 #endif
+
+        int oom_adj;    /* OOM kill score adjustment (bit shift) */
 };
 
 /* Context switch must be unlocked if interrupts are to be enabled */
@@ -701,7 +734,7 @@ struct user_struct {
 #endif
 #endif
 
-#ifdef CONFIG_PERF_COUNTERS
+#ifdef CONFIG_PERF_EVENTS
         atomic_long_t locked_vm;
 #endif
 };
@@ -1214,7 +1247,6 @@ struct task_struct {
          * a short time
          */
         unsigned char fpu_counter;
-        s8 oomkilladj; /* OOM kill score adjustment (bit shift). */
 #ifdef CONFIG_BLK_DEV_IO_TRACE
         unsigned int btrace_seq;
 #endif
@@ -1451,10 +1483,10 @@ struct task_struct {
         struct list_head pi_state_list;
         struct futex_pi_state *pi_state_cache;
 #endif
-#ifdef CONFIG_PERF_COUNTERS
-        struct perf_counter_context *perf_counter_ctxp;
-        struct mutex perf_counter_mutex;
-        struct list_head perf_counter_list;
+#ifdef CONFIG_PERF_EVENTS
+        struct perf_event_context *perf_event_ctxp;
+        struct mutex perf_event_mutex;
+        struct list_head perf_event_list;
 #endif
 #ifdef CONFIG_NUMA
         struct mempolicy *mempolicy;    /* Protected by alloc_lock */
@@ -1507,6 +1539,7 @@ struct task_struct {
         /* bitmask of trace recursion */
         unsigned long trace_recursion;
 #endif /* CONFIG_TRACING */
+        unsigned long stack_start;
 };
 
 /* Future-safe accessor for struct task_struct's cpus_allowed. */
@@ -1713,7 +1746,7 @@ extern cputime_t task_gtime(struct task_struct *p);
 #define PF_FROZEN       0x00010000      /* frozen for system suspend */
 #define PF_FSTRANS      0x00020000      /* inside a filesystem transaction */
 #define PF_KSWAPD       0x00040000      /* I am kswapd */
-#define PF_SWAPOFF      0x00080000      /* I am in swapoff */
+#define PF_OOM_ORIGIN   0x00080000      /* Allocating much memory to others */
 #define PF_LESS_THROTTLE 0x00100000     /* Throttle me less: I clean memory */
 #define PF_KTHREAD      0x00200000      /* I am a kernel thread */
 #define PF_RANDOMIZE    0x00400000      /* randomize virtual address space */