[PATCH] sched: consolidate sbe sbf

[linux-2.6] / include / linux / sched.h

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4dbb109022f3646ff39b7f64464bebb0200071fc..edb2c69a88730e919433953bb0a4f2f8e00f4282 100644 (file)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -201,8 +201,8 @@ extern unsigned long
 arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr,
                          unsigned long len, unsigned long pgoff,
                          unsigned long flags);
-extern void arch_unmap_area(struct vm_area_struct *area);
-extern void arch_unmap_area_topdown(struct vm_area_struct *area);
+extern void arch_unmap_area(struct mm_struct *, unsigned long);
+extern void arch_unmap_area_topdown(struct mm_struct *, unsigned long);
 
 #define set_mm_counter(mm, member, value) (mm)->_##member = (value)
 #define get_mm_counter(mm, member) ((mm)->_##member)
@@ -218,9 +218,10 @@ struct mm_struct {
        unsigned long (*get_unmapped_area) (struct file *filp,
                                unsigned long addr, unsigned long len,
                                unsigned long pgoff, unsigned long flags);
-       void (*unmap_area) (struct vm_area_struct *area);
-       unsigned long mmap_base;                /* base of mmap area */
-       unsigned long free_area_cache;          /* first hole */
+       void (*unmap_area) (struct mm_struct *mm, unsigned long addr);
+        unsigned long mmap_base;               /* base of mmap area */
+        unsigned long cached_hole_size;         /* if non-zero, the largest hole below free_area_cache */
+       unsigned long free_area_cache;          /* first hole of size cached_hole_size or larger */
        pgd_t * pgd;
        atomic_t mm_users;                      /* How many users with user space? */
        atomic_t mm_count;                      /* How many references to "struct mm_struct" (users count as 1) */
@@ -245,7 +246,7 @@ struct mm_struct {
 
        unsigned long saved_auxv[42]; /* for /proc/PID/auxv */
 
-       unsigned dumpable:1;
+       unsigned dumpable:2;
        cpumask_t cpu_vm_mask;
 
        /* Architecture-specific MM context */
@@ -367,6 +368,11 @@ struct signal_struct {
 #endif
 };
 
+/* Context switch must be unlocked if interrupts are to be enabled */
+#ifdef __ARCH_WANT_INTERRUPTS_ON_CTXSW
+# define __ARCH_WANT_UNLOCKED_CTXSW
+#endif
+
 /*
  * Bits in flags field of signal_struct.
  */
@@ -459,10 +465,11 @@ enum idle_type
 #define SD_LOAD_BALANCE                1       /* Do load balancing on this domain. */
 #define SD_BALANCE_NEWIDLE     2       /* Balance when about to become idle */
 #define SD_BALANCE_EXEC                4       /* Balance on exec */
-#define SD_WAKE_IDLE           8       /* Wake to idle CPU on task wakeup */
-#define SD_WAKE_AFFINE         16      /* Wake task to waking CPU */
-#define SD_WAKE_BALANCE                32      /* Perform balancing at task wakeup */
-#define SD_SHARE_CPUPOWER      64      /* Domain members share cpu power */
+#define SD_BALANCE_FORK                8       /* Balance on fork, clone */
+#define SD_WAKE_IDLE           16      /* Wake to idle CPU on task wakeup */
+#define SD_WAKE_AFFINE         32      /* Wake task to waking CPU */
+#define SD_WAKE_BALANCE                64      /* Perform balancing at task wakeup */
+#define SD_SHARE_CPUPOWER      128     /* Domain members share cpu power */
 
 struct sched_group {
        struct sched_group *next;       /* Must be a circular list */
@@ -487,6 +494,11 @@ struct sched_domain {
        unsigned long long cache_hot_time; /* Task considered cache hot (ns) */
        unsigned int cache_nice_tries;  /* Leave cache hot tasks for # tries */
        unsigned int per_cpu_gain;      /* CPU % gained by adding domain cpus */
+       unsigned int busy_idx;
+       unsigned int idle_idx;
+       unsigned int newidle_idx;
+       unsigned int wake_idx;
+       unsigned int forkexec_idx;
        int flags;                      /* See SD_* */
 
        /* Runtime fields. */
@@ -510,10 +522,16 @@ struct sched_domain {
        unsigned long alb_failed;
        unsigned long alb_pushed;
 
-       /* sched_balance_exec() stats */
-       unsigned long sbe_attempts;
+       /* SD_BALANCE_EXEC stats */
+       unsigned long sbe_cnt;
+       unsigned long sbe_balanced;
        unsigned long sbe_pushed;
 
+       /* SD_BALANCE_FORK stats */
+       unsigned long sbf_cnt;
+       unsigned long sbf_balanced;
+       unsigned long sbf_pushed;
+
        /* try_to_wake_up() stats */
        unsigned long ttwu_wake_remote;
        unsigned long ttwu_move_affine;
@@ -560,9 +578,10 @@ struct group_info {
                groups_free(group_info); \
 } while (0)
 
-struct group_info *groups_alloc(int gidsetsize);
-void groups_free(struct group_info *group_info);
-int set_current_groups(struct group_info *group_info);
+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])
@@ -580,6 +599,9 @@ struct task_struct {
 
        int lock_depth;         /* BKL lock depth */
 
+#if defined(CONFIG_SMP) && defined(__ARCH_WANT_UNLOCKED_CTXSW)
+       int oncpu;
+#endif
        int prio, static_prio;
        struct list_head run_list;
        prio_array_t *array;
@@ -659,6 +681,7 @@ struct task_struct {
        struct user_struct *user;
 #ifdef CONFIG_KEYS
        struct key *thread_keyring;     /* keyring private to this thread */
+       unsigned char jit_keyring;      /* default keyring to attach requested keys to */
 #endif
        int oomkilladj; /* OOM kill score adjustment (bit shift). */
        char comm[TASK_COMM_LEN]; /* executable name excluding path
@@ -701,8 +724,6 @@ struct task_struct {
        spinlock_t alloc_lock;
 /* Protection of proc_dentry: nesting proc_lock, dcache_lock, write_lock_irq(&tasklist_lock); */
        spinlock_t proc_lock;
-/* context-switch lock */
-       spinlock_t switch_lock;
 
 /* journalling filesystem info */
        void *journal_info;
@@ -909,7 +930,7 @@ extern void FASTCALL(wake_up_new_task(struct task_struct * tsk,
 #else
  static inline void kick_process(struct task_struct *tsk) { }
 #endif
-extern void FASTCALL(sched_fork(task_t * p));
+extern void FASTCALL(sched_fork(task_t * p, int clone_flags));
 extern void FASTCALL(sched_exit(task_t * p));
 
 extern int in_group_p(gid_t);