13 files changed, 50 insertions, 75 deletions

diff --git a/kernel/acct.c b/kernel/acct.c
index fce53d8df8a7..cf19547cc9e4 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c
@@ -413,7 +413,7 @@ static u32 encode_float(u64 value)
  *  The acct_process() call is the workhorse of the process
  *  accounting system. The struct acct is built here and then written
  *  into the accounting file. This function should only be called from
- *  do_exit().
+ *  do_exit() or when switching to a different output file.
  */
 
 /*
diff --git a/kernel/exit.c b/kernel/exit.c
index cd0f1d4137a7..549c0558ba68 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -1357,7 +1357,7 @@ static int wait_task_stopped(struct task_struct *p, int delayed_group_leader,
                              int __user *stat_addr, struct rusage __user *ru)
 {
         int retval, exit_code;
-        struct pid_namespace *ns;
+        pid_t pid;
 
         if (!p->exit_code)
                 return 0;
@@ -1376,12 +1376,11 @@ static int wait_task_stopped(struct task_struct *p, int delayed_group_leader,
          * keep holding onto the tasklist_lock while we call getrusage and
          * possibly take page faults for user memory.
          */
-        ns = current->nsproxy->pid_ns;
+        pid = task_pid_nr_ns(p, current->nsproxy->pid_ns);
         get_task_struct(p);
         read_unlock(&tasklist_lock);
 
         if (unlikely(noreap)) {
-                pid_t pid = task_pid_nr_ns(p, ns);
                 uid_t uid = p->uid;
                 int why = (p->ptrace & PT_PTRACED) ? CLD_TRAPPED : CLD_STOPPED;
 
@@ -1389,7 +1388,7 @@ static int wait_task_stopped(struct task_struct *p, int delayed_group_leader,
                 if (unlikely(!exit_code) || unlikely(p->exit_state))
                         goto bail_ref;
                 return wait_noreap_copyout(p, pid, uid,
-                                           why, (exit_code << 8) | 0x7f,
+                                           why, exit_code,
                                            infop, ru);
         }
 
@@ -1451,11 +1450,11 @@ bail_ref:
         if (!retval && infop)
                 retval = put_user(exit_code, &infop->si_status);
         if (!retval && infop)
-                retval = put_user(task_pid_nr_ns(p, ns), &infop->si_pid);
+                retval = put_user(pid, &infop->si_pid);
         if (!retval && infop)
                 retval = put_user(p->uid, &infop->si_uid);
         if (!retval)
-                retval = task_pid_nr_ns(p, ns);
+                retval = pid;
         put_task_struct(p);
 
         BUG_ON(!retval);
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 474219a41929..2fc25810509e 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -32,9 +32,14 @@
 
 /* These will be re-linked against their real values during the second link stage */
 extern const unsigned long kallsyms_addresses[] __attribute__((weak));
-extern const unsigned long kallsyms_num_syms __attribute__((weak));
 extern const u8 kallsyms_names[] __attribute__((weak));
 
+/* tell the compiler that the count isn't in the small data section if the arch
+ * has one (eg: FRV)
+ */
+extern const unsigned long kallsyms_num_syms
+__attribute__((weak, section(".rodata")));
+
 extern const u8 kallsyms_token_table[] __attribute__((weak));
 extern const u16 kallsyms_token_index[] __attribute__((weak));
 
diff --git a/kernel/module.c b/kernel/module.c
index 3202c9950073..91fe6958b6e1 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -81,7 +81,8 @@ int unregister_module_notifier(struct notifier_block * nb)
 }
 EXPORT_SYMBOL(unregister_module_notifier);
 
-/* We require a truly strong try_module_get() */
+/* We require a truly strong try_module_get(): 0 means failure due to
+   ongoing or failed initialization etc. */
 static inline int strong_try_module_get(struct module *mod)
 {
         if (mod && mod->state == MODULE_STATE_COMING)
@@ -952,7 +953,8 @@ static unsigned long resolve_symbol(Elf_Shdr *sechdrs,
         ret = __find_symbol(name, &owner, &crc,
                         !(mod->taints & TAINT_PROPRIETARY_MODULE));
         if (ret) {
-                /* use_module can fail due to OOM, or module unloading */
+                /* use_module can fail due to OOM,
+                   or module initialization or unloading */
                 if (!check_version(sechdrs, versindex, name, mod, crc) ||
                     !use_module(mod, owner))
                         ret = 0;
@@ -1369,7 +1371,7 @@ dup:
         return ret;
 }
 
-/* Change all symbols so that sh_value encodes the pointer directly. */
+/* Change all symbols so that st_value encodes the pointer directly. */
 static int simplify_symbols(Elf_Shdr *sechdrs,
                             unsigned int symindex,
                             const char *strtab,
diff --git a/kernel/sched.c b/kernel/sched.c
index 38933cafea8a..98dcdf272db3 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -5466,7 +5466,7 @@ sd_alloc_ctl_domain_table(struct sched_domain *sd)
         return table;
 }
 
-static ctl_table * sd_alloc_ctl_cpu_table(int cpu)
+static ctl_table *sd_alloc_ctl_cpu_table(int cpu)
 {
         struct ctl_table *entry, *table;
         struct sched_domain *sd;
@@ -6708,9 +6708,6 @@ void __init sched_init_smp(void)
 
 int in_sched_functions(unsigned long addr)
 {
-        /* Linker adds these: start and end of __sched functions */
-        extern char __sched_text_start[], __sched_text_end[];
-
         return in_lock_functions(addr) ||
                 (addr >= (unsigned long)__sched_text_start
                 && addr < (unsigned long)__sched_text_end);
diff --git a/kernel/sched_debug.c b/kernel/sched_debug.c
index ca198a797bfa..d30467b47ddd 100644
--- a/kernel/sched_debug.c
+++ b/kernel/sched_debug.c
@@ -199,7 +199,7 @@ static int sched_debug_show(struct seq_file *m, void *v)
         u64 now = ktime_to_ns(ktime_get());
         int cpu;
 
-        SEQ_printf(m, "Sched Debug Version: v0.06-v22, %s %.*s\n",
+        SEQ_printf(m, "Sched Debug Version: v0.07, %s %.*s\n",
                 init_utsname()->release,
                 (int)strcspn(init_utsname()->version, " "),
                 init_utsname()->version);
@@ -327,10 +327,12 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
                         avg_atom = -1LL;
 
                 avg_per_cpu = p->se.sum_exec_runtime;
-                if (p->se.nr_migrations)
-                        avg_per_cpu = div64_64(avg_per_cpu, p->se.nr_migrations);
-                else
+                if (p->se.nr_migrations) {
+                        avg_per_cpu = div64_64(avg_per_cpu,
+                                               p->se.nr_migrations);
+                } else {
                         avg_per_cpu = -1LL;
+                }
 
                 __PN(avg_atom);
                 __PN(avg_per_cpu);
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index ee00da284b12..2f16e15c022c 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -22,7 +22,7 @@
 
 /*
  * Targeted preemption latency for CPU-bound tasks:
- * (default: 20ms * ilog(ncpus), units: nanoseconds)
+ * (default: 20ms * (1 + ilog(ncpus)), units: nanoseconds)
  *
  * NOTE: this latency value is not the same as the concept of
  * 'timeslice length' - timeslices in CFS are of variable length
@@ -36,14 +36,14 @@ unsigned int sysctl_sched_latency = 20000000ULL;
 
 /*
  * Minimal preemption granularity for CPU-bound tasks:
- * (default: 1 msec * ilog(ncpus), units: nanoseconds)
+ * (default: 4 msec * (1 + ilog(ncpus)), units: nanoseconds)
  */
-unsigned int sysctl_sched_min_granularity = 1000000ULL;
+unsigned int sysctl_sched_min_granularity = 4000000ULL;
 
 /*
  * is kept at sysctl_sched_latency / sysctl_sched_min_granularity
  */
-static unsigned int sched_nr_latency = 20;
+static unsigned int sched_nr_latency = 5;
 
 /*
  * After fork, child runs first. (default) If set to 0 then
@@ -61,7 +61,7 @@ unsigned int __read_mostly sysctl_sched_compat_yield;
 
 /*
  * SCHED_BATCH wake-up granularity.
- * (default: 10 msec * ilog(ncpus), units: nanoseconds)
+ * (default: 10 msec * (1 + ilog(ncpus)), units: nanoseconds)
  *
  * This option delays the preemption effects of decoupled workloads
  * and reduces their over-scheduling. Synchronous workloads will still
@@ -71,7 +71,7 @@ unsigned int sysctl_sched_batch_wakeup_granularity = 10000000UL;
 
 /*
  * SCHED_OTHER wake-up granularity.
- * (default: 10 msec * ilog(ncpus), units: nanoseconds)
+ * (default: 10 msec * (1 + ilog(ncpus)), units: nanoseconds)
  *
  * This option delays the preemption effects of decoupled workloads
  * and reduces their over-scheduling. Synchronous workloads will still
diff --git a/kernel/sched_stats.h b/kernel/sched_stats.h
index 630178e53bb6..5b32433e7ee5 100644
--- a/kernel/sched_stats.h
+++ b/kernel/sched_stats.h
@@ -52,7 +52,8 @@ static int show_schedstat(struct seq_file *seq, void *v)
                                     sd->lb_nobusyq[itype],
                                     sd->lb_nobusyg[itype]);
                         }
-                        seq_printf(seq, " %u %u %u %u %u %u %u %u %u %u %u %u\n",
+                        seq_printf(seq,
+                                   " %u %u %u %u %u %u %u %u %u %u %u %u\n",
                             sd->alb_count, sd->alb_failed, sd->alb_pushed,
                             sd->sbe_count, sd->sbe_balanced, sd->sbe_pushed,
                             sd->sbf_count, sd->sbf_balanced, sd->sbf_pushed,
diff --git a/kernel/sysctl_check.c b/kernel/sysctl_check.c
index 4abc6d2306f4..6972f26c65f7 100644
--- a/kernel/sysctl_check.c
+++ b/kernel/sysctl_check.c
@@ -140,9 +140,6 @@ static struct trans_ctl_table trans_vm_table[] = {
         { VM_PANIC_ON_OOM,              "panic_on_oom" },
         { VM_VDSO_ENABLED,              "vdso_enabled" },
         { VM_MIN_SLAB,                  "min_slab_ratio" },
-        { VM_CMM_PAGES,                 "cmm_pages" },
-        { VM_CMM_TIMED_PAGES,           "cmm_timed_pages" },
-        { VM_CMM_TIMEOUT,               "cmm_timeout" },
 
         {}
 };
@@ -237,36 +234,6 @@ static struct trans_ctl_table trans_net_ipv4_conf_table[] = {
         {}
 };
 
-
-static struct trans_ctl_table trans_net_ipv4_vs_table[] = {
-        { NET_IPV4_VS_AMEMTHRESH,       "amemthresh" },
-        { NET_IPV4_VS_DEBUG_LEVEL,      "debug_level" },
-        { NET_IPV4_VS_AMDROPRATE,       "am_droprate" },
-        { NET_IPV4_VS_DROP_ENTRY,       "drop_entry" },
-        { NET_IPV4_VS_DROP_PACKET,      "drop_packet" },
-        { NET_IPV4_VS_SECURE_TCP,       "secure_tcp" },
-        { NET_IPV4_VS_TO_ES,            "timeout_established" },
-        { NET_IPV4_VS_TO_SS,            "timeout_synsent" },
-        { NET_IPV4_VS_TO_SR,            "timeout_synrecv" },
-        { NET_IPV4_VS_TO_FW,            "timeout_finwait" },
-        { NET_IPV4_VS_TO_TW,            "timeout_timewait" },
-        { NET_IPV4_VS_TO_CL,            "timeout_close" },
-        { NET_IPV4_VS_TO_CW,            "timeout_closewait" },
-        { NET_IPV4_VS_TO_LA,            "timeout_lastack" },
-        { NET_IPV4_VS_TO_LI,            "timeout_listen" },
-        { NET_IPV4_VS_TO_SA,            "timeout_synack" },
-        { NET_IPV4_VS_TO_UDP,           "timeout_udp" },
-        { NET_IPV4_VS_TO_ICMP,          "timeout_icmp" },
-        { NET_IPV4_VS_CACHE_BYPASS,     "cache_bypass" },
-        { NET_IPV4_VS_EXPIRE_NODEST_CONN,       "expire_nodest_conn" },
-        { NET_IPV4_VS_EXPIRE_QUIESCENT_TEMPLATE,        "expire_quiescent_template" },
-        { NET_IPV4_VS_SYNC_THRESHOLD,           "sync_threshold" },
-        { NET_IPV4_VS_NAT_ICMP_SEND,    "nat_icmp_send" },
-        { NET_IPV4_VS_LBLC_EXPIRE,              "lblc_expiration" },
-        { NET_IPV4_VS_LBLCR_EXPIRE,             "lblcr_expiration" },
-        {}
-};
-
 static struct trans_ctl_table trans_net_neigh_vars_table[] = {
         { NET_NEIGH_MCAST_SOLICIT,      "mcast_solicit" },
         { NET_NEIGH_UCAST_SOLICIT,      "ucast_solicit" },
@@ -341,7 +308,6 @@ static struct trans_ctl_table trans_net_ipv4_table[] = {
         { NET_IPV4_ROUTE,               "route",        trans_net_ipv4_route_table },
         /* NET_IPV4_FIB_HASH unused */
         { NET_IPV4_NETFILTER,           "netfilter",    trans_net_ipv4_netfilter_table },
-        { NET_IPV4_VS,                  "vs",           trans_net_ipv4_vs_table },
 
         { NET_IPV4_TCP_TIMESTAMPS,              "tcp_timestamps" },
         { NET_IPV4_TCP_WINDOW_SCALING,          "tcp_window_scaling" },
@@ -1219,16 +1185,6 @@ static struct trans_ctl_table trans_arlan_table[] = {
         {}
 };
 
-static struct trans_ctl_table trans_appldata_table[] = {
-        { CTL_APPLDATA_TIMER,           "timer" },
-        { CTL_APPLDATA_INTERVAL,        "interval" },
-        { CTL_APPLDATA_OS,              "os" },
-        { CTL_APPLDATA_NET_SUM,         "net_sum" },
-        { CTL_APPLDATA_MEM,             "mem" },
-        {}
-
-};
-
 static struct trans_ctl_table trans_s390dbf_table[] = {
         { 5678 /* CTL_S390DBF_STOPPABLE */,     "debug_stoppable" },
         { 5679 /* CTL_S390DBF_ACTIVE */,        "debug_active" },
@@ -1273,7 +1229,6 @@ static struct trans_ctl_table trans_root_table[] = {
         { CTL_ABI,      "abi" },
         /* CTL_CPU not used */
         { CTL_ARLAN,    "arlan",        trans_arlan_table },
-        { CTL_APPLDATA, "appldata",     trans_appldata_table },
         { CTL_S390DBF,  "s390dbf",      trans_s390dbf_table },
         { CTL_SUNRPC,   "sunrpc",       trans_sunrpc_table },
         { CTL_PM,       "pm",           trans_pm_table },
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index 14a2ecf2b318..e64efaf957e8 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -249,10 +249,12 @@ int do_adjtimex(struct timex *txc)
 
         /* Now we validate the data before disabling interrupts */
 
-        if ((txc->modes & ADJ_OFFSET_SINGLESHOT) == ADJ_OFFSET_SINGLESHOT)
+        if ((txc->modes & ADJ_OFFSET_SINGLESHOT) == ADJ_OFFSET_SINGLESHOT) {
           /* singleshot must not be used with any other mode bits */
-                if (txc->modes != ADJ_OFFSET_SINGLESHOT)
+                if (txc->modes != ADJ_OFFSET_SINGLESHOT &&
+                                        txc->modes != ADJ_OFFSET_SS_READ)
                         return -EINVAL;
+        }
 
         if (txc->modes != ADJ_OFFSET_SINGLESHOT && (txc->modes & ADJ_OFFSET))
           /* adjustment Offset limited to +- .512 seconds */
@@ -372,7 +374,8 @@ int do_adjtimex(struct timex *txc)
 leave:  if ((time_status & (STA_UNSYNC|STA_CLOCKERR)) != 0)
                 result = TIME_ERROR;
 
-        if ((txc->modes & ADJ_OFFSET_SINGLESHOT) == ADJ_OFFSET_SINGLESHOT)
+        if ((txc->modes == ADJ_OFFSET_SINGLESHOT) ||
+                        (txc->modes == ADJ_OFFSET_SS_READ))
                 txc->offset = save_adjust;
         else
                 txc->offset = ((long)shift_right(time_offset, SHIFT_UPDATE)) *
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 27a2338deb4a..cb89fa8db110 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -133,6 +133,8 @@ void tick_nohz_update_jiffies(void)
         if (!ts->tick_stopped)
                 return;
 
+        touch_softlockup_watchdog();
+
         cpu_clear(cpu, nohz_cpu_mask);
         now = ktime_get();
 
diff --git a/kernel/user.c b/kernel/user.c
index 0f3aa0234107..8320a87f3e5a 100644
--- a/kernel/user.c
+++ b/kernel/user.c
@@ -337,8 +337,11 @@ struct user_struct * alloc_uid(struct user_namespace *ns, uid_t uid)
                 struct user_struct *new;
 
                 new = kmem_cache_alloc(uid_cachep, GFP_KERNEL);
-                if (!new)
+                if (!new) {
+                        uids_mutex_unlock();
                         return NULL;
+                }
+
                 new->uid = uid;
                 atomic_set(&new->__count, 1);
                 atomic_set(&new->processes, 0);
@@ -355,6 +358,7 @@ struct user_struct * alloc_uid(struct user_namespace *ns, uid_t uid)
 
                 if (alloc_uid_keyring(new, current) < 0) {
                         kmem_cache_free(uid_cachep, new);
+                        uids_mutex_unlock();
                         return NULL;
                 }
 
@@ -362,6 +366,7 @@ struct user_struct * alloc_uid(struct user_namespace *ns, uid_t uid)
                         key_put(new->uid_keyring);
                         key_put(new->session_keyring);
                         kmem_cache_free(uid_cachep, new);
+                        uids_mutex_unlock();
                         return NULL;
                 }
 
diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c
index c76c06466bfd..fe3a56c2256d 100644
--- a/kernel/utsname_sysctl.c
+++ b/kernel/utsname_sysctl.c
@@ -18,6 +18,10 @@
 static void *get_uts(ctl_table *table, int write)
 {
         char *which = table->data;
+        struct uts_namespace *uts_ns;
+
+        uts_ns = current->nsproxy->uts_ns;
+        which = (which - (char *)&init_uts_ns) + (char *)uts_ns;
 
         if (!write)
                 down_read(&uts_sem);