Merge branches 'bugzilla-14207' and 'idle' into release

diff --git a/arch/mips/bcm47xx/prom.c b/arch/mips/bcm47xx/prom.c
index c51405e5792117d868b99dc2fe21c30c8f06061d..29d3cbf9555feae7f96e4faf6b076f797d5b14c4 100644 (file)
--- a/arch/mips/bcm47xx/prom.c
+++ b/arch/mips/bcm47xx/prom.c
@@ -141,6 +141,14 @@ static __init void prom_init_mem(void)
                        break;
        }
 
+       /* Ignoring the last page when ddr size is 128M. Cached
+        * accesses to last page is causing the processor to prefetch
+        * using address above 128M stepping out of the ddr address
+        * space.
+        */
+       if (mem == 0x8000000)
+               mem -= 0x1000;
+
        add_memory_region(0, mem, BOOT_MEM_RAM);
 }
 

diff --git a/arch/mips/mm/highmem.c b/arch/mips/mm/highmem.c
index e274fda329f4e5bc9ef0a90484972b650390e2b0..127d732474bf0ceb63dd38c75db8d0cfde1312c0 100644 (file)
--- a/arch/mips/mm/highmem.c
+++ b/arch/mips/mm/highmem.c
@@ -1,5 +1,6 @@
 #include <linux/module.h>
 #include <linux/highmem.h>
+#include <linux/sched.h>
 #include <linux/smp.h>
 #include <asm/fixmap.h>
 #include <asm/tlbflush.h>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 524d9352f17e56a4120008d601d219590fad6a23..f388dc68f60544cf941dfd66267b2a6f7167db1f 100644 (file)
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -18,7 +18,6 @@ config PARISC
        select BUG
        select HAVE_PERF_EVENTS
        select GENERIC_ATOMIC64 if !64BIT
-       select HAVE_ARCH_TRACEHOOK
        help
          The PA-RISC microprocessor is designed by Hewlett-Packard and used
          in many of their workstations & servers (HP9000 700 and 800 series,

diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index fc801bab1b3b7683f39d6e38e3a6fc17003e7da1..b753ea59703a114f056b32d9b1455622d7b131a9 100644 (file)
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -450,6 +450,8 @@ struct thread_struct {
        struct perf_event       *ptrace_bps[HBP_NUM];
        /* Debug status used for traps, single steps, etc... */
        unsigned long           debugreg6;
+       /* Keep track of the exact dr7 value set by the user */
+       unsigned long           ptrace_dr7;
        /* Fault info: */
        unsigned long           cr2;
        unsigned long           trap_no;

diff --git a/arch/x86/kernel/hw_breakpoint.c b/arch/x86/kernel/hw_breakpoint.c
index 05d5fec64a9475855e224012dbb54a9d82b1ee4c..bb6006e3e295c1d554c0c442a04413a8ad92acd3 100644 (file)
--- a/arch/x86/kernel/hw_breakpoint.c
+++ b/arch/x86/kernel/hw_breakpoint.c
@@ -212,25 +212,6 @@ static int arch_check_va_in_kernelspace(unsigned long va, u8 hbp_len)
        return (va >= TASK_SIZE) && ((va + len - 1) >= TASK_SIZE);
 }
 
-/*
- * Store a breakpoint's encoded address, length, and type.
- */
-static int arch_store_info(struct perf_event *bp)
-{
-       struct arch_hw_breakpoint *info = counter_arch_bp(bp);
-       /*
-        * For kernel-addresses, either the address or symbol name can be
-        * specified.
-        */
-       if (info->name)
-               info->address = (unsigned long)
-                               kallsyms_lookup_name(info->name);
-       if (info->address)
-               return 0;
-
-       return -EINVAL;
-}
-
 int arch_bp_generic_fields(int x86_len, int x86_type,
                           int *gen_len, int *gen_type)
 {
@@ -362,10 +343,13 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp,
                return ret;
        }
 
-       ret = arch_store_info(bp);
-
-       if (ret < 0)
-               return ret;
+       /*
+        * For kernel-addresses, either the address or symbol name can be
+        * specified.
+        */
+       if (info->name)
+               info->address = (unsigned long)
+                               kallsyms_lookup_name(info->name);
        /*
         * Check that the low-order bits of the address are appropriate
         * for the alignment implied by len.

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 017d937639fef87694eea7cd3cbbf95efb163d37..0c1033d61e59c07bd5a99b0a2c6f9c246352f61e 100644 (file)
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -702,7 +702,7 @@ static unsigned long ptrace_get_debugreg(struct task_struct *tsk, int n)
        } else if (n == 6) {
                val = thread->debugreg6;
         } else if (n == 7) {
-               val = ptrace_get_dr7(thread->ptrace_bps);
+               val = thread->ptrace_dr7;
        }
        return val;
 }
@@ -778,8 +778,11 @@ int ptrace_set_debugreg(struct task_struct *tsk, int n, unsigned long val)
                        return rc;
        }
        /* All that's left is DR7 */
-       if (n == 7)
+       if (n == 7) {
                rc = ptrace_write_dr7(tsk, val);
+               if (!rc)
+                       thread->ptrace_dr7 = val;
+       }
 
 ret_path:
        return rc;

diff --git a/drivers/clocksource/cs5535-clockevt.c b/drivers/clocksource/cs5535-clockevt.c
index 27d20fac19d153a9fca968fb169dbed9c1490e3f..b314a999aabea67ad637b6ebfde64beef6cb3aaa 100644 (file)
--- a/drivers/clocksource/cs5535-clockevt.c
+++ b/drivers/clocksource/cs5535-clockevt.c
@@ -21,7 +21,7 @@
 
 #define DRV_NAME "cs5535-clockevt"
 
-static int timer_irq = CONFIG_CS5535_MFGPT_DEFAULT_IRQ;
+static int timer_irq;
 module_param_named(irq, timer_irq, int, 0644);
 MODULE_PARM_DESC(irq, "Which IRQ to use for the clock source MFGPT ticks.");
 

diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 07d14dfdf0b42f01caab15df68123f023219517c..226b3e93498c45d8f63fc2f67544950a512b20cd 100644 (file)
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -934,7 +934,7 @@ static int __devinit acer_backlight_init(struct device *dev)
        acer_backlight_device = bd;
 
        bd->props.power = FB_BLANK_UNBLANK;
-       bd->props.brightness = max_brightness;
+       bd->props.brightness = read_brightness(bd);
        bd->props.max_brightness = max_brightness;
        backlight_update_status(bd);
        return 0;

diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c
index eb12182b20598861937b46496b8716efcae1e366..d25df51bb0d2b3160efe478fb4e64f968014ea04 100644 (file)
--- a/drivers/video/efifb.c
+++ b/drivers/video/efifb.c
@@ -161,8 +161,17 @@ static int efifb_setcolreg(unsigned regno, unsigned red, unsigned green,
        return 0;
 }
 
+static void efifb_destroy(struct fb_info *info)
+{
+       if (info->screen_base)
+               iounmap(info->screen_base);
+       release_mem_region(info->aperture_base, info->aperture_size);
+       framebuffer_release(info);
+}
+
 static struct fb_ops efifb_ops = {
        .owner          = THIS_MODULE,
+       .fb_destroy     = efifb_destroy,
        .fb_setcolreg   = efifb_setcolreg,
        .fb_fillrect    = cfb_fillrect,
        .fb_copyarea    = cfb_copyarea,
@@ -281,7 +290,7 @@ static int __init efifb_probe(struct platform_device *dev)
        info->par = NULL;
 
        info->aperture_base = efifb_fix.smem_start;
-       info->aperture_size = size_total;
+       info->aperture_size = size_remap;
 
        info->screen_base = ioremap(efifb_fix.smem_start, efifb_fix.smem_len);
        if (!info->screen_base) {

diff --git a/fs/exec.c b/fs/exec.c
index e95c692ef0e4acb3434e6d9386a56954907226c8..cce6bbdbdbb11705afbe6c729007ede3b8714e92 100644 (file)
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -637,7 +637,6 @@ int setup_arg_pages(struct linux_binprm *bprm,
         * will align it up.
         */
        rlim_stack = rlimit(RLIMIT_STACK) & PAGE_MASK;
-       rlim_stack = min(rlim_stack, stack_size);
 #ifdef CONFIG_STACK_GROWSUP
        if (stack_size + stack_expand > rlim_stack)
                stack_base = vma->vm_start + rlim_stack;

diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 2b19297742cb5761141e509732c0efdab63a4f9a..2ae7409bf38f80cc7cbd5dbd472f614c3d694d37 100644 (file)
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -3259,8 +3259,6 @@ static void perf_event_task_output(struct perf_event *event,
        task_event->event_id.tid = perf_event_tid(event, task);
        task_event->event_id.ptid = perf_event_tid(event, current);
 
-       task_event->event_id.time = perf_clock();
-
        perf_output_put(&handle, task_event->event_id);
 
        perf_output_end(&handle);
@@ -3268,7 +3266,7 @@ static void perf_event_task_output(struct perf_event *event,
 
 static int perf_event_task_match(struct perf_event *event)
 {
-       if (event->state != PERF_EVENT_STATE_ACTIVE)
+       if (event->state < PERF_EVENT_STATE_INACTIVE)
                return 0;
 
        if (event->cpu != -1 && event->cpu != smp_processor_id())
@@ -3300,7 +3298,7 @@ static void perf_event_task_event(struct perf_task_event *task_event)
        cpuctx = &get_cpu_var(perf_cpu_context);
        perf_event_task_ctx(&cpuctx->ctx, task_event);
        if (!ctx)
-               ctx = rcu_dereference(task_event->task->perf_event_ctxp);
+               ctx = rcu_dereference(current->perf_event_ctxp);
        if (ctx)
                perf_event_task_ctx(ctx, task_event);
        put_cpu_var(perf_cpu_context);
@@ -3331,6 +3329,7 @@ static void perf_event_task(struct task_struct *task,
                        /* .ppid */
                        /* .tid  */
                        /* .ptid */
+                       .time = perf_clock(),
                },
        };
 
@@ -3380,7 +3379,7 @@ static void perf_event_comm_output(struct perf_event *event,
 
 static int perf_event_comm_match(struct perf_event *event)
 {
-       if (event->state != PERF_EVENT_STATE_ACTIVE)
+       if (event->state < PERF_EVENT_STATE_INACTIVE)
                return 0;
 
        if (event->cpu != -1 && event->cpu != smp_processor_id())
@@ -3500,7 +3499,7 @@ static void perf_event_mmap_output(struct perf_event *event,
 static int perf_event_mmap_match(struct perf_event *event,
                                   struct perf_mmap_event *mmap_event)
 {
-       if (event->state != PERF_EVENT_STATE_ACTIVE)
+       if (event->state < PERF_EVENT_STATE_INACTIVE)
                return 0;
 
        if (event->cpu != -1 && event->cpu != smp_processor_id())

diff --git a/kernel/sys.c b/kernel/sys.c
index 26a6b73a6b85bbc2a4ee1e1392d3aa86d1e9a850..18bde979f346c46a8af621b62171912a1db98f5a 100644 (file)
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -222,6 +222,7 @@ SYSCALL_DEFINE2(getpriority, int, which, int, who)
        if (which > PRIO_USER || which < PRIO_PROCESS)
                return -EINVAL;
 
+       rcu_read_lock();
        read_lock(&tasklist_lock);
        switch (which) {
                case PRIO_PROCESS:
@@ -267,6 +268,7 @@ SYSCALL_DEFINE2(getpriority, int, which, int, who)
        }
 out_unlock:
        read_unlock(&tasklist_lock);
+       rcu_read_unlock();
 
        return retval;
 }

diff --git a/lib/idr.c b/lib/idr.c
index 1cac726c44bc17cc6fa1a7b5ab6358279a0c9a5d..0dc782216d4b94dc423c2d62d1ac70a2b6d30ddc 100644 (file)
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -156,10 +156,12 @@ static int sub_alloc(struct idr *idp, int *starting_id, struct idr_layer **pa)
                        id = (id | ((1 << (IDR_BITS * l)) - 1)) + 1;
 
                        /* if already at the top layer, we need to grow */
-                       if (!(p = pa[l])) {
+                       if (id >= 1 << (idp->layers * IDR_BITS)) {
                                *starting_id = id;
                                return IDR_NEED_TO_GROW;
                        }
+                       p = pa[l];
+                       BUG_ON(!p);
 
                        /* If we need to go up one layer, continue the
                         * loop; otherwise, restart from the top.

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index f52481b1c1e5442c9a5b16b06b22221b75b9bb7c..237050478f28f46fc59c5c9984337f1c3d60de08 100644 (file)
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -459,6 +459,8 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
        list_for_each_entry(c, &p->children, sibling) {
                if (c->mm == p->mm)
                        continue;
+               if (mem && !task_in_mem_cgroup(c, mem))
+                       continue;
                if (!oom_kill_task(c))
                        return 0;
        }

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 29465d440043587462c61cb7dc3483bc68203b07..fde17b090a47d30873238ea16efe71722e851d8f 100644 (file)
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -272,6 +272,7 @@ int synthesize_perf_probe_point(struct probe_point *pp)
        int ret;
 
        pp->probes[0] = buf = zalloc(MAX_CMDLEN);
+       pp->found = 1;
        if (!buf)
                die("Failed to allocate memory by zalloc.");
        if (pp->offset) {
@@ -294,6 +295,7 @@ int synthesize_perf_probe_point(struct probe_point *pp)
 error:
                free(pp->probes[0]);
                pp->probes[0] = NULL;
+               pp->found = 0;
        }
        return ret;
 }
@@ -455,6 +457,7 @@ void show_perf_probe_events(void)
        struct strlist *rawlist;
        struct str_node *ent;
 
+       memset(&pp, 0, sizeof(pp));
        fd = open_kprobe_events(O_RDONLY, 0);
        rawlist = get_trace_kprobe_event_rawlist(fd);
        close(fd);