Merge branch 'percpu-for-linus' into percpu-for-next

Conflicts:
	arch/sparc/kernel/smp_64.c
	arch/x86/kernel/cpu/perf_counter.c
	arch/x86/kernel/setup_percpu.c
	drivers/cpufreq/cpufreq_ondemand.c
	mm/percpu.c

Conflicts in core and arch percpu codes are mostly from commit
ed78e1e078dd44249f88b1dd8c76dafb39567161 which substituted many
num_possible_cpus() with nr_cpu_ids.  As for-next branch has moved all
the first chunk allocators into mm/percpu.c, the changes are moved
from arch code to mm/percpu.c.

Signed-off-by: Tejun Heo <tj@kernel.org>

6 files changed, 18 insertions, 10 deletions

diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c
index 086a2aeb0404..39a3cd0a4173 100644
--- a/arch/ia64/kernel/dma-mapping.c
+++ b/arch/ia64/kernel/dma-mapping.c
@@ -6,6 +6,14 @@ int iommu_detected __read_mostly;
 struct dma_map_ops *dma_ops;
 EXPORT_SYMBOL(dma_ops);
 
+#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
+
+static int __init dma_init(void)
+{
+       dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
+}
+fs_initcall(dma_init);
+
 struct dma_map_ops *dma_get_ops(struct device *dev)
 {
         return dma_ops;
diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c
index 2d311864e359..8ebccb589e1c 100644
--- a/arch/ia64/kernel/ia64_ksyms.c
+++ b/arch/ia64/kernel/ia64_ksyms.c
@@ -21,6 +21,7 @@ EXPORT_SYMBOL(csum_ipv6_magic);
 
 #include <asm/page.h>
 EXPORT_SYMBOL(clear_page);
+EXPORT_SYMBOL(copy_page);
 
 #ifdef CONFIG_VIRTUAL_MEM_MAP
 #include <linux/bootmem.h>
@@ -60,9 +61,6 @@ EXPORT_SYMBOL(__udivdi3);
 EXPORT_SYMBOL(__moddi3);
 EXPORT_SYMBOL(__umoddi3);
 
-#include <asm/page.h>
-EXPORT_SYMBOL(copy_page);
-
 #if defined(CONFIG_MD_RAID456) || defined(CONFIG_MD_RAID456_MODULE)
 extern void xor_ia64_2(void);
 extern void xor_ia64_3(void);
diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index c48b03f2b61d..dab4d393908c 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -1072,6 +1072,10 @@ iosapic_init (unsigned long phys_addr, unsigned int gsi_base)
         }
 
         addr = ioremap(phys_addr, 0);
+        if (addr == NULL) {
+                spin_unlock_irqrestore(&iosapic_lock, flags);
+                return -ENOMEM;
+        }
         ver = iosapic_version(addr);
         if ((err = iosapic_check_gsi_range(gsi_base, ver))) {
                 iounmap(addr);
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index 05695962fe44..f6b1ff0aea76 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -69,11 +69,6 @@ iommu_dma_init(void)
 
 int iommu_dma_supported(struct device *dev, u64 mask)
 {
-        struct dma_map_ops *ops = platform_dma_get_ops(dev);
-
-        if (ops->dma_supported)
-                return ops->dma_supported(dev, mask);
-
         /* Copied from i386. Doesn't make much sense, because it will
            only work for pci_alloc_coherent.
            The caller just has to use GFP_DMA in this case. */
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index 92c9689b7d97..9daa87fdb018 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -15,7 +15,6 @@
 #include <linux/mm.h>
 #include <linux/errno.h>
 #include <linux/ptrace.h>
-#include <linux/smp_lock.h>
 #include <linux/user.h>
 #include <linux/security.h>
 #include <linux/audit.h>
diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index bc80dff1df7a..8f060352e129 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -372,6 +372,10 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
         retval = kobject_init_and_add(&all_cpu_cache_info[cpu].kobj,
                                       &cache_ktype_percpu_entry, &sys_dev->kobj,
                                       "%s", "cache");
+        if (unlikely(retval < 0)) {
+                cpu_cache_sysfs_exit(cpu);
+                return retval;
+        }
 
         for (i = 0; i < all_cpu_cache_info[cpu].num_cache_leaves; i++) {
                 this_object = LEAF_KOBJECT_PTR(cpu,i);
@@ -385,7 +389,7 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
                         }
                         kobject_put(&all_cpu_cache_info[cpu].kobj);
                         cpu_cache_sysfs_exit(cpu);
-                        break;
+                        return retval;
                 }
                 kobject_uevent(&(this_object->kobj), KOBJ_ADD);
         }