Merge remote-tracking branch 'upstream' into next

 - bring back critical fixes (esp. aa67f6096c19bc)
 - provide an updated base for development

* upstream: (4334 commits)
  missed mnt_drop_write() in do_dentry_open()
  UBIFS: nuke pdflush from comments
  gfs2: nuke pdflush from comments
  drbd: nuke pdflush from comments
  nilfs2: nuke write_super from comments
  hfs: nuke write_super from comments
  vfs: nuke pdflush from comments
  jbd/jbd2: nuke write_super from comments
  btrfs: nuke pdflush from comments
  btrfs: nuke write_super from comments
  ext4: nuke pdflush from comments
  ext4: nuke write_super from comments
  ext3: nuke write_super from comments
  Documentation: fix the VM knobs descritpion WRT pdflush
  Documentation: get rid of write_super
  vfs: kill write_super and sync_supers
  ACPI processor: Fix tick_broadcast_mask online/offline regression
  ACPI: Only count valid srat memory structures
  ACPI: Untangle a return statement for better readability
  Linux 3.6-rc1
  ...

Signed-off-by: Avi Kivity <avi@redhat.com>

29 files changed, 273 insertions, 292 deletions

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 9a5d3cdc3e12..352f416269ce 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -115,11 +115,13 @@ config PPC
 	select HAVE_OPROFILE
 	select HAVE_SYSCALL_WRAPPERS if PPC64
 	select GENERIC_ATOMIC64 if PPC32
+	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select HAVE_IRQ_WORK
 	select HAVE_PERF_EVENTS
 	select HAVE_REGS_AND_STACK_ACCESS_API
 	select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
 	select HAVE_GENERIC_HARDIRQS
+	select ARCH_WANT_IPC_PARSE_VERSION
 	select SPARSE_IRQ
 	select IRQ_PER_CPU
 	select IRQ_DOMAIN
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 950d1f7a5a39..159e94f4b22a 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -149,7 +149,6 @@ core-$(CONFIG_KVM) 		+= arch/powerpc/kvm/
 core-$(CONFIG_PERF_EVENTS)	+= arch/powerpc/perf/
 
 drivers-$(CONFIG_OPROFILE)	+= arch/powerpc/oprofile/
-drivers-$(CONFIG_CRYPTO_DEV_NX) += drivers/crypto/nx/
 
 # Default to zImage, override when needed
 all: zImage
diff --git a/arch/powerpc/boot/dts/p2020rdb-pc_32b.dts b/arch/powerpc/boot/dts/p2020rdb-pc_32b.dts
index 852e5b27485d..57573bd52caa 100644
--- a/arch/powerpc/boot/dts/p2020rdb-pc_32b.dts
+++ b/arch/powerpc/boot/dts/p2020rdb-pc_32b.dts
@@ -56,7 +56,7 @@
 		ranges = <0x0 0x0 0xffe00000 0x100000>;
 	};
 
-	pci0: pcie@ffe08000 {
+	pci2: pcie@ffe08000 {
 		reg = <0 0xffe08000 0 0x1000>;
 		status = "disabled";
 	};
@@ -76,7 +76,7 @@
 		};
 	};
 
-	pci2: pcie@ffe0a000 {
+	pci0: pcie@ffe0a000 {
 		reg = <0 0xffe0a000 0 0x1000>;
 		ranges = <0x2000000 0x0 0xe0000000 0 0x80000000 0x0 0x20000000
 			  0x1000000 0x0 0x00000000 0 0xffc00000 0x0 0x10000>;
diff --git a/arch/powerpc/boot/dts/p2020rdb-pc_36b.dts b/arch/powerpc/boot/dts/p2020rdb-pc_36b.dts
index b5a56ca51cf7..470247ea68b4 100644
--- a/arch/powerpc/boot/dts/p2020rdb-pc_36b.dts
+++ b/arch/powerpc/boot/dts/p2020rdb-pc_36b.dts
@@ -56,7 +56,7 @@
 		ranges = <0x0 0xf 0xffe00000 0x100000>;
 	};
 
-	pci0: pcie@fffe08000 {
+	pci2: pcie@fffe08000 {
 		reg = <0xf 0xffe08000 0 0x1000>;
 		status = "disabled";
 	};
@@ -76,7 +76,7 @@
 		};
 	};
 
-	pci2: pcie@fffe0a000 {
+	pci0: pcie@fffe0a000 {
 		reg = <0xf 0xffe0a000 0 0x1000>;
 		ranges = <0x2000000 0x0 0xe0000000 0xc 0x00000000 0x0 0x20000000
 			  0x1000000 0x0 0x00000000 0xf 0xffc00000 0x0 0x10000>;
diff --git a/arch/powerpc/boot/dts/p3041ds.dts b/arch/powerpc/boot/dts/p3041ds.dts
index 22a215e94162..6cdcadc80c30 100644
--- a/arch/powerpc/boot/dts/p3041ds.dts
+++ b/arch/powerpc/boot/dts/p3041ds.dts
@@ -58,7 +58,7 @@
 				#size-cells = <1>;
 				compatible = "spansion,s25sl12801";
 				reg = <0>;
-				spi-max-frequency = <40000000>; /* input clock */
+				spi-max-frequency = <35000000>; /* input clock */
 				partition@u-boot {
 					label = "u-boot";
 					reg = <0x00000000 0x00100000>;
diff --git a/arch/powerpc/configs/chroma_defconfig b/arch/powerpc/configs/chroma_defconfig
index b1f9597fe312..29bb11ec6c64 100644
--- a/arch/powerpc/configs/chroma_defconfig
+++ b/arch/powerpc/configs/chroma_defconfig
@@ -21,8 +21,8 @@ CONFIG_CGROUP_DEVICE=y
 CONFIG_CPUSETS=y
 CONFIG_CGROUP_CPUACCT=y
 CONFIG_RESOURCE_COUNTERS=y
-CONFIG_CGROUP_MEM_RES_CTLR=y
-CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y
+CONFIG_CGROUP_MEMCG=y
+CONFIG_CGROUP_MEMCG_SWAP=y
 CONFIG_NAMESPACES=y
 CONFIG_RELAY=y
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/g5_defconfig b/arch/powerpc/configs/g5_defconfig
index 07b7f2af2dca..15130066e5e2 100644
--- a/arch/powerpc/configs/g5_defconfig
+++ b/arch/powerpc/configs/g5_defconfig
@@ -1,10 +1,8 @@
-CONFIG_PPC64=y
-CONFIG_ALTIVEC=y
-CONFIG_SMP=y
-CONFIG_NR_CPUS=4
 CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_BLK_DEV_INITRD=y
@@ -15,16 +13,15 @@ CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODVERSIONS=y
 CONFIG_MODULE_SRCVERSION_ALL=y
-# CONFIG_PPC_PSERIES is not set
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_MAC_PARTITION=y
+CONFIG_SMP=y
+CONFIG_NR_CPUS=4
+CONFIG_KEXEC=y
+# CONFIG_RELOCATABLE is not set
 CONFIG_CPU_FREQ=y
 CONFIG_CPU_FREQ_GOV_POWERSAVE=y
 CONFIG_CPU_FREQ_GOV_USERSPACE=y
-CONFIG_CPU_FREQ_PMAC64=y
-CONFIG_NO_HZ=y
-CONFIG_HIGH_RES_TIMERS=y
-CONFIG_KEXEC=y
-CONFIG_IRQ_ALL_CPUS=y
-# CONFIG_MIGRATION is not set
 CONFIG_PCI_MSI=y
 CONFIG_NET=y
 CONFIG_PACKET=y
@@ -52,7 +49,6 @@ CONFIG_NF_CT_NETLINK=m
 CONFIG_NF_CONNTRACK_IPV4=m
 CONFIG_IP_NF_QUEUE=m
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-CONFIG_PROC_DEVICETREE=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_NBD=m
 CONFIG_BLK_DEV_RAM=y
@@ -60,8 +56,6 @@ CONFIG_BLK_DEV_RAM_SIZE=65536
 CONFIG_CDROM_PKTCDVD=m
 CONFIG_IDE=y
 CONFIG_BLK_DEV_IDECD=y
-CONFIG_BLK_DEV_IDE_PMAC=y
-CONFIG_BLK_DEV_IDE_PMAC_ATA100FIRST=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_CHR_DEV_ST=y
 CONFIG_BLK_DEV_SR=y
@@ -85,33 +79,24 @@ CONFIG_DM_CRYPT=m
 CONFIG_DM_SNAPSHOT=m
 CONFIG_DM_MIRROR=m
 CONFIG_DM_ZERO=m
-CONFIG_IEEE1394=y
-CONFIG_IEEE1394_OHCI1394=y
-CONFIG_IEEE1394_SBP2=m
-CONFIG_IEEE1394_ETH1394=m
-CONFIG_IEEE1394_RAWIO=y
-CONFIG_IEEE1394_VIDEO1394=m
-CONFIG_IEEE1394_DV1394=m
-CONFIG_ADB_PMU=y
-CONFIG_PMAC_SMU=y
+CONFIG_MACINTOSH_DRIVERS=y
 CONFIG_MAC_EMUMOUSEBTN=y
-CONFIG_THERM_PM72=y
-CONFIG_WINDFARM=y
-CONFIG_WINDFARM_PM81=y
-CONFIG_WINDFARM_PM91=y
-CONFIG_WINDFARM_PM112=y
-CONFIG_WINDFARM_PM121=y
 CONFIG_NETDEVICES=y
-CONFIG_DUMMY=m
 CONFIG_BONDING=m
-CONFIG_TUN=m
-CONFIG_NET_ETHERNET=y
+CONFIG_DUMMY=m
 CONFIG_MII=y
-CONFIG_SUNGEM=y
+CONFIG_TUN=m
 CONFIG_ACENIC=m
 CONFIG_ACENIC_OMIT_TIGON_I=y
-CONFIG_E1000=y
 CONFIG_TIGON3=y
+CONFIG_E1000=y
+CONFIG_SUNGEM=y
+CONFIG_PPP=m
+CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPPOE=m
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
 CONFIG_USB_CATC=m
 CONFIG_USB_KAWETH=m
 CONFIG_USB_PEGASUS=m
@@ -121,36 +106,24 @@ CONFIG_USB_USBNET=m
 # CONFIG_USB_NET_NET1080 is not set
 # CONFIG_USB_NET_CDC_SUBSET is not set
 # CONFIG_USB_NET_ZAURUS is not set
-CONFIG_PPP=m
-CONFIG_PPP_ASYNC=m
-CONFIG_PPP_SYNC_TTY=m
-CONFIG_PPP_DEFLATE=m
-CONFIG_PPP_BSDCOMP=m
-CONFIG_PPPOE=m
 # CONFIG_INPUT_MOUSEDEV_PSAUX is not set
 CONFIG_INPUT_JOYDEV=m
 CONFIG_INPUT_EVDEV=y
-# CONFIG_KEYBOARD_ATKBD is not set
 # CONFIG_MOUSE_PS2 is not set
-# CONFIG_SERIO_I8042 is not set
 # CONFIG_SERIO_SERPORT is not set
+CONFIG_VT_HW_CONSOLE_BINDING=y
 # CONFIG_HW_RANDOM is not set
 CONFIG_GEN_RTC=y
 CONFIG_RAW_DRIVER=y
 CONFIG_I2C_CHARDEV=y
 # CONFIG_HWMON is not set
-CONFIG_AGP=m
-CONFIG_AGP_UNINORTH=m
+CONFIG_AGP=y
+CONFIG_DRM=y
+CONFIG_DRM_NOUVEAU=y
 CONFIG_VIDEO_OUTPUT_CONTROL=m
-CONFIG_FB=y
 CONFIG_FIRMWARE_EDID=y
 CONFIG_FB_TILEBLITTING=y
-CONFIG_FB_OF=y
-CONFIG_FB_NVIDIA=y
-CONFIG_FB_NVIDIA_I2C=y
 CONFIG_FB_RADEON=y
-# CONFIG_VGA_CONSOLE is not set
-CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
 CONFIG_SOUND=m
 CONFIG_SND=m
@@ -158,15 +131,7 @@ CONFIG_SND_SEQUENCER=m
 CONFIG_SND_MIXER_OSS=m
 CONFIG_SND_PCM_OSS=m
 CONFIG_SND_SEQUENCER_OSS=y
-CONFIG_SND_POWERMAC=m
-CONFIG_SND_AOA=m
-CONFIG_SND_AOA_FABRIC_LAYOUT=m
-CONFIG_SND_AOA_ONYX=m
-CONFIG_SND_AOA_TAS=m
-CONFIG_SND_AOA_TOONIE=m
 CONFIG_SND_USB_AUDIO=m
-CONFIG_HID_PID=y
-CONFIG_USB_HIDDEV=y
 CONFIG_HID_GYRATION=y
 CONFIG_LOGITECH_FF=y
 CONFIG_HID_PANTHERLORD=y
@@ -174,13 +139,12 @@ CONFIG_HID_PETALYNX=y
 CONFIG_HID_SAMSUNG=y
 CONFIG_HID_SONY=y
 CONFIG_HID_SUNPLUS=y
+CONFIG_HID_PID=y
+CONFIG_USB_HIDDEV=y
 CONFIG_USB=y
-CONFIG_USB_DEVICEFS=y
 CONFIG_USB_MON=y
 CONFIG_USB_EHCI_HCD=y
-# CONFIG_USB_EHCI_HCD_PPC_OF is not set
 CONFIG_USB_OHCI_HCD=y
-CONFIG_USB_OHCI_HCD_PPC_OF_BE=y
 CONFIG_USB_ACM=m
 CONFIG_USB_PRINTER=y
 CONFIG_USB_STORAGE=y
@@ -244,8 +208,6 @@ CONFIG_REISERFS_FS_POSIX_ACL=y
 CONFIG_REISERFS_FS_SECURITY=y
 CONFIG_XFS_FS=m
 CONFIG_XFS_POSIX_ACL=y
-CONFIG_INOTIFY=y
-CONFIG_AUTOFS_FS=m
 CONFIG_ISO9660_FS=y
 CONFIG_JOLIET=y
 CONFIG_ZISOFS=y
@@ -259,14 +221,12 @@ CONFIG_HFS_FS=m
 CONFIG_HFSPLUS_FS=m
 CONFIG_CRAMFS=y
 CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
 CONFIG_NFS_V3_ACL=y
 CONFIG_NFS_V4=y
 CONFIG_NFSD=y
 CONFIG_NFSD_V3_ACL=y
 CONFIG_NFSD_V4=y
 CONFIG_CIFS=m
-CONFIG_PARTITION_ADVANCED=y
 CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_CODEPAGE_1250=y
 CONFIG_NLS_CODEPAGE_1251=y
@@ -274,29 +234,23 @@ CONFIG_NLS_ASCII=y
 CONFIG_NLS_ISO8859_1=y
 CONFIG_NLS_ISO8859_15=y
 CONFIG_NLS_UTF8=y
-CONFIG_CRC_T10DIF=y
-CONFIG_LIBCRC32C=m
 CONFIG_MAGIC_SYSRQ=y
+# CONFIG_UNUSED_SYMBOLS is not set
 CONFIG_DEBUG_FS=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_MUTEXES=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_LATENCYTOP=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
-CONFIG_BOOTX_TEXT=y
+CONFIG_STRICT_DEVMEM=y
 CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_ECB=m
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_HMAC=y
-CONFIG_CRYPTO_MD4=m
 CONFIG_CRYPTO_MICHAEL_MIC=m
 CONFIG_CRYPTO_SHA256=m
 CONFIG_CRYPTO_SHA512=m
 CONFIG_CRYPTO_WP512=m
 CONFIG_CRYPTO_AES=m
 CONFIG_CRYPTO_ANUBIS=m
-CONFIG_CRYPTO_ARC4=m
 CONFIG_CRYPTO_BLOWFISH=m
 CONFIG_CRYPTO_CAST5=m
 CONFIG_CRYPTO_CAST6=m
@@ -306,3 +260,6 @@ CONFIG_CRYPTO_TEA=m
 CONFIG_CRYPTO_TWOFISH=m
 # CONFIG_CRYPTO_ANSI_CPRNG is not set
 # CONFIG_CRYPTO_HW is not set
+# CONFIG_VIRTUALIZATION is not set
+CONFIG_CRC_T10DIF=y
+CONFIG_LIBCRC32C=m
diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index f2fe0c2b41e4..db27c82e0542 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -279,7 +279,8 @@ CONFIG_HVC_RTAS=y
 CONFIG_HVC_BEAT=y
 CONFIG_HVCS=m
 CONFIG_IBM_BSR=m
-# CONFIG_HW_RANDOM is not set
+CONFIG_HW_RANDOM=m
+CONFIG_HW_RANDOM_PSERIES=m
 CONFIG_RAW_DRIVER=y
 CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_AMD8111=y
@@ -485,7 +486,8 @@ CONFIG_CRYPTO_TEA=m
 CONFIG_CRYPTO_TWOFISH=m
 CONFIG_CRYPTO_LZO=m
 # CONFIG_CRYPTO_ANSI_CPRNG is not set
-# CONFIG_CRYPTO_HW is not set
+CONFIG_CRYPTO_HW=y
+CONFIG_CRYPTO_DEV_NX=m
 CONFIG_VIRTUALIZATION=y
 CONFIG_KVM_BOOK3S_64=m
 CONFIG_KVM_BOOK3S_64_HV=y
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index 187fb8d53605..1f65b3c9b59a 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -226,7 +226,8 @@ CONFIG_HVC_CONSOLE=y
 CONFIG_HVC_RTAS=y
 CONFIG_HVCS=m
 CONFIG_IBM_BSR=m
-# CONFIG_HW_RANDOM is not set
+CONFIG_HW_RANDOM=m
+CONFIG_HW_RANDOM_PSERIES=m
 CONFIG_GEN_RTC=y
 CONFIG_RAW_DRIVER=y
 CONFIG_MAX_RAW_DEVS=1024
@@ -367,7 +368,8 @@ CONFIG_CRYPTO_TEA=m
 CONFIG_CRYPTO_TWOFISH=m
 CONFIG_CRYPTO_LZO=m
 # CONFIG_CRYPTO_ANSI_CPRNG is not set
-# CONFIG_CRYPTO_HW is not set
+CONFIG_CRYPTO_HW=y
+CONFIG_CRYPTO_DEV_NX=m
 CONFIG_VIRTUALIZATION=y
 CONFIG_KVM_BOOK3S_64=m
 CONFIG_KVM_BOOK3S_64_HV=y
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 62678e365ca0..78160874809a 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -27,7 +27,10 @@ extern void *dma_direct_alloc_coherent(struct device *dev, size_t size,
 extern void dma_direct_free_coherent(struct device *dev, size_t size,
 				     void *vaddr, dma_addr_t dma_handle,
 				     struct dma_attrs *attrs);
-
+extern int dma_direct_mmap_coherent(struct device *dev,
+				    struct vm_area_struct *vma,
+				    void *cpu_addr, dma_addr_t handle,
+				    size_t size, struct dma_attrs *attrs);
 
 #ifdef CONFIG_NOT_COHERENT_CACHE
 /*
@@ -207,11 +210,8 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
 #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
 #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
 
-extern int dma_mmap_coherent(struct device *, struct vm_area_struct *,
-			     void *, dma_addr_t, size_t);
 #define ARCH_HAS_DMA_MMAP_COHERENT
 
-
 static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 		enum dma_data_direction direction)
 {
diff --git a/arch/powerpc/include/asm/kmap_types.h b/arch/powerpc/include/asm/kmap_types.h
index bca8fdcd2542..5acabbd7ac6f 100644
--- a/arch/powerpc/include/asm/kmap_types.h
+++ b/arch/powerpc/include/asm/kmap_types.h
@@ -10,36 +10,7 @@
  * 2 of the License, or (at your option) any later version.
  */
 
-enum km_type {
-	KM_BOUNCE_READ,
-	KM_SKB_SUNRPC_DATA,
-	KM_SKB_DATA_SOFTIRQ,
-	KM_USER0,
-	KM_USER1,
-	KM_BIO_SRC_IRQ,
-	KM_BIO_DST_IRQ,
-	KM_PTE0,
-	KM_PTE1,
-	KM_IRQ0,
-	KM_IRQ1,
-	KM_SOFTIRQ0,
-	KM_SOFTIRQ1,
-	KM_PPC_SYNC_PAGE,
-	KM_PPC_SYNC_ICACHE,
-	KM_KDB,
-	KM_TYPE_NR
-};
-
-/*
- * This is a temporary build fix that (so they say on lkml....) should no longer
- * be required after 2.6.33, because of changes planned to the kmap code.
- * Let's try to remove this cruft then.
- */
-#ifdef CONFIG_DEBUG_HIGHMEM
-#define KM_NMI		(-1)
-#define KM_NMI_PTE	(-1)
-#define KM_IRQ_PTE	(-1)
-#endif
+#define KM_TYPE_NR 16
 
 #endif	/* __KERNEL__ */
 #endif	/* _ASM_POWERPC_KMAP_TYPES_H */
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index d3d1b5efd7eb..bd377a368611 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -389,7 +389,6 @@
 #include <linux/compiler.h>
 #include <linux/linkage.h>
 
-#define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_ALARM
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c
index bcfdcd22c766..2d7bb8ced136 100644
--- a/arch/powerpc/kernel/dma-iommu.c
+++ b/arch/powerpc/kernel/dma-iommu.c
@@ -109,6 +109,7 @@ static u64 dma_iommu_get_required_mask(struct device *dev)
 struct dma_map_ops dma_iommu_ops = {
 	.alloc			= dma_iommu_alloc_coherent,
 	.free			= dma_iommu_free_coherent,
+	.mmap			= dma_direct_mmap_coherent,
 	.map_sg			= dma_iommu_map_sg,
 	.unmap_sg		= dma_iommu_unmap_sg,
 	.dma_supported		= dma_iommu_dma_supported,
diff --git a/arch/powerpc/kernel/dma-swiotlb.c b/arch/powerpc/kernel/dma-swiotlb.c
index 4ab88dafb235..46943651da23 100644
--- a/arch/powerpc/kernel/dma-swiotlb.c
+++ b/arch/powerpc/kernel/dma-swiotlb.c
@@ -49,6 +49,7 @@ static u64 swiotlb_powerpc_get_required(struct device *dev)
 struct dma_map_ops swiotlb_dma_ops = {
 	.alloc = dma_direct_alloc_coherent,
 	.free = dma_direct_free_coherent,
+	.mmap = dma_direct_mmap_coherent,
 	.map_sg = swiotlb_map_sg_attrs,
 	.unmap_sg = swiotlb_unmap_sg_attrs,
 	.dma_supported = swiotlb_dma_supported,
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 289be751cd75..355b9d84b0f8 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -67,6 +67,24 @@ void dma_direct_free_coherent(struct device *dev, size_t size,
 #endif
 }
 
+int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
+			     void *cpu_addr, dma_addr_t handle, size_t size,
+			     struct dma_attrs *attrs)
+{
+	unsigned long pfn;
+
+#ifdef CONFIG_NOT_COHERENT_CACHE
+	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+	pfn = __dma_get_coherent_pfn((unsigned long)cpu_addr);
+#else
+	pfn = page_to_pfn(virt_to_page(cpu_addr));
+#endif
+	return remap_pfn_range(vma, vma->vm_start,
+			       pfn + vma->vm_pgoff,
+			       vma->vm_end - vma->vm_start,
+			       vma->vm_page_prot);
+}
+
 static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
 			     int nents, enum dma_data_direction direction,
 			     struct dma_attrs *attrs)
@@ -156,6 +174,7 @@ static inline void dma_direct_sync_single(struct device *dev,
 struct dma_map_ops dma_direct_ops = {
 	.alloc				= dma_direct_alloc_coherent,
 	.free				= dma_direct_free_coherent,
+	.mmap				= dma_direct_mmap_coherent,
 	.map_sg				= dma_direct_map_sg,
 	.unmap_sg			= dma_direct_unmap_sg,
 	.dma_supported			= dma_direct_dma_supported,
@@ -219,20 +238,3 @@ static int __init dma_init(void)
 }
 fs_initcall(dma_init);
 
-int dma_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
-		      void *cpu_addr, dma_addr_t handle, size_t size)
-{
-	unsigned long pfn;
-
-#ifdef CONFIG_NOT_COHERENT_CACHE
-	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
-	pfn = __dma_get_coherent_pfn((unsigned long)cpu_addr);
-#else
-	pfn = page_to_pfn(virt_to_page(cpu_addr));
-#endif
-	return remap_pfn_range(vma, vma->vm_start,
-			       pfn + vma->vm_pgoff,
-			       vma->vm_end - vma->vm_start,
-			       vma->vm_page_prot);
-}
-EXPORT_SYMBOL_GPL(dma_mmap_coherent);
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index 5207d5a405e2..ead5016b02d0 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -89,10 +89,14 @@ crit_transfer_to_handler:
 	mfspr	r0,SPRN_SRR1
 	stw	r0,_SRR1(r11)
 
+	/* set the stack limit to the current stack
+	 * and set the limit to protect the thread_info
+	 * struct
+	 */
 	mfspr	r8,SPRN_SPRG_THREAD
 	lwz	r0,KSP_LIMIT(r8)
 	stw	r0,SAVED_KSP_LIMIT(r11)
-	CURRENT_THREAD_INFO(r0, r1)
+	rlwimi	r0,r1,0,0,(31-THREAD_SHIFT)
 	stw	r0,KSP_LIMIT(r8)
 	/* fall through */
 #endif
@@ -109,10 +113,14 @@ crit_transfer_to_handler:
 	mfspr	r0,SPRN_SRR1
 	stw	r0,crit_srr1@l(0)
 
+	/* set the stack limit to the current stack
+	 * and set the limit to protect the thread_info
+	 * struct
+	 */
 	mfspr	r8,SPRN_SPRG_THREAD
 	lwz	r0,KSP_LIMIT(r8)
 	stw	r0,saved_ksp_limit@l(0)
-	CURRENT_THREAD_INFO(r0, r1)
+	rlwimi	r0,r1,0,0,(31-THREAD_SHIFT)
 	stw	r0,KSP_LIMIT(r8)
 	/* fall through */
 #endif
diff --git a/arch/powerpc/kernel/ftrace.c b/arch/powerpc/kernel/ftrace.c
index 91b46b7f6f0d..1fb78561096a 100644
--- a/arch/powerpc/kernel/ftrace.c
+++ b/arch/powerpc/kernel/ftrace.c
@@ -630,18 +630,17 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
 		return;
 	}
 
-	if (ftrace_push_return_trace(old, self_addr, &trace.depth, 0) == -EBUSY) {
-		*parent = old;
-		return;
-	}
-
 	trace.func = self_addr;
+	trace.depth = current->curr_ret_stack + 1;
 
 	/* Only trace if the calling function expects to */
 	if (!ftrace_graph_entry(&trace)) {
-		current->curr_ret_stack--;
 		*parent = old;
+		return;
 	}
+
+	if (ftrace_push_return_trace(old, self_addr, &trace.depth, 0) == -EBUSY)
+		*parent = old;
 }
 #endif /* CONFIG_FUNCTION_GRAPH_TRACER */
 
diff --git a/arch/powerpc/kernel/rtas_flash.c b/arch/powerpc/kernel/rtas_flash.c
index 4174b4b23246..2c0ee6405633 100644
--- a/arch/powerpc/kernel/rtas_flash.c
+++ b/arch/powerpc/kernel/rtas_flash.c
@@ -709,7 +709,7 @@ static int __init rtas_flash_init(void)
 
 	if (rtas_token("ibm,update-flash-64-and-reboot") ==
 		       RTAS_UNKNOWN_SERVICE) {
-		printk(KERN_ERR "rtas_flash: no firmware flash support\n");
+		pr_info("rtas_flash: no firmware flash support\n");
 		return 1;
 	}
 
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 3052a931f2b5..02b32216bbc3 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -611,6 +611,7 @@ static u64 vio_dma_get_required_mask(struct device *dev)
 struct dma_map_ops vio_dma_mapping_ops = {
 	.alloc             = vio_dma_iommu_alloc_coherent,
 	.free              = vio_dma_iommu_free_coherent,
+	.mmap		   = dma_direct_mmap_coherent,
 	.map_sg            = vio_dma_iommu_map_sg,
 	.unmap_sg          = vio_dma_iommu_unmap_sg,
 	.map_page          = vio_dma_iommu_map_page,
diff --git a/arch/powerpc/kvm/book3s_rmhandlers.S b/arch/powerpc/kvm/book3s_rmhandlers.S
index ab523f3c1731..9ecf6e35cd8d 100644
--- a/arch/powerpc/kvm/book3s_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_rmhandlers.S
@@ -67,7 +67,6 @@ kvmppc_skip_Hinterrupt:
 #elif defined(CONFIG_PPC_BOOK3S_32)
 
 #define FUNC(name)		name
-#define MTMSR_EERI(reg)		mtmsr	(reg)
 
 .macro INTERRUPT_TRAMPOLINE intno
 
diff --git a/arch/powerpc/kvm/bookehv_interrupts.S b/arch/powerpc/kvm/bookehv_interrupts.S
index d28c2d43ac1b..099fe8272b57 100644
--- a/arch/powerpc/kvm/bookehv_interrupts.S
+++ b/arch/powerpc/kvm/bookehv_interrupts.S
@@ -50,8 +50,9 @@
 #define HOST_R2         (3 * LONGBYTES)
 #define HOST_CR         (4 * LONGBYTES)
 #define HOST_NV_GPRS    (5 * LONGBYTES)
-#define HOST_NV_GPR(n)  (HOST_NV_GPRS + ((n - 14) * LONGBYTES))
-#define HOST_MIN_STACK_SIZE (HOST_NV_GPR(31) + LONGBYTES)
+#define __HOST_NV_GPR(n)  (HOST_NV_GPRS + ((n - 14) * LONGBYTES))
+#define HOST_NV_GPR(n)  __HOST_NV_GPR(__REG_##n)
+#define HOST_MIN_STACK_SIZE (HOST_NV_GPR(R31) + LONGBYTES)
 #define HOST_STACK_SIZE ((HOST_MIN_STACK_SIZE + 15) & ~15) /* Align. */
 #define HOST_STACK_LR   (HOST_STACK_SIZE + LONGBYTES) /* In caller stack frame. */
 
@@ -410,24 +411,24 @@ heavyweight_exit:
 	PPC_STL	r31, VCPU_GPR(R31)(r4)
 
 	/* Load host non-volatile register state from host stack. */
-	PPC_LL	r14, HOST_NV_GPR(r14)(r1)
-	PPC_LL	r15, HOST_NV_GPR(r15)(r1)
-	PPC_LL	r16, HOST_NV_GPR(r16)(r1)
-	PPC_LL	r17, HOST_NV_GPR(r17)(r1)
-	PPC_LL	r18, HOST_NV_GPR(r18)(r1)
-	PPC_LL	r19, HOST_NV_GPR(r19)(r1)
-	PPC_LL	r20, HOST_NV_GPR(r20)(r1)
-	PPC_LL	r21, HOST_NV_GPR(r21)(r1)
-	PPC_LL	r22, HOST_NV_GPR(r22)(r1)
-	PPC_LL	r23, HOST_NV_GPR(r23)(r1)
-	PPC_LL	r24, HOST_NV_GPR(r24)(r1)
-	PPC_LL	r25, HOST_NV_GPR(r25)(r1)
-	PPC_LL	r26, HOST_NV_GPR(r26)(r1)
-	PPC_LL	r27, HOST_NV_GPR(r27)(r1)
-	PPC_LL	r28, HOST_NV_GPR(r28)(r1)
-	PPC_LL	r29, HOST_NV_GPR(r29)(r1)
-	PPC_LL	r30, HOST_NV_GPR(r30)(r1)
-	PPC_LL	r31, HOST_NV_GPR(r31)(r1)
+	PPC_LL	r14, HOST_NV_GPR(R14)(r1)
+	PPC_LL	r15, HOST_NV_GPR(R15)(r1)
+	PPC_LL	r16, HOST_NV_GPR(R16)(r1)
+	PPC_LL	r17, HOST_NV_GPR(R17)(r1)
+	PPC_LL	r18, HOST_NV_GPR(R18)(r1)
+	PPC_LL	r19, HOST_NV_GPR(R19)(r1)
+	PPC_LL	r20, HOST_NV_GPR(R20)(r1)
+	PPC_LL	r21, HOST_NV_GPR(R21)(r1)
+	PPC_LL	r22, HOST_NV_GPR(R22)(r1)
+	PPC_LL	r23, HOST_NV_GPR(R23)(r1)
+	PPC_LL	r24, HOST_NV_GPR(R24)(r1)
+	PPC_LL	r25, HOST_NV_GPR(R25)(r1)
+	PPC_LL	r26, HOST_NV_GPR(R26)(r1)
+	PPC_LL	r27, HOST_NV_GPR(R27)(r1)
+	PPC_LL	r28, HOST_NV_GPR(R28)(r1)
+	PPC_LL	r29, HOST_NV_GPR(R29)(r1)
+	PPC_LL	r30, HOST_NV_GPR(R30)(r1)
+	PPC_LL	r31, HOST_NV_GPR(R31)(r1)
 
 	/* Return to kvm_vcpu_run(). */
 	mtlr	r5
@@ -453,24 +454,24 @@ _GLOBAL(__kvmppc_vcpu_run)
 	stw	r5, HOST_CR(r1)
 
 	/* Save host non-volatile register state to stack. */
-	PPC_STL	r14, HOST_NV_GPR(r14)(r1)
-	PPC_STL	r15, HOST_NV_GPR(r15)(r1)
-	PPC_STL	r16, HOST_NV_GPR(r16)(r1)
-	PPC_STL	r17, HOST_NV_GPR(r17)(r1)
-	PPC_STL	r18, HOST_NV_GPR(r18)(r1)
-	PPC_STL	r19, HOST_NV_GPR(r19)(r1)
-	PPC_STL	r20, HOST_NV_GPR(r20)(r1)
-	PPC_STL	r21, HOST_NV_GPR(r21)(r1)
-	PPC_STL	r22, HOST_NV_GPR(r22)(r1)
-	PPC_STL	r23, HOST_NV_GPR(r23)(r1)
-	PPC_STL	r24, HOST_NV_GPR(r24)(r1)
-	PPC_STL	r25, HOST_NV_GPR(r25)(r1)
-	PPC_STL	r26, HOST_NV_GPR(r26)(r1)
-	PPC_STL	r27, HOST_NV_GPR(r27)(r1)
-	PPC_STL	r28, HOST_NV_GPR(r28)(r1)
-	PPC_STL	r29, HOST_NV_GPR(r29)(r1)
-	PPC_STL	r30, HOST_NV_GPR(r30)(r1)
-	PPC_STL	r31, HOST_NV_GPR(r31)(r1)
+	PPC_STL	r14, HOST_NV_GPR(R14)(r1)
+	PPC_STL	r15, HOST_NV_GPR(R15)(r1)
+	PPC_STL	r16, HOST_NV_GPR(R16)(r1)
+	PPC_STL	r17, HOST_NV_GPR(R17)(r1)
+	PPC_STL	r18, HOST_NV_GPR(R18)(r1)
+	PPC_STL	r19, HOST_NV_GPR(R19)(r1)
+	PPC_STL	r20, HOST_NV_GPR(R20)(r1)
+	PPC_STL	r21, HOST_NV_GPR(R21)(r1)
+	PPC_STL	r22, HOST_NV_GPR(R22)(r1)
+	PPC_STL	r23, HOST_NV_GPR(R23)(r1)
+	PPC_STL	r24, HOST_NV_GPR(R24)(r1)
+	PPC_STL	r25, HOST_NV_GPR(R25)(r1)
+	PPC_STL	r26, HOST_NV_GPR(R26)(r1)
+	PPC_STL	r27, HOST_NV_GPR(R27)(r1)
+	PPC_STL	r28, HOST_NV_GPR(R28)(r1)
+	PPC_STL	r29, HOST_NV_GPR(R29)(r1)
+	PPC_STL	r30, HOST_NV_GPR(R30)(r1)
+	PPC_STL	r31, HOST_NV_GPR(R31)(r1)
 
 	/* Load guest non-volatiles. */
 	PPC_LL	r14, VCPU_GPR(R14)(r4)
diff --git a/arch/powerpc/platforms/85xx/p1022_ds.c b/arch/powerpc/platforms/85xx/p1022_ds.c
index 89ee02c54561..3c732acf331d 100644
--- a/arch/powerpc/platforms/85xx/p1022_ds.c
+++ b/arch/powerpc/platforms/85xx/p1022_ds.c
@@ -208,6 +208,7 @@ static void p1022ds_set_monitor_port(enum fsl_diu_monitor_port port)
 	u8 __iomem *lbc_lcs0_ba = NULL;
 	u8 __iomem *lbc_lcs1_ba = NULL;
 	phys_addr_t cs0_addr, cs1_addr;
+	u32 br0, or0, br1, or1;
 	const __be32 *iprop;
 	unsigned int num_laws;
 	u8 b;
@@ -256,11 +257,70 @@ static void p1022ds_set_monitor_port(enum fsl_diu_monitor_port port)
 	}
 	num_laws = be32_to_cpup(iprop);
 
-	cs0_addr = lbc_br_to_phys(ecm, num_laws, in_be32(&lbc->bank[0].br));
-	cs1_addr = lbc_br_to_phys(ecm, num_laws, in_be32(&lbc->bank[1].br));
+	/*
+	 * Indirect mode requires both BR0 and BR1 to be set to "GPCM",
+	 * otherwise writes to these addresses won't actually appear on the
+	 * local bus, and so the PIXIS won't see them.
+	 *
+	 * In FCM mode, writes go to the NAND controller, which does not pass
+	 * them to the localbus directly.  So we force BR0 and BR1 into GPCM
+	 * mode, since we don't care about what's behind the localbus any
+	 * more.
+	 */
+	br0 = in_be32(&lbc->bank[0].br);
+	br1 = in_be32(&lbc->bank[1].br);
+	or0 = in_be32(&lbc->bank[0].or);
+	or1 = in_be32(&lbc->bank[1].or);
+
+	/* Make sure CS0 and CS1 are programmed */
+	if (!(br0 & BR_V) || !(br1 & BR_V)) {
+		pr_err("p1022ds: CS0 and/or CS1 is not programmed\n");
+		goto exit;
+	}
+
+	/*
+	 * Use the existing BRx/ORx values if it's already GPCM. Otherwise,
+	 * force the values to simple 32KB GPCM windows with the most
+	 * conservative timing.
+	 */
+	if ((br0 & BR_MSEL) != BR_MS_GPCM) {
+		br0 = (br0 & BR_BA) | BR_V;
+		or0 = 0xFFFF8000 | 0xFF7;
+		out_be32(&lbc->bank[0].br, br0);
+		out_be32(&lbc->bank[0].or, or0);
+	}
+	if ((br1 & BR_MSEL) != BR_MS_GPCM) {
+		br1 = (br1 & BR_BA) | BR_V;
+		or1 = 0xFFFF8000 | 0xFF7;
+		out_be32(&lbc->bank[1].br, br1);
+		out_be32(&lbc->bank[1].or, or1);
+	}
+
+	cs0_addr = lbc_br_to_phys(ecm, num_laws, br0);
+	if (!cs0_addr) {
+		pr_err("p1022ds: could not determine physical address for CS0"
+		       " (BR0=%08x)\n", br0);
+		goto exit;
+	}
+	cs1_addr = lbc_br_to_phys(ecm, num_laws, br1);
+	if (!cs0_addr) {
+		pr_err("p1022ds: could not determine physical address for CS1"
+		       " (BR1=%08x)\n", br1);
+		goto exit;
+	}
 
 	lbc_lcs0_ba = ioremap(cs0_addr, 1);
+	if (!lbc_lcs0_ba) {
+		pr_err("p1022ds: could not ioremap CS0 address %llx\n",
+		       (unsigned long long)cs0_addr);
+		goto exit;
+	}
 	lbc_lcs1_ba = ioremap(cs1_addr, 1);
+	if (!lbc_lcs1_ba) {
+		pr_err("p1022ds: could not ioremap CS1 address %llx\n",
+		       (unsigned long long)cs1_addr);
+		goto exit;
+	}
 
 	/* Make sure we're in indirect mode first. */
 	if ((in_be32(&guts->pmuxcr) & PMUXCR_ELBCDIU_MASK) !=
@@ -419,18 +479,6 @@ void __init p1022_ds_pic_init(void)
 
 #if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
 
-/*
- * Disables a node in the device tree.
- *
- * This function is called before kmalloc() is available, so the 'new' object
- * should be allocated in the global area.  The easiest way is to do that is
- * to allocate one static local variable for each call to this function.
- */
-static void __init disable_one_node(struct device_node *np, struct property *new)
-{
-	prom_update_property(np, new);
-}
-
 /* TRUE if there is a "video=fslfb" command-line parameter. */
 static bool fslfb;
 
@@ -493,28 +541,58 @@ static void __init p1022_ds_setup_arch(void)
 	diu_ops.valid_monitor_port	= p1022ds_valid_monitor_port;
 
 	/*
-	 * Disable the NOR flash node if there is video=fslfb... command-line
-	 * parameter.  When the DIU is active, NOR flash is unavailable, so we
-	 * have to disable the node before the MTD driver loads.
+	 * Disable the NOR and NAND flash nodes if there is video=fslfb...
+	 * command-line parameter.  When the DIU is active, the localbus is
+	 * unavailable, so we have to disable these nodes before the MTD
+	 * driver loads.
 	 */
 	if (fslfb) {
 		struct device_node *np =
 			of_find_compatible_node(NULL, NULL, "fsl,p1022-elbc");
 
 		if (np) {
-			np = of_find_compatible_node(np, NULL, "cfi-flash");
-			if (np) {
+			struct device_node *np2;
+
+			of_node_get(np);
+			np2 = of_find_compatible_node(np, NULL, "cfi-flash");
+			if (np2) {
 				static struct property nor_status = {
 					.name = "status",
 					.value = "disabled",
 					.length = sizeof("disabled"),
 				};
 
+				/*
+				 * prom_update_property() is called before
+				 * kmalloc() is available, so the 'new' object
+				 * should be allocated in the global area.
+				 * The easiest way is to do that is to
+				 * allocate one static local variable for each
+				 * call to this function.
+				 */
 				pr_info("p1022ds: disabling %s node",
-					np->full_name);
-				disable_one_node(np, &nor_status);
-				of_node_put(np);
+					np2->full_name);
+				prom_update_property(np2, &nor_status);
+				of_node_put(np2);
 			}
+
+			of_node_get(np);
+			np2 = of_find_compatible_node(np, NULL,
+						      "fsl,elbc-fcm-nand");
+			if (np2) {
+				static struct property nand_status = {
+					.name = "status",
+					.value = "disabled",
+					.length = sizeof("disabled"),
+				};
+
+				pr_info("p1022ds: disabling %s node",
+					np2->full_name);
+				prom_update_property(np2, &nand_status);
+				of_node_put(np2);
+			}
+
+			of_node_put(np);
 		}
 
 	}
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index d544d7816df3..dba1ce235da5 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -186,10 +186,13 @@ static void spufs_prune_dir(struct dentry *dir)
 static int spufs_rmdir(struct inode *parent, struct dentry *dir)
 {
 	/* remove all entries */
+	int res;
 	spufs_prune_dir(dir);
 	d_drop(dir);
-
-	return simple_rmdir(parent, dir);
+	res = simple_rmdir(parent, dir);
+	/* We have to give up the mm_struct */
+	spu_forget(SPUFS_I(dir->d_inode)->i_ctx);
+	return res;
 }
 
 static int spufs_fill_dir(struct dentry *dir,
@@ -245,9 +248,6 @@ static int spufs_dir_close(struct inode *inode, struct file *file)
 	mutex_unlock(&parent->i_mutex);
 	WARN_ON(ret);
 
-	/* We have to give up the mm_struct */
-	spu_forget(ctx);
-
 	return dcache_dir_close(inode, file);
 }
 
@@ -450,28 +450,24 @@ spufs_create_context(struct inode *inode, struct dentry *dentry,
 	struct spu_context *neighbor;
 	struct path path = {.mnt = mnt, .dentry = dentry};
 
-	ret = -EPERM;
 	if ((flags & SPU_CREATE_NOSCHED) &&
 	    !capable(CAP_SYS_NICE))
-		goto out_unlock;
+		return -EPERM;
 
-	ret = -EINVAL;
 	if ((flags & (SPU_CREATE_NOSCHED | SPU_CREATE_ISOLATE))
 	    == SPU_CREATE_ISOLATE)
-		goto out_unlock;
+		return -EINVAL;
 
-	ret = -ENODEV;
 	if ((flags & SPU_CREATE_ISOLATE) && !isolated_loader)
-		goto out_unlock;
+		return -ENODEV;
 
 	gang = NULL;
 	neighbor = NULL;
 	affinity = flags & (SPU_CREATE_AFFINITY_MEM | SPU_CREATE_AFFINITY_SPU);
 	if (affinity) {
 		gang = SPUFS_I(inode)->i_gang;
-		ret = -EINVAL;
 		if (!gang)
-			goto out_unlock;
+			return -EINVAL;
 		mutex_lock(&gang->aff_mutex);
 		neighbor = spufs_assert_affinity(flags, gang, aff_filp);
 		if (IS_ERR(neighbor)) {
@@ -492,22 +488,12 @@ spufs_create_context(struct inode *inode, struct dentry *dentry,
 	}
 
 	ret = spufs_context_open(&path);
-	if (ret < 0) {
+	if (ret < 0)
 		WARN_ON(spufs_rmdir(inode, dentry));
-		if (affinity)
-			mutex_unlock(&gang->aff_mutex);
-		mutex_unlock(&inode->i_mutex);
-		spu_forget(SPUFS_I(dentry->d_inode)->i_ctx);
-		goto out;
-	}
 
 out_aff_unlock:
 	if (affinity)
 		mutex_unlock(&gang->aff_mutex);
-out_unlock:
-	mutex_unlock(&inode->i_mutex);
-out:
-	dput(dentry);
 	return ret;
 }
 
@@ -580,18 +566,13 @@ static int spufs_create_gang(struct inode *inode,
 	int ret;
 
 	ret = spufs_mkgang(inode, dentry, mode & S_IRWXUGO);
-	if (ret)
-		goto out;
-
-	ret = spufs_gang_open(&path);
-	if (ret < 0) {
-		int err = simple_rmdir(inode, dentry);
-		WARN_ON(err);
+	if (!ret) {
+		ret = spufs_gang_open(&path);
+		if (ret < 0) {
+			int err = simple_rmdir(inode, dentry);
+			WARN_ON(err);
+		}
 	}
-
-out:
-	mutex_unlock(&inode->i_mutex);
-	dput(dentry);
 	return ret;
 }
 
@@ -601,40 +582,32 @@ static struct file_system_type spufs_type;
 long spufs_create(struct path *path, struct dentry *dentry,
 		unsigned int flags, umode_t mode, struct file *filp)
 {
+	struct inode *dir = path->dentry->d_inode;
 	int ret;
 
-	ret = -EINVAL;
 	/* check if we are on spufs */
 	if (path->dentry->d_sb->s_type != &spufs_type)
-		goto out;
+		return -EINVAL;
 
 	/* don't accept undefined flags */
 	if (flags & (~SPU_CREATE_FLAG_ALL))
-		goto out;
+		return -EINVAL;
 
 	/* only threads can be underneath a gang */
-	if (path->dentry != path->dentry->d_sb->s_root) {
-		if ((flags & SPU_CREATE_GANG) ||
-		    !SPUFS_I(path->dentry->d_inode)->i_gang)
-			goto out;
-	}
+	if (path->dentry != path->dentry->d_sb->s_root)
+		if ((flags & SPU_CREATE_GANG) || !SPUFS_I(dir)->i_gang)
+			return -EINVAL;
 
 	mode &= ~current_umask();
 
 	if (flags & SPU_CREATE_GANG)
-		ret = spufs_create_gang(path->dentry->d_inode,
-					 dentry, path->mnt, mode);
+		ret = spufs_create_gang(dir, dentry, path->mnt, mode);
 	else
-		ret = spufs_create_context(path->dentry->d_inode,
-					    dentry, path->mnt, flags, mode,
+		ret = spufs_create_context(dir, dentry, path->mnt, flags, mode,
 					    filp);
 	if (ret >= 0)
-		fsnotify_mkdir(path->dentry->d_inode, dentry);
-	return ret;
+		fsnotify_mkdir(dir, dentry);
 
-out:
-	mutex_unlock(&path->dentry->d_inode->i_mutex);
-	dput(dentry);
 	return ret;
 }
 
diff --git a/arch/powerpc/platforms/cell/spufs/syscalls.c b/arch/powerpc/platforms/cell/spufs/syscalls.c
index 5665dcc382c7..5b7d8ffbf890 100644
--- a/arch/powerpc/platforms/cell/spufs/syscalls.c
+++ b/arch/powerpc/platforms/cell/spufs/syscalls.c
@@ -70,7 +70,7 @@ static long do_spu_create(const char __user *pathname, unsigned int flags,
 	ret = PTR_ERR(dentry);
 	if (!IS_ERR(dentry)) {
 		ret = spufs_create(&path, dentry, flags, mode, neighbor);
-		path_put(&path);
+		done_path_create(&path, dentry);
 	}
 
 	return ret;
diff --git a/arch/powerpc/sysdev/fsl_85xx_cache_ctlr.h b/arch/powerpc/sysdev/fsl_85xx_cache_ctlr.h
index 60c9c0bd5ba2..2aa97ddb7b78 100644
--- a/arch/powerpc/sysdev/fsl_85xx_cache_ctlr.h
+++ b/arch/powerpc/sysdev/fsl_85xx_cache_ctlr.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 Freescale Semiconductor, Inc
+ * Copyright 2009-2010, 2012 Freescale Semiconductor, Inc
  *
  * QorIQ based Cache Controller Memory Mapped Registers
  *
@@ -91,7 +91,7 @@ struct mpc85xx_l2ctlr {
 
 struct sram_parameters {
 	unsigned int sram_size;
-	uint64_t sram_offset;
+	phys_addr_t sram_offset;
 };
 
 extern int instantiate_cache_sram(struct platform_device *dev,
diff --git a/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c b/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c
index cedabd0f4bfe..68ac3aacb191 100644
--- a/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c
+++ b/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 Freescale Semiconductor, Inc.
+ * Copyright 2009-2010, 2012 Freescale Semiconductor, Inc.
  *
  * QorIQ (P1/P2) L2 controller init for Cache-SRAM instantiation
  *
@@ -31,24 +31,21 @@ static char *sram_size;
 static char *sram_offset;
 struct mpc85xx_l2ctlr __iomem *l2ctlr;
 
-static long get_cache_sram_size(void)
+static int get_cache_sram_params(struct sram_parameters *sram_params)
 {
-	unsigned long val;
+	unsigned long long addr;
+	unsigned int size;
 
-	if (!sram_size || (strict_strtoul(sram_size, 0, &val) < 0))
+	if (!sram_size || (kstrtouint(sram_size, 0, &size) < 0))
 		return -EINVAL;
 
-	return val;
-}
-
-static long get_cache_sram_offset(void)
-{
-	unsigned long val;
-
-	if (!sram_offset || (strict_strtoul(sram_offset, 0, &val) < 0))
+	if (!sram_offset || (kstrtoull(sram_offset, 0, &addr) < 0))
 		return -EINVAL;
 
-	return val;
+	sram_params->sram_offset = addr;
+	sram_params->sram_size = size;
+
+	return 0;
 }
 
 static int __init get_size_from_cmdline(char *str)
@@ -93,17 +90,9 @@ static int __devinit mpc85xx_l2ctlr_of_probe(struct platform_device *dev)
 	}
 	l2cache_size = *prop;
 
-	sram_params.sram_size  = get_cache_sram_size();
-	if ((int)sram_params.sram_size <= 0) {
-		dev_err(&dev->dev,
-			"Entire L2 as cache, Aborting Cache-SRAM stuff\n");
-		return -EINVAL;
-	}
-
-	sram_params.sram_offset  = get_cache_sram_offset();
-	if ((int64_t)sram_params.sram_offset <= 0) {
+	if (get_cache_sram_params(&sram_params)) {
 		dev_err(&dev->dev,
-			"Entire L2 as cache, provide a valid sram offset\n");
+			"Entire L2 as cache, provide valid sram offset and size\n");
 		return -EINVAL;
 	}
 
@@ -125,14 +114,14 @@ static int __devinit mpc85xx_l2ctlr_of_probe(struct platform_device *dev)
 	 * Write bits[0-17] to srbar0
 	 */
 	out_be32(&l2ctlr->srbar0,
-		sram_params.sram_offset & L2SRAM_BAR_MSK_LO18);
+		lower_32_bits(sram_params.sram_offset) & L2SRAM_BAR_MSK_LO18);
 
 	/*
 	 * Write bits[18-21] to srbare0
 	 */
 #ifdef CONFIG_PHYS_64BIT
 	out_be32(&l2ctlr->srbarea0,
-		(sram_params.sram_offset >> 32) & L2SRAM_BARE_MSK_HI4);
+		upper_32_bits(sram_params.sram_offset) & L2SRAM_BARE_MSK_HI4);
 #endif
 
 	clrsetbits_be32(&l2ctlr->ctl, L2CR_L2E, L2CR_L2FI);
diff --git a/arch/powerpc/sysdev/xics/icp-hv.c b/arch/powerpc/sysdev/xics/icp-hv.c
index 253dce98c16e..14469cf9df68 100644
--- a/arch/powerpc/sysdev/xics/icp-hv.c
+++ b/arch/powerpc/sysdev/xics/icp-hv.c
@@ -111,7 +111,7 @@ static unsigned int icp_hv_get_irq(void)
 	if (vec == XICS_IRQ_SPURIOUS)
 		return NO_IRQ;
 
-	irq = irq_radix_revmap_lookup(xics_host, vec);
+	irq = irq_find_mapping(xics_host, vec);
 	if (likely(irq != NO_IRQ)) {
 		xics_push_cppr(vec);
 		return irq;
diff --git a/arch/powerpc/sysdev/xics/icp-native.c b/arch/powerpc/sysdev/xics/icp-native.c
index 4c79b6fbee1c..48861d3fcd07 100644
--- a/arch/powerpc/sysdev/xics/icp-native.c
+++ b/arch/powerpc/sysdev/xics/icp-native.c
@@ -119,7 +119,7 @@ static unsigned int icp_native_get_irq(void)
 	if (vec == XICS_IRQ_SPURIOUS)
 		return NO_IRQ;
 
-	irq = irq_radix_revmap_lookup(xics_host, vec);
+	irq = irq_find_mapping(xics_host, vec);
 	if (likely(irq != NO_IRQ)) {
 		xics_push_cppr(vec);
 		return irq;
diff --git a/arch/powerpc/sysdev/xics/xics-common.c b/arch/powerpc/sysdev/xics/xics-common.c
index cd1d18db92c6..9049d9f44485 100644
--- a/arch/powerpc/sysdev/xics/xics-common.c
+++ b/arch/powerpc/sysdev/xics/xics-common.c
@@ -329,9 +329,6 @@ static int xics_host_map(struct irq_domain *h, unsigned int virq,
 
 	pr_devel("xics: map virq %d, hwirq 0x%lx\n", virq, hw);
 
-	/* Insert the interrupt mapping into the radix tree for fast lookup */
-	irq_radix_revmap_insert(xics_host, virq, hw);
-
 	/* They aren't all level sensitive but we just don't really know */
 	irq_set_status_flags(virq, IRQ_LEVEL);