Merge branch 'wip-2.6.34' into old-private-masterarchived-private-master

16 files changed, 218 insertions, 286 deletions

diff --git a/arch/alpha/kernel/core_t2.c b/arch/alpha/kernel/core_t2.c
index d9980d47ab81..e6d90568b65d 100644
--- a/arch/alpha/kernel/core_t2.c
+++ b/arch/alpha/kernel/core_t2.c
@@ -74,7 +74,7 @@
 # define DBG(args)
 #endif
 
-DEFINE_SPINLOCK(t2_hae_lock);
+DEFINE_RAW_SPINLOCK(t2_hae_lock);
 
 static volatile unsigned int t2_mcheck_any_expected;
 static volatile unsigned int t2_mcheck_last_taken;
diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c
index c0de072b8305..7f912ba3d9ad 100644
--- a/arch/alpha/kernel/irq.c
+++ b/arch/alpha/kernel/irq.c
@@ -18,7 +18,6 @@
 #include <linux/sched.h>
 #include <linux/ptrace.h>
 #include <linux/interrupt.h>
-#include <linux/slab.h>
 #include <linux/random.h>
 #include <linux/init.h>
 #include <linux/irq.h>
@@ -81,7 +80,7 @@ show_interrupts(struct seq_file *p, void *v)
 #endif
 
         if (irq < ACTUAL_NR_IRQS) {
-                spin_lock_irqsave(&irq_desc[irq].lock, flags);
+                raw_spin_lock_irqsave(&irq_desc[irq].lock, flags);
                 action = irq_desc[irq].action;
                 if (!action) 
                         goto unlock;
@@ -105,7 +104,7 @@ show_interrupts(struct seq_file *p, void *v)
 
                 seq_putc(p, '\n');
 unlock:
-                spin_unlock_irqrestore(&irq_desc[irq].lock, flags);
+                raw_spin_unlock_irqrestore(&irq_desc[irq].lock, flags);
         } else if (irq == ACTUAL_NR_IRQS) {
 #ifdef CONFIG_SMP
                 seq_puts(p, "IPI: ");
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 9a3334ae282e..de9d39717808 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -20,7 +20,6 @@
 #include <linux/syscalls.h>
 #include <linux/unistd.h>
 #include <linux/ptrace.h>
-#include <linux/slab.h>
 #include <linux/user.h>
 #include <linux/utsname.h>
 #include <linux/time.h>
@@ -37,6 +36,7 @@
 #include <linux/uio.h>
 #include <linux/vfs.h>
 #include <linux/rcupdate.h>
+#include <linux/slab.h>
 
 #include <asm/fpu.h>
 #include <asm/io.h>
@@ -178,25 +178,18 @@ SYSCALL_DEFINE6(osf_mmap, unsigned long, addr, unsigned long, len,
                 unsigned long, prot, unsigned long, flags, unsigned long, fd,
                 unsigned long, off)
 {
-        struct file *file = NULL;
-        unsigned long ret = -EBADF;
+        unsigned long ret = -EINVAL;
 
 #if 0
         if (flags & (_MAP_HASSEMAPHORE | _MAP_INHERIT | _MAP_UNALIGNED))
                 printk("%s: unimplemented OSF mmap flags %04lx\n", 
                         current->comm, flags);
 #endif
-        if (!(flags & MAP_ANONYMOUS)) {
-                file = fget(fd);
-                if (!file)
-                        goto out;
-        }
-        flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-        down_write(&current->mm->mmap_sem);
-        ret = do_mmap(file, addr, len, prot, flags, off);
-        up_write(&current->mm->mmap_sem);
-        if (file)
-                fput(file);
+        if ((off + PAGE_ALIGN(len)) < off)
+                goto out;
+        if (off & ~PAGE_MASK)
+                goto out;
+        ret = sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
  out:
         return ret;
 }
@@ -368,7 +361,7 @@ osf_procfs_mount(char *dirname, struct procfs_args __user *args, int flags)
 SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, char __user *, path,
                 int, flag, void __user *, data)
 {
-        int retval = -EINVAL;
+        int retval;
         char *name;
 
         name = getname(path);
@@ -386,6 +379,7 @@ SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, char __user *, path,
                 retval = osf_procfs_mount(name, data, flag);
                 break;
         default:
+                retval = -EINVAL;
                 printk("osf_mount(%ld, %x)\n", typenr, flag);
         }
         putname(name);
diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index c19a376520f4..246100ef07c2 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -7,6 +7,7 @@
 #include <linux/pci.h>
 #include <linux/init.h>
 #include <linux/bootmem.h>
+#include <linux/gfp.h>
 #include <linux/capability.h>
 #include <linux/mm.h>
 #include <linux/errno.h>
@@ -106,58 +107,8 @@ sys_pciconfig_write(unsigned long bus, unsigned long dfn,
                 return -ENODEV;
 }
 
-/* Stubs for the routines in pci_iommu.c: */
-
-void *
-__pci_alloc_consistent(struct pci_dev *pdev, size_t size,
-                       dma_addr_t *dma_addrp, gfp_t gfp)
-{
-        return NULL;
-}
-
-void
-pci_free_consistent(struct pci_dev *pdev, size_t size, void *cpu_addr,
-                    dma_addr_t dma_addr)
-{
-}
-
-dma_addr_t
-pci_map_single(struct pci_dev *pdev, void *cpu_addr, size_t size,
-               int direction)
-{
-        return (dma_addr_t) 0;
-}
-
-void
-pci_unmap_single(struct pci_dev *pdev, dma_addr_t dma_addr, size_t size,
-                 int direction)
-{
-}
-
-int
-pci_map_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents,
-           int direction)
-{
-        return 0;
-}
-
-void
-pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents,
-             int direction)
-{
-}
-
-int
-pci_dma_supported(struct pci_dev *hwdev, dma_addr_t mask)
-{
-        return 0;
-}
-
-/* Generic DMA mapping functions: */
-
-void *
-dma_alloc_coherent(struct device *dev, size_t size,
-                   dma_addr_t *dma_handle, gfp_t gfp)
+static void *alpha_noop_alloc_coherent(struct device *dev, size_t size,
+                                       dma_addr_t *dma_handle, gfp_t gfp)
 {
         void *ret;
 
@@ -171,11 +122,22 @@ dma_alloc_coherent(struct device *dev, size_t size,
         return ret;
 }
 
-EXPORT_SYMBOL(dma_alloc_coherent);
+static void alpha_noop_free_coherent(struct device *dev, size_t size,
+                                     void *cpu_addr, dma_addr_t dma_addr)
+{
+        free_pages((unsigned long)cpu_addr, get_order(size));
+}
+
+static dma_addr_t alpha_noop_map_page(struct device *dev, struct page *page,
+                                      unsigned long offset, size_t size,
+                                      enum dma_data_direction dir,
+                                      struct dma_attrs *attrs)
+{
+        return page_to_pa(page) + offset;
+}
 
-int
-dma_map_sg(struct device *dev, struct scatterlist *sgl, int nents,
-           enum dma_data_direction direction)
+static int alpha_noop_map_sg(struct device *dev, struct scatterlist *sgl, int nents,
+                             enum dma_data_direction dir, struct dma_attrs *attrs)
 {
         int i;
         struct scatterlist *sg;
@@ -192,19 +154,37 @@ dma_map_sg(struct device *dev, struct scatterlist *sgl, int nents,
         return nents;
 }
 
-EXPORT_SYMBOL(dma_map_sg);
+static int alpha_noop_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+        return 0;
+}
+
+static int alpha_noop_supported(struct device *dev, u64 mask)
+{
+        return mask < 0x00ffffffUL ? 0 : 1;
+}
 
-int
-dma_set_mask(struct device *dev, u64 mask)
+static int alpha_noop_set_mask(struct device *dev, u64 mask)
 {
         if (!dev->dma_mask || !dma_supported(dev, mask))
                 return -EIO;
 
         *dev->dma_mask = mask;
-
         return 0;
 }
-EXPORT_SYMBOL(dma_set_mask);
+
+struct dma_map_ops alpha_noop_ops = {
+        .alloc_coherent         = alpha_noop_alloc_coherent,
+        .free_coherent          = alpha_noop_free_coherent,
+        .map_page               = alpha_noop_map_page,
+        .map_sg                 = alpha_noop_map_sg,
+        .mapping_error          = alpha_noop_mapping_error,
+        .dma_supported          = alpha_noop_supported,
+        .set_dma_mask           = alpha_noop_set_mask,
+};
+
+struct dma_map_ops *dma_ops = &alpha_noop_ops;
+EXPORT_SYMBOL(dma_ops);
 
 void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
 {
diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.c
index 6ea822e7f724..d979e7c7bc4b 100644
--- a/arch/alpha/kernel/pci-sysfs.c
+++ b/arch/alpha/kernel/pci-sysfs.c
@@ -10,6 +10,7 @@
  */
 
 #include <linux/sched.h>
+#include <linux/slab.h>
 #include <linux/pci.h>
 
 static int hose_mmap_page_range(struct pci_controller *hose,
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index a91ba28999b5..c9ab94ee1ca8 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -126,8 +126,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, pcibios_fixup_final);
 #define MB                      (1024*KB)
 #define GB                      (1024*MB)
 
-void
-pcibios_align_resource(void *data, struct resource *res,
+resource_size_t
+pcibios_align_resource(void *data, const struct resource *res,
                        resource_size_t size, resource_size_t align)
 {
         struct pci_dev *dev = data;
@@ -184,7 +184,7 @@ pcibios_align_resource(void *data, struct resource *res,
                 }
         }
 
-        res->start = start;
+        return start;
 }
 #undef KB
 #undef MB
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index 8449504f5e0b..d1dbd9acd1df 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -5,7 +5,7 @@
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/pci.h>
-#include <linux/slab.h>
+#include <linux/gfp.h>
 #include <linux/bootmem.h>
 #include <linux/scatterlist.h>
 #include <linux/log2.h>
@@ -216,10 +216,30 @@ iommu_arena_free(struct pci_iommu_arena *arena, long ofs, long n)
         for (i = 0; i < n; ++i)
                 p[i] = 0;
 }
-
-/* True if the machine supports DAC addressing, and DEV can
-   make use of it given MASK.  */
-static int pci_dac_dma_supported(struct pci_dev *hwdev, u64 mask);
+
+/*
+ * True if the machine supports DAC addressing, and DEV can
+ * make use of it given MASK.
+ */
+static int pci_dac_dma_supported(struct pci_dev *dev, u64 mask)
+{
+        dma64_addr_t dac_offset = alpha_mv.pci_dac_offset;
+        int ok = 1;
+
+        /* If this is not set, the machine doesn't support DAC at all.  */
+        if (dac_offset == 0)
+                ok = 0;
+
+        /* The device has to be able to address our DAC bit.  */
+        if ((dac_offset & dev->dma_mask) != dac_offset)
+                ok = 0;
+
+        /* If both conditions above are met, we are fine. */
+        DBGA("pci_dac_dma_supported %s from %p\n",
+             ok ? "yes" : "no", __builtin_return_address(0));
+
+        return ok;
+}
 
 /* Map a single buffer of the indicated size for PCI DMA in streaming
    mode.  The 32-bit PCI bus mastering address to use is returned.
@@ -301,23 +321,36 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size,
         return ret;
 }
 
-dma_addr_t
-pci_map_single(struct pci_dev *pdev, void *cpu_addr, size_t size, int dir)
+/* Helper for generic DMA-mapping functions. */
+static struct pci_dev *alpha_gendev_to_pci(struct device *dev)
 {
-        int dac_allowed; 
+        if (dev && dev->bus == &pci_bus_type)
+                return to_pci_dev(dev);
 
-        if (dir == PCI_DMA_NONE)
-                BUG();
+        /* Assume that non-PCI devices asking for DMA are either ISA or EISA,
+           BUG() otherwise. */
+        BUG_ON(!isa_bridge);
 
-        dac_allowed = pdev ? pci_dac_dma_supported(pdev, pdev->dma_mask) : 0; 
-        return pci_map_single_1(pdev, cpu_addr, size, dac_allowed);
+        /* Assume non-busmaster ISA DMA when dma_mask is not set (the ISA
+           bridge is bus master then). */
+        if (!dev || !dev->dma_mask || !*dev->dma_mask)
+                return isa_bridge;
+
+        /* For EISA bus masters, return isa_bridge (it might have smaller
+           dma_mask due to wiring limitations). */
+        if (*dev->dma_mask >= isa_bridge->dma_mask)
+                return isa_bridge;
+
+        /* This assumes ISA bus master with dma_mask 0xffffff. */
+        return NULL;
 }
-EXPORT_SYMBOL(pci_map_single);
 
-dma_addr_t
-pci_map_page(struct pci_dev *pdev, struct page *page, unsigned long offset,
-             size_t size, int dir)
+static dma_addr_t alpha_pci_map_page(struct device *dev, struct page *page,
+                                     unsigned long offset, size_t size,
+                                     enum dma_data_direction dir,
+                                     struct dma_attrs *attrs)
 {
+        struct pci_dev *pdev = alpha_gendev_to_pci(dev);
         int dac_allowed;
 
         if (dir == PCI_DMA_NONE)
@@ -327,7 +360,6 @@ pci_map_page(struct pci_dev *pdev, struct page *page, unsigned long offset,
         return pci_map_single_1(pdev, (char *)page_address(page) + offset, 
                                 size, dac_allowed);
 }
-EXPORT_SYMBOL(pci_map_page);
 
 /* Unmap a single streaming mode DMA translation.  The DMA_ADDR and
    SIZE must match what was provided for in a previous pci_map_single
@@ -335,16 +367,17 @@ EXPORT_SYMBOL(pci_map_page);
    the cpu to the buffer are guaranteed to see whatever the device
    wrote there.  */
 
-void
-pci_unmap_single(struct pci_dev *pdev, dma_addr_t dma_addr, size_t size,
-                 int direction)
+static void alpha_pci_unmap_page(struct device *dev, dma_addr_t dma_addr,
+                                 size_t size, enum dma_data_direction dir,
+                                 struct dma_attrs *attrs)
 {
         unsigned long flags;
+        struct pci_dev *pdev = alpha_gendev_to_pci(dev);
         struct pci_controller *hose = pdev ? pdev->sysdata : pci_isa_hose;
         struct pci_iommu_arena *arena;
         long dma_ofs, npages;
 
-        if (direction == PCI_DMA_NONE)
+        if (dir == PCI_DMA_NONE)
                 BUG();
 
         if (dma_addr >= __direct_map_base
@@ -393,25 +426,16 @@ pci_unmap_single(struct pci_dev *pdev, dma_addr_t dma_addr, size_t size,
         DBGA2("pci_unmap_single: sg [%llx,%zx] np %ld from %p\n",
               dma_addr, size, npages, __builtin_return_address(0));
 }
-EXPORT_SYMBOL(pci_unmap_single);
-
-void
-pci_unmap_page(struct pci_dev *pdev, dma_addr_t dma_addr,
-               size_t size, int direction)
-{
-        pci_unmap_single(pdev, dma_addr, size, direction);
-}
-EXPORT_SYMBOL(pci_unmap_page);
 
 /* Allocate and map kernel buffer using consistent mode DMA for PCI
    device.  Returns non-NULL cpu-view pointer to the buffer if
    successful and sets *DMA_ADDRP to the pci side dma address as well,
    else DMA_ADDRP is undefined.  */
 
-void *
-__pci_alloc_consistent(struct pci_dev *pdev, size_t size,
-                       dma_addr_t *dma_addrp, gfp_t gfp)
+static void *alpha_pci_alloc_coherent(struct device *dev, size_t size,
+                                      dma_addr_t *dma_addrp, gfp_t gfp)
 {
+        struct pci_dev *pdev = alpha_gendev_to_pci(dev);
         void *cpu_addr;
         long order = get_order(size);
 
@@ -439,13 +463,12 @@ try_again:
                 gfp |= GFP_DMA;
                 goto try_again;
         }
-                
+
         DBGA2("pci_alloc_consistent: %zx -> [%p,%llx] from %p\n",
               size, cpu_addr, *dma_addrp, __builtin_return_address(0));
 
         return cpu_addr;
 }
-EXPORT_SYMBOL(__pci_alloc_consistent);
 
 /* Free and unmap a consistent DMA buffer.  CPU_ADDR and DMA_ADDR must
    be values that were returned from pci_alloc_consistent.  SIZE must
@@ -453,17 +476,16 @@ EXPORT_SYMBOL(__pci_alloc_consistent);
    References to the memory and mappings associated with CPU_ADDR or
    DMA_ADDR past this call are illegal.  */
 
-void
-pci_free_consistent(struct pci_dev *pdev, size_t size, void *cpu_addr,
-                    dma_addr_t dma_addr)
+static void alpha_pci_free_coherent(struct device *dev, size_t size,
+                                    void *cpu_addr, dma_addr_t dma_addr)
 {
+        struct pci_dev *pdev = alpha_gendev_to_pci(dev);
         pci_unmap_single(pdev, dma_addr, size, PCI_DMA_BIDIRECTIONAL);
         free_pages((unsigned long)cpu_addr, get_order(size));
 
         DBGA2("pci_free_consistent: [%llx,%zx] from %p\n",
               dma_addr, size, __builtin_return_address(0));
 }
-EXPORT_SYMBOL(pci_free_consistent);
 
 /* Classify the elements of the scatterlist.  Write dma_address
    of each element with:
@@ -626,23 +648,21 @@ sg_fill(struct device *dev, struct scatterlist *leader, struct scatterlist *end,
         return 1;
 }
 
-int
-pci_map_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents,
-           int direction)
+static int alpha_pci_map_sg(struct device *dev, struct scatterlist *sg,
+                            int nents, enum dma_data_direction dir,
+                            struct dma_attrs *attrs)
 {
+        struct pci_dev *pdev = alpha_gendev_to_pci(dev);
         struct scatterlist *start, *end, *out;
         struct pci_controller *hose;
         struct pci_iommu_arena *arena;
         dma_addr_t max_dma;
         int dac_allowed;
-        struct device *dev;
 
-        if (direction == PCI_DMA_NONE)
+        if (dir == PCI_DMA_NONE)
                 BUG();
 
-        dac_allowed = pdev ? pci_dac_dma_supported(pdev, pdev->dma_mask) : 0;
-
-        dev = pdev ? &pdev->dev : NULL;
+        dac_allowed = dev ? pci_dac_dma_supported(pdev, pdev->dma_mask) : 0;
 
         /* Fast path single entry scatterlists.  */
         if (nents == 1) {
@@ -699,19 +719,19 @@ pci_map_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents,
         /* Some allocation failed while mapping the scatterlist
            entries.  Unmap them now.  */
         if (out > start)
-                pci_unmap_sg(pdev, start, out - start, direction);
+                pci_unmap_sg(pdev, start, out - start, dir);
         return 0;
 }
-EXPORT_SYMBOL(pci_map_sg);
 
 /* Unmap a set of streaming mode DMA translations.  Again, cpu read
    rules concerning calls here are the same as for pci_unmap_single()
    above.  */
 
-void
-pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents,
-             int direction)
+static void alpha_pci_unmap_sg(struct device *dev, struct scatterlist *sg,
+                               int nents, enum dma_data_direction dir,
+                               struct dma_attrs *attrs)
 {
+        struct pci_dev *pdev = alpha_gendev_to_pci(dev);
         unsigned long flags;
         struct pci_controller *hose;
         struct pci_iommu_arena *arena;
@@ -719,7 +739,7 @@ pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents,
         dma_addr_t max_dma;
         dma_addr_t fbeg, fend;
 
-        if (direction == PCI_DMA_NONE)
+        if (dir == PCI_DMA_NONE)
                 BUG();
 
         if (! alpha_mv.mv_pci_tbi)
@@ -783,15 +803,13 @@ pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents,
 
         DBGA("pci_unmap_sg: %ld entries\n", nents - (end - sg));
 }
-EXPORT_SYMBOL(pci_unmap_sg);
-
 
 /* Return whether the given PCI device DMA address mask can be
    supported properly.  */
 
-int
-pci_dma_supported(struct pci_dev *pdev, u64 mask)
+static int alpha_pci_supported(struct device *dev, u64 mask)
 {
+        struct pci_dev *pdev = alpha_gendev_to_pci(dev);
         struct pci_controller *hose;
         struct pci_iommu_arena *arena;
 
@@ -818,7 +836,6 @@ pci_dma_supported(struct pci_dev *pdev, u64 mask)
 
         return 0;
 }
-EXPORT_SYMBOL(pci_dma_supported);
 
 
 /*
@@ -918,66 +935,32 @@ iommu_unbind(struct pci_iommu_arena *arena, long pg_start, long pg_count)
         return 0;
 }
 
-/* True if the machine supports DAC addressing, and DEV can
-   make use of it given MASK.  */
-
-static int
-pci_dac_dma_supported(struct pci_dev *dev, u64 mask)
-{
-        dma64_addr_t dac_offset = alpha_mv.pci_dac_offset;
-        int ok = 1;
-
-        /* If this is not set, the machine doesn't support DAC at all.  */
-        if (dac_offset == 0)
-                ok = 0;
-
-        /* The device has to be able to address our DAC bit.  */
-        if ((dac_offset & dev->dma_mask) != dac_offset)
-                ok = 0;
-
-        /* If both conditions above are met, we are fine. */
-        DBGA("pci_dac_dma_supported %s from %p\n",
-             ok ? "yes" : "no", __builtin_return_address(0));
-
-        return ok;
-}
-
-/* Helper for generic DMA-mapping functions. */
-
-struct pci_dev *
-alpha_gendev_to_pci(struct device *dev)
+static int alpha_pci_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
-        if (dev && dev->bus == &pci_bus_type)
-                return to_pci_dev(dev);
-
-        /* Assume that non-PCI devices asking for DMA are either ISA or EISA,
-           BUG() otherwise. */
-        BUG_ON(!isa_bridge);
-
-        /* Assume non-busmaster ISA DMA when dma_mask is not set (the ISA
-           bridge is bus master then). */
-        if (!dev || !dev->dma_mask || !*dev->dma_mask)
-                return isa_bridge;
-
-        /* For EISA bus masters, return isa_bridge (it might have smaller
-           dma_mask due to wiring limitations). */
-        if (*dev->dma_mask >= isa_bridge->dma_mask)
-                return isa_bridge;
-
-        /* This assumes ISA bus master with dma_mask 0xffffff. */
-        return NULL;
+        return dma_addr == 0;
 }
-EXPORT_SYMBOL(alpha_gendev_to_pci);
 
-int
-dma_set_mask(struct device *dev, u64 mask)
+static int alpha_pci_set_mask(struct device *dev, u64 mask)
 {
         if (!dev->dma_mask ||
             !pci_dma_supported(alpha_gendev_to_pci(dev), mask))
                 return -EIO;
 
         *dev->dma_mask = mask;
-
         return 0;
 }
-EXPORT_SYMBOL(dma_set_mask);
+
+struct dma_map_ops alpha_pci_ops = {
+        .alloc_coherent         = alpha_pci_alloc_coherent,
+        .free_coherent          = alpha_pci_free_coherent,
+        .map_page               = alpha_pci_map_page,
+        .unmap_page             = alpha_pci_unmap_page,
+        .map_sg                 = alpha_pci_map_sg,
+        .unmap_sg               = alpha_pci_unmap_sg,
+        .mapping_error          = alpha_pci_mapping_error,
+        .dma_supported          = alpha_pci_supported,
+        .set_dma_mask           = alpha_pci_set_mask,
+};
+
+struct dma_map_ops *dma_ops = &alpha_pci_ops;
+EXPORT_SYMBOL(dma_ops);
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 289039bb6bb2..395a464353b8 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -17,7 +17,6 @@
 #include <linux/stddef.h>
 #include <linux/unistd.h>
 #include <linux/ptrace.h>
-#include <linux/slab.h>
 #include <linux/user.h>
 #include <linux/time.h>
 #include <linux/major.h>
@@ -28,6 +27,7 @@
 #include <linux/reboot.h>
 #include <linux/tty.h>
 #include <linux/console.h>
+#include <linux/slab.h>
 
 #include <asm/reg.h>
 #include <asm/uaccess.h>
diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c
index e072041d19f8..baa903602f6a 100644
--- a/arch/alpha/kernel/ptrace.c
+++ b/arch/alpha/kernel/ptrace.c
@@ -11,7 +11,6 @@
 #include <linux/errno.h>
 #include <linux/ptrace.h>
 #include <linux/user.h>
-#include <linux/slab.h>
 #include <linux/security.h>
 #include <linux/signal.h>
 
@@ -249,6 +248,17 @@ ptrace_cancel_bpt(struct task_struct * child)
         return (nsaved != 0);
 }
 
+void user_enable_single_step(struct task_struct *child)
+{
+        /* Mark single stepping.  */
+        task_thread_info(child)->bpt_nsaved = -1;
+}
+
+void user_disable_single_step(struct task_struct *child)
+{
+        ptrace_cancel_bpt(child);
+}
+
 /*
  * Called by kernel/ptrace.c when detaching..
  *
@@ -256,7 +266,7 @@ ptrace_cancel_bpt(struct task_struct * child)
  */
 void ptrace_disable(struct task_struct *child)
 { 
-        ptrace_cancel_bpt(child);
+        user_disable_single_step(child);
 }
 
 long arch_ptrace(struct task_struct *child, long request, long addr, long data)
@@ -295,52 +305,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                 DBG(DBG_MEM, ("poke $%ld<-%#lx\n", addr, data));
                 ret = put_reg(child, addr, data);
                 break;
-
-        case PTRACE_SYSCALL:
-                /* continue and stop at next (return from) syscall */
-        case PTRACE_CONT:    /* restart after signal. */
-                ret = -EIO;
-                if (!valid_signal(data))
-                        break;
-                if (request == PTRACE_SYSCALL)
-                        set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-                else
-                        clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-                child->exit_code = data;
-                /* make sure single-step breakpoint is gone. */
-                ptrace_cancel_bpt(child);
-                wake_up_process(child);
-                ret = 0;
-                break;
-
-        /*
-         * Make the child exit.  Best I can do is send it a sigkill.
-         * perhaps it should be put in the status that it wants to
-         * exit.
-         */
-        case PTRACE_KILL:
-                ret = 0;
-                if (child->exit_state == EXIT_ZOMBIE)
-                        break;
-                child->exit_code = SIGKILL;
-                /* make sure single-step breakpoint is gone. */
-                ptrace_cancel_bpt(child);
-                wake_up_process(child);
-                break;
-
-        case PTRACE_SINGLESTEP:  /* execute single instruction. */
-                ret = -EIO;
-                if (!valid_signal(data))
-                        break;
-                /* Mark single stepping.  */
-                task_thread_info(child)->bpt_nsaved = -1;
-                clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-                child->exit_code = data;
-                wake_up_process(child);
-                /* give it a chance to run. */
-                ret = 0;
-                break;
-
         default:
                 ret = ptrace_request(child, request, addr, data);
                 break;
diff --git a/arch/alpha/kernel/smc37c669.c b/arch/alpha/kernel/smc37c669.c
index bca5bda90cde..0435921d41c6 100644
--- a/arch/alpha/kernel/smc37c669.c
+++ b/arch/alpha/kernel/smc37c669.c
@@ -3,7 +3,6 @@
  */
 #include <linux/kernel.h>
 
-#include <linux/slab.h>
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/delay.h>
diff --git a/arch/alpha/kernel/smc37c93x.c b/arch/alpha/kernel/smc37c93x.c
index 2636cc028d06..3e6a2893af9f 100644
--- a/arch/alpha/kernel/smc37c93x.c
+++ b/arch/alpha/kernel/smc37c93x.c
@@ -4,7 +4,6 @@
 
 #include <linux/kernel.h>
 
-#include <linux/slab.h>
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/delay.h>
diff --git a/arch/alpha/kernel/srm_env.c b/arch/alpha/kernel/srm_env.c
index d12af472e1c0..4afc1a1e2e5a 100644
--- a/arch/alpha/kernel/srm_env.c
+++ b/arch/alpha/kernel/srm_env.c
@@ -30,9 +30,11 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/gfp.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <asm/console.h>
 #include <asm/uaccess.h>
 #include <asm/machvec.h>
@@ -79,42 +81,41 @@ static srm_env_t	srm_named_entries[] = {
 static srm_env_t        srm_numbered_entries[256];
 
 
-static int
-srm_env_read(char *page, char **start, off_t off, int count, int *eof,
-                void *data)
+static int srm_env_proc_show(struct seq_file *m, void *v)
 {
-        int             nbytes;
         unsigned long   ret;
         srm_env_t       *entry;
+        char            *page;
 
-        if (off != 0) {
-                *eof = 1;
-                return 0;
-        }
+        entry = (srm_env_t *)m->private;
+        page = (char *)__get_free_page(GFP_USER);
+        if (!page)
+                return -ENOMEM;
 
-        entry   = (srm_env_t *) data;
-        ret     = callback_getenv(entry->id, page, count);
+        ret = callback_getenv(entry->id, page, PAGE_SIZE);
 
         if ((ret >> 61) == 0) {
-                nbytes = (int) ret;
-                *eof = 1;
+                seq_write(m, page, ret);
+                ret = 0;
         } else
-                nbytes = -EFAULT;
+                ret = -EFAULT;
+        free_page((unsigned long)page);
+        return ret;
+}
 
-        return nbytes;
+static int srm_env_proc_open(struct inode *inode, struct file *file)
+{
+        return single_open(file, srm_env_proc_show, PDE(inode)->data);
 }
 
-static int
-srm_env_write(struct file *file, const char __user *buffer, unsigned long count,
-                void *data)
+static ssize_t srm_env_proc_write(struct file *file, const char __user *buffer,
+                                  size_t count, loff_t *pos)
 {
         int res;
-        srm_env_t       *entry;
+        srm_env_t       *entry = PDE(file->f_path.dentry->d_inode)->data;
         char            *buf = (char *) __get_free_page(GFP_USER);
         unsigned long   ret1, ret2;
 
-        entry = (srm_env_t *) data;
-
         if (!buf)
                 return -ENOMEM;
 
@@ -140,6 +141,15 @@ srm_env_write(struct file *file, const char __user *buffer, unsigned long count,
         return res;
 }
 
+static const struct file_operations srm_env_proc_fops = {
+        .owner          = THIS_MODULE,
+        .open           = srm_env_proc_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+        .write          = srm_env_proc_write,
+};
+
 static void
 srm_env_cleanup(void)
 {
@@ -245,15 +255,10 @@ srm_env_init(void)
          */
         entry = srm_named_entries;
         while (entry->name && entry->id) {
-                entry->proc_entry = create_proc_entry(entry->name,
-                                0644, named_dir);
+                entry->proc_entry = proc_create_data(entry->name, 0644, named_dir,
+                                                     &srm_env_proc_fops, entry);
                 if (!entry->proc_entry)
                         goto cleanup;
-
-                entry->proc_entry->data         = (void *) entry;
-                entry->proc_entry->read_proc    = srm_env_read;
-                entry->proc_entry->write_proc   = srm_env_write;
-
                 entry++;
         }
 
@@ -264,15 +269,12 @@ srm_env_init(void)
                 entry = &srm_numbered_entries[var_num];
                 entry->name = number[var_num];
 
-                entry->proc_entry = create_proc_entry(entry->name,
-                                0644, numbered_dir);
+                entry->proc_entry = proc_create_data(entry->name, 0644, numbered_dir,
+                                                     &srm_env_proc_fops, entry);
                 if (!entry->proc_entry)
                         goto cleanup;
 
                 entry->id                       = var_num;
-                entry->proc_entry->data         = (void *) entry;
-                entry->proc_entry->read_proc    = srm_env_read;
-                entry->proc_entry->write_proc   = srm_env_write;
         }
 
         printk(KERN_INFO "%s: version %s loaded successfully\n", NAME,
diff --git a/arch/alpha/kernel/sys_dp264.c b/arch/alpha/kernel/sys_dp264.c
index d64e1e497e76..4026502ab707 100644
--- a/arch/alpha/kernel/sys_dp264.c
+++ b/arch/alpha/kernel/sys_dp264.c
@@ -224,7 +224,7 @@ static void
 dp264_device_interrupt(unsigned long vector)
 {
 #if 1
-        printk("dp264_device_interrupt: NOT IMPLEMENTED YET!! \n");
+        printk("dp264_device_interrupt: NOT IMPLEMENTED YET!!\n");
 #else
         unsigned long pld;
         unsigned int i;
diff --git a/arch/alpha/kernel/sys_titan.c b/arch/alpha/kernel/sys_titan.c
index 288053342c83..9008d0f20c53 100644
--- a/arch/alpha/kernel/sys_titan.c
+++ b/arch/alpha/kernel/sys_titan.c
@@ -171,7 +171,7 @@ titan_set_irq_affinity(unsigned int irq, const struct cpumask *affinity)
 static void
 titan_device_interrupt(unsigned long vector)
 {
-        printk("titan_device_interrupt: NOT IMPLEMENTED YET!! \n");
+        printk("titan_device_interrupt: NOT IMPLEMENTED YET!!\n");
 }
 
 static void 
diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S
index 95c9aef1c106..09acb786e72b 100644
--- a/arch/alpha/kernel/systbls.S
+++ b/arch/alpha/kernel/systbls.S
@@ -495,8 +495,23 @@ sys_call_table:
         .quad sys_epoll_pwait
         .quad sys_utimensat                     /* 475 */
         .quad sys_signalfd
-        .quad sys_ni_syscall
+        .quad sys_ni_syscall                    /* sys_timerfd */
         .quad sys_eventfd
+        .quad sys_recvmmsg
+        .quad sys_fallocate                             /* 480 */
+        .quad sys_timerfd_create
+        .quad sys_timerfd_settime
+        .quad sys_timerfd_gettime
+        .quad sys_signalfd4
+        .quad sys_eventfd2                              /* 485 */
+        .quad sys_epoll_create1
+        .quad sys_dup3
+        .quad sys_pipe2
+        .quad sys_inotify_init1
+        .quad sys_preadv                                /* 490 */
+        .quad sys_pwritev
+        .quad sys_rt_tgsigqueueinfo
+        .quad sys_perf_event_open
 
         .size sys_call_table, . - sys_call_table
         .type sys_call_table, @object
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index 6ee7655b7568..b14f015008ad 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -17,6 +17,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/kallsyms.h>
+#include <linux/ratelimit.h>
 
 #include <asm/gentrap.h>
 #include <asm/uaccess.h>
@@ -771,8 +772,7 @@ asmlinkage void
 do_entUnaUser(void __user * va, unsigned long opcode,
               unsigned long reg, struct pt_regs *regs)
 {
-        static int cnt = 0;
-        static unsigned long last_time;
+        static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5);
 
         unsigned long tmp1, tmp2, tmp3, tmp4;
         unsigned long fake_reg, *reg_addr = &fake_reg;
@@ -783,15 +783,11 @@ do_entUnaUser(void __user * va, unsigned long opcode,
            with the unaliged access.  */
 
         if (!test_thread_flag (TIF_UAC_NOPRINT)) {
-                if (cnt >= 5 && time_after(jiffies, last_time + 5 * HZ)) {
-                        cnt = 0;
-                }
-                if (++cnt < 5) {
+                if (__ratelimit(&ratelimit)) {
                         printk("%s(%d): unaligned trap at %016lx: %p %lx %ld\n",
                                current->comm, task_pid_nr(current),
                                regs->pc - 4, va, opcode, reg);
                 }
-                last_time = jiffies;
         }
         if (test_thread_flag (TIF_UAC_SIGBUS))
                 goto give_sigbus;