7 files changed, 19 insertions, 5 deletions

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 09866581a326..e23af4b6ae8c 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -14,6 +14,7 @@ config IA64
         select PCI if (!IA64_HP_SIM)
         select ACPI if (!IA64_HP_SIM)
         select PM if (!IA64_HP_SIM)
+        select ARCH_SUPPORTS_MSI
         default y
         help
           The Itanium Processor Family is Intel's 64-bit successor to
diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
index 9ef62a3fbfad..2fcaa2051aa3 100644
--- a/arch/ia64/kernel/sys_ia64.c
+++ b/arch/ia64/kernel/sys_ia64.c
@@ -33,6 +33,13 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
         if (len > RGN_MAP_LIMIT)
                 return -ENOMEM;
 
+        /* handle fixed mapping: prevent overlap with huge pages */
+        if (flags & MAP_FIXED) {
+                if (is_hugepage_only_range(mm, addr, len))
+                        return -EINVAL;
+                return addr;
+        }
+
 #ifdef CONFIG_HUGETLB_PAGE
         if (REGION_NUMBER(addr) == RGN_HPAGE)
                 addr = 0;
diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c
index 0c7e94edc20e..c7c90f4f4298 100644
--- a/arch/ia64/mm/hugetlbpage.c
+++ b/arch/ia64/mm/hugetlbpage.c
@@ -148,6 +148,14 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u
                 return -ENOMEM;
         if (len & ~HPAGE_MASK)
                 return -EINVAL;
+
+        /* Handle MAP_FIXED */
+        if (flags & MAP_FIXED) {
+                if (prepare_hugepage_range(addr, len, pgoff))
+                        return -EINVAL;
+                return addr;
+        }
+
         /* This code assumes that RGN_HPAGE != 0. */
         if ((REGION_NUMBER(addr) != RGN_HPAGE) || (addr & (HPAGE_SIZE - 1)))
                 addr = HPAGE_REGION_BASE;
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 5b70241741b4..cffb1e8325e8 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -121,7 +121,7 @@ lazy_mmu_prot_update (pte_t pte)
                 return;                         /* i-cache is already coherent with d-cache */
 
         if (PageCompound(page)) {
-                order = (unsigned long) (page[1].lru.prev);
+                order = compound_order(page);
                 flush_icache_range(addr, addr + (1UL << order << PAGE_SHIFT));
         }
         else
diff --git a/arch/ia64/sn/kernel/huberror.c b/arch/ia64/sn/kernel/huberror.c
index fcf7f93c4b61..2c3f9dfca78b 100644
--- a/arch/ia64/sn/kernel/huberror.c
+++ b/arch/ia64/sn/kernel/huberror.c
@@ -8,7 +8,6 @@
 
 #include <linux/types.h>
 #include <linux/interrupt.h>
-#include <linux/pci.h>
 #include <asm/delay.h>
 #include <asm/sn/sn_sal.h>
 #include "ioerror.h"
diff --git a/arch/ia64/sn/kernel/msi_sn.c b/arch/ia64/sn/kernel/msi_sn.c
index 49873aa4a37d..83f190ffe350 100644
--- a/arch/ia64/sn/kernel/msi_sn.c
+++ b/arch/ia64/sn/kernel/msi_sn.c
@@ -87,7 +87,6 @@ int sn_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *entry)
         if (irq < 0)
                 return irq;
 
-        set_irq_msi(irq, entry);
         /*
          * Set up the vector plumbing.  Let the prom (via sn_intr_alloc)
          * decide which cpu to direct this msi at by default.
@@ -144,10 +143,11 @@ int sn_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *entry)
          */
         msg.data = 0x100 + irq;
 
+        set_irq_msi(irq, entry);
         write_msi_msg(irq, &msg);
         set_irq_chip_and_handler(irq, &sn_msi_chip, handle_edge_irq);
 
-        return irq;
+        return 0;
 }
 
 #ifdef CONFIG_SMP
diff --git a/arch/ia64/sn/kernel/xpnet.c b/arch/ia64/sn/kernel/xpnet.c
index 5419acb89a8c..88fad85ceeff 100644
--- a/arch/ia64/sn/kernel/xpnet.c
+++ b/arch/ia64/sn/kernel/xpnet.c
@@ -24,7 +24,6 @@
 
 #include <linux/module.h>
 #include <linux/kernel.h>
-#include <linux/pci.h>
 #include <linux/init.h>
 #include <linux/ioport.h>
 #include <linux/netdevice.h>