Merge branch 'percpu-cpumask-x86-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'percpu-cpumask-x86-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (682 commits)
  percpu: fix spurious alignment WARN in legacy SMP percpu allocator
  percpu: generalize embedding first chunk setup helper
  percpu: more flexibility for @dyn_size of pcpu_setup_first_chunk()
  percpu: make x86 addr <-> pcpu ptr conversion macros generic
  linker script: define __per_cpu_load on all SMP capable archs
  x86: UV: remove uv_flush_tlb_others() WARN_ON
  percpu: finer grained locking to break deadlock and allow atomic free
  percpu: move fully free chunk reclamation into a work
  percpu: move chunk area map extension out of area allocation
  percpu: replace pcpu_realloc() with pcpu_mem_alloc() and pcpu_mem_free()
  x86, percpu: setup reserved percpu area for x86_64
  percpu, module: implement reserved allocation and use it for module percpu variables
  percpu: add an indirection ptr for chunk page map access
  x86: make embedding percpu allocator return excessive free space
  percpu: use negative for auto for pcpu_setup_first_chunk() arguments
  percpu: improve first chunk initial area map handling
  percpu: cosmetic renames in pcpu_setup_first_chunk()
  percpu: clean up percpu constants
  x86: un-__init fill_pud/pmd/pte
  x86: remove vestigial fix_ioremap prototypes
  ...

Manually merge conflicts in arch/ia64/kernel/irq_ia64.c

10 files changed, 34 insertions, 26 deletions

diff --git a/arch/ia64/include/asm/percpu.h b/arch/ia64/include/asm/percpu.h
index 77f30b664b4e..30cf46534dd2 100644
--- a/arch/ia64/include/asm/percpu.h
+++ b/arch/ia64/include/asm/percpu.h
@@ -27,12 +27,12 @@ extern void *per_cpu_init(void);
 
 #else /* ! SMP */
 
-#define PER_CPU_ATTRIBUTES      __attribute__((__section__(".data.percpu")))
-
 #define per_cpu_init()                          (__phys_per_cpu_start)
 
 #endif  /* SMP */
 
+#define PER_CPU_BASE_SECTION ".data.percpu"
+
 /*
  * Be extremely careful when taking the address of this variable!  Due to virtual
  * remapping, it is different from the canonical address returned by __get_cpu_var(var)!
diff --git a/arch/ia64/include/asm/topology.h b/arch/ia64/include/asm/topology.h
index 32f3af1641c5..3193f4417e16 100644
--- a/arch/ia64/include/asm/topology.h
+++ b/arch/ia64/include/asm/topology.h
@@ -84,7 +84,7 @@ void build_cpu_to_node_map(void);
         .child                  = NULL,                 \
         .groups                 = NULL,                 \
         .min_interval           = 8,                    \
-        .max_interval           = 8*(min(num_online_cpus(), 32)), \
+        .max_interval           = 8*(min(num_online_cpus(), 32U)), \
         .busy_factor            = 64,                   \
         .imbalance_pct          = 125,                  \
         .cache_nice_tries       = 2,                    \
diff --git a/arch/ia64/include/asm/uv/uv.h b/arch/ia64/include/asm/uv/uv.h
new file mode 100644
index 000000000000..61b5bdfd980e
--- /dev/null
+++ b/arch/ia64/include/asm/uv/uv.h
@@ -0,0 +1,13 @@
+#ifndef _ASM_IA64_UV_UV_H
+#define _ASM_IA64_UV_UV_H
+
+#include <asm/system.h>
+#include <asm/sn/simulator.h>
+
+static inline int is_uv_system(void)
+{
+        /* temporary support for running on hardware simulator */
+        return IS_MEDUSA() || ia64_platform_is("uv");
+}
+
+#endif  /* _ASM_IA64_UV_UV_H */
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index d541671caf4a..bdef2ce38c8b 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -199,6 +199,10 @@ char *__init __acpi_map_table(unsigned long phys_addr, unsigned long size)
         return __va(phys_addr);
 }
 
+void __init __acpi_unmap_table(char *map, unsigned long size)
+{
+}
+
 /* --------------------------------------------------------------------------
                             Boot-time Table Parsing
    -------------------------------------------------------------------------- */
diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index e13125058bed..166e0d839fa0 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -880,7 +880,7 @@ iosapic_unregister_intr (unsigned int gsi)
         if (iosapic_intr_info[irq].count == 0) {
 #ifdef CONFIG_SMP
                 /* Clear affinity */
-                cpus_setall(idesc->affinity);
+                cpumask_setall(idesc->affinity);
 #endif
                 /* Clear the interrupt information */
                 iosapic_intr_info[irq].dest = 0;
diff --git a/arch/ia64/kernel/irq.c b/arch/ia64/kernel/irq.c
index 4f596613bffd..7429752ef5ad 100644
--- a/arch/ia64/kernel/irq.c
+++ b/arch/ia64/kernel/irq.c
@@ -103,7 +103,7 @@ static char irq_redir [NR_IRQS]; // = { [0 ... NR_IRQS-1] = 1 };
 void set_irq_affinity_info (unsigned int irq, int hwid, int redir)
 {
         if (irq < NR_IRQS) {
-                cpumask_copy(&irq_desc[irq].affinity,
+                cpumask_copy(irq_desc[irq].affinity,
                              cpumask_of(cpu_logical_id(hwid)));
                 irq_redir[irq] = (char) (redir & 0xff);
         }
@@ -148,7 +148,7 @@ static void migrate_irqs(void)
                 if (desc->status == IRQ_PER_CPU)
                         continue;
 
-                if (cpumask_any_and(&irq_desc[irq].affinity, cpu_online_mask)
+                if (cpumask_any_and(irq_desc[irq].affinity, cpu_online_mask)
                     >= nr_cpu_ids) {
                         /*
                          * Save it for phase 2 processing
diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c
index 977a6ef13320..acc4d19ae62a 100644
--- a/arch/ia64/kernel/irq_ia64.c
+++ b/arch/ia64/kernel/irq_ia64.c
@@ -493,16 +493,15 @@ ia64_handle_irq (ia64_vector vector, struct pt_regs *regs)
         saved_tpr = ia64_getreg(_IA64_REG_CR_TPR);
         ia64_srlz_d();
         while (vector != IA64_SPURIOUS_INT_VECTOR) {
-                struct irq_desc *desc;
                 int irq = local_vector_to_irq(vector);
+                struct irq_desc *desc = irq_to_desc(irq);
 
-                desc = irq_desc + irq;
                 if (unlikely(IS_LOCAL_TLB_FLUSH(vector))) {
                         smp_local_flush_tlb();
                         kstat_incr_irqs_this_cpu(irq, desc);
-                } else if (unlikely(IS_RESCHEDULE(vector)))
+                } else if (unlikely(IS_RESCHEDULE(vector))) {
                         kstat_incr_irqs_this_cpu(irq, desc);
-                else {
+                } else {
                         ia64_setreg(_IA64_REG_CR_TPR, vector);
                         ia64_srlz_d();
 
@@ -553,16 +552,15 @@ void ia64_process_pending_intr(void)
           * Perform normal interrupt style processing
           */
         while (vector != IA64_SPURIOUS_INT_VECTOR) {
-                struct irq_desc *desc;
                 int irq = local_vector_to_irq(vector);
-                desc = irq_desc + irq;
+                struct irq_desc *desc = irq_to_desc(irq);
 
                 if (unlikely(IS_LOCAL_TLB_FLUSH(vector))) {
                         smp_local_flush_tlb();
                         kstat_incr_irqs_this_cpu(irq, desc);
-                } else if (unlikely(IS_RESCHEDULE(vector)))
+                } else if (unlikely(IS_RESCHEDULE(vector))) {
                         kstat_incr_irqs_this_cpu(irq, desc);
-                else {
+                } else {
                         struct pt_regs *old_regs = set_irq_regs(NULL);
 
                         ia64_setreg(_IA64_REG_CR_TPR, vector);
diff --git a/arch/ia64/kernel/msi_ia64.c b/arch/ia64/kernel/msi_ia64.c
index 368ee4e5266d..2b15e233f7fe 100644
--- a/arch/ia64/kernel/msi_ia64.c
+++ b/arch/ia64/kernel/msi_ia64.c
@@ -38,7 +38,7 @@ static void ia64_set_msi_irq_affinity(unsigned int irq,
         msg.data = data;
 
         write_msi_msg(irq, &msg);
-        irq_desc[irq].affinity = cpumask_of_cpu(cpu);
+        cpumask_copy(irq_desc[irq].affinity, cpumask_of(cpu));
 }
 #endif /* CONFIG_SMP */
 
@@ -150,7 +150,7 @@ static void dmar_msi_set_affinity(unsigned int irq, const struct cpumask *mask)
         msg.address_lo |= MSI_ADDR_DEST_ID_CPU(cpu_physical_id(cpu));
 
         dmar_msi_write(irq, &msg);
-        irq_desc[irq].affinity = *mask;
+        cpumask_copy(irq_desc[irq].affinity, mask);
 }
 #endif /* CONFIG_SMP */
 
diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
index 10a7d47e8510..3765efc5f963 100644
--- a/arch/ia64/kernel/vmlinux.lds.S
+++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -213,16 +213,9 @@ SECTIONS
         { *(.data.cacheline_aligned) }
 
   /* Per-cpu data: */
-  percpu : { } :percpu
   . = ALIGN(PERCPU_PAGE_SIZE);
-  __phys_per_cpu_start = .;
-  .data.percpu PERCPU_ADDR : AT(__phys_per_cpu_start - LOAD_OFFSET)
-        {
-                __per_cpu_start = .;
-                *(.data.percpu)
-                *(.data.percpu.shared_aligned)
-                __per_cpu_end = .;
-        }
+  PERCPU_VADDR(PERCPU_ADDR, :percpu)
+  __phys_per_cpu_start = __per_cpu_load;
   . = __phys_per_cpu_start + PERCPU_PAGE_SIZE;  /* ensure percpu data fits
                                                  * into percpu page size
                                                  */
diff --git a/arch/ia64/sn/kernel/msi_sn.c b/arch/ia64/sn/kernel/msi_sn.c
index ca553b0429ce..81e428943d73 100644
--- a/arch/ia64/sn/kernel/msi_sn.c
+++ b/arch/ia64/sn/kernel/msi_sn.c
@@ -205,7 +205,7 @@ static void sn_set_msi_irq_affinity(unsigned int irq,
         msg.address_lo = (u32)(bus_addr & 0x00000000ffffffff);
 
         write_msi_msg(irq, &msg);
-        irq_desc[irq].affinity = *cpu_mask;
+        cpumask_copy(irq_desc[irq].affinity, cpu_mask);
 }
 #endif /* CONFIG_SMP */