Merge branch 'for-3.0' into for-3.1

8 files changed, 10 insertions, 99 deletions

diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 7c275f5d0df..5d43c1f8ada 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -20,12 +20,6 @@ config XTENSA
 config RWSEM_XCHGADD_ALGORITHM
 	def_bool y
 
-config GENERIC_FIND_NEXT_BIT
-	def_bool y
-
-config GENERIC_FIND_BIT_LE
-	def_bool y
-
 config GENERIC_HWEIGHT
 	def_bool y
 
diff --git a/arch/xtensa/configs/s6105_defconfig b/arch/xtensa/configs/s6105_defconfig
index 42b7feba71b..4891abbf16b 100644
--- a/arch/xtensa/configs/s6105_defconfig
+++ b/arch/xtensa/configs/s6105_defconfig
@@ -23,7 +23,6 @@ CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
 #
 CONFIG_EXPERIMENTAL=y
 CONFIG_BROKEN_ON_SMP=y
-CONFIG_LOCK_KERNEL=y
 CONFIG_INIT_ENV_ARG_LIMIT=32
 CONFIG_LOCALVERSION=""
 CONFIG_LOCALVERSION_AUTO=y
diff --git a/arch/xtensa/include/asm/page.h b/arch/xtensa/include/asm/page.h
index 161bb89e98c..7a5591a71f8 100644
--- a/arch/xtensa/include/asm/page.h
+++ b/arch/xtensa/include/asm/page.h
@@ -171,10 +171,6 @@ extern void copy_user_page(void*, void*, unsigned long, struct page*);
 #define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
 #define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
 
-#ifdef CONFIG_MMU
-#define WANT_PAGE_VIRTUAL
-#endif
-
 #endif /* __ASSEMBLY__ */
 
 #define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
diff --git a/arch/xtensa/include/asm/unistd.h b/arch/xtensa/include/asm/unistd.h
index 528042c2951..a6f934f37f1 100644
--- a/arch/xtensa/include/asm/unistd.h
+++ b/arch/xtensa/include/asm/unistd.h
@@ -683,8 +683,10 @@ __SYSCALL(305, sys_ni_syscall, 0)
 __SYSCALL(306, sys_eventfd, 1)
 #define __NR_recvmmsg				307
 __SYSCALL(307, sys_recvmmsg, 5)
+#define __NR_setns				308
+__SYSCALL(308, sys_setns, 2)
 
-#define __NR_syscall_count			308
+#define __NR_syscall_count			309
 
 /*
  * sysxtensa syscall handler
diff --git a/arch/xtensa/kernel/irq.c b/arch/xtensa/kernel/irq.c
index d77089df412..4340ee076bd 100644
--- a/arch/xtensa/kernel/irq.c
+++ b/arch/xtensa/kernel/irq.c
@@ -64,47 +64,41 @@ asmlinkage void do_IRQ(int irq, struct pt_regs *regs)
 
 int arch_show_interrupts(struct seq_file *p, int prec)
 {
-	int j;
-
-	seq_printf(p, "%*s: ", prec, "NMI");
-	for_each_online_cpu(j)
-		seq_printf(p, "%10u ", nmi_count(j));
-	seq_putc(p, '\n');
 	seq_printf(p, "%*s: ", prec, "ERR");
 	seq_printf(p, "%10u\n", atomic_read(&irq_err_count));
 	return 0;
 }
 
-static void xtensa_irq_mask(struct irq_chip *d)
+static void xtensa_irq_mask(struct irq_data *d)
 {
 	cached_irq_mask &= ~(1 << d->irq);
 	set_sr (cached_irq_mask, INTENABLE);
 }
 
-static void xtensa_irq_unmask(struct irq_chip *d)
+static void xtensa_irq_unmask(struct irq_data *d)
 {
 	cached_irq_mask |= 1 << d->irq;
 	set_sr (cached_irq_mask, INTENABLE);
 }
 
-static void xtensa_irq_enable(struct irq_chip *d)
+static void xtensa_irq_enable(struct irq_data *d)
 {
 	variant_irq_enable(d->irq);
 	xtensa_irq_unmask(d->irq);
 }
 
-static void xtensa_irq_disable(struct irq_chip *d)
+static void xtensa_irq_disable(struct irq_data *d)
 {
 	xtensa_irq_mask(d->irq);
 	variant_irq_disable(d->irq);
 }
 
-static void xtensa_irq_ack(struct irq_chip *d)
+static void xtensa_irq_ack(struct irq_data *d)
 {
 	set_sr(1 << d->irq, INTCLEAR);
 }
 
-static int xtensa_irq_retrigger(struct irq_chip *d)
+static int xtensa_irq_retrigger(struct irq_data *d)
 {
 	set_sr (1 << d->irq, INTSET);
 	return 1;
diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S
index a2820065927..88ecea3facb 100644
--- a/arch/xtensa/kernel/vmlinux.lds.S
+++ b/arch/xtensa/kernel/vmlinux.lds.S
@@ -155,7 +155,7 @@ SECTIONS
     INIT_RAM_FS
   }
 
-  PERCPU(XCHAL_ICACHE_LINESIZE, PAGE_SIZE)
+  PERCPU_SECTION(XCHAL_ICACHE_LINESIZE)
 
   /* We need this dummy segment here */
 
diff --git a/arch/xtensa/mm/mmu.c b/arch/xtensa/mm/mmu.c
index 4bb91a970f1..ca81654f3ec 100644
--- a/arch/xtensa/mm/mmu.c
+++ b/arch/xtensa/mm/mmu.c
@@ -14,8 +14,6 @@
 #include <asm/mmu_context.h>
 #include <asm/page.h>
 
-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
 void __init paging_init(void)
 {
 	memset(swapper_pg_dir, 0, PAGE_SIZE);
diff --git a/arch/xtensa/mm/pgtable.c b/arch/xtensa/mm/pgtable.c
deleted file mode 100644
index 69799273820..00000000000
--- a/arch/xtensa/mm/pgtable.c
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * arch/xtensa/mm/pgtable.c
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2001 - 2005 Tensilica Inc.
- *
- * Chris Zankel <chris@zankel.net>
- */
-
-#if (DCACHE_SIZE > PAGE_SIZE)
-
-pte_t* pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
-{
-	pte_t *pte = NULL, *p;
-	int color = ADDR_COLOR(address);
-	int i;
-
-	p = (pte_t*) __get_free_pages(GFP_KERNEL|__GFP_REPEAT, COLOR_ORDER);
-
-	if (likely(p)) {
-		split_page(virt_to_page(p), COLOR_ORDER);
-
-		for (i = 0; i < COLOR_SIZE; i++) {
-			if (ADDR_COLOR(p) == color)
-				pte = p;
-			else
-				free_page(p);
-			p += PTRS_PER_PTE;
-		}
-		clear_page(pte);
-	}
-	return pte;
-}
-
-#ifdef PROFILING
-
-int mask;
-int hit;
-int flush;
-
-#endif
-
-struct page* pte_alloc_one(struct mm_struct *mm, unsigned long address)
-{
-	struct page *page = NULL, *p;
-	int color = ADDR_COLOR(address);
-
-	p = alloc_pages(GFP_KERNEL | __GFP_REPEAT, PTE_ORDER);
-
-	if (likely(p)) {
-		split_page(p, COLOR_ORDER);
-
-		for (i = 0; i < PAGE_ORDER; i++) {
-			if (PADDR_COLOR(page_address(p)) == color)
-				page = p;
-			else
-				__free_page(p);
-			p++;
-		}
-		clear_highpage(page);
-	}
-
-	return page;
-}
-
-#endif
-
-
-