Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile

* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  arch/tile: use new generic {enable,disable}_percpu_irq() routines
  drivers/net/ethernet/tile: use skb_frag_page() API
  asm-generic/unistd.h: support new process_vm_{readv,write} syscalls
  arch/tile: fix double-free bug in homecache_free_pages()
  arch/tile: add a few #includes and an EXPORT to catch up with kernel changes.

7 files changed, 20 insertions, 21 deletions

diff --git a/arch/tile/include/asm/irq.h b/arch/tile/include/asm/irq.h
index 94e9a511de84..f80f8ceabc67 100644
--- a/arch/tile/include/asm/irq.h
+++ b/arch/tile/include/asm/irq.h
@@ -74,16 +74,6 @@ enum {
  */
 void tile_irq_activate(unsigned int irq, int tile_irq_type);
 
-/*
- * For onboard, non-PCI (e.g. TILE_IRQ_PERCPU) devices, drivers know
- * how to use enable/disable_percpu_irq() to manage interrupts on each
- * core.  We can't use the generic enable/disable_irq() because they
- * use a single reference count per irq, rather than per cpu per irq.
- */
-void enable_percpu_irq(unsigned int irq);
-void disable_percpu_irq(unsigned int irq);
-
-
 void setup_irq_regs(void);
 
 #endif /* _ASM_TILE_IRQ_H */
diff --git a/arch/tile/kernel/irq.c b/arch/tile/kernel/irq.c
index aa0134db2dd6..02e628065012 100644
--- a/arch/tile/kernel/irq.c
+++ b/arch/tile/kernel/irq.c
@@ -152,14 +152,13 @@ void tile_dev_intr(struct pt_regs *regs, int intnum)
  * Remove an irq from the disabled mask.  If we're in an interrupt
  * context, defer enabling the HW interrupt until we leave.
  */
-void enable_percpu_irq(unsigned int irq)
+static void tile_irq_chip_enable(struct irq_data *d)
 {
-	get_cpu_var(irq_disable_mask) &= ~(1UL << irq);
+	get_cpu_var(irq_disable_mask) &= ~(1UL << d->irq);
 	if (__get_cpu_var(irq_depth) == 0)
-		unmask_irqs(1UL << irq);
+		unmask_irqs(1UL << d->irq);
 	put_cpu_var(irq_disable_mask);
 }
-EXPORT_SYMBOL(enable_percpu_irq);
 
 /*
  * Add an irq to the disabled mask.  We disable the HW interrupt
@@ -167,13 +166,12 @@ EXPORT_SYMBOL(enable_percpu_irq);
  * in an interrupt context, the return path is careful to avoid
  * unmasking a newly disabled interrupt.
  */
-void disable_percpu_irq(unsigned int irq)
+static void tile_irq_chip_disable(struct irq_data *d)
 {
-	get_cpu_var(irq_disable_mask) |= (1UL << irq);
-	mask_irqs(1UL << irq);
+	get_cpu_var(irq_disable_mask) |= (1UL << d->irq);
+	mask_irqs(1UL << d->irq);
 	put_cpu_var(irq_disable_mask);
 }
-EXPORT_SYMBOL(disable_percpu_irq);
 
 /* Mask an interrupt. */
 static void tile_irq_chip_mask(struct irq_data *d)
@@ -209,6 +207,8 @@ static void tile_irq_chip_eoi(struct irq_data *d)
 
 static struct irq_chip tile_irq_chip = {
 	.name = "tile_irq_chip",
+	.irq_enable = tile_irq_chip_enable,
+	.irq_disable = tile_irq_chip_disable,
 	.irq_ack = tile_irq_chip_ack,
 	.irq_eoi = tile_irq_chip_eoi,
 	.irq_mask = tile_irq_chip_mask,
diff --git a/arch/tile/kernel/pci-dma.c b/arch/tile/kernel/pci-dma.c
index 658f2ce426a4..b3ed19f8779c 100644
--- a/arch/tile/kernel/pci-dma.c
+++ b/arch/tile/kernel/pci-dma.c
@@ -15,6 +15,7 @@
 #include <linux/mm.h>
 #include <linux/dma-mapping.h>
 #include <linux/vmalloc.h>
+#include <linux/export.h>
 #include <asm/tlbflush.h>
 #include <asm/homecache.h>
 
diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c
index 2a8014cb1ff5..9d610d3fb11e 100644
--- a/arch/tile/kernel/pci.c
+++ b/arch/tile/kernel/pci.c
@@ -24,6 +24,7 @@
 #include <linux/irq.h>
 #include <linux/io.h>
 #include <linux/uaccess.h>
+#include <linux/export.h>
 
 #include <asm/processor.h>
 #include <asm/sections.h>
diff --git a/arch/tile/kernel/sysfs.c b/arch/tile/kernel/sysfs.c
index b671a86f4515..602908268093 100644
--- a/arch/tile/kernel/sysfs.c
+++ b/arch/tile/kernel/sysfs.c
@@ -18,6 +18,7 @@
 #include <linux/cpu.h>
 #include <linux/slab.h>
 #include <linux/smp.h>
+#include <linux/stat.h>
 #include <hv/hypervisor.h>
 
 /* Return a string queried from the hypervisor, truncated to page size. */
diff --git a/arch/tile/lib/exports.c b/arch/tile/lib/exports.c
index a87d2a859ba9..2a81d32de0da 100644
--- a/arch/tile/lib/exports.c
+++ b/arch/tile/lib/exports.c
@@ -39,6 +39,9 @@ EXPORT_SYMBOL(finv_user_asm);
 EXPORT_SYMBOL(current_text_addr);
 EXPORT_SYMBOL(dump_stack);
 
+/* arch/tile/kernel/head.S */
+EXPORT_SYMBOL(empty_zero_page);
+
 /* arch/tile/lib/, various memcpy files */
 EXPORT_SYMBOL(memcpy);
 EXPORT_SYMBOL(__copy_to_user_inatomic);
diff --git a/arch/tile/mm/homecache.c b/arch/tile/mm/homecache.c
index cbe6f4f9eca3..1cc6ae477c98 100644
--- a/arch/tile/mm/homecache.c
+++ b/arch/tile/mm/homecache.c
@@ -449,9 +449,12 @@ void homecache_free_pages(unsigned long addr, unsigned int order)
 	VM_BUG_ON(!virt_addr_valid((void *)addr));
 	page = virt_to_page((void *)addr);
 	if (put_page_testzero(page)) {
-		int pages = (1 << order);
 		homecache_change_page_home(page, order, initial_page_home());
-		while (pages--)
-			__free_page(page++);
+		if (order == 0) {
+			free_hot_cold_page(page, 0);
+		} else {
+			init_page_count(page);
+			__free_pages(page, order);
+		}
 	}
 }