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.

diff --git a/arch/tile/include/asm/irq.h b/arch/tile/include/asm/irq.h
index 94e9a51..f80f8ce 100644 (file)
--- 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 aa0134d..02e6280 100644 (file)
--- 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 658f2ce..b3ed19f 100644 (file)
--- 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 2a8014c..9d610d3 100644 (file)
--- 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 b671a86..6029082 100644 (file)
--- 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 a87d2a8..2a81d32 100644 (file)
--- 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 cbe6f4f..1cc6ae4 100644 (file)
--- 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);
+               }
        }
 }

diff --git a/drivers/net/ethernet/tile/tilepro.c b/drivers/net/ethernet/tile/tilepro.c
index 10826d8..1187a11 100644 (file)
--- a/drivers/net/ethernet/tile/tilepro.c
+++ b/drivers/net/ethernet/tile/tilepro.c
@@ -926,7 +926,7 @@ static int tile_net_poll(struct napi_struct *napi, int budget)
                goto done;
 
        /* Re-enable the ingress interrupt. */
-       enable_percpu_irq(priv->intr_id);
+       enable_percpu_irq(priv->intr_id, 0);
 
        /* HACK: Avoid the "rotting packet" problem (see above). */
        if (qup->__packet_receive_read !=
@@ -1296,7 +1296,7 @@ static void tile_net_open_enable(void *dev_ptr)
        info->napi_enabled = true;
 
        /* Enable the ingress interrupt. */
-       enable_percpu_irq(priv->intr_id);
+       enable_percpu_irq(priv->intr_id, 0);
 }
 
 
@@ -1697,7 +1697,7 @@ static unsigned int tile_net_tx_frags(lepp_frag_t *frags,
        for (i = 0; i < sh->nr_frags; i++) {
 
                skb_frag_t *f = &sh->frags[i];
-               unsigned long pfn = page_to_pfn(f->page);
+               unsigned long pfn = page_to_pfn(skb_frag_page(f));
 
                /* FIXME: Compute "hash_for_home" properly. */
                /* ISSUE: The hypervisor checks CHIP_HAS_REV1_DMA_PACKETS(). */
@@ -1706,7 +1706,7 @@ static unsigned int tile_net_tx_frags(lepp_frag_t *frags,
                /* FIXME: Hmmm. */
                if (!hash_default) {
                        void *va = pfn_to_kaddr(pfn) + f->page_offset;
-                       BUG_ON(PageHighMem(f->page));
+                       BUG_ON(PageHighMem(skb_frag_page(f)));
                        finv_buffer_remote(va, f->size, 0);
                }
 

diff --git a/include/asm-generic/unistd.h b/include/asm-generic/unistd.h
index f4c38d8..2292d1a 100644 (file)
--- a/include/asm-generic/unistd.h
+++ b/include/asm-generic/unistd.h
@@ -685,9 +685,15 @@ __SYSCALL(__NR_syncfs, sys_syncfs)
 __SYSCALL(__NR_setns, sys_setns)
 #define __NR_sendmmsg 269
 __SC_COMP(__NR_sendmmsg, sys_sendmmsg, compat_sys_sendmmsg)
+#define __NR_process_vm_readv 270
+__SC_COMP(__NR_process_vm_readv, sys_process_vm_readv, \
+          compat_sys_process_vm_readv)
+#define __NR_process_vm_writev 271
+__SC_COMP(__NR_process_vm_writev, sys_process_vm_writev, \
+          compat_sys_process_vm_writev)
 
 #undef __NR_syscalls
-#define __NR_syscalls 270
+#define __NR_syscalls 272
 
 /*
  * All syscalls below here should go away really,

diff --git a/include/linux/compat.h b/include/linux/compat.h
index 154bf56..66ed067 100644 (file)
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -552,5 +552,14 @@ extern ssize_t compat_rw_copy_check_uvector(int type,
 
 extern void __user *compat_alloc_user_space(unsigned long len);
 
+asmlinkage ssize_t compat_sys_process_vm_readv(compat_pid_t pid,
+               const struct compat_iovec __user *lvec,
+               unsigned long liovcnt, const struct compat_iovec __user *rvec,
+               unsigned long riovcnt, unsigned long flags);
+asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid,
+               const struct compat_iovec __user *lvec,
+               unsigned long liovcnt, const struct compat_iovec __user *rvec,
+               unsigned long riovcnt, unsigned long flags);
+
 #endif /* CONFIG_COMPAT */
 #endif /* _LINUX_COMPAT_H */