powerpc: Fix dma_map_sg() cache flushing on non coherent platforms

[safe/jmp/linux-2.6] / arch / powerpc / kernel / syscalls.c

diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c
index ad895c9..c04832c 100644 (file)
--- a/arch/powerpc/kernel/syscalls.c
+++ b/arch/powerpc/kernel/syscalls.c
@@ -23,8 +23,8 @@
 #include <linux/sched.h>
 #include <linux/syscalls.h>
 #include <linux/mm.h>
+#include <linux/fs.h>
 #include <linux/smp.h>
-#include <linux/smp_lock.h>
 #include <linux/sem.h>
 #include <linux/msg.h>
 #include <linux/shm.h>
@@ -38,8 +38,7 @@
 #include <linux/personality.h>
 
 #include <asm/uaccess.h>
-#include <asm/ipc.h>
-#include <asm/semaphore.h>
+#include <asm/syscalls.h>
 #include <asm/time.h>
 #include <asm/unistd.h>
 
@@ -137,23 +136,6 @@ int sys_ipc(uint call, int first, unsigned long second, long third,
        return ret;
 }
 
-/*
- * sys_pipe() is the normal C calling standard for creating
- * a pipe. It's not the way unix traditionally does this, though.
- */
-int sys_pipe(int __user *fildes)
-{
-       int fd[2];
-       int error;
-
-       error = do_pipe(fd);
-       if (!error) {
-               if (copy_to_user(fildes, fd, 2*sizeof(int)))
-                       error = -EFAULT;
-       }
-       return error;
-}
-
 static inline unsigned long do_mmap2(unsigned long addr, size_t len,
                        unsigned long prot, unsigned long flags,
                        unsigned long fd, unsigned long off, int shift)
@@ -161,6 +143,9 @@ static inline unsigned long do_mmap2(unsigned long addr, size_t len,
        struct file * file = NULL;
        unsigned long ret = -EINVAL;
 
+       if (!arch_validate_prot(prot))
+               goto out;
+
        if (shift) {
                if (off & ((1 << shift) - 1))
                        goto out;
@@ -259,7 +244,7 @@ long ppc_newuname(struct new_utsname __user * name)
        int err = 0;
 
        down_read(&uts_sem);
-       if (copy_to_user(name, &system_utsname, sizeof(*name)))
+       if (copy_to_user(name, utsname(), sizeof(*name)))
                err = -EFAULT;
        up_read(&uts_sem);
        if (!err)
@@ -272,7 +257,7 @@ int sys_uname(struct old_utsname __user *name)
        int err = 0;
        
        down_read(&uts_sem);
-       if (copy_to_user(name, &system_utsname, sizeof(*name)))
+       if (copy_to_user(name, utsname(), sizeof(*name)))
                err = -EFAULT;
        up_read(&uts_sem);
        if (!err)
@@ -288,19 +273,19 @@ int sys_olduname(struct oldold_utsname __user *name)
                return -EFAULT;
   
        down_read(&uts_sem);
-       error = __copy_to_user(&name->sysname, &system_utsname.sysname,
+       error = __copy_to_user(&name->sysname, &utsname()->sysname,
                               __OLD_UTS_LEN);
        error |= __put_user(0, name->sysname + __OLD_UTS_LEN);
-       error |= __copy_to_user(&name->nodename, &system_utsname.nodename,
+       error |= __copy_to_user(&name->nodename, &utsname()->nodename,
                                __OLD_UTS_LEN);
        error |= __put_user(0, name->nodename + __OLD_UTS_LEN);
-       error |= __copy_to_user(&name->release, &system_utsname.release,
+       error |= __copy_to_user(&name->release, &utsname()->release,
                                __OLD_UTS_LEN);
        error |= __put_user(0, name->release + __OLD_UTS_LEN);
-       error |= __copy_to_user(&name->version, &system_utsname.version,
+       error |= __copy_to_user(&name->version, &utsname()->version,
                                __OLD_UTS_LEN);
        error |= __put_user(0, name->version + __OLD_UTS_LEN);
-       error |= __copy_to_user(&name->machine, &system_utsname.machine,
+       error |= __copy_to_user(&name->machine, &utsname()->machine,
                                __OLD_UTS_LEN);
        error |= override_machine(name->machine);
        up_read(&uts_sem);