fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / arch / ia64 / kernel / sys_ia64.c

diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
index eddde60..9ef62a3 100644 (file)
--- a/arch/ia64/kernel/sys_ia64.c
+++ b/arch/ia64/kernel/sys_ia64.c
@@ -2,10 +2,9 @@
  * This file contains various system calls that have different calling
  * conventions on different platforms.
  *
- * Copyright (C) 1999-2000, 2002-2003 Hewlett-Packard Co
+ * Copyright (C) 1999-2000, 2002-2003, 2005 Hewlett-Packard Co
  *     David Mosberger-Tang <davidm@hpl.hp.com>
  */
-#include <linux/config.h>
 #include <linux/errno.h>
 #include <linux/fs.h>
 #include <linux/mm.h>
@@ -35,7 +34,7 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
                return -ENOMEM;
 
 #ifdef CONFIG_HUGETLB_PAGE
-       if (REGION_NUMBER(addr) == REGION_HPAGE)
+       if (REGION_NUMBER(addr) == RGN_HPAGE)
                addr = 0;
 #endif
        if (!addr)
@@ -92,20 +91,6 @@ sys_getpagesize (void)
        return PAGE_SIZE;
 }
 
-asmlinkage unsigned long
-ia64_shmat (int shmid, void *shmaddr, int shmflg)
-{
-       unsigned long raddr;
-       int retval;
-
-       retval = do_shmat(shmid, shmaddr, shmflg, &raddr);
-       if (retval < 0)
-               return retval;
-
-       force_successful_syscall_return();
-       return raddr;
-}
-
 asmlinkage unsigned long
 ia64_brk (unsigned long brk)
 {
@@ -138,7 +123,7 @@ ia64_brk (unsigned long brk)
                goto out;
 
        /* Check against rlimit.. */
-       rlim = current->rlim[RLIMIT_DATA].rlim_cur;
+       rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur;
        if (rlim < RLIM_INFINITY && brk - mm->start_data > rlim)
                goto out;
 
@@ -163,10 +148,9 @@ out:
  * and r9) as this is faster than doing a copy_to_user().
  */
 asmlinkage long
-sys_pipe (long arg0, long arg1, long arg2, long arg3,
-         long arg4, long arg5, long arg6, long arg7, long stack)
+sys_pipe (void)
 {
-       struct pt_regs *regs = (struct pt_regs *) &stack;
+       struct pt_regs *regs = task_pt_regs(current);
        int fd[2];
        int retval;
 
@@ -179,11 +163,26 @@ sys_pipe (long arg0, long arg1, long arg2, long arg3,
        return retval;
 }
 
+int ia64_mmap_check(unsigned long addr, unsigned long len,
+               unsigned long flags)
+{
+       unsigned long roff;
+
+       /*
+        * Don't permit mappings into unmapped space, the virtual page table
+        * of a region, or across a region boundary.  Note: RGN_MAP_LIMIT is
+        * equal to 2^n-PAGE_SIZE (for some integer n <= 61) and len > 0.
+        */
+       roff = REGION_OFFSET(addr);
+       if ((len > RGN_MAP_LIMIT) || (roff > (RGN_MAP_LIMIT - len)))
+               return -EINVAL;
+       return 0;
+}
+
 static inline unsigned long
 do_mmap2 (unsigned long addr, unsigned long len, int prot, int flags, int fd, unsigned long pgoff)
 {
-       unsigned long roff;
-       struct file *file = 0;
+       struct file *file = NULL;
 
        flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
        if (!(flags & MAP_ANONYMOUS)) {
@@ -197,13 +196,6 @@ do_mmap2 (unsigned long addr, unsigned long len, int prot, int flags, int fd, un
                }
        }
 
-       /*
-        * A zero mmap always succeeds in Linux, independent of whether or not the
-        * remaining arguments are valid.
-        */
-       if (len == 0)
-               goto out;
-
        /* Careful about overflows.. */
        len = PAGE_ALIGN(len);
        if (!len || len > TASK_SIZE) {
@@ -211,17 +203,6 @@ do_mmap2 (unsigned long addr, unsigned long len, int prot, int flags, int fd, un
                goto out;
        }
 
-       /*
-        * Don't permit mappings into unmapped space, the virtual page table of a region,
-        * or across a region boundary.  Note: RGN_MAP_LIMIT is equal to 2^n-PAGE_SIZE
-        * (for some integer n <= 61) and len > 0.
-        */
-       roff = REGION_OFFSET(addr);
-       if ((len > RGN_MAP_LIMIT) || (roff > (RGN_MAP_LIMIT - len))) {
-               addr = -EINVAL;
-               goto out;
-       }
-
        down_write(&current->mm->mmap_sem);
        addr = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
        up_write(&current->mm->mmap_sem);