fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / arch / x86_64 / kernel / sys_x86_64.c

diff --git a/arch/x86_64/kernel/sys_x86_64.c b/arch/x86_64/kernel/sys_x86_64.c
index 752d840..76bf7c2 100644 (file)
--- a/arch/x86_64/kernel/sys_x86_64.c
+++ b/arch/x86_64/kernel/sys_x86_64.c
@@ -18,14 +18,13 @@
 #include <linux/personality.h>
 
 #include <asm/uaccess.h>
-#include <asm/ipc.h>
 #include <asm/ia32.h>
 
 /*
  * sys_pipe() is the normal C calling standard for creating
  * a pipe. It's not the way Unix traditionally does this, though.
  */
-asmlinkage long sys_pipe(int *fildes)
+asmlinkage long sys_pipe(int __user *fildes)
 {
        int fd[2];
        int error;
@@ -38,7 +37,7 @@ asmlinkage long sys_pipe(int *fildes)
        return error;
 }
 
-long sys_mmap(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags,
+asmlinkage long sys_mmap(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags,
        unsigned long fd, unsigned long off)
 {
        long error;
@@ -69,13 +68,7 @@ out:
 static void find_start_end(unsigned long flags, unsigned long *begin,
                           unsigned long *end)
 {
-#ifdef CONFIG_IA32_EMULATION
-       if (test_thread_flag(TIF_IA32)) { 
-               *begin = TASK_UNMAPPED_32;
-               *end = IA32_PAGE_OFFSET; 
-       } else 
-#endif
-       if (flags & MAP_32BIT) { 
+       if (!test_thread_flag(TIF_IA32) && (flags & MAP_32BIT)) {
                /* This is usually used needed to map code in small
                   model, so it needs to be in the first 31bit. Limit
                   it to that.  This means we need to move the
@@ -85,10 +78,10 @@ static void find_start_end(unsigned long flags, unsigned long *begin,
                   of playground for now. -AK */ 
                *begin = 0x40000000; 
                *end = 0x80000000;              
-       } else { 
-               *begin = TASK_UNMAPPED_64; 
+       } else {
+               *begin = TASK_UNMAPPED_BASE;
                *end = TASK_SIZE; 
-               }
+       }
 } 
 
 unsigned long
@@ -112,6 +105,11 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
                    (!vma || addr + len <= vma->vm_start))
                        return addr;
        }
+       if (((flags & MAP_32BIT) || test_thread_flag(TIF_IA32))
+           && len <= mm->cached_hole_size) {
+               mm->cached_hole_size = 0;
+               mm->free_area_cache = begin;
+       }
        addr = mm->free_area_cache;
        if (addr < begin) 
                addr = begin; 
@@ -127,6 +125,7 @@ full_search:
                         */
                        if (start_addr != begin) {
                                start_addr = addr = begin;
+                               mm->cached_hole_size = 0;
                                goto full_search;
                        }
                        return -ENOMEM;
@@ -138,37 +137,20 @@ full_search:
                        mm->free_area_cache = addr + len;
                        return addr;
                }
+               if (addr + mm->cached_hole_size < vma->vm_start)
+                       mm->cached_hole_size = vma->vm_start - addr;
+
                addr = vma->vm_end;
        }
 }
 
-asmlinkage long sys_uname(struct new_utsname * name)
+asmlinkage long sys_uname(struct new_utsname __user * name)
 {
        int err;
        down_read(&uts_sem);
-       err = copy_to_user(name, vx_new_utsname(), sizeof (*name));
+       err = copy_to_user(name, utsname(), sizeof (*name));
        up_read(&uts_sem);
        if (personality(current->personality) == PER_LINUX32) 
                err |= copy_to_user(&name->machine, "i686", 5);                 
        return err ? -EFAULT : 0;
 }
-
-asmlinkage long wrap_sys_shmat(int shmid, char *shmaddr, int shmflg)
-{
-       unsigned long raddr;
-       return do_shmat(shmid,shmaddr,shmflg,&raddr) ?: (long)raddr;
-}
-
-asmlinkage long sys_time64(long * tloc)
-{
-       struct timeval now; 
-       int i; 
-
-       do_gettimeofday(&now);
-       i = now.tv_sec;
-       if (tloc) {
-               if (put_user(i,tloc))
-                       i = -EFAULT;
-       }
-       return i;
-}