7 files changed, 5 insertions, 91 deletions

diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
index 4eefdca9832b..53147ad85b96 100644
--- a/arch/x86/ia32/ia32entry.S
+++ b/arch/x86/ia32/ia32entry.S
@@ -696,7 +696,7 @@ ia32_sys_call_table:
         .quad quiet_ni_syscall          /* streams2 */
         .quad stub32_vfork            /* 190 */
         .quad compat_sys_getrlimit
-        .quad sys32_mmap2
+        .quad sys_mmap_pgoff
         .quad sys32_truncate64
         .quad sys32_ftruncate64
         .quad sys32_stat64              /* 195 */
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index df82c0e48ded..422572c77923 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -155,9 +155,6 @@ struct mmap_arg_struct {
 asmlinkage long sys32_mmap(struct mmap_arg_struct __user *arg)
 {
         struct mmap_arg_struct a;
-        struct file *file = NULL;
-        unsigned long retval;
-        struct mm_struct *mm ;
 
         if (copy_from_user(&a, arg, sizeof(a)))
                 return -EFAULT;
@@ -165,22 +162,8 @@ asmlinkage long sys32_mmap(struct mmap_arg_struct __user *arg)
         if (a.offset & ~PAGE_MASK)
                 return -EINVAL;
 
-        if (!(a.flags & MAP_ANONYMOUS)) {
-                file = fget(a.fd);
-                if (!file)
-                        return -EBADF;
-        }
-
-        mm = current->mm;
-        down_write(&mm->mmap_sem);
-        retval = do_mmap_pgoff(file, a.addr, a.len, a.prot, a.flags,
+        return sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd,
                                a.offset>>PAGE_SHIFT);
-        if (file)
-                fput(file);
-
-        up_write(&mm->mmap_sem);
-
-        return retval;
 }
 
 asmlinkage long sys32_mprotect(unsigned long start, size_t len,
@@ -483,30 +466,6 @@ asmlinkage long sys32_sendfile(int out_fd, int in_fd,
         return ret;
 }
 
-asmlinkage long sys32_mmap2(unsigned long addr, unsigned long len,
-                            unsigned long prot, unsigned long flags,
-                            unsigned long fd, unsigned long pgoff)
-{
-        struct mm_struct *mm = current->mm;
-        unsigned long error;
-        struct file *file = NULL;
-
-        flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-        if (!(flags & MAP_ANONYMOUS)) {
-                file = fget(fd);
-                if (!file)
-                        return -EBADF;
-        }
-
-        down_write(&mm->mmap_sem);
-        error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
-        up_write(&mm->mmap_sem);
-
-        if (file)
-                fput(file);
-        return error;
-}
-
 asmlinkage long sys32_olduname(struct oldold_utsname __user *name)
 {
         char *arch = "x86_64";
diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h
index 9af9decb38c3..4a5a089e1c62 100644
--- a/arch/x86/include/asm/sys_ia32.h
+++ b/arch/x86/include/asm/sys_ia32.h
@@ -57,9 +57,6 @@ asmlinkage long sys32_pwrite(unsigned int, char __user *, u32, u32, u32);
 asmlinkage long sys32_personality(unsigned long);
 asmlinkage long sys32_sendfile(int, int, compat_off_t __user *, s32);
 
-asmlinkage long sys32_mmap2(unsigned long, unsigned long, unsigned long,
-                            unsigned long, unsigned long, unsigned long);
-
 struct oldold_utsname;
 struct old_utsname;
 asmlinkage long sys32_olduname(struct oldold_utsname __user *);
diff --git a/arch/x86/include/asm/syscalls.h b/arch/x86/include/asm/syscalls.h
index 372b76edd63f..1bb6e395881c 100644
--- a/arch/x86/include/asm/syscalls.h
+++ b/arch/x86/include/asm/syscalls.h
@@ -55,8 +55,6 @@ struct sel_arg_struct;
 struct oldold_utsname;
 struct old_utsname;
 
-asmlinkage long sys_mmap2(unsigned long, unsigned long, unsigned long,
-                          unsigned long, unsigned long, unsigned long);
 asmlinkage int old_mmap(struct mmap_arg_struct __user *);
 asmlinkage int old_select(struct sel_arg_struct __user *);
 asmlinkage int sys_ipc(uint, int, int, int, void __user *, long);
diff --git a/arch/x86/kernel/sys_i386_32.c b/arch/x86/kernel/sys_i386_32.c
index 1884a8d12bfa..dee1ff7cba58 100644
--- a/arch/x86/kernel/sys_i386_32.c
+++ b/arch/x86/kernel/sys_i386_32.c
@@ -24,31 +24,6 @@
 
 #include <asm/syscalls.h>
 
-asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
-                          unsigned long prot, unsigned long flags,
-                          unsigned long fd, unsigned long pgoff)
-{
-        int error = -EBADF;
-        struct file *file = NULL;
-        struct mm_struct *mm = current->mm;
-
-        flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-        if (!(flags & MAP_ANONYMOUS)) {
-                file = fget(fd);
-                if (!file)
-                        goto out;
-        }
-
-        down_write(&mm->mmap_sem);
-        error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
-        up_write(&mm->mmap_sem);
-
-        if (file)
-                fput(file);
-out:
-        return error;
-}
-
 /*
  * Perform the select(nd, in, out, ex, tv) and mmap() system
  * calls. Linux/i386 didn't use to be able to handle more than
@@ -77,7 +52,7 @@ asmlinkage int old_mmap(struct mmap_arg_struct __user *arg)
         if (a.offset & ~PAGE_MASK)
                 goto out;
 
-        err = sys_mmap2(a.addr, a.len, a.prot, a.flags,
+        err = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags,
                         a.fd, a.offset >> PAGE_SHIFT);
 out:
         return err;
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index 45e00eb09c3a..8aa2057efd12 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -23,26 +23,11 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
                 unsigned long, fd, unsigned long, off)
 {
         long error;
-        struct file *file;
-
         error = -EINVAL;
         if (off & ~PAGE_MASK)
                 goto out;
 
-        error = -EBADF;
-        file = NULL;
-        flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-        if (!(flags & MAP_ANONYMOUS)) {
-                file = fget(fd);
-                if (!file)
-                        goto out;
-        }
-        down_write(&current->mm->mmap_sem);
-        error = do_mmap_pgoff(file, addr, len, prot, flags, off >> PAGE_SHIFT);
-        up_write(&current->mm->mmap_sem);
-
-        if (file)
-                fput(file);
+        error = sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
 out:
         return error;
 }
diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S
index 70c2125d55b9..15228b5d3eb7 100644
--- a/arch/x86/kernel/syscall_table_32.S
+++ b/arch/x86/kernel/syscall_table_32.S
@@ -191,7 +191,7 @@ ENTRY(sys_call_table)
         .long sys_ni_syscall    /* reserved for streams2 */
         .long ptregs_vfork      /* 190 */
         .long sys_getrlimit
-        .long sys_mmap2
+        .long sys_mmap_pgoff
         .long sys_truncate64
         .long sys_ftruncate64
         .long sys_stat64        /* 195 */