Merge 3.6-rc3 into tty-next

This picks up all of the different fixes in Linus's tree that we also need here.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

5 files changed, 71 insertions, 165 deletions

diff --git a/arch/alpha/kernel/alpha_ksyms.c b/arch/alpha/kernel/alpha_ksyms.c
index d96e742d4dc..15fa821d09c 100644
--- a/arch/alpha/kernel/alpha_ksyms.c
+++ b/arch/alpha/kernel/alpha_ksyms.c
@@ -52,7 +52,6 @@ EXPORT_SYMBOL(alpha_write_fp_reg_s);
 
 /* entry.S */
 EXPORT_SYMBOL(kernel_thread);
-EXPORT_SYMBOL(kernel_execve);
 
 /* Networking helper routines. */
 EXPORT_SYMBOL(csum_tcpudp_magic);
@@ -74,8 +73,6 @@ EXPORT_SYMBOL(alpha_fp_emul);
  */
 EXPORT_SYMBOL(__copy_user);
 EXPORT_SYMBOL(__do_clear_user);
-EXPORT_SYMBOL(__strncpy_from_user);
-EXPORT_SYMBOL(__strnlen_user);
 
 /* 
  * SMP-specific symbols.
diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S
index 6d159cee5f2..ec0da0567ab 100644
--- a/arch/alpha/kernel/entry.S
+++ b/arch/alpha/kernel/entry.S
@@ -663,58 +663,6 @@ kernel_thread:
         br      ret_to_kernel
 .end kernel_thread
 
-/*
- * kernel_execve(path, argv, envp)
- */
-        .align  4
-        .globl  kernel_execve
-        .ent    kernel_execve
-kernel_execve:
-        /* We can be called from a module.  */
-        ldgp    $gp, 0($27)
-        lda     $sp, -(32+SIZEOF_PT_REGS+8)($sp)
-        .frame  $sp, 32+SIZEOF_PT_REGS+8, $26, 0
-        stq     $26, 0($sp)
-        stq     $16, 8($sp)
-        stq     $17, 16($sp)
-        stq     $18, 24($sp)
-        .prologue 1
-
-        lda     $16, 32($sp)
-        lda     $17, 0
-        lda     $18, SIZEOF_PT_REGS
-        bsr     $26, memset             !samegp
-
-        /* Avoid the HAE being gratuitously wrong, which would cause us
-           to do the whole turn off interrupts thing and restore it.  */
-        ldq     $2, alpha_mv+HAE_CACHE
-        stq     $2, 152+32($sp)
-
-        ldq     $16, 8($sp)
-        ldq     $17, 16($sp)
-        ldq     $18, 24($sp)
-        lda     $19, 32($sp)
-        bsr     $26, do_execve          !samegp
-
-        ldq     $26, 0($sp)
-        bne     $0, 1f                  /* error! */
-
-        /* Move the temporary pt_regs struct from its current location
-           to the top of the kernel stack frame.  See copy_thread for
-           details for a normal process.  */
-        lda     $16, 0x4000 - SIZEOF_PT_REGS($8)
-        lda     $17, 32($sp)
-        lda     $18, SIZEOF_PT_REGS
-        bsr     $26, memmove            !samegp
-
-        /* Take that over as our new stack frame and visit userland!  */
-        lda     $sp, 0x4000 - SIZEOF_PT_REGS($8)
-        br      $31, ret_from_sys_call
-
-1:      lda     $sp, 32+SIZEOF_PT_REGS+8($sp)
-        ret
-.end kernel_execve
-
 
 /*
  * Special system calls.  Most of these are special in that they either
@@ -797,115 +745,6 @@ sys_rt_sigreturn:
 .end sys_rt_sigreturn
 
         .align  4
-        .globl  sys_sethae
-        .ent    sys_sethae
-sys_sethae:
-        .prologue 0
-        stq     $16, 152($sp)
-        ret
-.end sys_sethae
-
-        .align  4
-        .globl  osf_getpriority
-        .ent    osf_getpriority
-osf_getpriority:
-        lda     $sp, -16($sp)
-        stq     $26, 0($sp)
-        .prologue 0
-
-        jsr     $26, sys_getpriority
-
-        ldq     $26, 0($sp)
-        blt     $0, 1f
-
-        /* Return value is the unbiased priority, i.e. 20 - prio.
-           This does result in negative return values, so signal
-           no error by writing into the R0 slot.  */
-        lda     $1, 20
-        stq     $31, 16($sp)
-        subl    $1, $0, $0
-        unop
-
-1:      lda     $sp, 16($sp)
-        ret
-.end osf_getpriority
-
-        .align  4
-        .globl  sys_getxuid
-        .ent    sys_getxuid
-sys_getxuid:
-        .prologue 0
-        ldq     $2, TI_TASK($8)
-        ldq     $3, TASK_CRED($2)
-        ldl     $0, CRED_UID($3)
-        ldl     $1, CRED_EUID($3)
-        stq     $1, 80($sp)
-        ret
-.end sys_getxuid
-
-        .align  4
-        .globl  sys_getxgid
-        .ent    sys_getxgid
-sys_getxgid:
-        .prologue 0
-        ldq     $2, TI_TASK($8)
-        ldq     $3, TASK_CRED($2)
-        ldl     $0, CRED_GID($3)
-        ldl     $1, CRED_EGID($3)
-        stq     $1, 80($sp)
-        ret
-.end sys_getxgid
-
-        .align  4
-        .globl  sys_getxpid
-        .ent    sys_getxpid
-sys_getxpid:
-        .prologue 0
-        ldq     $2, TI_TASK($8)
-
-        /* See linux/kernel/timer.c sys_getppid for discussion
-           about this loop.  */
-        ldq     $3, TASK_GROUP_LEADER($2)
-        ldq     $4, TASK_REAL_PARENT($3)
-        ldl     $0, TASK_TGID($2)
-1:      ldl     $1, TASK_TGID($4)
-#ifdef CONFIG_SMP
-        mov     $4, $5
-        mb
-        ldq     $3, TASK_GROUP_LEADER($2)
-        ldq     $4, TASK_REAL_PARENT($3)
-        cmpeq   $4, $5, $5
-        beq     $5, 1b
-#endif
-        stq     $1, 80($sp)
-        ret
-.end sys_getxpid
-
-        .align  4
-        .globl  sys_alpha_pipe
-        .ent    sys_alpha_pipe
-sys_alpha_pipe:
-        lda     $sp, -16($sp)
-        stq     $26, 0($sp)
-        .prologue 0
-
-        mov     $31, $17
-        lda     $16, 8($sp)
-        jsr     $26, do_pipe_flags
-
-        ldq     $26, 0($sp)
-        bne     $0, 1f
-
-        /* The return values are in $0 and $20.  */
-        ldl     $1, 12($sp)
-        ldl     $0, 8($sp)
-
-        stq     $1, 80+16($sp)
-1:      lda     $sp, 16($sp)
-        ret
-.end sys_alpha_pipe
-
-        .align  4
         .globl  sys_execve
         .ent    sys_execve
 sys_execve:
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 98a103621af..bc1acdda7a5 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -1404,3 +1404,52 @@ SYSCALL_DEFINE3(osf_writev, unsigned long, fd,
 }
 
 #endif
+
+SYSCALL_DEFINE2(osf_getpriority, int, which, int, who)
+{
+        int prio = sys_getpriority(which, who);
+        if (prio >= 0) {
+                /* Return value is the unbiased priority, i.e. 20 - prio.
+                   This does result in negative return values, so signal
+                   no error */
+                force_successful_syscall_return();
+                prio = 20 - prio;
+        }
+        return prio;
+}
+
+SYSCALL_DEFINE0(getxuid)
+{
+        current_pt_regs()->r20 = sys_geteuid();
+        return sys_getuid();
+}
+
+SYSCALL_DEFINE0(getxgid)
+{
+        current_pt_regs()->r20 = sys_getegid();
+        return sys_getgid();
+}
+
+SYSCALL_DEFINE0(getxpid)
+{
+        current_pt_regs()->r20 = sys_getppid();
+        return sys_getpid();
+}
+
+SYSCALL_DEFINE0(alpha_pipe)
+{
+        int fd[2];
+        int res = do_pipe_flags(fd, 0);
+        if (!res) {
+                /* The return values are in $0 and $20.  */
+                current_pt_regs()->r20 = fd[1];
+                res = fd[0];
+        }
+        return res;
+}
+
+SYSCALL_DEFINE1(sethae, unsigned long, val)
+{
+        current_pt_regs()->hae = val;
+        return 0;
+}
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 153d3fce3e8..d6fde98b74b 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -455,3 +455,22 @@ get_wchan(struct task_struct *p)
         }
         return pc;
 }
+
+int kernel_execve(const char *path, const char *const argv[], const char *const envp[])
+{
+        /* Avoid the HAE being gratuitously wrong, which would cause us
+           to do the whole turn off interrupts thing and restore it.  */
+        struct pt_regs regs = {.hae = alpha_mv.hae_cache};
+        int err = do_execve(path, argv, envp, &regs);
+        if (!err) {
+                struct pt_regs *p = current_pt_regs();
+                /* copy regs to normal position and off to userland we go... */
+                *p = regs;
+                __asm__ __volatile__ (
+                        "mov    %0, $sp;"
+                        "br     $31, ret_from_sys_call"
+                        : : "r"(p));
+        }
+        return err;
+}
+EXPORT_SYMBOL(kernel_execve);
diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S
index 87835235f11..2ac6b45c3e0 100644
--- a/arch/alpha/kernel/systbls.S
+++ b/arch/alpha/kernel/systbls.S
@@ -111,7 +111,7 @@ sys_call_table:
         .quad sys_socket
         .quad sys_connect
         .quad sys_accept
-        .quad osf_getpriority                   /* 100 */
+        .quad sys_osf_getpriority                       /* 100 */
         .quad sys_send
         .quad sys_recv
         .quad sys_sigreturn
@@ -522,6 +522,8 @@ sys_call_table:
         .quad sys_setns
         .quad sys_accept4
         .quad sys_sendmmsg
+        .quad sys_process_vm_readv
+        .quad sys_process_vm_writev             /* 505 */
 
         .size sys_call_table, . - sys_call_table
         .type sys_call_table, @object