alpha: introduce ret_from_kernel_execve(), switch to generic kernel_execve()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 13 insertions, 0 deletions

diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S
index 421dccf273eb..7e43e1156d10 100644
--- a/arch/alpha/kernel/entry.S
+++ b/arch/alpha/kernel/entry.S
@@ -626,6 +626,19 @@ ret_from_kernel_thread:
         jmp     $31, sys_exit
 .end ret_from_kernel_thread
 
+        .globl  ret_from_kernel_execve
+        .align  4
+        .ent    ret_from_kernel_execve
+ret_from_kernel_execve:
+        mov     $16, $sp
+        /* Avoid the HAE being gratuitously wrong, to avoid restoring it.  */
+        ldq     $2, alpha_mv+HAE_CACHE
+        stq     $2, 152($sp)            /* HAE */
+        mov     $31, $19                /* to disable syscall restarts */
+        br      $31, ret_to_user
+
+.end    ret_from_kernel_execve
+
 
 /*
  * Special system calls.  Most of these are special in that they either