powerpc: Remove unused paca->pgdir field

The pgdir field in the paca was a leftover from the dynamic VSIDs
patch, and is not used in the current kernel code.  This removes it.

Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 0 insertions, 4 deletions

diff --git a/arch/powerpc/mm/stab.c b/arch/powerpc/mm/stab.c
index 4a9291d9fef8..691320c90b78 100644
--- a/arch/powerpc/mm/stab.c
+++ b/arch/powerpc/mm/stab.c
@@ -200,10 +200,6 @@ void switch_stab(struct task_struct *tsk, struct mm_struct *mm)
 
         __get_cpu_var(stab_cache_ptr) = 0;
 
-#ifdef CONFIG_PPC_64K_PAGES
-        get_paca()->pgdir = mm->pgd;
-#endif /* CONFIG_PPC_64K_PAGES */
-
         /* Now preload some entries for the new task */
         if (test_tsk_thread_flag(tsk, TIF_32BIT))
                 unmapped_base = TASK_UNMAPPED_BASE_USER32;