[SPARC64]: Turn off TSB growing for now.

[mirror_ubuntu-bionic-kernel.git] / arch / sparc64 / mm / tsb.c

diff --git a/arch/sparc64/mm/tsb.c b/arch/sparc64/mm/tsb.c
index 787533f01049448340ef89b787f2627a89b3bc6d..2cc8e6528c63327aeaa56ce43181b4b8dca6f518 100644 (file)
--- a/arch/sparc64/mm/tsb.c
+++ b/arch/sparc64/mm/tsb.c
@@ -310,7 +310,6 @@ void tsb_grow(struct mm_struct *mm, unsigned long rss, gfp_t gfp_flags)
 
 int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
 {
-       unsigned long initial_rss;
 
        mm->context.sparc64_ctx_val = 0UL;
 
@@ -319,15 +318,7 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
         * will be confused and think there is an older TSB to free up.
         */
        mm->context.tsb = NULL;
-
-       /* If this is fork, inherit the parent's TSB size.  We would
-        * grow it to that size on the first page fault anyways.
-        */
-       initial_rss = mm->context.tsb_nentries;
-       if (initial_rss)
-               initial_rss -= 1;
-
-       tsb_grow(mm, initial_rss, GFP_KERNEL);
+       tsb_grow(mm, 0, GFP_KERNEL);
 
        if (unlikely(!mm->context.tsb))
                return -ENOMEM;