diff options
Diffstat (limited to 'arch/sparc/mm/tsb.c')
| -rw-r--r-- | arch/sparc/mm/tsb.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/sparc/mm/tsb.c b/arch/sparc/mm/tsb.c index 70e50ea2a5b6..a35ee832baf3 100644 --- a/arch/sparc/mm/tsb.c +++ b/arch/sparc/mm/tsb.c @@ -445,6 +445,8 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm) mm->context.huge_pte_count = 0; #endif + mm->context.pgtable_page = NULL; + /* copy_mm() copies over the parent's mm_struct before calling * us, so we need to zero out the TSB pointer or else tsb_grow() * will be confused and think there is an older TSB to free up. @@ -483,10 +485,17 @@ static void tsb_destroy_one(struct tsb_config *tp) void destroy_context(struct mm_struct *mm) { unsigned long flags, i; + struct page *page; for (i = 0; i < MM_NUM_TSBS; i++) tsb_destroy_one(&mm->context.tsb_block[i]); + page = mm->context.pgtable_page; + if (page && put_page_testzero(page)) { + pgtable_page_dtor(page); + free_hot_cold_page(page, 0); + } + spin_lock_irqsave(&ctx_alloc_lock, flags); if (CTX_VALID(mm->context)) { |