diff options
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 5ee818516a1c..07cd0d68ee02 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -23,6 +23,7 @@ #include <linux/file.h> #include <linux/fdtable.h> #include <linux/iocontext.h> +#include <linux/kasan.h> #include <linux/key.h> #include <linux/binfmts.h> #include <linux/mman.h> @@ -171,6 +172,7 @@ static inline void free_thread_stack(unsigned long *stack) { struct page *page = virt_to_page(stack); + kasan_alloc_pages(page, THREAD_SIZE_ORDER); __free_kmem_pages(page, THREAD_SIZE_ORDER); } # else @@ -698,8 +700,9 @@ EXPORT_SYMBOL_GPL(__mmdrop); /* * Decrement the use count and release all resources for an mm. */ -void mmput(struct mm_struct *mm) +int mmput(struct mm_struct *mm) { + int mm_freed = 0; might_sleep(); if (atomic_dec_and_test(&mm->mm_users)) { @@ -717,7 +720,9 @@ void mmput(struct mm_struct *mm) if (mm->binfmt) module_put(mm->binfmt->module); mmdrop(mm); + mm_freed = 1; } + return mm_freed; } EXPORT_SYMBOL_GPL(mmput); @@ -1680,6 +1685,7 @@ bad_fork_cleanup_audit: bad_fork_cleanup_perf: perf_event_free_task(p); bad_fork_cleanup_policy: + free_task_load_ptrs(p); #ifdef CONFIG_NUMA mpol_put(p->mempolicy); bad_fork_cleanup_threadgroup_lock: @@ -1711,7 +1717,7 @@ struct task_struct *fork_idle(int cpu) cpu_to_node(cpu)); if (!IS_ERR(task)) { init_idle_pids(task->pids); - init_idle(task, cpu); + init_idle(task, cpu, false); } return task; |