PMIC:rk818.dtsi: remove rk818_reg_ldo2 aways-on,

[firefly-linux-kernel-4.4.55.git] / fs / exec.c

diff --git a/fs/exec.c b/fs/exec.c
index c568bdce6413e22728de58e8ff7b64311b64f695..cb7f31c71c6ba60e3e38118494c536751b0a2a7d 100644 (file)
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -607,7 +607,7 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
                return -ENOMEM;
 
        lru_add_drain();
-       tlb_gather_mmu(&tlb, mm, 0);
+       tlb_gather_mmu(&tlb, mm, old_start, old_end);
        if (new_end > old_start) {
                /*
                 * when the old and new regions overlap clear from new_end.
@@ -624,7 +624,7 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
                free_pgd_range(&tlb, old_start, old_end, new_end,
                        vma->vm_next ? vma->vm_next->vm_start : USER_PGTABLES_CEILING);
        }
-       tlb_finish_mmu(&tlb, new_end, old_end);
+       tlb_finish_mmu(&tlb, old_start, old_end);
 
        /*
         * Shrink the vma to just the new range.  Always succeeds.
@@ -654,10 +654,10 @@ int setup_arg_pages(struct linux_binprm *bprm,
        unsigned long rlim_stack;
 
 #ifdef CONFIG_STACK_GROWSUP
-       /* Limit stack size to 1GB */
+       /* Limit stack size */
        stack_base = rlimit_max(RLIMIT_STACK);
-       if (stack_base > (1 << 30))
-               stack_base = 1 << 30;
+       if (stack_base > STACK_SIZE_MAX)
+               stack_base = STACK_SIZE_MAX;
 
        /* Make sure we didn't let the argument array grow too large. */
        if (vma->vm_end - vma->vm_start > stack_base)
@@ -1669,6 +1669,12 @@ int __get_dumpable(unsigned long mm_flags)
        return (ret > SUID_DUMP_USER) ? SUID_DUMP_ROOT : ret;
 }
 
+/*
+ * This returns the actual value of the suid_dumpable flag. For things
+ * that are using this for checking for privilege transitions, it must
+ * test against SUID_DUMP_USER rather than treating it as a boolean
+ * value.
+ */
 int get_dumpable(struct mm_struct *mm)
 {
        return __get_dumpable(mm->flags);