x86/smpboot: Init apic mapping before usage

[cascardo/linux.git] / fs / exec.c

diff --git a/fs/exec.c b/fs/exec.c
index 6fcfb3f..4e497b9 100644 (file)
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -191,6 +191,7 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
 {
        struct page *page;
        int ret;
+       unsigned int gup_flags = FOLL_FORCE;
 
 #ifdef CONFIG_STACK_GROWSUP
        if (write) {
@@ -199,12 +200,16 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
                        return NULL;
        }
 #endif
+
+       if (write)
+               gup_flags |= FOLL_WRITE;
+
        /*
         * We are doing an exec().  'current' is the process
         * doing the exec and bprm->mm is the new process's mm.
         */
-       ret = get_user_pages_remote(current, bprm->mm, pos, 1, write,
-                       1, &page, NULL);
+       ret = get_user_pages_remote(current, bprm->mm, pos, 1, gup_flags,
+                       &page, NULL);
        if (ret <= 0)
                return NULL;