mm: remove unused GUP flags

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / mm / memory.c

diff --git a/mm/memory.c b/mm/memory.c
index 3cbeaaba564233c02f1a317d26c4a8a9a1e02ca2..4b5200f5f35ac96f176a75482fee45ca995ce8d5 100644 (file)
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1217,8 +1217,6 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
        unsigned int vm_flags = 0;
        int write = !!(flags & GUP_FLAGS_WRITE);
        int force = !!(flags & GUP_FLAGS_FORCE);
-       int ignore = !!(flags & GUP_FLAGS_IGNORE_VMA_PERMISSIONS);
-       int ignore_sigkill = !!(flags & GUP_FLAGS_IGNORE_SIGKILL);
 
        if (nr_pages <= 0)
                return 0;
@@ -1244,7 +1242,7 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
                        pte_t *pte;
 
                        /* user gate pages are read-only */
-                       if (!ignore && write)
+                       if (write)
                                return i ? : -EFAULT;
                        if (pg > TASK_SIZE)
                                pgd = pgd_offset_k(pg);
@@ -1278,7 +1276,7 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
 
                if (!vma ||
                    (vma->vm_flags & (VM_IO | VM_PFNMAP)) ||
-                   (!ignore && !(vm_flags & vma->vm_flags)))
+                   !(vm_flags & vma->vm_flags))
                        return i ? : -EFAULT;
 
                if (is_vm_hugetlb_page(vma)) {
@@ -1298,13 +1296,9 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
 
                        /*
                         * If we have a pending SIGKILL, don't keep faulting
-                        * pages and potentially allocating memory, unless
-                        * current is handling munlock--e.g., on exit. In
-                        * that case, we are not allocating memory.  Rather,
-                        * we're only unlocking already resident/mapped pages.
+                        * pages and potentially allocating memory.
                         */
-                       if (unlikely(!ignore_sigkill &&
-                                       fatal_signal_pending(current)))
+                       if (unlikely(fatal_signal_pending(current)))
                                return i ? i : -ERESTARTSYS;
 
                        if (write)