page-writeback.c: subtract min_free_kbytes from dirtyable memory

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

diff --git a/mm/nommu.c b/mm/nommu.c
index 79c3cac87afa1d1f96fc9397f50bb370980e0a84..87854a55829d4bd54b8c2f45f3ced8673bdcd493 100644 (file)
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -29,6 +29,7 @@
 #include <linux/security.h>
 #include <linux/syscalls.h>
 #include <linux/audit.h>
+#include <linux/sched/sysctl.h>
 
 #include <asm/uaccess.h>
 #include <asm/tlb.h>
@@ -1249,7 +1250,8 @@ unsigned long do_mmap_pgoff(struct file *file,
                            unsigned long len,
                            unsigned long prot,
                            unsigned long flags,
-                           unsigned long pgoff)
+                           unsigned long pgoff,
+                           unsigned long *populate)
 {
        struct vm_area_struct *vma;
        struct vm_region *region;
@@ -1259,6 +1261,8 @@ unsigned long do_mmap_pgoff(struct file *file,
 
        kenter(",%lx,%lx,%lx,%lx,%lx", addr, len, prot, flags, pgoff);
 
+       *populate = 0;
+
        /* decide whether we should attempt the mapping, and if so what sort of
         * mapping */
        ret = validate_mmap_request(file, addr, len, prot, flags, pgoff,
@@ -1903,7 +1907,7 @@ int __vm_enough_memory(struct mm_struct *mm, long pages, int cap_sys_admin)
                 */
                free -= global_page_state(NR_SHMEM);
 
-               free += nr_swap_pages;
+               free += get_nr_swap_pages();
 
                /*
                 * Any slabs which are created with the