Merge branch 'akpm' (patches from Andrew Morton)

Merge more patches from Andrew Morton:
 "The rest of MM.  Plus one misc cleanup"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (35 commits)
  mm/Kconfig: add MMU dependency for MIGRATION.
  kernel: replace strict_strto*() with kstrto*()
  mm, thp: count thp_fault_fallback anytime thp fault fails
  thp: consolidate code between handle_mm_fault() and do_huge_pmd_anonymous_page()
  thp: do_huge_pmd_anonymous_page() cleanup
  thp: move maybe_pmd_mkwrite() out of mk_huge_pmd()
  mm: cleanup add_to_page_cache_locked()
  thp: account anon transparent huge pages into NR_ANON_PAGES
  truncate: drop 'oldsize' truncate_pagecache() parameter
  mm: make lru_add_drain_all() selective
  memcg: document cgroup dirty/writeback memory statistics
  memcg: add per cgroup writeback pages accounting
  memcg: check for proper lock held in mem_cgroup_update_page_stat
  memcg: remove MEMCG_NR_FILE_MAPPED
  memcg: reduce function dereference
  memcg: avoid overflow caused by PAGE_ALIGN
  memcg: rename RESOURCE_MAX to RES_COUNTER_MAX
  memcg: correct RESOURCE_MAX to ULLONG_MAX
  mm: memcg: do not trap chargers with full callstack on OOM
  mm: memcg: rework and document OOM waiting and wakeup
  ...

1 files changed, 1 insertions, 2 deletions

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index c79fd7dabe79..0d424d7ac02b 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4587,7 +4587,6 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
 
         if (attr->ia_valid & ATTR_SIZE && attr->ia_size != inode->i_size) {
                 handle_t *handle;
-                loff_t oldsize = inode->i_size;
 
                 if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) {
                         struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
@@ -4650,7 +4649,7 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
                  * Truncate pagecache after we've waited for commit
                  * in data=journal mode to make pages freeable.
                  */
-                truncate_pagecache(inode, oldsize, inode->i_size);
+                        truncate_pagecache(inode, inode->i_size);
         }
         /*
          * We want to call ext4_truncate() even if attr->ia_size ==