f2fs: fix a missing size change in f2fs_setattr

commit c0ed4405a99ec9be2a0f062eaafc002d8d26c99f upstream.

This patch fix a missing size change in f2fs_setattr

Signed-off-by: Yunlei He <heyunlei@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

Author: Yunlei He

fs/f2fs/file.c

@@ -678,6 +678,7 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
 {
 	struct inode *inode = d_inode(dentry);
 	int err;
+	bool size_changed = false;
 
 	err = inode_change_ok(inode, attr);
 	if (err)
@@ -708,6 +709,8 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
 			}
 			inode->i_mtime = inode->i_ctime = current_time(inode);
 		}
+
+		size_changed = true;
 	}
 
 	__setattr_copy(inode, attr);
@@ -720,8 +723,8 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
 		}
 	}
 
-	/* update attributes only */
-	f2fs_mark_inode_dirty_sync(inode, false);
+	/* file size may changed here */
+	f2fs_mark_inode_dirty_sync(inode, size_changed);
 
 	/* inode change will produce dirty node pages flushed by checkpoint */
 	f2fs_balance_fs(F2FS_I_SB(inode), true);