hide addon patches, move yaffs2 to addon style patch-

7 files changed, 5 insertions, 204859 deletions

diff --git a/target/linux/config/Config.in.addons b/target/linux/config/Config.in.addons
index 5c020812d..52a56d61c 100644
--- a/target/linux/config/Config.in.addons
+++ b/target/linux/config/Config.in.addons
@@ -1,17 +1,14 @@
-menu "Kernel addons"
+# This file is part of the OpenADK project. OpenADK is copyrighted
+# material, please see the LICENCE file in the top-level directory.
+
+config ADK_KERNEL_ADDON_YAFFS2
+	boolean
 
 config ADK_KERNEL_ADDON_GRSEC
-	prompt "Enable Grsecurity addon"
 	boolean
 	depends on ADK_KERNEL_VERSION_3_14
-	help
-	  http://www.grsecurity.net
 
 config ADK_KERNEL_ADDON_MPTCP
-	prompt "Enable Multipath TCP addon"
 	boolean
 	depends on ADK_KERNEL_VERSION_3_14
-	help
-	  http://www.multipath-tcp.org
 
-endmenu
diff --git a/target/linux/patches/3.10.40/yaffs2.patch b/target/linux/patches/3.10.40/yaffs2.patch
deleted file mode 100644
index 172629530..000000000
--- a/target/linux/patches/3.10.40/yaffs2.patch
+++ /dev/null
@@ -1,16547 +0,0 @@
-diff -Nur linux-3.10.40.orig/fs/Kconfig linux-3.10.40/fs/Kconfig
---- linux-3.10.40.orig/fs/Kconfig	2014-05-13 14:00:04.000000000 +0200
-+++ linux-3.10.40/fs/Kconfig	2014-05-17 12:48:10.000000000 +0200
-@@ -193,6 +193,7 @@
- source "fs/befs/Kconfig"
- source "fs/bfs/Kconfig"
- source "fs/efs/Kconfig"
-+source "fs/yaffs2/Kconfig"
- source "fs/jffs2/Kconfig"
- # UBIFS File system configuration
- source "fs/ubifs/Kconfig"
-diff -Nur linux-3.10.40.orig/fs/Makefile linux-3.10.40/fs/Makefile
---- linux-3.10.40.orig/fs/Makefile	2014-05-13 14:00:04.000000000 +0200
-+++ linux-3.10.40/fs/Makefile	2014-05-17 12:48:10.000000000 +0200
-@@ -126,3 +126,4 @@
- obj-$(CONFIG_CEPH_FS)		+= ceph/
- obj-$(CONFIG_PSTORE)		+= pstore/
- obj-$(CONFIG_EFIVAR_FS)		+= efivarfs/
-+obj-$(CONFIG_YAFFS_FS)		+= yaffs2/
-diff -Nur linux-3.10.40.orig/fs/yaffs2/Kconfig linux-3.10.40/fs/yaffs2/Kconfig
---- linux-3.10.40.orig/fs/yaffs2/Kconfig	1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.10.40/fs/yaffs2/Kconfig	2014-05-17 12:48:10.000000000 +0200
-@@ -0,0 +1,171 @@
-+#
-+# yaffs file system configurations
-+#
-+
-+config YAFFS_FS
-+	tristate "yaffs2 file system support"
-+	default n
-+	depends on MTD_BLOCK
-+	select YAFFS_YAFFS1
-+	select YAFFS_YAFFS2
-+	help
-+	  yaffs2, or Yet Another Flash File System, is a file system
-+	  optimised for NAND Flash chips.
-+
-+	  To compile the yaffs2 file system support as a module, choose M
-+	  here: the module will be called yaffs2.
-+
-+	  If unsure, say N.
-+
-+	  Further information on yaffs2 is available at
-+	  <http://www.aleph1.co.uk/yaffs/>.
-+
-+config YAFFS_YAFFS1
-+	bool "512 byte / page devices"
-+	depends on YAFFS_FS
-+	default y
-+	help
-+	  Enable yaffs1 support -- yaffs for 512 byte / page devices
-+
-+	  Not needed for 2K-page devices.
-+
-+	  If unsure, say Y.
-+
-+config YAFFS_9BYTE_TAGS
-+	bool "Use older-style on-NAND data format with pageStatus byte"
-+	depends on YAFFS_YAFFS1
-+	default n
-+	help
-+
-+	  Older-style on-NAND data format has a "pageStatus" byte to record
-+	  chunk/page state.  This byte is zero when the page is discarded.
-+	  Choose this option if you have existing on-NAND data using this
-+	  format that you need to continue to support.  New data written
-+	  also uses the older-style format.  Note: Use of this option
-+	  generally requires that MTD's oob layout be adjusted to use the
-+	  older-style format.  See notes on tags formats and MTD versions
-+	  in yaffs_mtdif1.c.
-+
-+	  If unsure, say N.
-+
-+config YAFFS_DOES_ECC
-+	bool "Lets yaffs do its own ECC"
-+	depends on YAFFS_FS && YAFFS_YAFFS1 && !YAFFS_9BYTE_TAGS
-+	default n
-+	help
-+	  This enables yaffs to use its own ECC functions instead of using
-+	  the ones from the generic MTD-NAND driver.
-+
-+	  If unsure, say N.
-+
-+config YAFFS_ECC_WRONG_ORDER
-+	bool "Use the same ecc byte order as Steven Hill's nand_ecc.c"
-+	depends on YAFFS_FS && YAFFS_DOES_ECC && !YAFFS_9BYTE_TAGS
-+	default n
-+	help
-+	  This makes yaffs_ecc.c use the same ecc byte order as Steven
-+	  Hill's nand_ecc.c. If not set, then you get the same ecc byte
-+	  order as SmartMedia.
-+
-+	  If unsure, say N.
-+
-+config YAFFS_YAFFS2
-+	bool "2048 byte (or larger) / page devices"
-+	depends on YAFFS_FS
-+	default y
-+	help
-+	  Enable yaffs2 support -- yaffs for >= 2K bytes per page devices
-+
-+	  If unsure, say Y.
-+
-+config YAFFS_AUTO_YAFFS2
-+	bool "Autoselect yaffs2 format"
-+	depends on YAFFS_YAFFS2
-+	default y
-+	help
-+	  Without this, you need to explicitely use yaffs2 as the file
-+	  system type. With this, you can say "yaffs" and yaffs or yaffs2
-+	  will be used depending on the device page size (yaffs on
-+	  512-byte page devices, yaffs2 on 2K page devices).
-+
-+	  If unsure, say Y.
-+
-+config YAFFS_DISABLE_TAGS_ECC
-+	bool "Disable yaffs from doing ECC on tags by default"
-+	depends on YAFFS_FS && YAFFS_YAFFS2
-+	default n
-+	help
-+	  This defaults yaffs to using its own ECC calculations on tags instead of
-+	  just relying on the MTD.
-+	  This behavior can also be overridden with tags_ecc_on and
-+	  tags_ecc_off mount options.
-+
-+	  If unsure, say N.
-+
-+config YAFFS_ALWAYS_CHECK_CHUNK_ERASED
-+	bool "Force chunk erase check"
-+	depends on YAFFS_FS
-+	default n
-+	help
-+          Normally yaffs only checks chunks before writing until an erased
-+	  chunk is found. This helps to detect any partially written
-+	  chunks that might have happened due to power loss.
-+
-+	  Enabling this forces on the test that chunks are erased in flash
-+	  before writing to them. This takes more time but is potentially
-+	  a bit more secure.
-+
-+	  Suggest setting Y during development and ironing out driver
-+	  issues etc. Suggest setting to N if you want faster writing.
-+
-+	  If unsure, say Y.
-+
-+config YAFFS_EMPTY_LOST_AND_FOUND
-+	bool "Empty lost and found on boot"
-+	depends on YAFFS_FS
-+	default n
-+	help
-+	  If this is enabled then the contents of lost and found is
-+	  automatically dumped at mount.
-+
-+	  If unsure, say N.
-+
-+config YAFFS_DISABLE_BLOCK_REFRESHING
-+	bool "Disable yaffs2 block refreshing"
-+	depends on YAFFS_FS
-+	default n
-+	help
-+	 If this is set, then block refreshing is disabled.
-+	 Block refreshing infrequently refreshes the oldest block in
-+	 a yaffs2 file system. This mechanism helps to refresh flash to
-+	 mitigate against data loss. This is particularly useful for MLC.
-+
-+	  If unsure, say N.
-+
-+config YAFFS_DISABLE_BACKGROUND
-+	bool "Disable yaffs2 background processing"
-+	depends on YAFFS_FS
-+	default n
-+	help
-+	 If this is set, then background processing is disabled.
-+	 Background processing makes many foreground activities faster.
-+
-+	 If unsure, say N.
-+
-+config YAFFS_DISABLE_BAD_BLOCK_MARKING
-+	bool "Disable yaffs2 bad block marking"
-+	depends on YAFFS_FS
-+	default n
-+	help
-+	 Useful during early flash bring up to prevent problems causing
-+	 lots of bad block marking.
-+
-+	 If unsure, say N.
-+
-+config YAFFS_XATTR
-+	bool "Enable yaffs2 xattr support"
-+	depends on YAFFS_FS
-+	default y
-+	help
-+	 If this is set then yaffs2 will provide xattr support.
-+	 If unsure, say Y.
-diff -Nur linux-3.10.40.orig/fs/yaffs2/Makefile linux-3.10.40/fs/yaffs2/Makefile
---- linux-3.10.40.orig/fs/yaffs2/Makefile	1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.10.40/fs/yaffs2/Makefile	2014-05-17 12:48:10.000000000 +0200
-@@ -0,0 +1,18 @@
-+#
-+# Makefile for the linux YAFFS filesystem routines.
-+#
-+
-+obj-$(CONFIG_YAFFS_FS) += yaffs.o
-+
-+yaffs-y := yaffs_ecc.o yaffs_vfs.o yaffs_guts.o yaffs_checkptrw.o
-+yaffs-y += yaffs_packedtags1.o yaffs_packedtags2.o yaffs_nand.o
-+yaffs-y += yaffs_tagscompat.o yaffs_tagsmarshall.o
-+yaffs-y += yaffs_mtdif.o
-+yaffs-y += yaffs_nameval.o yaffs_attribs.o
-+yaffs-y += yaffs_allocator.o
-+yaffs-y += yaffs_yaffs1.o
-+yaffs-y += yaffs_yaffs2.o
-+yaffs-y += yaffs_bitmap.o
-+yaffs-y += yaffs_summary.o
-+yaffs-y += yaffs_verify.o
-+
-diff -Nur linux-3.10.40.orig/fs/yaffs2/yaffs_allocator.c linux-3.10.40/fs/yaffs2/yaffs_allocator.c
---- linux-3.10.40.orig/fs/yaffs2/yaffs_allocator.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.10.40/fs/yaffs2/yaffs_allocator.c	2014-05-17 12:48:10.000000000 +0200
-@@ -0,0 +1,357 @@
-+/*
-+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2011 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+#include "yaffs_allocator.h"
-+#include "yaffs_guts.h"
-+#include "yaffs_trace.h"
-+#include "yportenv.h"
-+
-+/*
-+ * Each entry in yaffs_tnode_list and yaffs_obj_list hold blocks
-+ * of approx 100 objects that are themn allocated singly.
-+ * This is basically a simplified slab allocator.
-+ *
-+ * We don't use the Linux slab allocator because slab does not allow
-+ * us to dump all the objects in one hit when we do a umount and tear
-+ * down  all the tnodes and objects. slab requires that we first free
-+ * the individual objects.
-+ *
-+ * Once yaffs has been mainlined I shall try to motivate for a change
-+ * to slab to provide the extra features we need here.
-+ */
-+
-+struct yaffs_tnode_list {
-+	struct yaffs_tnode_list *next;
-+	struct yaffs_tnode *tnodes;
-+};
-+
-+struct yaffs_obj_list {
-+	struct yaffs_obj_list *next;
-+	struct yaffs_obj *objects;
-+};
-+
-+struct yaffs_allocator {
-+	int n_tnodes_created;
-+	struct yaffs_tnode *free_tnodes;
-+	int n_free_tnodes;
-+	struct yaffs_tnode_list *alloc_tnode_list;
-+
-+	int n_obj_created;
-+	struct list_head free_objs;
-+	int n_free_objects;
-+
-+	struct yaffs_obj_list *allocated_obj_list;
-+};
-+
-+static void yaffs_deinit_raw_tnodes(struct yaffs_dev *dev)
-+{
-+	struct yaffs_allocator *allocator =
-+	    (struct yaffs_allocator *)dev->allocator;
-+	struct yaffs_tnode_list *tmp;
-+
-+	if (!allocator) {
-+		BUG();
-+		return;
-+	}
-+
-+	while (allocator->alloc_tnode_list) {
-+		tmp = allocator->alloc_tnode_list->next;
-+
-+		kfree(allocator->alloc_tnode_list->tnodes);
-+		kfree(allocator->alloc_tnode_list);
-+		allocator->alloc_tnode_list = tmp;
-+	}
-+
-+	allocator->free_tnodes = NULL;
-+	allocator->n_free_tnodes = 0;
-+	allocator->n_tnodes_created = 0;
-+}
-+
-+static void yaffs_init_raw_tnodes(struct yaffs_dev *dev)
-+{
-+	struct yaffs_allocator *allocator = dev->allocator;
-+
-+	if (!allocator) {
-+		BUG();
-+		return;
-+	}
-+
-+	allocator->alloc_tnode_list = NULL;
-+	allocator->free_tnodes = NULL;
-+	allocator->n_free_tnodes = 0;
-+	allocator->n_tnodes_created = 0;
-+}
-+
-+static int yaffs_create_tnodes(struct yaffs_dev *dev, int n_tnodes)
-+{
-+	struct yaffs_allocator *allocator =
-+	    (struct yaffs_allocator *)dev->allocator;
-+	int i;
-+	struct yaffs_tnode *new_tnodes;
-+	u8 *mem;
-+	struct yaffs_tnode *curr;
-+	struct yaffs_tnode *next;
-+	struct yaffs_tnode_list *tnl;
-+
-+	if (!allocator) {
-+		BUG();
-+		return YAFFS_FAIL;
-+	}
-+
-+	if (n_tnodes < 1)
-+		return YAFFS_OK;
-+
-+	/* make these things */
-+	new_tnodes = kmalloc(n_tnodes * dev->tnode_size, GFP_NOFS);
-+	mem = (u8 *) new_tnodes;
-+
-+	if (!new_tnodes) {
-+		yaffs_trace(YAFFS_TRACE_ERROR,
-+			"yaffs: Could not allocate Tnodes");
-+		return YAFFS_FAIL;
-+	}
-+
-+	/* New hookup for wide tnodes */
-+	for (i = 0; i < n_tnodes - 1; i++) {
-+		curr = (struct yaffs_tnode *)&mem[i * dev->tnode_size];
-+		next = (struct yaffs_tnode *)&mem[(i + 1) * dev->tnode_size];
-+		curr->internal[0] = next;
-+	}
-+
-+	curr = (struct yaffs_tnode *)&mem[(n_tnodes - 1) * dev->tnode_size];
-+	curr->internal[0] = allocator->free_tnodes;
-+	allocator->free_tnodes = (struct yaffs_tnode *)mem;
-+
-+	allocator->n_free_tnodes += n_tnodes;
-+	allocator->n_tnodes_created += n_tnodes;
-+
-+	/* Now add this bunch of tnodes to a list for freeing up.
-+	 * NB If we can't add this to the management list it isn't fatal
-+	 * but it just means we can't free this bunch of tnodes later.
-+	 */
-+	tnl = kmalloc(sizeof(struct yaffs_tnode_list), GFP_NOFS);
-+	if (!tnl) {
-+		yaffs_trace(YAFFS_TRACE_ERROR,
-+			"Could not add tnodes to management list");
-+		return YAFFS_FAIL;
-+	} else {
-+		tnl->tnodes = new_tnodes;
-+		tnl->next = allocator->alloc_tnode_list;
-+		allocator->alloc_tnode_list = tnl;
-+	}
-+
-+	yaffs_trace(YAFFS_TRACE_ALLOCATE, "Tnodes added");
-+
-+	return YAFFS_OK;
-+}
-+
-+struct yaffs_tnode *yaffs_alloc_raw_tnode(struct yaffs_dev *dev)
-+{
-+	struct yaffs_allocator *allocator =
-+	    (struct yaffs_allocator *)dev->allocator;
-+	struct yaffs_tnode *tn = NULL;
-+
-+	if (!allocator) {
-+		BUG();
-+		return NULL;
-+	}
-+
-+	/* If there are none left make more */
-+	if (!allocator->free_tnodes)
-+		yaffs_create_tnodes(dev, YAFFS_ALLOCATION_NTNODES);
-+
-+	if (allocator->free_tnodes) {
-+		tn = allocator->free_tnodes;
-+		allocator->free_tnodes = allocator->free_tnodes->internal[0];
-+		allocator->n_free_tnodes--;
-+	}
-+
-+	return tn;
-+}
-+
-+/* FreeTnode frees up a tnode and puts it back on the free list */
-+void yaffs_free_raw_tnode(struct yaffs_dev *dev, struct yaffs_tnode *tn)
-+{
-+	struct yaffs_allocator *allocator = dev->allocator;
-+
-+	if (!allocator) {
-+		BUG();
-+		return;
-+	}
-+
-+	if (tn) {
-+		tn->internal[0] = allocator->free_tnodes;
-+		allocator->free_tnodes = tn;
-+		allocator->n_free_tnodes++;
-+	}
-+	dev->checkpoint_blocks_required = 0;	/* force recalculation */
-+}
-+
-+/*--------------- yaffs_obj alloaction ------------------------
-+ *
-+ * Free yaffs_objs are stored in a list using obj->siblings.
-+ * The blocks of allocated objects are stored in a linked list.
-+ */
-+
-+static void yaffs_init_raw_objs(struct yaffs_dev *dev)
-+{
-+	struct yaffs_allocator *allocator = dev->allocator;
-+
-+	if (!allocator) {
-+		BUG();
-+		return;
-+	}
-+
-+	allocator->allocated_obj_list = NULL;
-+	INIT_LIST_HEAD(&allocator->free_objs);
-+	allocator->n_free_objects = 0;
-+}
-+
-+static void yaffs_deinit_raw_objs(struct yaffs_dev *dev)
-+{
-+	struct yaffs_allocator *allocator = dev->allocator;
-+	struct yaffs_obj_list *tmp;
-+
-+	if (!allocator) {
-+		BUG();
-+		return;
-+	}
-+
-+	while (allocator->allocated_obj_list) {
-+		tmp = allocator->allocated_obj_list->next;
-+		kfree(allocator->allocated_obj_list->objects);
-+		kfree(allocator->allocated_obj_list);
-+		allocator->allocated_obj_list = tmp;
-+	}
-+
-+	INIT_LIST_HEAD(&allocator->free_objs);
-+	allocator->n_free_objects = 0;
-+	allocator->n_obj_created = 0;
-+}
-+
-+static int yaffs_create_free_objs(struct yaffs_dev *dev, int n_obj)
-+{
-+	struct yaffs_allocator *allocator = dev->allocator;
-+	int i;
-+	struct yaffs_obj *new_objs;
-+	struct yaffs_obj_list *list;
-+
-+	if (!allocator) {
-+		BUG();
-+		return YAFFS_FAIL;
-+	}
-+
-+	if (n_obj < 1)
-+		return YAFFS_OK;
-+
-+	/* make these things */
-+	new_objs = kmalloc(n_obj * sizeof(struct yaffs_obj), GFP_NOFS);
-+	list = kmalloc(sizeof(struct yaffs_obj_list), GFP_NOFS);
-+
-+	if (!new_objs || !list) {
-+		kfree(new_objs);
-+		new_objs = NULL;
-+		kfree(list);
-+		list = NULL;
-+		yaffs_trace(YAFFS_TRACE_ALLOCATE,
-+			"Could not allocate more objects");
-+		return YAFFS_FAIL;
-+	}
-+
-+	/* Hook them into the free list */
-+	for (i = 0; i < n_obj; i++)
-+		list_add(&new_objs[i].siblings, &allocator->free_objs);
-+
-+	allocator->n_free_objects += n_obj;
-+	allocator->n_obj_created += n_obj;
-+
-+	/* Now add this bunch of Objects to a list for freeing up. */
-+
-+	list->objects = new_objs;
-+	list->next = allocator->allocated_obj_list;
-+	allocator->allocated_obj_list = list;
-+
-+	return YAFFS_OK;
-+}
-+
-+struct yaffs_obj *yaffs_alloc_raw_obj(struct yaffs_dev *dev)
-+{
-+	struct yaffs_obj *obj = NULL;
-+	struct list_head *lh;
-+	struct yaffs_allocator *allocator = dev->allocator;
-+
-+	if (!allocator) {
-+		BUG();
-+		return obj;
-+	}
-+
-+	/* If there are none left make more */
-+	if (list_empty(&allocator->free_objs))
-+		yaffs_create_free_objs(dev, YAFFS_ALLOCATION_NOBJECTS);
-+
-+	if (!list_empty(&allocator->free_objs)) {
-+		lh = allocator->free_objs.next;
-+		obj = list_entry(lh, struct yaffs_obj, siblings);
-+		list_del_init(lh);
-+		allocator->n_free_objects--;
-+	}
-+
-+	return obj;
-+}
-+
-+void yaffs_free_raw_obj(struct yaffs_dev *dev, struct yaffs_obj *obj)
-+{
-+
-+	struct yaffs_allocator *allocator = dev->allocator;
-+
-+	if (!allocator) {
-+		BUG();
-+		return;
-+	}
-+
-+	/* Link into the free list. */
-+	list_add(&obj->siblings, &allocator->free_objs);
-+	allocator->n_free_objects++;
-+}
-+
-+void yaffs_deinit_raw_tnodes_and_objs(struct yaffs_dev *dev)
-+{
-+
-+	if (!dev->allocator) {
-+		BUG();
-+		return;
-+	}
-+
-+	yaffs_deinit_raw_tnodes(dev);
-+	yaffs_deinit_raw_objs(dev);
-+	kfree(dev->allocator);
-+	dev->allocator = NULL;
-+}
-+
-+void yaffs_init_raw_tnodes_and_objs(struct yaffs_dev *dev)
-+{
-+	struct yaffs_allocator *allocator;
-+
-+	if (dev->allocator) {
-+		BUG();
-+		return;
-+	}
-+
-+	allocator = kmalloc(sizeof(struct yaffs_allocator), GFP_NOFS);
-+	if (allocator) {
-+		dev->allocator = allocator;
-+		yaffs_init_raw_tnodes(dev);
-+		yaffs_init_raw_objs(dev);
-+	}
-+}
-+
-diff -Nur linux-3.10.40.orig/fs/yaffs2/yaffs_allocator.h linux-3.10.40/fs/yaffs2/yaffs_allocator.h
---- linux-3.10.40.orig/fs/yaffs2/yaffs_allocator.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.10.40/fs/yaffs2/yaffs_allocator.h	2014-05-17 12:48:10.000000000 +0200
-@@ -0,0 +1,30 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2011 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+#ifndef __YAFFS_ALLOCATOR_H__
-+#define __YAFFS_ALLOCATOR_H__
-+
-+#include "yaffs_guts.h"
-+
-+void yaffs_init_raw_tnodes_and_objs(struct yaffs_dev *dev);
-+void yaffs_deinit_raw_tnodes_and_objs(struct yaffs_dev *dev);
-+
-+struct yaffs_tnode *yaffs_alloc_raw_tnode(struct yaffs_dev *dev);
-+void yaffs_free_raw_tnode(struct yaffs_dev *dev, struct yaffs_tnode *tn);
-+
-+struct yaffs_obj *yaffs_alloc_raw_obj(struct yaffs_dev *dev);
-+void yaffs_free_raw_obj(struct yaffs_dev *dev, struct yaffs_obj *obj);
-+
-+#endif
-diff -Nur linux-3.10.40.orig/fs/yaffs2/yaffs_attribs.c linux-3.10.40/fs/yaffs2/yaffs_attribs.c
---- linux-3.10.40.orig/fs/yaffs2/yaffs_attribs.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.10.40/fs/yaffs2/yaffs_attribs.c	2014-05-17 12:48:10.000000000 +0200
-@@ -0,0 +1,166 @@
-+/*
-+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2011 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+#include "yaffs_guts.h"
-+#include "yaffs_attribs.h"
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 5, 0))
-+static inline uid_t ia_uid_read(const struct iattr *iattr)
-+{
-+	return from_kuid(&init_user_ns, iattr->ia_uid);
-+}
-+
-+static inline gid_t ia_gid_read(const struct iattr *iattr)
-+{
-+	return from_kgid(&init_user_ns, iattr->ia_gid);
-+}
-+
-+static inline void ia_uid_write(struct iattr *iattr, uid_t uid)
-+{
-+	iattr->ia_uid = make_kuid(&init_user_ns, uid);
-+}
-+
-+static inline void ia_gid_write(struct iattr *iattr, gid_t gid)
-+{
-+	iattr->ia_gid = make_kgid(&init_user_ns, gid);
-+}
-+#else
-+static inline uid_t ia_uid_read(const struct iattr *iattr)
-+{
-+	return iattr->ia_uid;
-+}
-+
-+static inline gid_t ia_gid_read(const struct iattr *inode)
-+{
-+	return iattr->ia_gid;
-+}
-+
-+static inline void ia_uid_write(struct iattr *iattr, uid_t uid)
-+{
-+	iattr->ia_uid = uid;
-+}
-+
-+static inline void ia_gid_write(struct iattr *iattr, gid_t gid)
-+{
-+	iattr->ia_gid = gid;
-+}
-+#endif
-+
-+void yaffs_load_attribs(struct yaffs_obj *obj, struct yaffs_obj_hdr *oh)
-+{
-+	obj->yst_uid = oh->yst_uid;
-+	obj->yst_gid = oh->yst_gid;
-+	obj->yst_atime = oh->yst_atime;
-+	obj->yst_mtime = oh->yst_mtime;
-+	obj->yst_ctime = oh->yst_ctime;
-+	obj->yst_rdev = oh->yst_rdev;
-+}
-+
-+void yaffs_load_attribs_oh(struct yaffs_obj_hdr *oh, struct yaffs_obj *obj)
-+{
-+	oh->yst_uid = obj->yst_uid;
-+	oh->yst_gid = obj->yst_gid;
-+	oh->yst_atime = obj->yst_atime;
-+	oh->yst_mtime = obj->yst_mtime;
-+	oh->yst_ctime = obj->yst_ctime;
-+	oh->yst_rdev = obj->yst_rdev;
-+
-+}
-+
-+void yaffs_load_current_time(struct yaffs_obj *obj, int do_a, int do_c)
-+{
-+	obj->yst_mtime = Y_CURRENT_TIME;
-+	if (do_a)
-+		obj->yst_atime = obj->yst_mtime;
-+	if (do_c)
-+		obj->yst_ctime = obj->yst_mtime;
-+}
-+
-+void yaffs_attribs_init(struct yaffs_obj *obj, u32 gid, u32 uid, u32 rdev)
-+{
-+	yaffs_load_current_time(obj, 1, 1);
-+	obj->yst_rdev = rdev;
-+	obj->yst_uid = uid;
-+	obj->yst_gid = gid;
-+}
-+
-+static loff_t yaffs_get_file_size(struct yaffs_obj *obj)
-+{
-+	YCHAR *alias = NULL;
-+	obj = yaffs_get_equivalent_obj(obj);
-+
-+	switch (obj->variant_type) {
-+	case YAFFS_OBJECT_TYPE_FILE:
-+		return obj->variant.file_variant.file_size;
-+	case YAFFS_OBJECT_TYPE_SYMLINK:
-+		alias = obj->variant.symlink_variant.alias;
-+		if (!alias)
-+			return 0;
-+		return strnlen(alias, YAFFS_MAX_ALIAS_LENGTH);
-+	default:
-+		return 0;
-+	}
-+}
-+
-+int yaffs_set_attribs(struct yaffs_obj *obj, struct iattr *attr)
-+{
-+	unsigned int valid = attr->ia_valid;
-+
-+	if (valid & ATTR_MODE)
-+		obj->yst_mode = attr->ia_mode;
-+	if (valid & ATTR_UID)
-+		obj->yst_uid =  ia_uid_read(attr);
-+	if (valid & ATTR_GID)
-+		obj->yst_gid =  ia_gid_read(attr);
-+
-+	if (valid & ATTR_ATIME)
-+		obj->yst_atime = Y_TIME_CONVERT(attr->ia_atime);
-+	if (valid & ATTR_CTIME)
-+		obj->yst_ctime = Y_TIME_CONVERT(attr->ia_ctime);
-+	if (valid & ATTR_MTIME)
-+		obj->yst_mtime = Y_TIME_CONVERT(attr->ia_mtime);
-+
-+	if (valid & ATTR_SIZE)
-+		yaffs_resize_file(obj, attr->ia_size);
-+
-+	yaffs_update_oh(obj, NULL, 1, 0, 0, NULL);
-+
-+	return YAFFS_OK;
-+
-+}
-+
-+int yaffs_get_attribs(struct yaffs_obj *obj, struct iattr *attr)
-+{
-+	unsigned int valid = 0;
-+
-+	attr->ia_mode = obj->yst_mode;
-+	valid |= ATTR_MODE;
-+	ia_uid_write(attr, obj->yst_uid);
-+	valid |= ATTR_UID;
-+	ia_gid_write(attr, obj->yst_gid);
-+	valid |= ATTR_GID;
-+
-+	Y_TIME_CONVERT(attr->ia_atime) = obj->yst_atime;
-+	valid |= ATTR_ATIME;
-+	Y_TIME_CONVERT(attr->ia_ctime) = obj->yst_ctime;
-+	valid |= ATTR_CTIME;
-+	Y_TIME_CONVERT(attr->ia_mtime) = obj->yst_mtime;
-+	valid |= ATTR_MTIME;
-+
-+	attr->ia_size = yaffs_get_file_size(obj);
-+	valid |= ATTR_SIZE;
-+
-+	attr->ia_valid = valid;
-+
-+	return YAFFS_OK;
-+}
-diff -Nur linux-3.10.40.orig/fs/yaffs2/yaffs_attribs.h linux-3.10.40/fs/yaffs2/yaffs_attribs.h
---- linux-3.10.40.orig/fs/yaffs2/yaffs_attribs.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.10.40/fs/yaffs2/yaffs_attribs.h	2014-05-17 12:48:10.000000000 +0200
-@@ -0,0 +1,28 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2011 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+#ifndef __YAFFS_ATTRIBS_H__
-+#define __YAFFS_ATTRIBS_H__
-+
-+#include "yaffs_guts.h"
-+
-+void yaffs_load_attribs(struct yaffs_obj *obj, struct yaffs_obj_hdr *oh);
-+void yaffs_load_attribs_oh(struct yaffs_obj_hdr *oh, struct yaffs_obj *obj);
-+void yaffs_attribs_init(struct yaffs_obj *obj, u32 gid, u32 uid, u32 rdev);
-+void yaffs_load_current_time(struct yaffs_obj *obj, int do_a, int do_c);
-+int yaffs_set_attribs(struct yaffs_obj *obj, struct iattr *attr);
-+int yaffs_get_attribs(struct yaffs_obj *obj, struct iattr *attr);
-+
-+#endif
-diff -Nur linux-3.10.40.orig/fs/yaffs2/yaffs_bitmap.c linux-3.10.40/fs/yaffs2/yaffs_bitmap.c
---- linux-3.10.40.orig/fs/yaffs2/yaffs_bitmap.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.10.40/fs/yaffs2/yaffs_bitmap.c	2014-05-17 12:48:10.000000000 +0200
-@@ -0,0 +1,97 @@
-+/*
-+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2011 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+#include "yaffs_bitmap.h"
-+#include "yaffs_trace.h"
-+/*
-+ * Chunk bitmap manipulations
-+ */
-+
-+static inline u8 *yaffs_block_bits(struct yaffs_dev *dev, int blk)
-+{
-+	if (blk < dev->internal_start_block || blk > dev->internal_end_block) {
-+		yaffs_trace(YAFFS_TRACE_ERROR,
-+			"BlockBits block %d is not valid",
-+			blk);
-+		BUG();
-+	}
-+	return dev->chunk_bits +
-+	    (dev->chunk_bit_stride * (blk - dev->internal_start_block));
-+}
-+
-+void yaffs_verify_chunk_bit_id(struct yaffs_dev *dev, int blk, int chunk)
-+{
-+	if (blk < dev->internal_start_block || blk > dev->internal_end_block ||
-+	    chunk < 0 || chunk >= dev->param.chunks_per_block) {
-+		yaffs_trace(YAFFS_TRACE_ERROR,
-+			"Chunk Id (%d:%d) invalid",
-+			blk, chunk);
-+		BUG();
-+	}
-+}
-+
-+void yaffs_clear_chunk_bits(struct yaffs_dev *dev, int blk)
-+{
-+	u8 *blk_bits = yaffs_block_bits(dev, blk);
-+
-+	memset(blk_bits, 0, dev->chunk_bit_stride);
-+}
-+
-+void yaffs_clear_chunk_bit(struct yaffs_dev *dev, int blk, int chunk)
-+{
-+	u8 *blk_bits = yaffs_block_bits(dev, blk);
-+
-+	yaffs_verify_chunk_bit_id(dev, blk, chunk);
-+	blk_bits[chunk / 8] &= ~(1 << (chunk & 7));
-+}
-+
-+void yaffs_set_chunk_bit(struct yaffs_dev *dev, int blk, int chunk)
-+{
-+	u8 *blk_bits = yaffs_block_bits(dev, blk);
-+
-+	yaffs_verify_chunk_bit_id(dev, blk, chunk);
-+	blk_bits[chunk / 8] |= (1 << (chunk & 7));
-+}
-+
-+int yaffs_check_chunk_bit(struct yaffs_dev *dev, int blk, int chunk)
-+{
-+	u8 *blk_bits = yaffs_block_bits(dev, blk);
-+
-+	yaffs_verify_chunk_bit_id(dev, blk, chunk);
-+	return (blk_bits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0;
-+}
-+
-+int yaffs_still_some_chunks(struct yaffs_dev *dev, int blk)
-+{
-+	u8 *blk_bits = yaffs_block_bits(dev, blk);
-+	int i;
-+
-+	for (i = 0; i < dev->chunk_bit_stride; i++) {
-+		if (*blk_bits)
-+			return 1;
-+		blk_bits++;
-+	}
-+	return 0;
-+}
-+
-+int yaffs_count_chunk_bits(struct yaffs_dev *dev, int blk)
-+{
-+	u8 *blk_bits = yaffs_block_bits(dev, blk);
-+	int i;
-+	int n = 0;
-+
-+	for (i = 0; i < dev->chunk_bit_stride; i++, blk_bits++)
-+		n += hweight8(*blk_bits);
-+
-+	return n;
-+}
-diff -Nur linux-3.10.40.orig/fs/yaffs2/yaffs_bitmap.h linux-3.10.40/fs/yaffs2/yaffs_bitmap.h
---- linux-3.10.40.orig/fs/yaffs2/yaffs_bitmap.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.10.40/fs/yaffs2/yaffs_bitmap.h	2014-05-17 12:48:10.000000000 +0200
-@@ -0,0 +1,33 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2011 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+/*
-+ * Chunk bitmap manipulations
-+ */
-+
-+#ifndef __YAFFS_BITMAP_H__
-+#define __YAFFS_BITMAP_H__
-+
-+#include "yaffs_guts.h"
-+
-+void yaffs_verify_chunk_bit_id(struct yaffs_dev *dev, int blk, int chunk);
-+void yaffs_clear_chunk_bits(struct yaffs_dev *dev, int blk);
-+void yaffs_clear_chunk_bit(struct yaffs_dev *dev, int blk, int chunk);
-+void yaffs_set_chunk_bit(struct yaffs_dev *dev, int blk, int chunk);
-+int yaffs_check_chunk_bit(struct yaffs_dev *dev, int blk, int chunk);
-+int yaffs_still_some_chunks(struct yaffs_dev *dev, int blk);
-+int yaffs_count_chunk_bits(struct yaffs_dev *dev, int blk);
-+
-+#endif
-diff -Nur linux-3.10.40.orig/fs/yaffs2/yaffs_checkptrw.c linux-3.10.40/fs/yaffs2/yaffs_checkptrw.c
---- linux-3.10.40.orig/fs/yaffs2/yaffs_checkptrw.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.10.40/fs/yaffs2/yaffs_checkptrw.c	2014-05-17 12:48:10.000000000 +0200
-@@ -0,0 +1,474 @@
-+/*
-+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2011 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+#include "yaffs_checkptrw.h"
-+#include "yaffs_getblockinfo.h"
-+
-+struct yaffs_checkpt_chunk_hdr {
-+	int version;
-+	int seq;
-+	u32 sum;
-+	u32 xor;
-+} ;
-+
-+
-+static int apply_chunk_offset(struct yaffs_dev *dev, int chunk)
-+{
-+	return chunk - dev->chunk_offset;
-+}
-+
-+static int apply_block_offset(struct yaffs_dev *dev, int block)
-+{
-+	return block - dev->block_offset;
-+}
-+
-+static void yaffs2_checkpt_init_chunk_hdr(struct yaffs_dev *dev)
-+{
-+	struct yaffs_checkpt_chunk_hdr hdr;
-+
-+	hdr.version = YAFFS_CHECKPOINT_VERSION;
-+	hdr.seq = dev->checkpt_page_seq;
-+	hdr.sum = dev->checkpt_sum;
-+	hdr.xor = dev->checkpt_xor;
-+
-+	dev->checkpt_byte_offs = sizeof(hdr);
-+
-+	memcpy(dev->checkpt_buffer, &hdr, sizeof(hdr));
-+}
-+
-+static int yaffs2_checkpt_check_chunk_hdr(struct yaffs_dev *dev)
-+{
-+	struct yaffs_checkpt_chunk_hdr hdr;
-+
-+	memcpy(&hdr, dev->checkpt_buffer, sizeof(hdr));
-+
-+	dev->checkpt_byte_offs = sizeof(hdr);
-+
-+	return hdr.version == YAFFS_CHECKPOINT_VERSION &&
-+		hdr.seq == dev->checkpt_page_seq &&
-+		hdr.sum == dev->checkpt_sum &&
-+		hdr.xor == dev->checkpt_xor;
-+}
-+
-+static int yaffs2_checkpt_space_ok(struct yaffs_dev *dev)
-+{
-+	int blocks_avail = dev->n_erased_blocks - dev->param.n_reserved_blocks;
-+
-+	yaffs_trace(YAFFS_TRACE_CHECKPOINT,
-+		"checkpt blocks_avail = %d", blocks_avail);
-+
-+	return (blocks_avail <= 0) ? 0 : 1;
-+}
-+
-+static int yaffs_checkpt_erase(struct yaffs_dev *dev)
-+{
-+	int i;
-+
-+	if (!dev->drv.drv_erase_fn)
-+		return 0;
-+	yaffs_trace(YAFFS_TRACE_CHECKPOINT,
-+		"checking blocks %d to %d",
-+		dev->internal_start_block, dev->internal_end_block);
-+
-+	for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) {
-+		struct yaffs_block_info *bi = yaffs_get_block_info(dev, i);
-+		int offset_i = apply_block_offset(dev, i);
-+		int result;
-+
-+		if (bi->block_state == YAFFS_BLOCK_STATE_CHECKPOINT) {
-+			yaffs_trace(YAFFS_TRACE_CHECKPOINT,
-+			"erasing checkpt block %d", i);
-+
-+			dev->n_erasures++;<