add the addon patches, make mptcp visible in the kernel config menu

author: Waldemar Brodkorb <wbx@openadk.org> 2014-05-26 17:22:37 +0200
committer: Waldemar Brodkorb <wbx@openadk.org> 2014-05-26 17:22:37 +0200
commit: 4494ab6d0149f809f5f42b39807ee92bfe3ba1d0 (patch)
tree: 28ab19b02dc46e0746b2456e16d09404e7a53e24
parent: adf710e4401f110a7e124bec5d3230b9be3902ef (diff)
7 files changed, 204859 insertions, 0 deletions
diff --git a/target/linux/config/Config.in.network b/target/linux/config/Config.in.network
index 7b40a1b6e..1c966082e 100644
--- a/target/linux/config/Config.in.network
+++ b/target/linux/config/Config.in.network
@@ -276,6 +276,14 @@ config ADK_KERNEL_BONDING
 	  Refer to <file:Documentation/networking/bonding.txt> for more
 	  information.
 
+config ADK_KERNEL_MPTCP
+	prompt "Multipath TCP support"
+	boolean
+	select ADK_KERNEL_IPV6
+	select ADK_KERNEL_ADDON_MPTCP
+	help
+	  http://www.multipath-tcp.org
+
 source target/linux/config/Config.in.sched
 source target/linux/config/Config.in.ipsec
 source target/linux/config/Config.in.ipvs
diff --git a/target/linux/patches/3.10.40/patch-yaffs2 b/target/linux/patches/3.10.40/patch-yaffs2
new file mode 100644
index 000000000..172629530
--- /dev/null
+++ b/target/linux/patches/3.10.40/patch-yaffs2
@@ -0,0 +1,16547 @@
+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++;
++
++			result = dev->drv.drv_erase_fn(dev, offset_i);
++			if(result) {
++				bi->block_state = YAFFS_BLOCK_STATE_EMPTY;
++				dev->n_erased_blocks++;
++				dev->n_free_chunks +=
++				    dev->param.chunks_per_block;
++			} else {
++				dev->drv.drv_mark_bad_fn(dev, offset_i);
++				bi->block_state = YAFFS_BLOCK_STATE_DEAD;
++			}
++		}
++	}
++
++	dev->blocks_in_checkpt = 0;
++
++	return 1;
++}
++
++static void yaffs2_chec
author	Waldemar Brodkorb <wbx@openadk.org>	2014-05-26 17:22:37 +0200
committer	Waldemar Brodkorb <wbx@openadk.org>	2014-05-26 17:22:37 +0200
commit	4494ab6d0149f809f5f42b39807ee92bfe3ba1d0 (patch)
tree	28ab19b02dc46e0746b2456e16d09404e7a53e24
parent	adf710e4401f110a7e124bec5d3230b9be3902ef (diff)