kernel: update yaffs code to the latest version

Use the latest version of the yaffs code. Fetched from the
yaffs2 git tree and it is based on the following commit:

  commit 7e5cf0fa1b694f835cdc184a8395b229fa29f9ae
  Author: Charles Manning <cdhmanning@gmail.com>
  Date:   Thu Aug 7 11:25:05 2014 +1200

    yaffs-direct: Basic tests. Add lpthread flag for background gc support

    Signed-off-by: Charles Manning <cdhmanning@gmail.com>

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@45188 3c298f89-4303-0410-b956-a3cf2f4a3e73

8 files changed, 71 insertions, 376 deletions

diff --git a/target/linux/generic/patches-3.18/501-yaffs-3.5-convert-to-use-kuid_t-kgid_t.patch b/target/linux/generic/patches-3.18/501-yaffs-3.5-convert-to-use-kuid_t-kgid_t.patch
deleted file mode 100644
index c1f7367dd8..0000000000
--- a/target/linux/generic/patches-3.18/501-yaffs-3.5-convert-to-use-kuid_t-kgid_t.patch
+++ /dev/null
@@ -1,155 +0,0 @@
---- a/fs/yaffs2/yaffs_vfs.c
-+++ b/fs/yaffs2/yaffs_vfs.c
-@@ -329,6 +329,33 @@ static int yaffs_readpage(struct file *f
- 	return ret;
- }
- 
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 5, 0))
-+#define YCRED_FSUID()	from_kuid(&init_user_ns, current_fsuid())
-+#define YCRED_FSGID()	from_kgid(&init_user_ns, current_fsgid())
-+#else
-+#define YCRED_FSUID()	YCRED(current)->fsuid
-+#define YCRED_FSGID()	YCRED(current)->fsgid
-+
-+static inline uid_t i_uid_read(const struct inode *inode)
-+{
-+	return inode->i_uid;
-+}
-+
-+static inline gid_t i_gid_read(const struct inode *inode)
-+{
-+	return inode->i_gid;
-+}
-+
-+static inline void i_uid_write(struct inode *inode, uid_t uid)
-+{
-+	inode->i_uid = uid;
-+}
-+
-+static inline void i_gid_write(struct inode *inode, gid_t gid)
-+{
-+	inode->i_gid = gid;
-+}
-+#endif
- 
- static void yaffs_set_super_dirty_val(struct yaffs_dev *dev, int val)
- {
-@@ -1225,9 +1252,9 @@ static int yaffs_mknod(struct inode *dir
- 	struct yaffs_obj *parent = yaffs_inode_to_obj(dir);
- 
- 	int error = -ENOSPC;
--	uid_t uid = YCRED(current)->fsuid;
-+	uid_t uid = YCRED_FSUID();
- 	gid_t gid =
--	    (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
-+	    (dir->i_mode & S_ISGID) ? i_gid_read(dir) : YCRED_FSGID();
- 
- 	if ((dir->i_mode & S_ISGID) && S_ISDIR(mode))
- 		mode |= S_ISGID;
-@@ -1424,9 +1451,9 @@ static int yaffs_symlink(struct inode *d
- {
- 	struct yaffs_obj *obj;
- 	struct yaffs_dev *dev;
--	uid_t uid = YCRED(current)->fsuid;
-+	uid_t uid = YCRED_FSUID();
- 	gid_t gid =
--	    (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
-+	    (dir->i_mode & S_ISGID) ? i_gid_read(dir) : YCRED_FSGID();
- 
- 	yaffs_trace(YAFFS_TRACE_OS, "yaffs_symlink");
- 
-@@ -1829,8 +1856,8 @@ static void yaffs_fill_inode_from_obj(st
- 
- 		inode->i_ino = obj->obj_id;
- 		inode->i_mode = obj->yst_mode;
--		inode->i_uid = obj->yst_uid;
--		inode->i_gid = obj->yst_gid;
-+		i_uid_write(inode, obj->yst_uid);
-+		i_gid_write(inode, obj->yst_gid);
- #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
- 		inode->i_blksize = inode->i_sb->s_blocksize;
- #endif
-@@ -1856,7 +1883,7 @@ static void yaffs_fill_inode_from_obj(st
- 
- 		yaffs_trace(YAFFS_TRACE_OS,
- 			"yaffs_fill_inode mode %x uid %d gid %d size %lld count %d",
--			inode->i_mode, inode->i_uid, inode->i_gid,
-+			inode->i_mode, i_uid_read(inode), i_gid_read(inode),
- 			inode->i_size, atomic_read(&inode->i_count));
- 
- 		switch (obj->yst_mode & S_IFMT) {
---- a/fs/yaffs2/yaffs_attribs.c
-+++ b/fs/yaffs2/yaffs_attribs.c
-@@ -14,6 +14,48 @@
- #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;
-@@ -77,9 +119,9 @@ int yaffs_set_attribs(struct yaffs_obj *
- 	if (valid & ATTR_MODE)
- 		obj->yst_mode = attr->ia_mode;
- 	if (valid & ATTR_UID)
--		obj->yst_uid = attr->ia_uid;
-+		obj->yst_uid =  ia_uid_read(attr);
- 	if (valid & ATTR_GID)
--		obj->yst_gid = attr->ia_gid;
-+		obj->yst_gid =  ia_gid_read(attr);
- 
- 	if (valid & ATTR_ATIME)
- 		obj->yst_atime = Y_TIME_CONVERT(attr->ia_atime);
-@@ -103,9 +145,9 @@ int yaffs_get_attribs(struct yaffs_obj *
- 
- 	attr->ia_mode = obj->yst_mode;
- 	valid |= ATTR_MODE;
--	attr->ia_uid = obj->yst_uid;
-+	ia_uid_write(attr, obj->yst_uid);
- 	valid |= ATTR_UID;
--	attr->ia_gid = obj->yst_gid;
-+	ia_gid_write(attr, obj->yst_gid);
- 	valid |= ATTR_GID;
- 
- 	Y_TIME_CONVERT(attr->ia_atime) = obj->yst_atime;
diff --git a/target/linux/generic/patches-3.18/501-yaffs-add-missing-flush-arguments.patch b/target/linux/generic/patches-3.18/501-yaffs-add-missing-flush-arguments.patch
new file mode 100644
index 0000000000..d5ccc3e81e
--- /dev/null
+++ b/target/linux/generic/patches-3.18/501-yaffs-add-missing-flush-arguments.patch
@@ -0,0 +1,38 @@
+--- a/fs/yaffs2/yaffs_vfs.c
++++ b/fs/yaffs2/yaffs_vfs.c
+@@ -738,7 +738,7 @@ static int yaffs_file_flush(struct file
+ 
+ 	yaffs_gross_lock(dev);
+ 
+-	yaffs_flush_file(obj, 1, 0);
++	yaffs_flush_file(obj, 1, 0, 1);
+ 
+ 	yaffs_gross_unlock(dev);
+ 
+@@ -768,7 +768,7 @@ static int yaffs_sync_object(struct file
+ 	yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC,
+ 		"yaffs_sync_object");
+ 	yaffs_gross_lock(dev);
+-	yaffs_flush_file(obj, 1, datasync);
++	yaffs_flush_file(obj, 1, datasync, 1);
+ 	yaffs_gross_unlock(dev);
+ 	return 0;
+ }
+@@ -2187,7 +2187,7 @@ static void yaffs_flush_inodes(struct su
+ 			yaffs_trace(YAFFS_TRACE_OS,
+ 				"flushing obj %d",
+ 				obj->obj_id);
+-			yaffs_flush_file(obj, 1, 0);
++			yaffs_flush_file(obj, 1, 0, 1);
+ 		}
+ 	}
+ }
+@@ -2200,7 +2200,7 @@ static void yaffs_flush_super(struct sup
+ 
+ 	yaffs_flush_inodes(sb);
+ 	yaffs_update_dirty_dirs(dev);
+-	yaffs_flush_whole_cache(dev);
++	yaffs_flush_whole_cache(dev, 1);
+ 	if (do_checkpoint)
+ 		yaffs_checkpoint_save(dev);
+ }
diff --git a/target/linux/generic/patches-3.18/502-yaffs-3.10-disable-proc-entry.patch b/target/linux/generic/patches-3.18/502-yaffs-3.10-disable-proc-entry.patch
deleted file mode 100644
index 5b73d3898b..0000000000
--- a/target/linux/generic/patches-3.18/502-yaffs-3.10-disable-proc-entry.patch
+++ /dev/null
@@ -1,44 +0,0 @@
---- a/fs/yaffs2/yaffs_vfs.c
-+++ b/fs/yaffs2/yaffs_vfs.c
-@@ -3025,6 +3025,7 @@ static DECLARE_FSTYPE(yaffs2_fs_type, "y
- #endif
- 
- 
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 9, 0))
- static struct proc_dir_entry *my_proc_entry;
- 
- static char *yaffs_dump_dev_part0(char *buf, struct yaffs_dev *dev)
-@@ -3398,6 +3399,7 @@ static int yaffs_proc_write(struct file
- 		return yaffs_proc_debug_write(file, buf, count, data);
- 	return yaffs_proc_write_trace_options(file, buf, count, data);
- }
-+#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(3, 9, 0)) */
- 
- /* Stuff to handle installation of file systems */
- struct file_system_to_install {
-@@ -3421,6 +3423,7 @@ static int __init init_yaffs_fs(void)
- 
- 	mutex_init(&yaffs_context_lock);
- 
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 9, 0))
- 	/* Install the proc_fs entries */
- 	my_proc_entry = create_proc_entry("yaffs",
- 					  S_IRUGO | S_IFREG, YPROC_ROOT);
-@@ -3432,6 +3435,7 @@ static int __init init_yaffs_fs(void)
- 	} else {
- 		return -ENOMEM;
-         }
-+#endif
- 
- 	/* Now add the file system entries */
- 
-@@ -3468,7 +3472,9 @@ static void __exit exit_yaffs_fs(void)
- 	yaffs_trace(YAFFS_TRACE_ALWAYS,
- 		"yaffs built " __DATE__ " " __TIME__ " removing.");
- 
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 9, 0))
- 	remove_proc_entry("yaffs", YPROC_ROOT);
-+#endif
- 
- 	fsinst = fs_to_install;
- 
diff --git a/target/linux/generic/patches-3.18/504-yaffs-fix-compat-tags-handling.patch b/target/linux/generic/patches-3.18/502-yaffs-fix-compat-tags-handling.patch
index a18cf6fd7b..a18cf6fd7b 100644
--- a/target/linux/generic/patches-3.18/504-yaffs-fix-compat-tags-handling.patch
+++ b/target/linux/generic/patches-3.18/502-yaffs-fix-compat-tags-handling.patch
diff --git a/target/linux/generic/patches-3.18/503-yaffs-3.12-convert-readdir-to-iterate.patch b/target/linux/generic/patches-3.18/503-yaffs-3.12-convert-readdir-to-iterate.patch
deleted file mode 100644
index 586c141e0a..0000000000
--- a/target/linux/generic/patches-3.18/503-yaffs-3.12-convert-readdir-to-iterate.patch
+++ /dev/null
@@ -1,129 +0,0 @@
---- a/fs/yaffs2/yaffs_vfs.c
-+++ b/fs/yaffs2/yaffs_vfs.c
-@@ -1701,6 +1701,110 @@ static void yaffs_remove_obj_callback(st
- 
- /*-----------------------------------------------------------------*/
- 
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 12, 0))
-+static int yaffs_readdir(struct file *file, struct dir_context *ctx)
-+{
-+	struct yaffs_obj *obj;
-+	struct yaffs_dev *dev;
-+	struct yaffs_search_context *sc;
-+	struct inode *inode = file->f_dentry->d_inode;
-+	unsigned long offset, curoffs;
-+	struct yaffs_obj *l;
-+	int ret_val = 0;
-+
-+	char name[YAFFS_MAX_NAME_LENGTH + 1];
-+
-+	obj = yaffs_dentry_to_obj(file->f_dentry);
-+	dev = obj->my_dev;
-+
-+	yaffs_gross_lock(dev);
-+
-+	yaffs_dev_to_lc(dev)->readdir_process = current;
-+
-+	offset = ctx->pos;
-+
-+	sc = yaffs_new_search(obj);
-+	if (!sc) {
-+		ret_val = -ENOMEM;
-+		goto out;
-+	}
-+
-+	yaffs_trace(YAFFS_TRACE_OS,
-+		"yaffs_readdir: starting at %d", (int)offset);
-+
-+	if (offset == 0) {
-+		yaffs_trace(YAFFS_TRACE_OS,
-+			"yaffs_readdir: entry . ino %d",
-+			(int)inode->i_ino);
-+		yaffs_gross_unlock(dev);
-+		if (!dir_emit_dot(file, ctx)) {
-+			yaffs_gross_lock(dev);
-+			goto out;
-+		}
-+		yaffs_gross_lock(dev);
-+		offset++;
-+		ctx->pos++;
-+	}
-+	if (offset == 1) {
-+		yaffs_trace(YAFFS_TRACE_OS,
-+			"yaffs_readdir: entry .. ino %d",
-+			(int)file->f_dentry->d_parent->d_inode->i_ino);
-+		yaffs_gross_unlock(dev);
-+		if (!dir_emit_dotdot(file, ctx)) {
-+			yaffs_gross_lock(dev);
-+			goto out;
-+		}
-+		yaffs_gross_lock(dev);
-+		offset++;
-+		ctx->pos++;
-+	}
-+
-+	curoffs = 1;
-+
-+	/* If the directory has changed since the open or last call to
-+	   readdir, rewind to after the 2 canned entries. */
-+	if (file->f_version != inode->i_version) {
-+		offset = 2;
-+		ctx->pos = offset;
-+		file->f_version = inode->i_version;
-+	}
-+
-+	while (sc->next_return) {
-+		curoffs++;
-+		l = sc->next_return;
-+		if (curoffs >= offset) {
-+			int this_inode = yaffs_get_obj_inode(l);
-+			int this_type = yaffs_get_obj_type(l);
-+
-+			yaffs_get_obj_name(l, name, YAFFS_MAX_NAME_LENGTH + 1);
-+			yaffs_trace(YAFFS_TRACE_OS,
-+				"yaffs_readdir: %s inode %d",
-+				name, yaffs_get_obj_inode(l));
-+
-+			yaffs_gross_unlock(dev);
-+
-+			if (!dir_emit(ctx, name, strlen(name),
-+				      this_inode, this_type) < 0) {
-+				yaffs_gross_lock(dev);
-+				goto out;
-+			}
-+
-+			yaffs_gross_lock(dev);
-+
-+			offset++;
-+			ctx->pos++;
-+		}
-+		yaffs_search_advance(sc);
-+	}
-+
-+out:
-+	yaffs_search_end(sc);
-+	yaffs_dev_to_lc(dev)->readdir_process = NULL;
-+	yaffs_gross_unlock(dev);
-+
-+	return ret_val;
-+}
-+#else
- static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir)
- {
- 	struct yaffs_obj *obj;
-@@ -1807,10 +1911,15 @@ out:
- 
- 	return ret_val;
- }
-+#endif
- 
- static const struct file_operations yaffs_dir_operations = {
- 	.read = generic_read_dir,
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 12, 0))
-+	.iterate = yaffs_readdir,
-+#else
- 	.readdir = yaffs_readdir,
-+#endif
- 	.fsync = yaffs_sync_object,
- 	.llseek = generic_file_llseek,
- };
diff --git a/target/linux/generic/patches-3.18/503-yaffs-add-tags-9bytes-mount-option.patch b/target/linux/generic/patches-3.18/503-yaffs-add-tags-9bytes-mount-option.patch
index 4858519ca1..9ecaa72832 100644
--- a/target/linux/generic/patches-3.18/503-yaffs-add-tags-9bytes-mount-option.patch
+++ b/target/linux/generic/patches-3.18/503-yaffs-add-tags-9bytes-mount-option.patch
@@ -4,7 +4,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
 ---
 --- a/fs/yaffs2/yaffs_vfs.c
 +++ b/fs/yaffs2/yaffs_vfs.c
-@@ -2634,6 +2634,7 @@ static const struct super_operations yaf
+@@ -2605,6 +2605,7 @@ static const struct super_operations yaf
  
  struct yaffs_options {
  	int inband_tags;
@@ -12,7 +12,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
  	int skip_checkpoint_read;
  	int skip_checkpoint_write;
  	int no_cache;
-@@ -2673,6 +2674,8 @@ static int yaffs_parse_options(struct ya
+@@ -2644,6 +2645,8 @@ static int yaffs_parse_options(struct ya
  
  		if (!strcmp(cur_opt, "inband-tags")) {
  			options->inband_tags = 1;
@@ -21,7 +21,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
  		} else if (!strcmp(cur_opt, "tags-ecc-off")) {
  			options->tags_ecc_on = 0;
  			options->tags_ecc_overridden = 1;
-@@ -2746,7 +2749,6 @@ static struct super_block *yaffs_interna
+@@ -2717,7 +2720,6 @@ static struct super_block *yaffs_interna
  	struct yaffs_param *param;
  
  	int read_only = 0;
@@ -29,7 +29,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
  
  	struct yaffs_options options;
  
-@@ -2786,6 +2788,9 @@ static struct super_block *yaffs_interna
+@@ -2757,6 +2759,9 @@ static struct super_block *yaffs_interna
  
  	memset(&options, 0, sizeof(options));
  
@@ -39,7 +39,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
  	if (yaffs_parse_options(&options, data_str)) {
  		/* Option parsing failed */
  		return NULL;
-@@ -2819,17 +2824,22 @@ static struct super_block *yaffs_interna
+@@ -2790,17 +2795,22 @@ static struct super_block *yaffs_interna
  	}
  
  	/* Added NCB 26/5/2006 for completeness */
@@ -68,7 +68,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
  		return NULL;
  
  	/* OK, so if we got here, we have an MTD that's NAND and looks
-@@ -2890,7 +2900,8 @@ static struct super_block *yaffs_interna
+@@ -2857,7 +2867,8 @@ static struct super_block *yaffs_interna
  
  	param->n_reserved_blocks = 5;
  	param->n_caches = (options.no_cache) ? 0 : 10;
@@ -80,15 +80,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
  	if (options.lazy_loading_overridden)
 --- a/fs/yaffs2/yaffs_mtdif.c
 +++ b/fs/yaffs2/yaffs_mtdif.c
-@@ -16,6 +16,7 @@
- #include "yaffs_mtdif.h"
- 
- #include "linux/mtd/mtd.h"
-+#include "uapi/linux/major.h"
- #include "linux/types.h"
- #include "linux/time.h"
- #include "linux/mtd/nand.h"
-@@ -276,7 +277,8 @@ struct mtd_info * yaffs_get_mtd_device(d
+@@ -278,7 +278,8 @@ struct mtd_info * yaffs_get_mtd_device(d
  	return mtd;
  }
  
@@ -98,7 +90,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
  {
  	if (yaffs_version == 2) {
  		if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE ||
-@@ -295,6 +297,12 @@ int yaffs_verify_mtd(struct mtd_info *mt
+@@ -297,6 +298,12 @@ int yaffs_verify_mtd(struct mtd_info *mt
  			);
  			return -1;
  		}
diff --git a/target/linux/generic/patches-3.18/504-yaffs-3.16-new-fops.patch b/target/linux/generic/patches-3.18/504-yaffs-3.16-new-fops.patch
new file mode 100644
index 0000000000..11c6da0516
--- /dev/null
+++ b/target/linux/generic/patches-3.18/504-yaffs-3.16-new-fops.patch
@@ -0,0 +1,25 @@
+--- a/fs/yaffs2/yaffs_vfs.c
++++ b/fs/yaffs2/yaffs_vfs.c
+@@ -774,7 +774,21 @@ static int yaffs_sync_object(struct file
+ }
+ 
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22))
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 16, 0))
++static const struct file_operations yaffs_file_operations = {
++	.read = new_sync_read,
++	.read_iter = generic_file_read_iter,
++	.write = new_sync_write,
++	.write_iter = generic_file_write_iter,
++	.mmap = generic_file_mmap,
++	.flush = yaffs_file_flush,
++	.fsync = yaffs_sync_object,
++	.splice_read = generic_file_splice_read,
++	.splice_write = iter_file_splice_write,
++	.llseek = generic_file_llseek,
++};
++
++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22))
+ static const struct file_operations yaffs_file_operations = {
+ 	.read = do_sync_read,
+ 	.write = do_sync_write,
diff --git a/target/linux/generic/patches-3.18/505-yaffs-3.16-new-fops.patch b/target/linux/generic/patches-3.18/505-yaffs-3.16-new-fops.patch
deleted file mode 100644
index be88ab9525..0000000000
--- a/target/linux/generic/patches-3.18/505-yaffs-3.16-new-fops.patch
+++ /dev/null
@@ -1,32 +0,0 @@
---- a/fs/yaffs2/yaffs_vfs.c
-+++ b/fs/yaffs2/yaffs_vfs.c
-@@ -794,15 +794,15 @@ static int yaffs_sync_object(struct file
- 
- #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22))
- static const struct file_operations yaffs_file_operations = {
--	.read = do_sync_read,
--	.write = do_sync_write,
--	.aio_read = generic_file_aio_read,
--	.aio_write = generic_file_aio_write,
-+	.read = new_sync_read,
-+	.write = new_sync_write,
-+	.read_iter = generic_file_read_iter,
-+	.write_iter = generic_file_write_iter,
- 	.mmap = generic_file_mmap,
- 	.flush = yaffs_file_flush,
- 	.fsync = yaffs_sync_object,
- 	.splice_read = generic_file_splice_read,
--	.splice_write = generic_file_splice_write,
-+	.splice_write = iter_file_splice_write,
- 	.llseek = generic_file_llseek,
- };
- 
-@@ -1050,7 +1050,7 @@ static int yaffs_readlink(struct dentry
- 	if (!alias)
- 		return -ENOMEM;
- 
--	ret = vfs_readlink(dentry, buffer, buflen, alias);
-+	ret = readlink_copy(buffer, buflen, alias);
- 	kfree(alias);
- 	return ret;
- }