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path: root/target/linux/generic/patches-3.10/512-yaffs-3.5-convert-to-use-kuid_t-kgid_t.patch
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--- a/fs/yaffs2/yaffs_vfs_glue.c
+++ b/fs/yaffs2/yaffs_vfs_glue.c
@@ -243,11 +243,10 @@ static inline void yaffs_dec_link_count(
 }
 #endif
 
-
 #define update_dir_time(dir) do {\
 			(dir)->i_ctime = (dir)->i_mtime = CURRENT_TIME; \
 		} while(0)
-		
+
 static void yaffs_put_super(struct super_block *sb);
 
 static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
@@ -397,6 +396,33 @@ static struct address_space_operations y
 #endif
 };
 
+#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
 
 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22))
 static const struct file_operations yaffs_file_operations = {
@@ -549,7 +575,7 @@ static unsigned yaffs_gc_control_callbac
 {
 	return yaffs_gc_control;
 }
-                	                                                                                          	
+
 static void yaffs_gross_lock(yaffs_dev_t *dev)
 {
 	T(YAFFS_TRACE_LOCK, (TSTR("yaffs locking %p\n"), current));
@@ -1379,8 +1405,8 @@ 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
@@ -1406,7 +1432,7 @@ static void yaffs_fill_inode_from_obj(st
 
 		T(YAFFS_TRACE_OS,
 			(TSTR("yaffs_fill_inode mode %x uid %d gid %d size %d count %d\n"),
-			inode->i_mode, inode->i_uid, inode->i_gid,
+			inode->i_mode, i_uid_read(inode), i_gid_read(inode),
 			(int)inode->i_size, atomic_read(&inode->i_count)));
 
 		switch (obj->yst_mode & S_IFMT) {
@@ -1715,8 +1741,8 @@ static int yaffs_mknod(struct inode *dir
 	yaffs_obj_t *parent = yaffs_InodeToObject(dir);
 
 	int error = -ENOSPC;
-	uid_t uid = YCRED(current)->fsuid;
-	gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
+	uid_t uid = YCRED_FSUID();
+	gid_t gid = (dir->i_mode & S_ISGID) ? i_gid_read(dir) : YCRED_FSGID();
 
 	if ((dir->i_mode & S_ISGID) && S_ISDIR(mode))
 		mode |= S_ISGID;
@@ -1892,8 +1918,8 @@ static int yaffs_symlink(struct inode *d
 {
 	yaffs_obj_t *obj;
 	yaffs_dev_t *dev;
-	uid_t uid = YCRED(current)->fsuid;
-	gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
+	uid_t uid = YCRED_FSUID();
+	gid_t gid = (dir->i_mode & S_ISGID) ? i_gid_read(dir) : YCRED_FSGID();
 
 	T(YAFFS_TRACE_OS, (TSTR("yaffs_symlink\n")));
 
@@ -2009,7 +2035,7 @@ static int yaffs_setattr(struct dentry *
 		(TSTR("yaffs_setattr of object %d\n"),
 		yaffs_InodeToObject(inode)->obj_id));
 
-	/* Fail if a requested resize >= 2GB */		
+	/* Fail if a requested resize >= 2GB */
 	if (attr->ia_valid & ATTR_SIZE &&
 		(attr->ia_size >> 31))
 		error = -EINVAL;
@@ -2240,7 +2266,7 @@ static void yaffs_flush_inodes(struct su
 {
 	struct inode *iptr;
 	yaffs_obj_t *obj;
-	
+
 	list_for_each_entry(iptr,&sb->s_inodes, i_sb_list){
 		obj = yaffs_InodeToObject(iptr);
 		if(obj){
@@ -2254,10 +2280,10 @@ static void yaffs_flush_inodes(struct su
 
 static void yaffs_flush_super(struct super_block *sb, int do_checkpoint)
 {
-	yaffs_dev_t *dev = yaffs_SuperToDevice(sb);	
+	yaffs_dev_t *dev = yaffs_SuperToDevice(sb);
 	if(!dev)
 		return;
-	
+
 	yaffs_flush_inodes(sb);
 	yaffs_update_dirty_dirs(dev);
 	yaffs_flush_whole_cache(dev);
@@ -2325,7 +2351,7 @@ static int yaffs_do_sync_fs(struct super
  * yaffs_bg_start() launches the background thread.
  * yaffs_bg_stop() cleans up the background thread.
  *
- * NB: 
+ * NB:
  * The thread should only run after the yaffs is initialised
  * The thread should be stopped before yaffs is unmounted.
  * The thread should not do any writing while the fs is in read only.
@@ -2924,7 +2950,7 @@ static struct super_block *yaffs_interna
 
 	dev = kmalloc(sizeof(yaffs_dev_t), GFP_KERNEL);
 	context = kmalloc(sizeof(struct yaffs_LinuxContext),GFP_KERNEL);
-	
+
 	if(!dev || !context ){
 		if(dev)
 			kfree(dev);
@@ -2957,7 +2983,7 @@ static struct super_block *yaffs_interna
 #else
 	sb->u.generic_sbp = dev;
 #endif
-	
+
 	dev->driver_context = mtd;
 	param->name = mtd->name;
 
@@ -3057,7 +3083,7 @@ static struct super_block *yaffs_interna
 	param->gc_control = yaffs_gc_control_callback;
 
 	yaffs_dev_to_lc(dev)->superBlock= sb;
-	
+
 
 #ifndef CONFIG_YAFFS_DOES_ECC
 	param->use_nand_ecc = 1;
@@ -3099,10 +3125,10 @@ static struct super_block *yaffs_interna
 	T(YAFFS_TRACE_OS,
 	  (TSTR("yaffs_read_super: guts initialised %s\n"),
 	   (err == YAFFS_OK) ? "OK" : "FAILED"));
-	   
+
 	if(err == YAFFS_OK)
 		yaffs_bg_start(dev);
-		
+
 	if(!context->bgThread)
 		param->defered_dir_update = 0;
 
@@ -3345,7 +3371,7 @@ static int yaffs_proc_read(char *page,
 		buf += sprintf(buf,"\n");
 	else {
 		step-=2;
-		
+
 		mutex_lock(&yaffs_context_lock);
 
 		/* Locate and print the Nth entry.  Order N-squared but N is small. */
@@ -3362,7 +3388,7 @@ static int yaffs_proc_read(char *page,
 				buf = yaffs_dump_dev_part0(buf, dev);
 			} else
 				buf = yaffs_dump_dev_part1(buf, dev);
-			
+
 			break;
 		}
 		mutex_unlock(&yaffs_context_lock);
@@ -3389,7 +3415,7 @@ static int yaffs_stats_proc_read(char *p
 		int erasedChunks;
 
 		erasedChunks = dev->n_erased_blocks * dev->param.chunks_per_block;
-		
+
 		buf += sprintf(buf,"%d, %d, %d, %u, %u, %u, %u\n",
 				n, dev->n_free_chunks, erasedChunks,
 				dev->bg_gcs, dev->oldest_dirty_gc_count,
--- a/fs/yaffs2/yaffs_guts.c
+++ b/fs/yaffs2/yaffs_guts.c
@@ -370,7 +370,7 @@ static int yaffs_verify_chunk_written(ya
 	yaffs_ext_tags tempTags;
 	__u8 *buffer = yaffs_get_temp_buffer(dev,__LINE__);
 	int result;
-	
+
 	result = yaffs_rd_chunk_tags_nand(dev,nand_chunk,buffer,&tempTags);
 	if(memcmp(buffer,data,dev->data_bytes_per_chunk) ||
 		tempTags.obj_id != tags->obj_id ||
@@ -424,7 +424,7 @@ static int yaffs_write_new_chunk(struct
 		 * lot of checks that are most likely not needed.
 		 *
 		 * Mods to the above
-		 * If an erase check fails or the write fails we skip the 
+		 * If an erase check fails or the write fails we skip the
 		 * rest of the block.
 		 */
 
@@ -486,7 +486,7 @@ static int yaffs_write_new_chunk(struct
 }
 
 
- 
+
 /*
  * Block retiring for handling a broken block.
  */
@@ -496,7 +496,7 @@ static void yaffs_retire_block(yaffs_dev
 	yaffs_block_info_t *bi = yaffs_get_block_info(dev, flash_block);
 
 	yaffs2_checkpt_invalidate(dev);
-	
+
 	yaffs2_clear_oldest_dirty_seq(dev,bi);
 
 	if (yaffs_mark_bad(dev, flash_block) != YAFFS_OK) {
@@ -899,7 +899,7 @@ static int yaffs_find_chunk_in_group(yaf
 	for (j = 0; theChunk && j < dev->chunk_grp_size; j++) {
 		if (yaffs_check_chunk_bit(dev, theChunk / dev->param.chunks_per_block,
 				theChunk % dev->param.chunks_per_block)) {
-			
+
 			if(dev->chunk_grp_size == 1)
 				return theChunk;
 			else {
@@ -1802,7 +1802,7 @@ int yaffs_rename_obj(yaffs_obj_t *old_di
 		yaffs_update_parent(old_dir);
 		if(new_dir != old_dir)
 			yaffs_update_parent(new_dir);
-		
+
 		return result;
 	}
 	return YAFFS_FAIL;
@@ -2125,7 +2125,7 @@ static int yaffs_gc_block(yaffs_dev_t *d
 
 	if(bi->block_state == YAFFS_BLOCK_STATE_FULL)
 		bi->block_state = YAFFS_BLOCK_STATE_COLLECTING;
-	
+
 	bi->has_shrink_hdr = 0;	/* clear the flag so that the block can erase */
 
 	dev->gc_disable = 1;
@@ -2207,7 +2207,7 @@ static int yaffs_gc_block(yaffs_dev_t *d
 					 * No need to copy this, just forget about it and
 					 * fix up the object.
 					 */
-					 
+
 					/* Free chunks already includes softdeleted chunks.
 					 * How ever this chunk is going to soon be really deleted
 					 * which will increment free chunks.
@@ -2752,7 +2752,7 @@ int yaffs_put_chunk_in_file(yaffs_obj_t
 					NULL);
 	if (!tn)
 		return YAFFS_FAIL;
-	
+
 	if(!nand_chunk)
 		/* Dummy insert, bail now */
 		return YAFFS_OK;
@@ -2881,7 +2881,7 @@ void yaffs_chunk_del(yaffs_dev_t *dev, i
 			 chunk_id));
 
 	bi = yaffs_get_block_info(dev, block);
-	
+
 	yaffs2_update_oldest_dirty_seq(dev, block, bi);
 
 	T(YAFFS_TRACE_DELETION,
@@ -2966,8 +2966,8 @@ static int yaffs_wr_data_obj(yaffs_obj_t
 		(TSTR("Writing %d bytes to chunk!!!!!!!!!" TENDSTR), n_bytes));
 		YBUG();
 	}
-	
-		
+
+
 	newChunkId =
 	    yaffs_write_new_chunk(dev, buffer, &newTags,
 					      useReserve);
@@ -3795,14 +3795,14 @@ int yaffs_resize_file(yaffs_obj_t *in, l
 
 	if (new_size == oldFileSize)
 		return YAFFS_OK;
-		
+
 	if(new_size > oldFileSize){
 		yaffs2_handle_hole(in,new_size);
 		in->variant.file_variant.file_size = new_size;
 	} else {
-		/* new_size < oldFileSize */ 
+		/* new_size < oldFileSize */
 		yaffs_resize_file_down(in, new_size);
-	} 
+	}
 
 	/* Write a new object header to reflect the resize.
 	 * show we've shrunk the file, if need be
@@ -4231,7 +4231,7 @@ static void yaffs_strip_deleted_objs(yaf
  * This fixes the problem where directories might have inadvertently been deleted
  * leaving the object "hanging" without being rooted in the directory tree.
  */
- 
+
 static int yaffs_has_null_parent(yaffs_dev_t *dev, yaffs_obj_t *obj)
 {
 	return (obj == dev->del_dir ||
@@ -4262,7 +4262,7 @@ static void yaffs_fix_hanging_objs(yaffs
 			if (lh) {
 				obj = ylist_entry(lh, yaffs_obj_t, hash_link);
 				parent= obj->parent;
-				
+
 				if(yaffs_has_null_parent(dev,obj)){
 					/* These directories are not hanging */
 					hanging = 0;
@@ -4311,7 +4311,7 @@ static void yaffs_del_dir_contents(yaffs
 
 	if(dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY)
 		YBUG();
-	
+
 	ylist_for_each_safe(lh, n, &dir->variant.dir_variant.children) {
 		if (lh) {
 			obj = ylist_entry(lh, yaffs_obj_t, siblings);
@@ -4325,10 +4325,10 @@ static void yaffs_del_dir_contents(yaffs
 			/* Need to use UnlinkObject since Delete would not handle
 			 * hardlinked objects correctly.
 			 */
-			yaffs_unlink_obj(obj); 
+			yaffs_unlink_obj(obj);
 		}
 	}
-			
+
 }
 
 static void yaffs_empty_l_n_f(yaffs_dev_t *dev)
@@ -4410,7 +4410,7 @@ static void yaffs_check_obj_details_load
  * If the directory updating is defered then yaffs_update_dirty_dirs must be
  * called periodically.
  */
- 
+
 static void yaffs_update_parent(yaffs_obj_t *obj)
 {
 	yaffs_dev_t *dev;
@@ -4422,8 +4422,8 @@ static void yaffs_update_parent(yaffs_ob
 	obj->dirty = 1;
 	obj->yst_mtime = obj->yst_ctime = Y_CURRENT_TIME;
 	if(dev->param.defered_dir_update){
-		struct ylist_head *link = &obj->variant.dir_variant.dirty; 
-	
+		struct ylist_head *link = &obj->variant.dir_variant.dirty;
+
 		if(ylist_empty(link)){
 			ylist_add(link,&dev->dirty_dirs);
 			T(YAFFS_TRACE_BACKGROUND, (TSTR("Added object %d to dirty directories" TENDSTR),obj->obj_id));
@@ -4446,7 +4446,7 @@ void yaffs_update_dirty_dirs(yaffs_dev_t
 	while(!ylist_empty(&dev->dirty_dirs)){
 		link = dev->dirty_dirs.next;
 		ylist_del_init(link);
-		
+
 		dS=ylist_entry(link,yaffs_dir_s,dirty);
 		oV = ylist_entry(dS,yaffs_obj_variant,dir_variant);
 		obj = ylist_entry(oV,yaffs_obj_t,variant);
@@ -4474,7 +4474,7 @@ static void yaffs_remove_obj_from_dir(ya
 
 	ylist_del_init(&obj->siblings);
 	obj->parent = NULL;
-	
+
 	yaffs_verify_dir(parent);
 }
 
@@ -4645,7 +4645,7 @@ yaffs_obj_t *yaffs_get_equivalent_obj(ya
  * system to share files.
  *
  * These automatic unicode are stored slightly differently...
- *  - If the name can fit in the ASCII character space then they are saved as 
+ *  - If the name can fit in the ASCII character space then they are saved as
  *    ascii names as per above.
  *  - If the name needs Unicode then the name is saved in Unicode
  *    starting at oh->name[1].
@@ -4686,7 +4686,7 @@ static void yaffs_load_name_from_oh(yaff
 				asciiOhName++;
 				n--;
 			}
-		} else 
+		} else
 			yaffs_strncpy(name,ohName+1, bufferSize -1);
 	} else
 #endif
@@ -4705,7 +4705,7 @@ static void yaffs_load_oh_from_name(yaff
 
 		isAscii = 1;
 		w = name;
-	
+
 		/* Figure out if the name will fit in ascii character set */
 		while(isAscii && *w){
 			if((*w) & 0xff00)
@@ -4729,7 +4729,7 @@ static void yaffs_load_oh_from_name(yaff
 			yaffs_strncpy(ohName+1,name, YAFFS_MAX_NAME_LENGTH -2);
 		}
 	}
-	else 
+	else
 #endif
 		yaffs_strncpy(ohName,name, YAFFS_MAX_NAME_LENGTH - 1);
 
@@ -4738,12 +4738,12 @@ static void yaffs_load_oh_from_name(yaff
 int yaffs_get_obj_name(yaffs_obj_t * obj, YCHAR * name, int buffer_size)
 {
 	memset(name, 0, buffer_size * sizeof(YCHAR));
-	
+
 	yaffs_check_obj_details_loaded(obj);
 
 	if (obj->obj_id == YAFFS_OBJECTID_LOSTNFOUND) {
 		yaffs_strncpy(name, YAFFS_LOSTNFOUND_NAME, buffer_size - 1);
-	} 
+	}
 #ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM
 	else if (obj->short_name[0]) {
 		yaffs_strcpy(name, obj->short_name);
@@ -4861,9 +4861,9 @@ int yaffs_set_attribs(yaffs_obj_t *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);
@@ -4886,9 +4886,9 @@ int yaffs_get_attribs(yaffs_obj_t *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;
--- a/fs/yaffs2/yportenv.h
+++ b/fs/yaffs2/yportenv.h
@@ -170,7 +170,7 @@
 #define O_RDWR		02
 #endif
 
-#ifndef O_CREAT		
+#ifndef O_CREAT
 #define O_CREAT 	0100
 #endif
 
@@ -218,7 +218,7 @@
 #define EACCES	13
 #endif
 
-#ifndef EXDEV	
+#ifndef EXDEV
 #define EXDEV	18
 #endif
 
@@ -281,7 +281,7 @@
 #define S_IFREG		0100000
 #endif
 
-#ifndef S_IREAD 
+#ifndef S_IREAD
 #define S_IREAD		0000400
 #endif
 
--- a/fs/yaffs2/devextras.h
+++ b/fs/yaffs2/devextras.h
@@ -87,6 +87,8 @@ struct iattr {
 	unsigned int ia_attr_flags;
 };
 
+/* TODO: add ia_* functions */
+
 #endif
 
 #else
@@ -95,7 +97,48 @@ struct iattr {
 #include <linux/fs.h>
 #include <linux/stat.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
 
+#endif
 
 #endif