7 files changed, 131 insertions, 125 deletions

diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index 430e219e3aba..63097cb243cb 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -355,16 +355,6 @@ struct cgroup {
 	unsigned long flags;		/* "unsigned long" so bitops work */
 
 	/*
-	 * idr allocated in-hierarchy ID.
-	 *
-	 * ID 0 is not used, the ID of the root cgroup is always 1, and a
-	 * new cgroup will be assigned with a smallest available ID.
-	 *
-	 * Allocating/Removing ID must be protected by cgroup_mutex.
-	 */
-	int id;
-
-	/*
 	 * The depth this cgroup is at.  The root is at depth zero and each
 	 * step down the hierarchy increments the level.  This along with
 	 * ancestor_ids[] can determine whether a given cgroup is a
@@ -458,7 +448,7 @@ struct cgroup {
 	struct list_head rstat_css_list;
 
 	/* cgroup basic resource statistics */
-	struct cgroup_base_stat pending_bstat;	/* pending from children */
+	struct cgroup_base_stat last_bstat;
 	struct cgroup_base_stat bstat;
 	struct prev_cputime prev_cputime;	/* for printing out cputime */
 
@@ -488,7 +478,7 @@ struct cgroup {
 	struct cgroup_freezer_state freezer;
 
 	/* ids of the ancestors at each level including self */
-	int ancestor_ids[];
+	u64 ancestor_ids[];
 };
 
 /*
@@ -509,7 +499,7 @@ struct cgroup_root {
 	struct cgroup cgrp;
 
 	/* for cgrp->ancestor_ids[0] */
-	int cgrp_ancestor_id_storage;
+	u64 cgrp_ancestor_id_storage;
 
 	/* Number of cgroups in the hierarchy, used only for /proc/cgroups */
 	atomic_t nr_cgrps;
@@ -520,9 +510,6 @@ struct cgroup_root {
 	/* Hierarchy-specific flags */
 	unsigned int flags;
 
-	/* IDs for cgroups in this hierarchy */
-	struct idr cgroup_idr;
-
 	/* The path to use for release notifications. */
 	char release_agent_path[PATH_MAX];
 
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 3ba3e6da13a6..d7ddebd0cdec 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -150,7 +150,6 @@ struct task_struct *cgroup_taskset_first(struct cgroup_taskset *tset,
 struct task_struct *cgroup_taskset_next(struct cgroup_taskset *tset,
 					struct cgroup_subsys_state **dst_cssp);
 
-void cgroup_enable_task_cg_lists(void);
 void css_task_iter_start(struct cgroup_subsys_state *css, unsigned int flags,
 			 struct css_task_iter *it);
 struct task_struct *css_task_iter_next(struct css_task_iter *it);
@@ -305,6 +304,11 @@ void css_task_iter_end(struct css_task_iter *it);
  * Inline functions.
  */
 
+static inline u64 cgroup_id(struct cgroup *cgrp)
+{
+	return cgrp->kn->id;
+}
+
 /**
  * css_get - obtain a reference on the specified css
  * @css: target css
@@ -566,7 +570,7 @@ static inline bool cgroup_is_descendant(struct cgroup *cgrp,
 {
 	if (cgrp->root != ancestor->root || cgrp->level < ancestor->level)
 		return false;
-	return cgrp->ancestor_ids[ancestor->level] == ancestor->id;
+	return cgrp->ancestor_ids[ancestor->level] == cgroup_id(ancestor);
 }
 
 /**
@@ -617,7 +621,7 @@ static inline bool cgroup_is_populated(struct cgroup *cgrp)
 /* returns ino associated with a cgroup */
 static inline ino_t cgroup_ino(struct cgroup *cgrp)
 {
-	return cgrp->kn->id.ino;
+	return kernfs_ino(cgrp->kn);
 }
 
 /* cft/css accessors for cftype->write() operation */
@@ -688,18 +692,13 @@ static inline void cgroup_kthread_ready(void)
 	current->no_cgroup_migration = 0;
 }
 
-static inline union kernfs_node_id *cgroup_get_kernfs_id(struct cgroup *cgrp)
-{
-	return &cgrp->kn->id;
-}
-
-void cgroup_path_from_kernfs_id(const union kernfs_node_id *id,
-					char *buf, size_t buflen);
+void cgroup_path_from_kernfs_id(u64 id, char *buf, size_t buflen);
 #else /* !CONFIG_CGROUPS */
 
 struct cgroup_subsys_state;
 struct cgroup;
 
+static inline u64 cgroup_id(struct cgroup *cgrp) { return 1; }
 static inline void css_get(struct cgroup_subsys_state *css) {}
 static inline void css_put(struct cgroup_subsys_state *css) {}
 static inline int cgroup_attach_task_all(struct task_struct *from,
@@ -719,10 +718,6 @@ static inline int cgroup_init_early(void) { return 0; }
 static inline int cgroup_init(void) { return 0; }
 static inline void cgroup_init_kthreadd(void) {}
 static inline void cgroup_kthread_ready(void) {}
-static inline union kernfs_node_id *cgroup_get_kernfs_id(struct cgroup *cgrp)
-{
-	return NULL;
-}
 
 static inline struct cgroup *cgroup_parent(struct cgroup *cgrp)
 {
@@ -740,8 +735,8 @@ static inline bool task_under_cgroup_hierarchy(struct task_struct *task,
 	return true;
 }
 
-static inline void cgroup_path_from_kernfs_id(const union kernfs_node_id *id,
-	char *buf, size_t buflen) {}
+static inline void cgroup_path_from_kernfs_id(u64 id, char *buf, size_t buflen)
+{}
 #endif /* !CONFIG_CGROUPS */
 
 #ifdef CONFIG_CGROUPS
diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h
index cf6571fc9c01..d896b8657085 100644
--- a/include/linux/exportfs.h
+++ b/include/linux/exportfs.h
@@ -105,6 +105,11 @@ enum fid_type {
 	FILEID_LUSTRE = 0x97,
 
 	/*
+	 * 64 bit unique kernfs id
+	 */
+	FILEID_KERNFS = 0xfe,
+
+	/*
 	 * Filesystems must not use 0xff file ID.
 	 */
 	FILEID_INVALID = 0xff,
diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h
index 936b61bd504e..dded2e5a9f42 100644
--- a/include/linux/kernfs.h
+++ b/include/linux/kernfs.h
@@ -104,21 +104,6 @@ struct kernfs_elem_attr {
 	struct kernfs_node	*notify_next;	/* for kernfs_notify() */
 };
 
-/* represent a kernfs node */
-union kernfs_node_id {
-	struct {
-		/*
-		 * blktrace will export this struct as a simplified 'struct
-		 * fid' (which is a big data struction), so userspace can use
-		 * it to find kernfs node. The layout must match the first two
-		 * fields of 'struct fid' exactly.
-		 */
-		u32		ino;
-		u32		generation;
-	};
-	u64			id;
-};
-
 /*
  * kernfs_node - the building block of kernfs hierarchy.  Each and every
  * kernfs node is represented by single kernfs_node.  Most fields are
@@ -155,7 +140,12 @@ struct kernfs_node {
 
 	void			*priv;
 
-	union kernfs_node_id	id;
+	/*
+	 * 64bit unique ID.  On 64bit ino setups, id is the ino.  On 32bit,
+	 * the low 32bits are ino and upper generation.
+	 */
+	u64			id;
+
 	unsigned short		flags;
 	umode_t			mode;
 	struct kernfs_iattrs	*iattr;
@@ -187,7 +177,8 @@ struct kernfs_root {
 
 	/* private fields, do not use outside kernfs proper */
 	struct idr		ino_idr;
-	u32			next_generation;
+	u32			last_id_lowbits;
+	u32			id_highbits;
 	struct kernfs_syscall_ops *syscall_ops;
 
 	/* list of kernfs_super_info of this root, protected by kernfs_mutex */
@@ -291,6 +282,34 @@ static inline enum kernfs_node_type kernfs_type(struct kernfs_node *kn)
 	return kn->flags & KERNFS_TYPE_MASK;
 }
 
+static inline ino_t kernfs_id_ino(u64 id)
+{
+	/* id is ino if ino_t is 64bit; otherwise, low 32bits */
+	if (sizeof(ino_t) >= sizeof(u64))
+		return id;
+	else
+		return (u32)id;
+}
+
+static inline u32 kernfs_id_gen(u64 id)
+{
+	/* gen is fixed at 1 if ino_t is 64bit; otherwise, high 32bits */
+	if (sizeof(ino_t) >= sizeof(u64))
+		return 1;
+	else
+		return id >> 32;
+}
+
+static inline ino_t kernfs_ino(struct kernfs_node *kn)
+{
+	return kernfs_id_ino(kn->id);
+}
+
+static inline ino_t kernfs_gen(struct kernfs_node *kn)
+{
+	return kernfs_id_gen(kn->id);
+}
+
 /**
  * kernfs_enable_ns - enable namespace under a directory
  * @kn: directory of interest, should be empty
@@ -382,8 +401,8 @@ void kernfs_kill_sb(struct super_block *sb);
 
 void kernfs_init(void);
 
-struct kernfs_node *kernfs_get_node_by_id(struct kernfs_root *root,
-	const union kernfs_node_id *id);
+struct kernfs_node *kernfs_find_and_get_node_by_id(struct kernfs_root *root,
+						   u64 id);
 #else	/* CONFIG_KERNFS */
 
 static inline enum kernfs_node_type kernfs_type(struct kernfs_node *kn)
diff --git a/include/net/netprio_cgroup.h b/include/net/netprio_cgroup.h
index cfc9441ef074..dec7522b6ce1 100644
--- a/include/net/netprio_cgroup.h
+++ b/include/net/netprio_cgroup.h
@@ -26,7 +26,7 @@ static inline u32 task_netprioidx(struct task_struct *p)
 
 	rcu_read_lock();
 	css = task_css(p, net_prio_cgrp_id);
-	idx = css->cgroup->id;
+	idx = css->id;
 	rcu_read_unlock();
 	return idx;
 }
diff --git a/include/trace/events/cgroup.h b/include/trace/events/cgroup.h
index a566cc521476..7f42a3de59e6 100644
--- a/include/trace/events/cgroup.h
+++ b/include/trace/events/cgroup.h
@@ -66,7 +66,7 @@ DECLARE_EVENT_CLASS(cgroup,
 
 	TP_fast_assign(
 		__entry->root = cgrp->root->hierarchy_id;
-		__entry->id = cgrp->id;
+		__entry->id = cgroup_id(cgrp);
 		__entry->level = cgrp->level;
 		__assign_str(path, path);
 	),
@@ -135,7 +135,7 @@ DECLARE_EVENT_CLASS(cgroup_migrate,
 
 	TP_fast_assign(
 		__entry->dst_root = dst_cgrp->root->hierarchy_id;
-		__entry->dst_id = dst_cgrp->id;
+		__entry->dst_id = cgroup_id(dst_cgrp);
 		__entry->dst_level = dst_cgrp->level;
 		__assign_str(dst_path, path);
 		__entry->pid = task->pid;
@@ -179,7 +179,7 @@ DECLARE_EVENT_CLASS(cgroup_event,
 
 	TP_fast_assign(
 		__entry->root = cgrp->root->hierarchy_id;
-		__entry->id = cgrp->id;
+		__entry->id = cgroup_id(cgrp);
 		__entry->level = cgrp->level;
 		__assign_str(path, path);
 		__entry->val = val;
diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h
index c2ce6480b4b1..ef50be4e5e6c 100644
--- a/include/trace/events/writeback.h
+++ b/include/trace/events/writeback.h
@@ -61,7 +61,7 @@ DECLARE_EVENT_CLASS(writeback_page_template,
 
 	TP_STRUCT__entry (
 		__array(char, name, 32)
-		__field(unsigned long, ino)
+		__field(ino_t, ino)
 		__field(pgoff_t, index)
 	),
 
@@ -75,7 +75,7 @@ DECLARE_EVENT_CLASS(writeback_page_template,
 
 	TP_printk("bdi %s: ino=%lu index=%lu",
 		__entry->name,
-		__entry->ino,
+		(unsigned long)__entry->ino,
 		__entry->index
 	)
 );
@@ -102,7 +102,7 @@ DECLARE_EVENT_CLASS(writeback_dirty_inode_template,
 
 	TP_STRUCT__entry (
 		__array(char, name, 32)
-		__field(unsigned long, ino)
+		__field(ino_t, ino)
 		__field(unsigned long, state)
 		__field(unsigned long, flags)
 	),
@@ -120,7 +120,7 @@ DECLARE_EVENT_CLASS(writeback_dirty_inode_template,
 
 	TP_printk("bdi %s: ino=%lu state=%s flags=%s",
 		__entry->name,
-		__entry->ino,
+		(unsigned long)__entry->ino,
 		show_inode_state(__entry->state),
 		show_inode_state(__entry->flags)
 	)
@@ -150,28 +150,28 @@ DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode,
 #ifdef CREATE_TRACE_POINTS
 #ifdef CONFIG_CGROUP_WRITEBACK
 
-static inline unsigned int __trace_wb_assign_cgroup(struct bdi_writeback *wb)
+static inline ino_t __trace_wb_assign_cgroup(struct bdi_writeback *wb)
 {
-	return wb->memcg_css->cgroup->kn->id.ino;
+	return cgroup_ino(wb->memcg_css->cgroup);
 }
 
-static inline unsigned int __trace_wbc_assign_cgroup(struct writeback_control *wbc)
+static inline ino_t __trace_wbc_assign_cgroup(struct writeback_control *wbc)
 {
 	if (wbc->wb)
 		return __trace_wb_assign_cgroup(wbc->wb);
 	else
-		return -1U;
+		return 1;
 }
 #else	/* CONFIG_CGROUP_WRITEBACK */
 
-static inline unsigned int __trace_wb_assign_cgroup(struct bdi_writeback *wb)
+static inline ino_t __trace_wb_assign_cgroup(struct bdi_writeback *wb)
 {
-	return -1U;
+	return 1;
 }
 
-static inline unsigned int __trace_wbc_assign_cgroup(struct writeback_control *wbc)
+static inline ino_t __trace_wbc_assign_cgroup(struct writeback_control *wbc)
 {
-	return -1U;
+	return 1;
 }
 
 #endif	/* CONFIG_CGROUP_WRITEBACK */
@@ -187,8 +187,8 @@ TRACE_EVENT(inode_foreign_history,
 
 	TP_STRUCT__entry(
 		__array(char,		name, 32)
-		__field(unsigned long,	ino)
-		__field(unsigned int,	cgroup_ino)
+		__field(ino_t,		ino)
+		__field(ino_t,		cgroup_ino)
 		__field(unsigned int,	history)
 	),
 
@@ -199,10 +199,10 @@ TRACE_EVENT(inode_foreign_history,
 		__entry->history	= history;
 	),
 
-	TP_printk("bdi %s: ino=%lu cgroup_ino=%u history=0x%x",
+	TP_printk("bdi %s: ino=%lu cgroup_ino=%lu history=0x%x",
 		__entry->name,
-		__entry->ino,
-		__entry->cgroup_ino,
+		(unsigned long)__entry->ino,
+		(unsigned long)__entry->cgroup_ino,
 		__entry->history
 	)
 );
@@ -216,9 +216,9 @@ TRACE_EVENT(inode_switch_wbs,
 
 	TP_STRUCT__entry(
 		__array(char,		name, 32)
-		__field(unsigned long,	ino)
-		__field(unsigned int,	old_cgroup_ino)
-		__field(unsigned int,	new_cgroup_ino)
+		__field(ino_t,		ino)
+		__field(ino_t,		old_cgroup_ino)
+		__field(ino_t,		new_cgroup_ino)
 	),
 
 	TP_fast_assign(
@@ -228,11 +228,11 @@ TRACE_EVENT(inode_switch_wbs,
 		__entry->new_cgroup_ino	= __trace_wb_assign_cgroup(new_wb);
 	),
 
-	TP_printk("bdi %s: ino=%lu old_cgroup_ino=%u new_cgroup_ino=%u",
+	TP_printk("bdi %s: ino=%lu old_cgroup_ino=%lu new_cgroup_ino=%lu",
 		__entry->name,
-		__entry->ino,
-		__entry->old_cgroup_ino,
-		__entry->new_cgroup_ino
+		(unsigned long)__entry->ino,
+		(unsigned long)__entry->old_cgroup_ino,
+		(unsigned long)__entry->new_cgroup_ino
 	)
 );
 
@@ -245,10 +245,10 @@ TRACE_EVENT(track_foreign_dirty,
 	TP_STRUCT__entry(
 		__array(char,		name, 32)
 		__field(u64,		bdi_id)
-		__field(unsigned long,	ino)
+		__field(ino_t,		ino)
 		__field(unsigned int,	memcg_id)
-		__field(unsigned int,	cgroup_ino)
-		__field(unsigned int,	page_cgroup_ino)
+		__field(ino_t,		cgroup_ino)
+		__field(ino_t,		page_cgroup_ino)
 	),
 
 	TP_fast_assign(
@@ -260,16 +260,16 @@ TRACE_EVENT(track_foreign_dirty,
 		__entry->ino		= inode ? inode->i_ino : 0;
 		__entry->memcg_id	= wb->memcg_css->id;
 		__entry->cgroup_ino	= __trace_wb_assign_cgroup(wb);
-		__entry->page_cgroup_ino = page->mem_cgroup->css.cgroup->kn->id.ino;
+		__entry->page_cgroup_ino = cgroup_ino(page->mem_cgroup->css.cgroup);
 	),
 
-	TP_printk("bdi %s[%llu]: ino=%lu memcg_id=%u cgroup_ino=%u page_cgroup_ino=%u",
+	TP_printk("bdi %s[%llu]: ino=%lu memcg_id=%u cgroup_ino=%lu page_cgroup_ino=%lu",
 		__entry->name,
 		__entry->bdi_id,
-		__entry->ino,
+		(unsigned long)__entry->ino,
 		__entry->memcg_id,
-		__entry->cgroup_ino,
-		__entry->page_cgroup_ino
+		(unsigned long)__entry->cgroup_ino,
+		(unsigned long)__entry->page_cgroup_ino
 	)
 );
 
@@ -282,7 +282,7 @@ TRACE_EVENT(flush_foreign,
 
 	TP_STRUCT__entry(
 		__array(char,		name, 32)
-		__field(unsigned int,	cgroup_ino)
+		__field(ino_t,		cgroup_ino)
 		__field(unsigned int,	frn_bdi_id)
 		__field(unsigned int,	frn_memcg_id)
 	),
@@ -294,9 +294,9 @@ TRACE_EVENT(flush_foreign,
 		__entry->frn_memcg_id	= frn_memcg_id;
 	),
 
-	TP_printk("bdi %s: cgroup_ino=%u frn_bdi_id=%u frn_memcg_id=%u",
+	TP_printk("bdi %s: cgroup_ino=%lu frn_bdi_id=%u frn_memcg_id=%u",
 		__entry->name,
-		__entry->cgroup_ino,
+		(unsigned long)__entry->cgroup_ino,
 		__entry->frn_bdi_id,
 		__entry->frn_memcg_id
 	)
@@ -311,9 +311,9 @@ DECLARE_EVENT_CLASS(writeback_write_inode_template,
 
 	TP_STRUCT__entry (
 		__array(char, name, 32)
-		__field(unsigned long, ino)
+		__field(ino_t, ino)
 		__field(int, sync_mode)
-		__field(unsigned int, cgroup_ino)
+		__field(ino_t, cgroup_ino)
 	),
 
 	TP_fast_assign(
@@ -324,11 +324,11 @@ DECLARE_EVENT_CLASS(writeback_write_inode_template,
 		__entry->cgroup_ino	= __trace_wbc_assign_cgroup(wbc);
 	),
 
-	TP_printk("bdi %s: ino=%lu sync_mode=%d cgroup_ino=%u",
+	TP_printk("bdi %s: ino=%lu sync_mode=%d cgroup_ino=%lu",
 		__entry->name,
-		__entry->ino,
+		(unsigned long)__entry->ino,
 		__entry->sync_mode,
-		__entry->cgroup_ino
+		(unsigned long)__entry->cgroup_ino
 	)
 );
 
@@ -358,7 +358,7 @@ DECLARE_EVENT_CLASS(writeback_work_class,
 		__field(int, range_cyclic)
 		__field(int, for_background)
 		__field(int, reason)
-		__field(unsigned int, cgroup_ino)
+		__field(ino_t, cgroup_ino)
 	),
 	TP_fast_assign(
 		strscpy_pad(__entry->name,
@@ -374,7 +374,7 @@ DECLARE_EVENT_CLASS(writeback_work_class,
 		__entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
 	),
 	TP_printk("bdi %s: sb_dev %d:%d nr_pages=%ld sync_mode=%d "
-		  "kupdate=%d range_cyclic=%d background=%d reason=%s cgroup_ino=%u",
+		  "kupdate=%d range_cyclic=%d background=%d reason=%s cgroup_ino=%lu",
 		  __entry->name,
 		  MAJOR(__entry->sb_dev), MINOR(__entry->sb_dev),
 		  __entry->nr_pages,
@@ -383,7 +383,7 @@ DECLARE_EVENT_CLASS(writeback_work_class,
 		  __entry->range_cyclic,
 		  __entry->for_background,
 		  __print_symbolic(__entry->reason, WB_WORK_REASON),
-		  __entry->cgroup_ino
+		  (unsigned long)__entry->cgroup_ino
 	)
 );
 #define DEFINE_WRITEBACK_WORK_EVENT(name) \
@@ -413,15 +413,15 @@ DECLARE_EVENT_CLASS(writeback_class,
 	TP_ARGS(wb),
 	TP_STRUCT__entry(
 		__array(char, name, 32)
-		__field(unsigned int, cgroup_ino)
+		__field(ino_t, cgroup_ino)
 	),
 	TP_fast_assign(
 		strscpy_pad(__entry->name, dev_name(wb->bdi->dev), 32);
 		__entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
 	),
-	TP_printk("bdi %s: cgroup_ino=%u",
+	TP_printk("bdi %s: cgroup_ino=%lu",
 		  __entry->name,
-		  __entry->cgroup_ino
+		  (unsigned long)__entry->cgroup_ino
 	)
 );
 #define DEFINE_WRITEBACK_EVENT(name) \
@@ -459,7 +459,7 @@ DECLARE_EVENT_CLASS(wbc_class,
 		__field(int, range_cyclic)
 		__field(long, range_start)
 		__field(long, range_end)
-		__field(unsigned int, cgroup_ino)
+		__field(ino_t, cgroup_ino)
 	),
 
 	TP_fast_assign(
@@ -478,7 +478,7 @@ DECLARE_EVENT_CLASS(wbc_class,
 
 	TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d "
 		"bgrd=%d reclm=%d cyclic=%d "
-		"start=0x%lx end=0x%lx cgroup_ino=%u",
+		"start=0x%lx end=0x%lx cgroup_ino=%lu",
 		__entry->name,
 		__entry->nr_to_write,
 		__entry->pages_skipped,
@@ -489,7 +489,7 @@ DECLARE_EVENT_CLASS(wbc_class,
 		__entry->range_cyclic,
 		__entry->range_start,
 		__entry->range_end,
-		__entry->cgroup_ino
+		(unsigned long)__entry->cgroup_ino
 	)
 )
 
@@ -510,7 +510,7 @@ TRACE_EVENT(writeback_queue_io,
 		__field(long,		age)
 		__field(int,		moved)
 		__field(int,		reason)
-		__field(unsigned int,	cgroup_ino)
+		__field(ino_t,		cgroup_ino)
 	),
 	TP_fast_assign(
 		unsigned long *older_than_this = work->older_than_this;
@@ -522,13 +522,13 @@ TRACE_EVENT(writeback_queue_io,
 		__entry->reason	= work->reason;
 		__entry->cgroup_ino	= __trace_wb_assign_cgroup(wb);
 	),
-	TP_printk("bdi %s: older=%lu age=%ld enqueue=%d reason=%s cgroup_ino=%u",
+	TP_printk("bdi %s: older=%lu age=%ld enqueue=%d reason=%s cgroup_ino=%lu",
 		__entry->name,
 		__entry->older,	/* older_than_this in jiffies */
 		__entry->age,	/* older_than_this in relative milliseconds */
 		__entry->moved,
 		__print_symbolic(__entry->reason, WB_WORK_REASON),
-		__entry->cgroup_ino
+		(unsigned long)__entry->cgroup_ino
 	)
 );
 
@@ -596,7 +596,7 @@ TRACE_EVENT(bdi_dirty_ratelimit,
 		__field(unsigned long,	dirty_ratelimit)
 		__field(unsigned long,	task_ratelimit)
 		__field(unsigned long,	balanced_dirty_ratelimit)
-		__field(unsigned int,	cgroup_ino)
+		__field(ino_t,		cgroup_ino)
 	),
 
 	TP_fast_assign(
@@ -614,7 +614,7 @@ TRACE_EVENT(bdi_dirty_ratelimit,
 	TP_printk("bdi %s: "
 		  "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
 		  "dirty_ratelimit=%lu task_ratelimit=%lu "
-		  "balanced_dirty_ratelimit=%lu cgroup_ino=%u",
+		  "balanced_dirty_ratelimit=%lu cgroup_ino=%lu",
 		  __entry->bdi,
 		  __entry->write_bw,		/* write bandwidth */
 		  __entry->avg_write_bw,	/* avg write bandwidth */
@@ -622,7 +622,7 @@ TRACE_EVENT(bdi_dirty_ratelimit,
 		  __entry->dirty_ratelimit,	/* base ratelimit */
 		  __entry->task_ratelimit, /* ratelimit with position control */
 		  __entry->balanced_dirty_ratelimit, /* the balanced ratelimit */
-		  __entry->cgroup_ino
+		  (unsigned long)__entry->cgroup_ino
 	)
 );
 
@@ -660,7 +660,7 @@ TRACE_EVENT(balance_dirty_pages,
 		__field(	 long,	pause)
 		__field(unsigned long,	period)
 		__field(	 long,	think)
-		__field(unsigned int,	cgroup_ino)
+		__field(ino_t,		cgroup_ino)
 	),
 
 	TP_fast_assign(
@@ -692,7 +692,7 @@ TRACE_EVENT(balance_dirty_pages,
 		  "bdi_setpoint=%lu bdi_dirty=%lu "
 		  "dirty_ratelimit=%lu task_ratelimit=%lu "
 		  "dirtied=%u dirtied_pause=%u "
-		  "paused=%lu pause=%ld period=%lu think=%ld cgroup_ino=%u",
+		  "paused=%lu pause=%ld period=%lu think=%ld cgroup_ino=%lu",
 		  __entry->bdi,
 		  __entry->limit,
 		  __entry->setpoint,
@@ -707,7 +707,7 @@ TRACE_EVENT(balance_dirty_pages,
 		  __entry->pause,	/* ms */
 		  __entry->period,	/* ms */
 		  __entry->think,	/* ms */
-		  __entry->cgroup_ino
+		  (unsigned long)__entry->cgroup_ino
 	  )
 );
 
@@ -718,10 +718,10 @@ TRACE_EVENT(writeback_sb_inodes_requeue,
 
 	TP_STRUCT__entry(
 		__array(char, name, 32)
-		__field(unsigned long, ino)
+		__field(ino_t, ino)
 		__field(unsigned long, state)
 		__field(unsigned long, dirtied_when)
-		__field(unsigned int, cgroup_ino)
+		__field(ino_t, cgroup_ino)
 	),
 
 	TP_fast_assign(
@@ -733,13 +733,13 @@ TRACE_EVENT(writeback_sb_inodes_requeue,
 		__entry->cgroup_ino	= __trace_wb_assign_cgroup(inode_to_wb(inode));
 	),
 
-	TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu cgroup_ino=%u",
+	TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu cgroup_ino=%lu",
 		  __entry->name,
-		  __entry->ino,
+		  (unsigned long)__entry->ino,
 		  show_inode_state(__entry->state),
 		  __entry->dirtied_when,
 		  (jiffies - __entry->dirtied_when) / HZ,
-		  __entry->cgroup_ino
+		  (unsigned long)__entry->cgroup_ino
 	)
 );
 
@@ -789,13 +789,13 @@ DECLARE_EVENT_CLASS(writeback_single_inode_template,
 
 	TP_STRUCT__entry(
 		__array(char, name, 32)
-		__field(unsigned long, ino)
+		__field(ino_t, ino)
 		__field(unsigned long, state)
 		__field(unsigned long, dirtied_when)
 		__field(unsigned long, writeback_index)
 		__field(long, nr_to_write)
 		__field(unsigned long, wrote)
-		__field(unsigned int, cgroup_ino)
+		__field(ino_t, cgroup_ino)
 	),
 
 	TP_fast_assign(
@@ -811,16 +811,16 @@ DECLARE_EVENT_CLASS(writeback_single_inode_template,
 	),
 
 	TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
-		  "index=%lu to_write=%ld wrote=%lu cgroup_ino=%u",
+		  "index=%lu to_write=%ld wrote=%lu cgroup_ino=%lu",
 		  __entry->name,
-		  __entry->ino,
+		  (unsigned long)__entry->ino,
 		  show_inode_state(__entry->state),
 		  __entry->dirtied_when,
 		  (jiffies - __entry->dirtied_when) / HZ,
 		  __entry->writeback_index,
 		  __entry->nr_to_write,
 		  __entry->wrote,
-		  __entry->cgroup_ino
+		  (unsigned long)__entry->cgroup_ino
 	)
 );
 
@@ -845,7 +845,7 @@ DECLARE_EVENT_CLASS(writeback_inode_template,
 
 	TP_STRUCT__entry(
 		__field(	dev_t,	dev			)
-		__field(unsigned long,	ino			)
+		__field(	ino_t,	ino			)
 		__field(unsigned long,	state			)
 		__field(	__u16, mode			)
 		__field(unsigned long, dirtied_when		)
@@ -861,7 +861,7 @@ DECLARE_EVENT_CLASS(writeback_inode_template,
 
 	TP_printk("dev %d,%d ino %lu dirtied %lu state %s mode 0%o",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
-		  __entry->ino, __entry->dirtied_when,
+		  (unsigned long)__entry->ino, __entry->dirtied_when,
 		  show_inode_state(__entry->state), __entry->mode)
 );