diff --git a/fs/dax.c b/fs/dax.c
index ddcddfe..b719ecf 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -35,6 +35,9 @@
 #include <linux/iomap.h>
 #include "internal.h"
 
+#define CREATE_TRACE_POINTS
+#include <trace/events/fs_dax.h>
+
 /* We choose 4096 entries - same as per-zone page wait tables */
 #define DAX_WAIT_TABLE_BITS 12
 #define DAX_WAIT_TABLE_ENTRIES (1 << DAX_WAIT_TABLE_BITS)
@@ -1333,6 +1336,16 @@ int dax_iomap_pmd_fault(struct vm_area_struct *vma, unsigned long address,
 	loff_t pos;
 	int error;
 
+	/*
+	 * Check whether offset isn't beyond end of file now. Caller is
+	 * supposed to hold locks serializing us with truncate / punch hole so
+	 * this is a reliable test.
+	 */
+	pgoff = linear_page_index(vma, pmd_addr);
+	max_pgoff = (i_size_read(inode) - 1) >> PAGE_SHIFT;
+
+	trace_dax_pmd_fault(inode, vma, address, flags, pgoff, max_pgoff, 0);
+
 	/* Fall back to PTEs if we're going to COW */
 	if (write && !(vma->vm_flags & VM_SHARED))
 		goto fallback;
@@ -1343,16 +1356,10 @@ int dax_iomap_pmd_fault(struct vm_area_struct *vma, unsigned long address,
 	if ((pmd_addr + PMD_SIZE) > vma->vm_end)
 		goto fallback;
 
-	/*
-	 * Check whether offset isn't beyond end of file now. Caller is
-	 * supposed to hold locks serializing us with truncate / punch hole so
-	 * this is a reliable test.
-	 */
-	pgoff = linear_page_index(vma, pmd_addr);
-	max_pgoff = (i_size_read(inode) - 1) >> PAGE_SHIFT;
-
-	if (pgoff > max_pgoff)
-		return VM_FAULT_SIGBUS;
+	if (pgoff > max_pgoff) {
+		result = VM_FAULT_SIGBUS;
+		goto out;
+	}
 
 	/* If the PMD would extend beyond the file size */
 	if ((pgoff | PG_PMD_COLOUR) > max_pgoff)
@@ -1424,6 +1431,9 @@ int dax_iomap_pmd_fault(struct vm_area_struct *vma, unsigned long address,
 		split_huge_pmd(vma, pmd, address);
 		count_vm_event(THP_FAULT_FALLBACK);
 	}
+out:
+	trace_dax_pmd_fault_done(inode, vma, address, flags, pgoff, max_pgoff,
+			result);
 	return result;
 }
 EXPORT_SYMBOL_GPL(dax_iomap_pmd_fault);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index d22fc0d..aaf4c96 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -281,6 +281,17 @@ extern pgprot_t protection_map[16];
 #define FAULT_FLAG_REMOTE	0x80	/* faulting for non current tsk/mm */
 #define FAULT_FLAG_INSTRUCTION  0x100	/* The fault was during an instruction fetch */
 
+#define FAULT_FLAG_TRACE \
+	{ FAULT_FLAG_WRITE,		"WRITE" }, \
+	{ FAULT_FLAG_MKWRITE,		"MKWRITE" }, \
+	{ FAULT_FLAG_ALLOW_RETRY,	"ALLOW_RETRY" }, \
+	{ FAULT_FLAG_RETRY_NOWAIT,	"RETRY_NOWAIT" }, \
+	{ FAULT_FLAG_KILLABLE,		"KILLABLE" }, \
+	{ FAULT_FLAG_TRIED,		"TRIED" }, \
+	{ FAULT_FLAG_USER,		"USER" }, \
+	{ FAULT_FLAG_REMOTE,		"REMOTE" }, \
+	{ FAULT_FLAG_INSTRUCTION,	"INSTRUCTION" }
+
 /*
  * vm_fault is filled by the the pagefault handler and passed to the vma's
  * ->fault function. The vma's ->fault is responsible for returning a bitmask
@@ -1107,6 +1118,20 @@ static inline void clear_page_pfmemalloc(struct page *page)
 			 VM_FAULT_HWPOISON | VM_FAULT_HWPOISON_LARGE | \
 			 VM_FAULT_FALLBACK)
 
+#define VM_FAULT_RESULT_TRACE \
+	{ VM_FAULT_OOM,			"OOM" }, \
+	{ VM_FAULT_SIGBUS,		"SIGBUS" }, \
+	{ VM_FAULT_MAJOR,		"MAJOR" }, \
+	{ VM_FAULT_WRITE,		"WRITE" }, \
+	{ VM_FAULT_HWPOISON,		"HWPOISON" }, \
+	{ VM_FAULT_HWPOISON_LARGE,	"HWPOISON_LARGE" }, \
+	{ VM_FAULT_SIGSEGV,		"SIGSEGV" }, \
+	{ VM_FAULT_NOPAGE,		"NOPAGE" }, \
+	{ VM_FAULT_LOCKED,		"LOCKED" }, \
+	{ VM_FAULT_RETRY,		"RETRY" }, \
+	{ VM_FAULT_FALLBACK,		"FALLBACK" }, \
+	{ VM_FAULT_DONE_COW,		"DONE_COW" }
+
 /* Encode hstate index for a hwpoisoned large page */
 #define VM_FAULT_SET_HINDEX(x) ((x) << 12)
 #define VM_FAULT_GET_HINDEX(x) (((x) >> 12) & 0xf)
diff --git a/include/trace/events/fs_dax.h b/include/trace/events/fs_dax.h
new file mode 100644
index 0000000..58b0b56
--- /dev/null
+++ b/include/trace/events/fs_dax.h
@@ -0,0 +1,68 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM fs_dax
+
+#if !defined(_TRACE_FS_DAX_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_FS_DAX_H
+
+#include <linux/tracepoint.h>
+
+DECLARE_EVENT_CLASS(dax_pmd_fault_class,
+	TP_PROTO(struct inode *inode, struct vm_area_struct *vma,
+		unsigned long address, unsigned int flags, pgoff_t pgoff,
+		pgoff_t max_pgoff, int result),
+	TP_ARGS(inode, vma, address, flags, pgoff, max_pgoff, result),
+	TP_STRUCT__entry(
+		__field(unsigned long, ino)
+		__field(unsigned long, vm_start)
+		__field(unsigned long, vm_end)
+		__field(unsigned long, vm_flags)
+		__field(unsigned long, address)
+		__field(pgoff_t, pgoff)
+		__field(pgoff_t, max_pgoff)
+		__field(dev_t, dev)
+		__field(unsigned int, flags)
+		__field(int, result)
+	),
+	TP_fast_assign(
+		__entry->dev = inode->i_sb->s_dev;
+		__entry->ino = inode->i_ino;
+		__entry->vm_start = vma->vm_start;
+		__entry->vm_end = vma->vm_end;
+		__entry->vm_flags = vma->vm_flags;
+		__entry->address = address;
+		__entry->flags = flags;
+		__entry->pgoff = pgoff;
+		__entry->max_pgoff = max_pgoff;
+		__entry->result = result;
+	),
+	TP_printk("dev %d:%d ino %#lx %s %s address %#lx vm_start "
+			"%#lx vm_end %#lx pgoff %#lx max_pgoff %#lx %s",
+		MAJOR(__entry->dev),
+		MINOR(__entry->dev),
+		__entry->ino,
+		__entry->vm_flags & VM_SHARED ? "shared" : "private",
+		__print_flags(__entry->flags, "|", FAULT_FLAG_TRACE),
+		__entry->address,
+		__entry->vm_start,
+		__entry->vm_end,
+		__entry->pgoff,
+		__entry->max_pgoff,
+		__print_flags(__entry->result, "|", VM_FAULT_RESULT_TRACE)
+	)
+)
+
+#define DEFINE_PMD_FAULT_EVENT(name) \
+DEFINE_EVENT(dax_pmd_fault_class, name, \
+	TP_PROTO(struct inode *inode, struct vm_area_struct *vma, \
+		unsigned long address, unsigned int flags, pgoff_t pgoff, \
+		pgoff_t max_pgoff, int result), \
+	TP_ARGS(inode, vma, address, flags, pgoff, max_pgoff, result))
+
+DEFINE_PMD_FAULT_EVENT(dax_pmd_fault);
+DEFINE_PMD_FAULT_EVENT(dax_pmd_fault_done);
+
+
+#endif /* _TRACE_FS_DAX_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
