dax: add tracepoints to dax_pfn_mkwrite()

[karo-tx-linux.git] / include / trace / events / fs_dax.h

diff --git a/include/trace/events/fs_dax.h b/include/trace/events/fs_dax.h
index c566ddc87f73e5885841204d5ae7d160374545a6..b5a520961f8d9958657ae872ab13b713a5a02f57 100644 (file)
--- a/include/trace/events/fs_dax.h
+++ b/include/trace/events/fs_dax.h
@@ -150,6 +150,49 @@ DEFINE_EVENT(dax_pmd_insert_mapping_class, name, \
 DEFINE_PMD_INSERT_MAPPING_EVENT(dax_pmd_insert_mapping);
 DEFINE_PMD_INSERT_MAPPING_EVENT(dax_pmd_insert_mapping_fallback);
 
+DECLARE_EVENT_CLASS(dax_pte_fault_class,
+       TP_PROTO(struct inode *inode, struct vm_fault *vmf, int result),
+       TP_ARGS(inode, vmf, result),
+       TP_STRUCT__entry(
+               __field(unsigned long, ino)
+               __field(unsigned long, vm_flags)
+               __field(unsigned long, address)
+               __field(pgoff_t, 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_flags = vmf->vma->vm_flags;
+               __entry->address = vmf->address;
+               __entry->flags = vmf->flags;
+               __entry->pgoff = vmf->pgoff;
+               __entry->result = result;
+       ),
+       TP_printk("dev %d:%d ino %#lx %s %s address %#lx 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->pgoff,
+               __print_flags(__entry->result, "|", VM_FAULT_RESULT_TRACE)
+       )
+)
+
+#define DEFINE_PTE_FAULT_EVENT(name) \
+DEFINE_EVENT(dax_pte_fault_class, name, \
+       TP_PROTO(struct inode *inode, struct vm_fault *vmf, int result), \
+       TP_ARGS(inode, vmf, result))
+
+DEFINE_PTE_FAULT_EVENT(dax_pte_fault);
+DEFINE_PTE_FAULT_EVENT(dax_pte_fault_done);
+DEFINE_PTE_FAULT_EVENT(dax_pfn_mkwrite_no_entry);
+DEFINE_PTE_FAULT_EVENT(dax_pfn_mkwrite);
+
 #endif /* _TRACE_FS_DAX_H */
 
 /* This part must be outside protection */