dax: add tracepoint to dax_writeback_one()

[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 9afe8c8f0beff7b59fe9c8f738572101375a3e82..292a4719edd011ceff950707dbc49f740d3a9100 100644 (file)
--- a/include/trace/events/fs_dax.h
+++ b/include/trace/events/fs_dax.h
@@ -226,6 +226,30 @@ DEFINE_EVENT(dax_writeback_range_class, name, \
 DEFINE_WRITEBACK_RANGE_EVENT(dax_writeback_range);
 DEFINE_WRITEBACK_RANGE_EVENT(dax_writeback_range_done);
 
+TRACE_EVENT(dax_writeback_one,
+       TP_PROTO(struct inode *inode, pgoff_t pgoff, pgoff_t pglen),
+       TP_ARGS(inode, pgoff, pglen),
+       TP_STRUCT__entry(
+               __field(unsigned long, ino)
+               __field(pgoff_t, pgoff)
+               __field(pgoff_t, pglen)
+               __field(dev_t, dev)
+       ),
+       TP_fast_assign(
+               __entry->dev = inode->i_sb->s_dev;
+               __entry->ino = inode->i_ino;
+               __entry->pgoff = pgoff;
+               __entry->pglen = pglen;
+       ),
+       TP_printk("dev %d:%d ino %#lx pgoff %#lx pglen %#lx",
+               MAJOR(__entry->dev),
+               MINOR(__entry->dev),
+               __entry->ino,
+               __entry->pgoff,
+               __entry->pglen
+       )
+)
+
 #endif /* _TRACE_FS_DAX_H */
 
 /* This part must be outside protection */