[PATCH] ext4: make trace_ext4_ext_load_extent print-format correctly

[Gou Hao]

In commit '7d7ea89e756e', pass the 3rd param of trace_ext4_ext_load_extent
to _RET_IP, without modifying the print-format of it.

before this:
147.827896: ext4_ext_load_extent: dev 8,35 ino 272218 lblk 1135807 pblk 
18446744072651077338

after this:
35.118227: ext4_ext_load_extent: dev 8,35 ino 272218 pblk 1135807 caller 
ext4_find_extent+0x17a/0x320 [ext4]

Fixes: 7d7ea89e756e ("ext4: refactor code to read the extent tree block")
Signed-off-by: Gou Hao <gou...@uniontech.com>
---
 include/trace/events/ext4.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index 156908641..55061c36a 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -1707,28 +1707,28 @@ DEFINE_EVENT(ext4__map_blocks_exit, 
ext4_ind_map_blocks_exit,
 );
 
 TRACE_EVENT(ext4_ext_load_extent,
-       TP_PROTO(struct inode *inode, ext4_lblk_t lblk, ext4_fsblk_t pblk),
+       TP_PROTO(struct inode *inode, ext4_fsblk_t pblk, unsigned long IP),
 
-       TP_ARGS(inode, lblk, pblk),
+       TP_ARGS(inode, pblk, IP),
 
        TP_STRUCT__entry(
                __field(        dev_t,          dev             )
                __field(        ino_t,          ino             )
                __field(        ext4_fsblk_t,   pblk            )
-               __field(        ext4_lblk_t,    lblk            )
+               __field(        unsigned long,  ip              )
        ),
 
        TP_fast_assign(
                __entry->dev    = inode->i_sb->s_dev;
                __entry->ino    = inode->i_ino;
                __entry->pblk   = pblk;
-               __entry->lblk   = lblk;
+               __entry->ip     = IP;
        ),
 
-       TP_printk("dev %d,%d ino %lu lblk %u pblk %llu",
+       TP_printk("dev %d,%d ino %lu pblk %llu caller %pS",
                  MAJOR(__entry->dev), MINOR(__entry->dev),
                  (unsigned long) __entry->ino,
-                 __entry->lblk, __entry->pblk)
+                 __entry->pblk, (void *)__entry->ip)
 );
 
 TRACE_EVENT(ext4_load_inode,
-- 
2.43.0