Fix up a misuse that the filename pointer isn't always valid in
the ring buffer, and we should copy the content instead.
Fixes: 0c5e36db17f5 ("f2fs: trace f2fs_lookup")
Signed-off-by: Gao Xiang
---
include/trace/events/f2fs.h | 12 ++--
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 4e881d9..4cb055a 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -807,20 +807,20 @@
TP_STRUCT__entry(
__field(dev_t, dev)
__field(ino_t, ino)
- __field(const char *, name)
+ __string(name, dentry->d_name.name)
__field(unsigned int, flags)
),
TP_fast_assign(
__entry->dev= dir->i_sb->s_dev;
__entry->ino= dir->i_ino;
- __entry->name = dentry->d_name.name;
+ __assign_str(name, dentry->d_name.name);
__entry->flags = flags;
),
TP_printk("dev = (%d,%d), pino = %lu, name:%s, flags:%u",
show_dev_ino(__entry),
- __entry->name,
+ __get_str(name),
__entry->flags)
);
@@ -834,7 +834,7 @@
TP_STRUCT__entry(
__field(dev_t, dev)
__field(ino_t, ino)
- __field(const char *, name)
+ __string(name, dentry->d_name.name)
__field(nid_t, cino)
__field(int,err)
),
@@ -842,14 +842,14 @@
TP_fast_assign(
__entry->dev= dir->i_sb->s_dev;
__entry->ino= dir->i_ino;
- __entry->name = dentry->d_name.name;
+ __assign_str(name, dentry->d_name.name);
__entry->cino = ino;
__entry->err= err;
),
TP_printk("dev = (%d,%d), pino = %lu, name:%s, ino:%u, err:%d",
show_dev_ino(__entry),
- __entry->name,
+ __get_str(name),
__entry->cino,
__entry->err)
);
--
1.8.3.1
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