diff options
| author | Gao Xiang <hsiangkao@linux.alibaba.com> | 2021-09-21 22:37:30 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-26 10:39:12 +0100 |
| commit | e8bd5e33057c02d377a76a42987c083afcb43579 (patch) | |
| tree | bc096d4fe263b2228cffd027217162b39f5f9d00 /include/trace/events | |
| parent | 5d5bf899e57a4dbf83cf3ed165f7e7ee15776331 (diff) | |
f2fs: fix up f2fs_lookup tracepoints
[ Upstream commit 70a9ac36ffd807ac506ed0b849f3e8ce3c6623f2 ]
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 <hsiangkao@linux.alibaba.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/trace/events')
| -rw-r--r-- | include/trace/events/f2fs.h | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h index 56b113e3cd6a..df293bc7f03b 100644 --- a/include/trace/events/f2fs.h +++ b/include/trace/events/f2fs.h @@ -807,20 +807,20 @@ TRACE_EVENT(f2fs_lookup_start, 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 @@ TRACE_EVENT(f2fs_lookup_end, 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 @@ TRACE_EVENT(f2fs_lookup_end, 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) ); |