From: Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com>
Date: Sun, 25 Aug 2019 03:10:17 +0000 (-0400)
Subject: jbd2: add missing tracepoint for reserved handle
X-Git-Tag: v5.4-rc1~84^2~6
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4c273352bb4583750bf511fe24fe410610414496;p=thirdparty%2Fkernel%2Flinux.git

jbd2: add missing tracepoint for reserved handle

This issue was found when I use ebpf to trace every jbd2
handle's running info in dioread_nolock case.

Signed-off-by: Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---

diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index 990e7b5062e74..afc06daee5bb0 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -569,6 +569,9 @@ int jbd2_journal_start_reserved(handle_t *handle, unsigned int type,
 	}
 	handle->h_type = type;
 	handle->h_line_no = line_no;
+	trace_jbd2_handle_start(journal->j_fs_dev->bd_dev,
+				handle->h_transaction->t_tid, type,
+				line_no, handle->h_buffer_credits);
 	return 0;
 }
 EXPORT_SYMBOL(jbd2_journal_start_reserved);