bcc/bcc-0.30.0-RHEL-Centos-tools-fix-alignment-in-tp_args-for-bio-t.patch
Jerome Marchand 0afa4cf2fa Fix bio tools
Fix tp_args padding in bio* tools. This is an RHEL/Centos specific
fix.

Resolves: RHEL-61615

Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
2024-10-24 17:04:24 +02:00

62 lines
1.6 KiB
Diff

From 8a9da1d866dfb69ad1ca59bdc50a799ba2da3a0c Mon Sep 17 00:00:00 2001
From: Jerome Marchand <jmarchan@redhat.com>
Date: Thu, 24 Oct 2024 16:56:14 +0200
Subject: [PATCH] RHEL/Centos: tools: fix alignment in tp_args for bio tools
The padding in tp_args is wrong on RHEL 9 / c9s kernel because of the
kernel commit 6bc27040eb90 ("sched: Add support for lazy preemption")
which added a common field to tracepoints.
Now the dev field is at an offset of 12 bytes as shown by
block_io_start/done format file.
Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
---
tools/biolatency.py | 2 +-
tools/biosnoop.py | 2 +-
tools/biotop.py | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/tools/biolatency.py b/tools/biolatency.py
index 03b48a4c..ac150ea2 100755
--- a/tools/biolatency.py
+++ b/tools/biolatency.py
@@ -88,7 +88,7 @@ typedef struct ext_val {
} ext_val_t;
struct tp_args {
- u64 __unused__;
+ u32 __unused__[3];
dev_t dev;
sector_t sector;
unsigned int nr_sector;
diff --git a/tools/biosnoop.py b/tools/biosnoop.py
index f0fef98b..819e953f 100755
--- a/tools/biosnoop.py
+++ b/tools/biosnoop.py
@@ -66,7 +66,7 @@ struct val_t {
};
struct tp_args {
- u64 __unused__;
+ u32 __unused__[3];
dev_t dev;
sector_t sector;
unsigned int nr_sector;
diff --git a/tools/biotop.py b/tools/biotop.py
index 879c6b8f..4c3a1c9a 100755
--- a/tools/biotop.py
+++ b/tools/biotop.py
@@ -91,7 +91,7 @@ struct val_t {
};
struct tp_args {
- u64 __unused__;
+ u32 __unused__[3];
dev_t dev;
sector_t sector;
unsigned int nr_sector;
--
2.47.0