Fix mdflush

Since kernel commit 309dca309fc ("block: store a block_device pointer
in struct bio") struct bio points again to a block_device and not to a
gendisk directly.

Resolves: rhbz#1967567

bpftrace-0.12.1-Fix-mdflush.patch

@@ -0,0 +1,26 @@
+From 7453a97005fda29f0b7be8f257736a19d7c13dbe Mon Sep 17 00:00:00 2001
+From: Jerome Marchand <jmarchan@redhat.com>
+Date: Fri, 15 Oct 2021 14:26:28 +0200
+Subject: [PATCH] Fix mdflush
+
+Since kernel commit 309dca309fc ("block: store a block_device pointer
+in struct bio") struct bio points again to a block_device and not to a
+gendisk directly.
+---
+ tools/mdflush.bt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/tools/mdflush.bt b/tools/mdflush.bt
+index e767b81d..541abba1 100755
+--- a/tools/mdflush.bt
++++ b/tools/mdflush.bt
+@@ -26,5 +26,5 @@ kprobe:md_flush_request
+ {
+ 	time("%H:%M:%S ");
+ 	printf("%-6d %-16s %s\n", pid, comm,
+-	    ((struct bio *)arg1)->bi_disk->disk_name);
++	    ((struct bio *)arg1)->bi_bdev->bd_disk->disk_name);
+ }
+-- 
+2.31.1
+

bpftrace.spec

@@ -1,12 +1,13 @@
 Name:           bpftrace
 Version:        0.12.1
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        High-level tracing language for Linux eBPF
 License:        ASL 2.0
 
 URL:            https://github.com/iovisor/bpftrace
 Source0:        %{url}/archive/v%{version}/%{name}-%{version}.tar.gz
 Patch0:         %{name}-%{version}-RHEL-9-fixes.patch
+Patch1:         %{name}-%{version}-Fix-mdflush.patch
 
 # Arches will be included as upstream support is added and dependencies are
 # satisfied in the respective arches
@@ -74,8 +75,10 @@ find %{buildroot}%{_datadir}/%{name}/tools -type f -exec \
 %attr(0755,-,-) %{_datadir}/%{name}/tools/*.bt
 %{_datadir}/%{name}/tools/doc/*.txt
 
-
 %changelog
+* Fri Oct 15 2021 Jerome Marchand <jmarchan@redhat.com> - 0.12.1-3
+- Fix mdflush (rhbz#1967567)
+
 * Mon Aug 09 2021 Mohan Boddu <mboddu@redhat.com> - 0.12.1-2
 - Rebuilt for IMA sigs, glibc 2.34, aarch64 flags
   Related: rhbz#1991688