!75 backport upstream patches

From: @wangxiao65 
Reviewed-by: @swf504 
Signed-off-by: @swf504

0020-blkparse-skip-check_cpu_map-with-pipe-input.patch

@@ -0,0 +1,40 @@
+From ac416ab67cd7add0089c3bc668427e6b909eb59e Mon Sep 17 00:00:00 2001
+From: Jeff Mahoney <jeffm@suse.com>
+Date: Thu, 21 Oct 2021 10:16:19 -0400
+Subject: [PATCH] blkparse: skip check_cpu_map with pipe input
+
+When we're using pipe input, we don't track online CPUs and don't have a
+cpu_map.  When we start to show entries, check_sequence will be invoked.
+If the first entry isn't sequence 1 (perhaps it's been dropped?), we'll
+proceed to check_cpu_map.  Since we haven't tracked online CPUs,
+pdi->cpu_map_max will be 0 and we'll do a malloc(0).  Then we'll start
+setting bits corresponding to CPU numbers in memory we don't own.  Since
+there's nothing to check here, let's skip it on pipe input.
+
+Signed-off-by: Jeff Mahoney <jeffm@suse.com>
+Signed-off-by: Jens Axboe <axboe@kernel.dk>
+
+Conflict: no
+Reference: https://git.kernel.dk/cgit/blktrace/commit/?id=ac416ab67cd7add0089c3bc668427e6b909eb59e
+---
+ blkparse.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/blkparse.c b/blkparse.c
+index f88204a..498857c 100644
+--- a/blkparse.c
++++ b/blkparse.c
+@@ -2229,6 +2229,10 @@ static int check_cpu_map(struct per_dev_info *pdi)
+ 	unsigned int i;
+ 	int ret, cpu;
+ 
++	/* Pipe input doesn't do CPU online tracking. */
++	if (!pdi->cpu_map_max)
++		return 0;
++
+ 	/*
+ 	 * create a map of the cpus we have traces for
+ 	 */
+-- 
+2.33.0
+

0021-blkparse-fix-incorrectly-sized-memset-in-check_cpu_m.patch

@@ -0,0 +1,35 @@
+From 7f5d2c5173d72018aa29c583c9291ef10abaf8df Mon Sep 17 00:00:00 2001
+From: Jeff Mahoney <jeffm@suse.com>
+Date: Thu, 21 Oct 2021 10:16:20 -0400
+Subject: [PATCH] blkparse: fix incorrectly sized memset in check_cpu_map
+
+The memset call in check_cpu_map always clears sizeof(unsigned long *)
+regardless of what size was allocated.  Use calloc instead to allocate
+the map so it's zeroed properly regardless of the size requested.
+
+Signed-off-by: Jeff Mahoney <jeffm@suse.com>
+Signed-off-by: Jens Axboe <axboe@kernel.dk>
+
+Conflict: no
+Reference: https://git.kernel.dk/cgit/blktrace/commit/?id=7f5d2c5173d72018aa29c583c9291ef10abaf8df
+---
+ blkparse.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/blkparse.c b/blkparse.c
+index 498857c..9d2029a 100644
+--- a/blkparse.c
++++ b/blkparse.c
+@@ -2236,8 +2236,7 @@ static int check_cpu_map(struct per_dev_info *pdi)
+ 	/*
+ 	 * create a map of the cpus we have traces for
+ 	 */
+-	cpu_map = malloc(pdi->cpu_map_max / sizeof(long));
+-	memset(cpu_map, 0, sizeof(*cpu_map));
++	cpu_map = calloc(1, pdi->cpu_map_max / sizeof(long));
+ 	n = rb_first(&rb_sort_root);
+ 	while (n) {
+ 		__t = rb_entry(n, struct trace, rb_node);
+-- 
+2.33.0
+

0022-fix-hang-when-BLKTRACESETUP-fails-and-o-is-used.patch

@@ -0,0 +1,57 @@
+From 1836be5d99c9362f1e2b39206c95270f19cb7faa Mon Sep 17 00:00:00 2001
+From: Eric Sandeen <sandeen@redhat.com>
+Date: Wed, 5 Jun 2024 23:07:27 -0500
+Subject: [PATCH] fix hang when BLKTRACESETUP fails and "-o -" is used
+
+# blktrace -o - /dev/sda /dev/sdb /dev/sdc
+
+has to be SIGKILLed if BLKTRACESETUP fails for any or all of the devices
+listed. (I simulated this by just catching one of the devices in
+setup_buts(), skipping the ioctl, and doing ret++).
+
+This seems to be because with "-o -" on the command line, use_tracer_devpaths()
+sees piped_output set, so we call process_trace_bufs which ends up waiting on
+(!done) and "done" is never set. i.e.
+
+atexit(exit_tracing)
+	wait_tracers
+		if (use_tracer_devpaths()) // true because "-o -"
+			process_trace_bufs
+				while (wait_empty_entries())
+					wait_empty_entries
+						while (!done ... )
+							<loop forever>
+
+I think this can be avoided by just setting "done = 1" before returning
+when setup_buts() fails in run_tracers().
+
+Signed-off-by: Eric Sandeen <sandeen@redhat.com>
+Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
+Link: https://lore.kernel.org/r/f3204c9d-1384-40b5-a5fb-3bb967ca2bec@redhat.com
+Signed-off-by: Jens Axboe <axboe@kernel.dk>
+
+Conflict: no
+Reference: https://git.kernel.dk/cgit/blktrace/commit/?id=1836be5d99c9362f1e2b39206c95270f19cb7faa
+---
+ blktrace.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/blktrace.c b/blktrace.c
+index 3444fbb..038b2cb 100644
+--- a/blktrace.c
++++ b/blktrace.c
+@@ -2684,8 +2684,10 @@ static int run_tracers(void)
+ 	if (net_mode == Net_client)
+ 		printf("blktrace: connecting to %s\n", hostname);
+ 
+-	if (setup_buts())
++	if (setup_buts()) {
++		done = 1;
+ 		return 1;
++	}
+ 
+ 	if (use_tracer_devpaths()) {
+ 		if (setup_tracer_devpaths())
+-- 
+2.33.0
+

blktrace.spec

@@ -1,6 +1,6 @@
 Name:    blktrace
 Version: 1.2.0
-Release: 26
+Release: 27
 Summary: Block IO tracer in the Linux kernel
 License: GPLv2+
 Source:  http://brick.kernel.dk/snaps/blktrace-%{version}.tar.bz2
@@ -30,6 +30,9 @@ Patch16: blktrace-fix-exit-directly-when-nthreads-running.patch
 Patch17: 0017-blktrace-Makefile-add-fstack-protector-strong-flag.patch
 Patch18: 0018-fix-parallel-build-failures.patch
 Patch19: 0019-fix-parallel-build-of-btt-and-blkiomon.patch
+Patch20: 0020-blkparse-skip-check_cpu_map-with-pipe-input.patch
+Patch21: 0021-blkparse-fix-incorrectly-sized-memset-in-check_cpu_m.patch
+Patch22: 0022-fix-hang-when-BLKTRACESETUP-fails-and-o-is-used.patch
 
 %description
 blktrace is a block layer IO tracing mechanism which provides detailed
@@ -64,6 +67,12 @@ make dest=%{buildroot} prefix=%{buildroot}/%{_prefix} mandir=%{buildroot}/%{_man
 %{_mandir}/man8/*
 
 %changelog
+* Tue Sep 24 2024 wangxiao <wangxiao184@h-partners.com> - 1.2.0-27
+- DESC: backport upstream patches
+  blkparse skip check_cpu_map with pipe input
+  blkparse fix incorrectly sized memset in check_cpu_map
+  fix hang when BLKTRACESETUP fails and "-o -" is used
+
 * Sat Oct 09 2021 zhanchengbin <zhanchengbin1@huawei.com> - 1.2.0-26
 - Fixed the issue of modifying parallel compilation