Hi Lianbo, thanks for the fix. -----Original Message----- > Subject: [PATCH] Fix for "help -m" option to display correct hz value This is a fix for HZ calculation, not for "help -m" itself. Let me modify the subject like this: [PATCH] Fix for HZ calculation on Linux 5.14 and later

> > Kernel commit 3e9a99eba058 ("block/mq-deadline: Rename dd_init_queue() > and dd_exit_queue()") renamed dd_init_queue to dd_init_sched. Without > the patch, the 'help -m' may print incorrect hz value as follows: > > crash> help -m | grep hz > hz: 1000 <---The correct hz value on ppc64le machine is 100. > ^^^^ > > Fixes: b93027ce5c75 ("Add alternate HZ calculation using write_expire") > Signed-off-by: Lianbo Jiang <lijiang(a)redhat.com&gt; Otherwise, the looks good to me and tested ok. Acked-by: Kazuhito Hagio <k-hagio-ab(a)nec.com&gt; Thanks, Kazu > --- > task.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/task.c b/task.c > index bb6a5da8ad33..e24f06396a6c 100644 > --- a/task.c > +++ b/task.c > @@ -440,6 +440,8 @@ task_init(void) > } > } else if ((symbol_exists("dd_init_queue") && > gdb_set_crash_scope(symbol_value("dd_init_queue"), "dd_init_queue")) || > + (symbol_exists("dd_init_sched") && > + gdb_set_crash_scope(symbol_value("dd_init_sched"), "dd_init_sched")) || > (symbol_exists("deadline_init_queue") && > gdb_set_crash_scope(symbol_value("deadline_init_queue"), "deadline_init_queue"))) { > char buf[BUFSIZE]; > -- > 2.20.1