From: Zhao Mengmeng Date: Fri, 17 Apr 2026 09:18:02 +0000 (+0800) Subject: tools/sched_ext: Add missing -c option in scx_qmap help X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=26fb937c7b6ef5c9b8e67dfb08c8164ae108a770;p=thirdparty%2Fkernel%2Flinux.git tools/sched_ext: Add missing -c option in scx_qmap help The sub-scheduler api has been added to scx_qmap, but the new -c option is missing in help, which is hard to understand and use. Add it in help. V2: add [-c CG_PATH] to the usage synopsis. Signed-off-by: Zhao Mengmeng Reviewed-by: Cheng-Yang Chou Signed-off-by: Tejun Heo --- diff --git a/tools/sched_ext/scx_qmap.c b/tools/sched_ext/scx_qmap.c index 4bdcc4bc5fbd4..725c4880058de 100644 --- a/tools/sched_ext/scx_qmap.c +++ b/tools/sched_ext/scx_qmap.c @@ -23,7 +23,8 @@ const char help_fmt[] = "See the top-level comment in .bpf.c for more details.\n" "\n" "Usage: %s [-s SLICE_US] [-e COUNT] [-t COUNT] [-T COUNT] [-l COUNT] [-b COUNT]\n" -" [-N COUNT] [-P] [-M] [-H] [-d PID] [-D LEN] [-S] [-p] [-I] [-F COUNT] [-v]\n" +" [-N COUNT] [-P] [-M] [-H] [-c CG_PATH] [-d PID] [-D LEN] [-S] [-p] [-I]\n" +" [-F COUNT] [-v]\n" "\n" " -s SLICE_US Override slice duration\n" " -e COUNT Trigger scx_bpf_error() after COUNT enqueues\n" @@ -35,6 +36,7 @@ const char help_fmt[] = " -P Print out DSQ content and event counters to trace_pipe every second\n" " -M Print out debug messages to trace_pipe\n" " -H Boost nice -20 tasks in SHARED_DSQ, use with -b\n" +" -c CG_PATH Cgroup path to attach as sub-scheduler, must run parent scheduler first\n" " -d PID Disallow a process from switching into SCHED_EXT (-1 for self)\n" " -D LEN Set scx_exit_info.dump buffer length\n" " -S Suppress qmap-specific debug dump\n"