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Message-ID: <20250922161436.358949-1-tj@kernel.org> Date: Mon, 22 Sep 2025 06:14:29 -1000 From: Tejun Heo <tj@...nel.org> To: void@...ifault.com, arighi@...dia.com, changwoo@...lia.com Cc: linux-kernel@...r.kernel.org, sched-ext@...ts.linux.dev Subject: [PATCHSET sched_ext/scx-misc-a] sched_ext: Add @sch parameter in preparation for multi-sched support This patchset systematically adds the @sch parameter to various sched_ext functions in preparation for multiple scheduler support. This part is needed regardless of how the rest of the multiple scheduler patchset develops. The changes also remove a bunch of naked scx_root dereferences that trigger sparse warnings. The changes are mostly mechanical parameter additions without functional changes. The patches are based on sched_ext/for-6.18 (ac6772e8bcda) + "sched_ext: misc cleanups and improvements" (http://lkml.kernel.org/r/20250922013246.275031-1-tj@kernel.org). 1 sched_ext: Separate out scx_kick_cpu() and add @sch to it 2 sched_ext: Add the @sch parameter to __bstr_format() 3 sched_ext: Add the @sch parameter to ext_idle helpers 4 sched_ext: Drop kf_cpu_valid() 5 sched_ext: Add the @sch parameter to scx_dsq_insert_preamble/commit() 6 sched_ext: Drop scx_kf_exit() and scx_kf_error() 7 sched_ext: Misc updates around scx_sched instance pointer The following git tree also contains the patchset: git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git scx-sub-sched-misc-prep kernel/sched/ext.c | 355 ++++++++++++++++++++++++++++++------------------ kernel/sched/ext_idle.c | 146 ++++++++++++++++---- 2 files changed, 340 insertions(+), 161 deletions(-) -- tejun
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