From: Tejun Heo <tj@kernel.org>
To: sched-ext@lists.linux.dev
Cc: David Vernet <void@manifault.com>,
Andrea Righi <arighi@nvidia.com>,
Changwoo Min <changwoo@igalia.com>,
Emil Tsalapatis <emil@etsalapatis.com>,
David Dai <david.dai@linux.dev>,
linux-kernel@vger.kernel.org, Tejun Heo <tj@kernel.org>
Subject: [PATCHSET sched_ext/for-7.5] sched_ext: Sync tools headers with scx and fix unsigned enum reads
Date: Fri, 23 Oct 2026 13:20:58 -1000 [thread overview]
Message-ID: <20261023232102.1124938-1-tj@kernel.org> (raw)
Hello,
This patchset fixes __COMPAT_read_enum() sign-extending unsigned 4-byte
enums, which made SCX_RESCUE_DISABLE read as 0xffffffffffffffff, syncs the
shared headers in tools/sched_ext/include with the scx repo, and drops the
enum lookup table entries for enumerators the kernel no longer has. The scx
side is https://github.com/sched-ext/scx/pull/3930, merged, and
https://github.com/sched-ext/scx/pull/3932.
With both applied, the shared headers in tools/sched_ext/include are
identical to scx's except the two generated tables, enum_defs.autogen.h and
enums_abi.autogen.h, which each side regenerates from its own vmlinux.h.
Based on sched_ext/for-7.5 (dd3b1d9be27c).
This patchset contains the following 4 patches.
0001 sched_ext: Don't sign-extend unsigned enums in __COMPAT_read_enum()
0002 sched_ext: Sync tools autogen enum lookup tables from the scx repo
0003 sched_ext: Sync common and compat headers from the scx repo
0004 sched_ext: Drop stale entries from the enum lookup tables
The patchset is also available in the following git branch:
git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git enums-sync
diffstat follows. Thanks.
tools/sched_ext/include/scx/bpf_arena_common.bpf.h | 23 +++++++++++++++++++++-
tools/sched_ext/include/scx/common.bpf.h | 9 +++++++++
tools/sched_ext/include/scx/compat.bpf.h | 16 +++++++--------
tools/sched_ext/include/scx/compat.h | 6 +++++-
tools/sched_ext/include/scx/enums.autogen.bpf.h | 18 +++--------------
tools/sched_ext/include/scx/enums.autogen.h | 6 +-----
tools/sched_ext/scx_flatcg.bpf.c | 5 -----
7 files changed, 48 insertions(+), 35 deletions(-)
--
tejun
next reply other threads:[~2026-10-23 23:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-23 23:20 Tejun Heo [this message]
2026-10-23 23:20 ` [PATCH 1/4] sched_ext: Don't sign-extend unsigned enums in __COMPAT_read_enum() Tejun Heo
2026-10-23 23:21 ` [PATCH 2/4] sched_ext: Sync tools autogen enum lookup tables from the scx repo Tejun Heo
2026-10-23 23:21 ` [PATCH 3/4] sched_ext: Sync common and compat headers " Tejun Heo
2026-10-23 23:21 ` [PATCH 4/4] sched_ext: Drop stale entries from the enum lookup tables Tejun Heo
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