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McKenney" , Steven Rostedt , kkd@meta.com, kernel-team@meta.com Subject: [PATCH bpf v1 0/2] Fix bpf_link grace period wait for tracepoints Date: Mon, 30 Mar 2026 05:21:21 +0200 Message-ID: <20260330032124.3141001-1-memxor@gmail.com> X-Mailer: git-send-email 2.52.0 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=812; h=from:subject; bh=GuTd4SRv8M3QGnccT/n6noay5kjQ/Y0ziO7lhZo8fsc=; b=owGbwMvMwCXmrmtenRyi38x4Wi2JIfPkG86Js3TqfFl01Df5fnwh/E6j9aD8vO8er20fTDGYdjOy XLy4o5SFQYyLQVZMkaXk/z4m4xOVvwNtl3HDzGFlAhnCwMUpABNRZGD4n8Gw8vnvpsNsj/q+zRI1qR PKiIuZq6BWU7Ax9UTknqXTkxkZVk3mbmC3Krkms2VKxJIrtrNmfmXluOWx9GVizKpPexm3MwAA X-Developer-Key: i=memxor@gmail.com; a=openpgp; fpr=B34BD741DE8494B76E2F717880EF20021D46C59B Content-Transfer-Encoding: 8bit A recent change to non-faultable tracepoints switched from preempt-disabled critical sections to SRCU-fast, which breaks assumptions in the bpf_link_free() path. Use call_srcu() to fix the breakage. While at it, retire rcu_trace_implies_rcu_gp() and clean up all in-tree users. Kumar Kartikeya Dwivedi (2): bpf: Fix grace period wait for tracepoint bpf_link bpf: Retire rcu_trace_implies_rcu_gp() include/linux/rcupdate.h | 12 ------------ include/linux/tracepoint.h | 8 ++++++++ kernel/bpf/core.c | 10 ++++------ kernel/bpf/memalloc.c | 33 ++++++++++--------------------- kernel/bpf/syscall.c | 40 ++++++++++++++++++++++---------------- 5 files changed, 45 insertions(+), 58 deletions(-) base-commit: c369299895a591d96745d6492d4888259b004a9e -- 2.52.0