From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DC4C11F4285 for ; Tue, 21 Jan 2025 15:06:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737472007; cv=none; b=TYLI6lEM9epNNBv7ZsEFALatgJ6thJbEwiLg1hP2DYsD5E4T2zj5CySb6KgstmfbvkF3wke1/fXFQWXXD8fz4jF08M6ykFSysctNUIerCJAk0PLfn6YRkw01h8GqMjIoXRqoy0zP+hjv4Zg0CnsK4wQwlXG1wbAml5+v/OTkZjo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737472007; c=relaxed/simple; bh=BQPYemmPdudjlJRFr1vUiJOe3znPz2SZDi5PjR42KdQ=; h=Date:From:To:Cc:Subject:Message-Id:Mime-Version:Content-Type; b=K6/OOjNcV+BKWlIvgZ8i2pidw0658Kx23xWc/b39x42QRulFk3tVnf/rCamZvIDw/HhgqZKt5csTkVwVGw+UHuPNXUUDPguPfYJ1eceowKv8AYfNRRlN6vIl0fMdf9hyXWP5I7o8cMc2Ijbzv8ZDK7E6n7Fr3b8AItCSFn76xlo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=GdVM+3kC; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="GdVM+3kC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A8EDFC4CEDF; Tue, 21 Jan 2025 15:06:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1737472007; bh=BQPYemmPdudjlJRFr1vUiJOe3znPz2SZDi5PjR42KdQ=; h=Date:From:To:Cc:Subject:From; b=GdVM+3kCjEvoyyUEUBgAtVf6dSjdADQOE5XBjY/XIxAjnkp024DPhmqnk2Gb7vaQx 6PNAl2f1U2zajpCQqxVpvl+igcq83tJiNRDEKPrF7iK+gaeykTUVUil0rJxVbpXRYS pgzCuuANBHyxAwLl4/46omhbwFwwPtUyUDjqITtY6y6AmgwUdLF9rtdw1FZ5yFmZqL CHbcz7v8M17hM7q3MA54mC1/BtCe7Yaa46rih3uOhXxX3G2/8n3+ESVFBzRr4t9rIB 9sD89UQsSJuqpEzmVm2CCR01fr0y6qc4OYvGdhVb8CrpQw/GtjQQDbJNIybz89qaGZ lVdraiz/4lUfg== Date: Wed, 22 Jan 2025 00:06:43 +0900 From: Masami Hiramatsu (Google) To: Linus Torvalds Cc: Masami Hiramatsu (Google) , Thomas =?UTF-8?B?V2Vp?= =?UTF-8?B?w59zY2h1aA==?= , Steven Rostedt , Masami Hiramatsu , linux-kernel@vger.kernel.org Subject: [GIT PULL] probes: Updates for v6.14 Message-Id: <20250122000643.ca462dec3a3b906933ef3aee@kernel.org> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Hi Linus, Probes updates for v6.14: - kprobes: Cleanups using guard() and __free(): Use cleanup.h macros to cleanup code and remove all gotos from kprobes code. This work includes below changes. . kprobes: Adopt guard() and scoped_guard() . jump_label: Define guard() for jump_label_lock . kprobes: Use guard() for external locks . kprobes: Use guard for rcu_read_lock . kprobes: Remove unneeded goto . kprobes: Remove remaining gotos - tracing/probes: Also cleanups tracing/*probe events code with guard() and __free(). These patches are just to simplify the parser codes. This work includes below changes. . tracing/kprobe: Adopt guard() and scoped_guard() . tracing/uprobe: Adopt guard() and scoped_guard() . tracing/eprobe: Adopt guard() and scoped_guard() . tracing: Use __free() in trace_probe for cleanup . tracing: Use __free() for kprobe events to cleanup . tracing/kprobes: Simplify __trace_kprobe_create() by removing gotos - kprobes: Reduce preempt disable scope in check_kprobe_access_safe() This reduces preempt disable time only when getting the module refcount in check_kprobe_access_safe(). Previously it disabled preempt needlessly for other checks including jump_label_text_reserved(), but it took long time because of the linear search. Please pull the latest probes-v6.14 tree, which can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git probes-v6.14 Tag SHA1: fb6828c54b6b19d45d80d34fa9b7c03aa2e9a87b Head SHA1: 927054606d08d95827f854246293f8379480ed15 Masami Hiramatsu (Google) (12): kprobes: Adopt guard() and scoped_guard() tracing/kprobe: Adopt guard() and scoped_guard() tracing/uprobe: Adopt guard() and scoped_guard() tracing/eprobe: Adopt guard() and scoped_guard() jump_label: Define guard() for jump_label_lock kprobes: Use guard() for external locks kprobes: Use guard for rcu_read_lock kprobes: Remove unneeded goto kprobes: Remove remaining gotos tracing: Use __free() in trace_probe for cleanup tracing: Use __free() for kprobe events to cleanup tracing/kprobes: Simplify __trace_kprobe_create() by removing gotos Thomas Weißschuh (1): kprobes: Reduce preempt disable scope in check_kprobe_access_safe() ---- include/linux/jump_label.h | 3 + kernel/kprobes.c | 592 ++++++++++++++++++++------------------------ kernel/trace/trace_eprobe.c | 36 ++- kernel/trace/trace_kprobe.c | 155 ++++++------ kernel/trace/trace_probe.c | 51 ++-- kernel/trace/trace_uprobe.c | 15 +- 6 files changed, 384 insertions(+), 468 deletions(-) -- Masami Hiramatsu (Google)