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 59C9E3B19BA; Fri, 17 Apr 2026 19:25:25 +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=1776453925; cv=none; b=NotiEdX6kpxBOq3AcbTAZUcjiL3JMS9vFNC6Wn4tLfzLBzbmMmsn+sQZDVv1DnTlPOC544ohJjQcjsTwPlHqT8KLcFNHzs33691jhsaQ+re0129PZncD+At1vRcnAniDltPYpMaWZNfFAGJjZP1+J7T+TaqCGW3U8C/n9iSjoOk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776453925; c=relaxed/simple; bh=Tr+qsomKsAUhZRC1jOhhI0YEmiqugw6bD4AFTYAChpg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=h6s7PhzCnBb1pqDBDaWBqLi4DaDyhhxyL+UGsP+dG93kxkoKZ+sABr+4Y/hP1g6P61/k/pdG/rpWiDveDLg1kiW4ba9TSdISFuNGB+eEJTGl9QtVpIu7U1LeUS6CAHnvZERsf438MhG6h5GMPWAdDix75Yov0v4dWU+11cHatXA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=NyUmkTtE; 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="NyUmkTtE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0D951C19425; Fri, 17 Apr 2026 19:25:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776453924; bh=Tr+qsomKsAUhZRC1jOhhI0YEmiqugw6bD4AFTYAChpg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NyUmkTtELMCyxQ0qT94FfpGj6kS8W7u8OWVDue1h9JmMM5CCes497DybIEr4QljxW 2tfRT4bRIQ0jLBwV1EVBLe1/rG+r1IqEY4MvGQ/b0/ENVEILsBy0PQhAT495uVa24L wFt7Pa18fg/Nwy9AuV/L7Pqa1WykXOTD3jPChghcZLmT/+A4fvS3tJ+MCCitMazFRW hfebPo+n414aCAdAn262/hI6XC2SXcnoT6WpwnVGhUzWBh9DBtJzGRPF9rb/LspzG7 ETrQKKIsIUkKruZX+92ZKwSBkvhyDwLeJ5Y48DBYLRO6E0j0Yhws9QxlMLPjej8xNW 23OzKrVGldRCg== From: Jiri Olsa To: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko Cc: bpf@vger.kernel.org, linux-trace-kernel@vger.kernel.org, Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , Menglong Dong , Steven Rostedt Subject: [PATCHv5 bpf-next 01/28] ftrace: Add ftrace_hash_count function Date: Fri, 17 Apr 2026 21:24:35 +0200 Message-ID: <20260417192502.194548-2-jolsa@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260417192502.194548-1-jolsa@kernel.org> References: <20260417192502.194548-1-jolsa@kernel.org> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Adding external ftrace_hash_count function so we could get hash count outside of ftrace object. Signed-off-by: Jiri Olsa --- include/linux/ftrace.h | 1 + kernel/trace/ftrace.c | 7 ++++++- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index c242fe49af4c..401f8dfd05d3 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -415,6 +415,7 @@ struct ftrace_hash *alloc_ftrace_hash(int size_bits); void free_ftrace_hash(struct ftrace_hash *hash); struct ftrace_func_entry *add_ftrace_hash_entry_direct(struct ftrace_hash *hash, unsigned long ip, unsigned long direct); +unsigned long ftrace_hash_count(struct ftrace_hash *hash); /* The hash used to know what functions callbacks trace */ struct ftrace_ops_hash { diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 413310912609..68a071e80f32 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -6288,11 +6288,16 @@ int modify_ftrace_direct(struct ftrace_ops *ops, unsigned long addr) } EXPORT_SYMBOL_GPL(modify_ftrace_direct); -static unsigned long hash_count(struct ftrace_hash *hash) +static inline unsigned long hash_count(struct ftrace_hash *hash) { return hash ? hash->count : 0; } +unsigned long ftrace_hash_count(struct ftrace_hash *hash) +{ + return hash_count(hash); +} + /** * hash_add - adds two struct ftrace_hash and returns the result * @a: struct ftrace_hash object -- 2.53.0