From patchwork Sat Dec 16 03:32:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kent Overstreet X-Patchwork-Id: 13495433 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 055B5C4332F for ; Sat, 16 Dec 2023 03:33:46 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 4EE8F8D0157; Fri, 15 Dec 2023 22:33:35 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 3FF6D8D0153; Fri, 15 Dec 2023 22:33:35 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 169148D0157; Fri, 15 Dec 2023 22:33:35 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id E613E8D0153 for ; Fri, 15 Dec 2023 22:33:34 -0500 (EST) Received: from smtpin21.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id C11AAA2868 for ; Sat, 16 Dec 2023 03:33:34 +0000 (UTC) X-FDA: 81571261548.21.6E09812 Received: from out-176.mta0.migadu.com (out-176.mta0.migadu.com [91.218.175.176]) by imf22.hostedemail.com (Postfix) with ESMTP id 1C5DBC000A for ; Sat, 16 Dec 2023 03:33:31 +0000 (UTC) Authentication-Results: imf22.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=u7h8j6yR; dmarc=pass (policy=none) header.from=linux.dev; spf=pass (imf22.hostedemail.com: domain of kent.overstreet@linux.dev designates 91.218.175.176 as permitted sender) smtp.mailfrom=kent.overstreet@linux.dev ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1702697612; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=hdKy4c2nBK8OI3SHb8BxNCiiiUgr6tnoyAXaAjNUd7o=; b=qhiy27qCD7OYfKXcVlJwbN9DX2yBqGkJadGnYgKXbXxhN+REcS50hdAzRcYEMfc//xJMI4 bWSmfWkuMWJwA+7icej8wDnyRonbL1DjXGubu6GdrBsZmOxHelqQFf66FnbqNR3NjP5v8I ssRrgaNy5CrzSDjWSpCJy8nHRKszlcs= ARC-Authentication-Results: i=1; imf22.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=u7h8j6yR; dmarc=pass (policy=none) header.from=linux.dev; spf=pass (imf22.hostedemail.com: domain of kent.overstreet@linux.dev designates 91.218.175.176 as permitted sender) smtp.mailfrom=kent.overstreet@linux.dev ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1702697612; a=rsa-sha256; cv=none; b=m01Ca3is8KI8oKG9TQTNsT3S5zA6bYgJXac77++FNa3VEZcaix2+NMbc6bgGnlTU0pH9Kx 5kWQbkmKPhI6kF0TdzdG/URtkmVD1GwyRqE+04sOa9jf41HNLv48GmBY+VxE+ZR+KJvOpC yqsRrTIMqfVSYP3dZUpR1L9HU5Mwg/o= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1702697610; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=hdKy4c2nBK8OI3SHb8BxNCiiiUgr6tnoyAXaAjNUd7o=; b=u7h8j6yRy4W3KIP0uUc0t9IivyFOUHLizykuz/OutUHsq99rFa/O5tgPuwzqjJ0+TOXqYm dQl0x6e3yNEReAm6QbwM8WlNoe7FRV9uF4cu1Y3Pm4w1i7cWnQklA1javWWAGXQ2qehTNx EoDMjTpIhLYMCnn98EkX9mPxW7DV4Cs= From: Kent Overstreet To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org Cc: Kent Overstreet , tglx@linutronix.de, x86@kernel.org, tj@kernel.org, peterz@infradead.org, mathieu.desnoyers@efficios.com, paulmck@kernel.org, keescook@chromium.org, dave.hansen@linux.intel.com, mingo@redhat.com, will@kernel.org, longman@redhat.com, boqun.feng@gmail.com, brauner@kernel.org Subject: [PATCH 39/50] refcount: Split out refcount_types.h Date: Fri, 15 Dec 2023 22:32:45 -0500 Message-ID: <20231216033300.3553457-7-kent.overstreet@linux.dev> In-Reply-To: <20231216033300.3553457-1-kent.overstreet@linux.dev> References: <20231216024834.3510073-1-kent.overstreet@linux.dev> <20231216033300.3553457-1-kent.overstreet@linux.dev> MIME-Version: 1.0 X-Migadu-Flow: FLOW_OUT X-Rspamd-Queue-Id: 1C5DBC000A X-Rspam-User: X-Rspamd-Server: rspam02 X-Stat-Signature: b6bgb7wbo7yo7ocyfnj5h4qtnqom49ru X-HE-Tag: 1702697611-481859 X-HE-Meta: U2FsdGVkX1+OrDHdkS375syhcCBYPkMDh27J3UtF4FeEiNpt0ao4dpomJ1Rehb+z/jB1WgMs8nxP/u0H2x0oYprg6AkL25GqzoKXSl8ZDNQadoOkbaGXhxxMIRintsPMjCKIuDNS6U4rgXc9RwRv8chvTjiAjE8vzeCtyVmwS2T1Qkg8JTyCHlOdJcf8ehWvJS2hSVz0q1OKoYsbEXN3IkKGJj4PyHDjCL7uVtKfo7Kk0QQrOPRZEXh6oeiqYli24+/7hNBLFQkZeL5eoeRHaB91b6Jr6WpLNy6cjZUp+taAan0UP+RJxJJVzf+O/W5dMPs3qXjp2tvczHm0ziRQoJbaw3Lt0a6Lf4lQE+CvGPBWGKzQNSZnwAjzqEC44ATTjVnRSpkW2SJFjkPDEeaTq3jhXGMKkWWkNMPVsnpQIBjRdL1Wc4Qq8MNklH6r0IlbG1ydTvWTb2GbaTQlIOAXSWczDnEUj+k1VFbqb30Nr7vrm3qea2K1DHlz1WOOQxzC041qbza/eq4rj+/N/XTj7QW+bvGejNaB/llVCJp215gMN1j+8faup1SEbpDuK5xzDB96qidbgWCDSTuT7OrrmMGUeqzM1JsMdOExB1vRcCMhc2dCHgGiZdkmgydT6FBxZQZnk4Op8AK4nuuSyevW8v7TStWkNOMXUPp86FuGwhzMbHFwlM2H9jUyQCcjdirvXDbflfMxeXSZglvLTs9cPDGQlTKulDpwZrHOnr9WdeNKYi9MAt5QBy13zfF/XxfVjUZN6gXzfeufAdX+ENJhrCBOaqcFF4FL/E8vTHfFlEAe1hfsht9/QycIav38fCB0MHRh1VmeMQN1fStYQi7mRfoBV5keY9KWjWW5QItQoC1aWKENH5oF5DAhRa55E91cC+wPAoa6eT0C4VwtI1+lQPKbkc2VrxuWt/e1f+GdUYYxY+AYXl3vZuAvie95pGHTE0B92Gxlfd78aPxuXui htW1Sar7 taCrogEhBq2aBUg58euHUYj36ikTkSL1E63oBPvVcTtvhhsPHQR8mkVLsPqn50fj9FyV+FvVjfqBV/ao4DT55TL+3PjH3tE8DooIJT7ZWbiS42Yc3QII8QJKQLKQgYn8gCGG2eggWiARVHk2qJF5f2jZ8LpyaKG2eCu6Ipad+ZVS/oRojnJfhZU7HOIT3w/WplBDatWv7+0oIpjs= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: More trimming of sched.h dependencies. Signed-off-by: Kent Overstreet --- include/linux/refcount.h | 13 +------------ include/linux/refcount_types.h | 19 +++++++++++++++++++ include/linux/sched.h | 2 +- 3 files changed, 21 insertions(+), 13 deletions(-) create mode 100644 include/linux/refcount_types.h diff --git a/include/linux/refcount.h b/include/linux/refcount.h index a62fcca97486..85c6df0d1bef 100644 --- a/include/linux/refcount.h +++ b/include/linux/refcount.h @@ -96,22 +96,11 @@ #include #include #include +#include #include struct mutex; -/** - * typedef refcount_t - variant of atomic_t specialized for reference counts - * @refs: atomic_t counter field - * - * The counter saturates at REFCOUNT_SATURATED and will not move once - * there. This avoids wrapping the counter and causing 'spurious' - * use-after-free bugs. - */ -typedef struct refcount_struct { - atomic_t refs; -} refcount_t; - #define REFCOUNT_INIT(n) { .refs = ATOMIC_INIT(n), } #define REFCOUNT_MAX INT_MAX #define REFCOUNT_SATURATED (INT_MIN / 2) diff --git a/include/linux/refcount_types.h b/include/linux/refcount_types.h new file mode 100644 index 000000000000..162004f06edf --- /dev/null +++ b/include/linux/refcount_types.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_REFCOUNT_TYPES_H +#define _LINUX_REFCOUNT_TYPES_H + +#include + +/** + * typedef refcount_t - variant of atomic_t specialized for reference counts + * @refs: atomic_t counter field + * + * The counter saturates at REFCOUNT_SATURATED and will not move once + * there. This avoids wrapping the counter and causing 'spurious' + * use-after-free bugs. + */ +typedef struct refcount_struct { + atomic_t refs; +} refcount_t; + +#endif /* _LINUX_REFCOUNT_TYPES_H */ diff --git a/include/linux/sched.h b/include/linux/sched.h index fea6d913e004..f52977af1511 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -22,7 +22,7 @@ #include #include #include -#include +#include #include #include #include