From patchwork Wed Aug 28 05:49:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Charlie Jenkins X-Patchwork-Id: 13780638 Received: from mail-pl1-f182.google.com (mail-pl1-f182.google.com [209.85.214.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 93D48156F39 for ; Wed, 28 Aug 2024 05:49:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724824179; cv=none; b=NmItd38beUJNnppL/nz+GOuZWU9ZlX2TUD9tKZgBCJLClPvxuFIQKIFblOKefQZ5a7DvE8oTn9bWf/Q2ML1TgHTgpVsPWIvzcAoToMOSaS3MG0w+3cZQAV9ipFmp4Dz9L40HsVaITb9JV7KhdQY438vN2H9pFy/E0XOoIz/cpv4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724824179; c=relaxed/simple; bh=deEFSUhsRdIX0bdzxWoQYKSiKJBAsZhcTOjbVXT5+ls=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=JDEAEycctjtQlRfa80VZR7aGmQeazUIYDOULHhKjCxiWO1WdKupIFCF8WGbSFiBUCdWgjfQN3Yeo2MrmX3tnG6fs4sjl/R0ryec+OeqyCckRfBFTknzePHexD27ZmbWpNje2NbwPtNyGsb1SGJ5q9I3SAPASljOvt5mf18y7pwU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=rivosinc.com; spf=pass smtp.mailfrom=rivosinc.com; dkim=pass (2048-bit key) header.d=rivosinc-com.20230601.gappssmtp.com header.i=@rivosinc-com.20230601.gappssmtp.com header.b=oBVGgfaN; arc=none smtp.client-ip=209.85.214.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=rivosinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rivosinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=rivosinc-com.20230601.gappssmtp.com header.i=@rivosinc-com.20230601.gappssmtp.com header.b="oBVGgfaN" Received: by mail-pl1-f182.google.com with SMTP id d9443c01a7336-20223b5c1c0so57717025ad.2 for ; Tue, 27 Aug 2024 22:49:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20230601.gappssmtp.com; s=20230601; t=1724824177; x=1725428977; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=TGbwsGUaSgh3SYkS7pHaMfmAZns1s9a6v7xPbD2XVAI=; b=oBVGgfaNqLlIp++Uer06pzZME0fzEA6A+S3rfZsafzxcYxqMPwYojAou9YkGeUhCrE 9gEGmx+3i6KveY1t3jbBnnKg5o9iQgErzsNta4t4YhK8rCrAdd7uanFN5y5B0xZInynY S/YrYmsJk0ZErKiGXiTxTdM2we/YW4EcTTHoSBFzhhgVV5NiDzmy6BrTHaudiebPFf8I uIL2BrHnJymH6v8cXw1UGhJD8M2Ps2Kkxk7hNxjr4yPpzF/SDdeLRFk77uyawWD+6MKE JdgbrsOus+IcK3pXb8qwnN2LhaqniyKk5ZGi1vFU6Jic6HDLf+EjkTKBQHavYmq0a4Pd YsAg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724824177; x=1725428977; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=TGbwsGUaSgh3SYkS7pHaMfmAZns1s9a6v7xPbD2XVAI=; b=Q00ITlMRbaj/WCacZPRxPyaqOSzERol9TzJT8Z1WRl1vayInw45U0xCo/yoa4F+vwR MH8MPjY7ol/1Noko2trWQevOVYLkzNcmLbbHXN9ZHTXRBLppYYPkiwws2pLEMLDREILU RHm19mygjG2v7lAzhaXOAJdrrSHencb2n+eINr10G3T4g9iA3jpPm6xBr1eiNLIYaWFe by/JsVeDpq3Y3p0cK2ORp2c5dGFzxx2M60nwVmtjGbYtffnqvOzr59ioxeYDl7SorUG/ N760TCnuNHHFCuLxW0e9B3d3vT5HKG3QamnJ6LuVprU8Vigix3osnKERRa0Xr8ICKTta Iwyg== X-Forwarded-Encrypted: i=1; AJvYcCWZVlXKEf2ka/mIGPYG7bOAx1KKH09gLCDK8c0bWzCMbkRfA1qWzwKpZerOW61enx59+Xl0bbBA7TMCUEE=@vger.kernel.org X-Gm-Message-State: AOJu0YwAJVsQv+ujCSCFNiryxdyB4+9Y8LkIzq81Uvx4Nj+Wc8y24utf mki2mWUhZjh5V90uOKx/pHovyyjjaQedqzBAitaNTQn5bufmfhjtDB4P6m5PE0Q= X-Google-Smtp-Source: AGHT+IETeUynSugovs7+A+AN20czg30Ola2aofBrInbwTCbD60I4EWjQ5oF17Pp044tfVMlW9N70GQ== X-Received: by 2002:a17:902:f946:b0:1fb:6ea1:6a with SMTP id d9443c01a7336-204f9bf6b4fmr8673095ad.42.1724824176426; Tue, 27 Aug 2024 22:49:36 -0700 (PDT) Received: from charlie.ba.rivosinc.com ([64.71.180.162]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-203855df0c4sm92092495ad.157.2024.08.27.22.49.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Aug 2024 22:49:35 -0700 (PDT) From: Charlie Jenkins Date: Tue, 27 Aug 2024 22:49:09 -0700 Subject: [PATCH 03/16] mm: Add flag and len param to arch_get_mmap_base() Precedence: bulk X-Mailing-List: linux-parisc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240827-patches-below_hint_mmap-v1-3-46ff2eb9022d@rivosinc.com> References: <20240827-patches-below_hint_mmap-v1-0-46ff2eb9022d@rivosinc.com> In-Reply-To: <20240827-patches-below_hint_mmap-v1-0-46ff2eb9022d@rivosinc.com> To: Arnd Bergmann , Paul Walmsley , Palmer Dabbelt , Albert Ou , Catalin Marinas , Will Deacon , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Naveen N Rao , Muchun Song , Andrew Morton , "Liam R. Howlett" , Vlastimil Babka , Lorenzo Stoakes , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Huacai Chen , WANG Xuerui , Russell King , Thomas Bogendoerfer , "James E.J. Bottomley" , Helge Deller , Alexander Gordeev , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Sven Schnelle , Yoshinori Sato , Rich Felker , John Paul Adrian Glaubitz , "David S. Miller" , Andreas Larsson , Shuah Khan , Alexandre Ghiti Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Palmer Dabbelt , linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-kselftest@vger.kernel.org, Charlie Jenkins X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=3681; i=charlie@rivosinc.com; h=from:subject:message-id; bh=deEFSUhsRdIX0bdzxWoQYKSiKJBAsZhcTOjbVXT5+ls=; b=owGbwMvMwCHWx5hUnlvL8Y3xtFoSQ9q5XbEKPQVKN+QOfCnd/vQAx7Mm0aicnIfvMk/aT/p2R eLJrUMHOkpZGMQ4GGTFFFl4rjUwt97RLzsqWjYBZg4rE8gQBi5OAZiI/GeGP5ySTrLnNmwQmXLz 8w+bnE++e2VFjGTvdAadNPbzvHntw1tGhs53DbPX/utm9fCf+JHzi+Xvmwkm0w5eV/OMyrFcaSf ykBcA X-Developer-Key: i=charlie@rivosinc.com; a=openpgp; fpr=7D834FF11B1D8387E61C776FFB10D1F27D6B1354 The flag and len param is required in arch_get_mmap_base() to implement MAP_BELOW_HINT. Signed-off-by: Charlie Jenkins --- arch/arm64/include/asm/processor.h | 2 +- arch/powerpc/include/asm/task_size_64.h | 2 +- arch/riscv/include/asm/processor.h | 2 +- fs/hugetlbfs/inode.c | 2 +- include/linux/sched/mm.h | 2 +- mm/mmap.c | 2 +- 6 files changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index f77371232d8c..a67ca119bb91 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -95,7 +95,7 @@ #define arch_get_mmap_end(addr, len, flags) \ (((addr) > DEFAULT_MAP_WINDOW) ? TASK_SIZE : DEFAULT_MAP_WINDOW) -#define arch_get_mmap_base(addr, base) ((addr > DEFAULT_MAP_WINDOW) ? \ +#define arch_get_mmap_base(addr, len, base, flags) ((addr > DEFAULT_MAP_WINDOW) ? \ base + TASK_SIZE - DEFAULT_MAP_WINDOW :\ base) #endif /* CONFIG_ARM64_FORCE_52BIT */ diff --git a/arch/powerpc/include/asm/task_size_64.h b/arch/powerpc/include/asm/task_size_64.h index 5a709951c901..239b363841aa 100644 --- a/arch/powerpc/include/asm/task_size_64.h +++ b/arch/powerpc/include/asm/task_size_64.h @@ -72,7 +72,7 @@ #define STACK_TOP_MAX TASK_SIZE_USER64 #define STACK_TOP (is_32bit_task() ? STACK_TOP_USER32 : STACK_TOP_USER64) -#define arch_get_mmap_base(addr, base) \ +#define arch_get_mmap_base(addr, len, base, flags) \ (((addr) > DEFAULT_MAP_WINDOW) ? (base) + TASK_SIZE - DEFAULT_MAP_WINDOW : (base)) #define arch_get_mmap_end(addr, len, flags) \ diff --git a/arch/riscv/include/asm/processor.h b/arch/riscv/include/asm/processor.h index 1015f2a49917..7ff559bf46f2 100644 --- a/arch/riscv/include/asm/processor.h +++ b/arch/riscv/include/asm/processor.h @@ -19,7 +19,7 @@ STACK_TOP_MAX; \ }) -#define arch_get_mmap_base(addr, base, flags) \ +#define arch_get_mmap_base(addr, len, base, flags) \ ({ \ base; \ }) diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 9f6cff356796..05a52f85dba9 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -195,7 +195,7 @@ hugetlb_get_unmapped_area_topdown(struct file *file, unsigned long addr, info.flags = VM_UNMAPPED_AREA_TOPDOWN; info.length = len; info.low_limit = PAGE_SIZE; - info.high_limit = arch_get_mmap_base(addr, current->mm->mmap_base); + info.high_limit = arch_get_mmap_base(addr, len, current->mm->mmap_base, flags); info.align_mask = PAGE_MASK & ~huge_page_mask(h); addr = vm_unmapped_area(&info); diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h index 91546493c43d..265b43855d0b 100644 --- a/include/linux/sched/mm.h +++ b/include/linux/sched/mm.h @@ -174,7 +174,7 @@ static inline void mm_update_next_owner(struct mm_struct *mm) #endif #ifndef arch_get_mmap_base -#define arch_get_mmap_base(addr, base) (base) +#define arch_get_mmap_base(addr, len, base, flags) (base) #endif extern void arch_pick_mmap_layout(struct mm_struct *mm, diff --git a/mm/mmap.c b/mm/mmap.c index d0dfc85b209b..27a7f2be3f68 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1861,7 +1861,7 @@ generic_get_unmapped_area_topdown(struct file *filp, unsigned long addr, info.flags = VM_UNMAPPED_AREA_TOPDOWN; info.length = len; info.low_limit = PAGE_SIZE; - info.high_limit = arch_get_mmap_base(addr, mm->mmap_base); + info.high_limit = arch_get_mmap_base(addr, len, mm->mmap_base, flags); addr = vm_unmapped_area(&info); /*