Message ID | 20240103160024.70305-4-leobras@redhat.com (mailing list archive) |
---|---|
State | New |
Headers | show
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Wed, 03 Jan 2024 08:01:04 -0800 (PST) X-Google-Smtp-Source: AGHT+IFuVYYxexaKDE814y1fhNTdPHZYP8ZdcRM5q6bVvyRs+hK/lDTBPjjZPxt/iJQ3BUyAPZfgHQ== X-Received: by 2002:a17:90a:cc18:b0:28b:157c:e48d with SMTP id b24-20020a17090acc1800b0028b157ce48dmr6484861pju.78.1704297663874; Wed, 03 Jan 2024 08:01:03 -0800 (PST) Received: from localhost.localdomain ([2804:431:c7ec:911:6911:ca60:846:eb46]) by smtp.gmail.com with ESMTPSA id qc8-20020a17090b288800b0028b1fce7c01sm1922253pjb.37.2024.01.03.08.00.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Jan 2024 08:01:03 -0800 (PST) From: Leonardo Bras <leobras@redhat.com> To: Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, Albert Ou <aou@eecs.berkeley.edu>, Eric Biederman <ebiederm@xmission.com>, Kees Cook <keescook@chromium.org>, Oleg Nesterov <oleg@redhat.com>, Leonardo Bras <leobras@redhat.com>, Guo Ren <guoren@kernel.org>, Andy Chiu <andy.chiu@sifive.com>, Conor Dooley <conor.dooley@microchip.com>, Xiao Wang <xiao.w.wang@intel.com>, Vincent Chen <vincent.chen@sifive.com>, Charlie Jenkins <charlie@rivosinc.com>, Greg Ungerer <gerg@kernel.org>, Andrew Morton <akpm@linux-foundation.org>, Kemeng Shi <shikemeng@huaweicloud.com>, Alexandre Ghiti <alexghiti@rivosinc.com>, David Hildenbrand <david@redhat.com>, "Matthew Wilcox (Oracle)" <willy@infradead.org>, Qinglin Pan <panqinglin2020@iscas.ac.cn>, Greentime Hu <greentime.hu@sifive.com>, Baoquan He <bhe@redhat.com>, =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= <cleger@rivosinc.com> Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH v1 2/5] riscv: Replace direct thread flag check with is_compat_task() Date: Wed, 3 Jan 2024 13:00:20 -0300 Message-ID: <20240103160024.70305-4-leobras@redhat.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240103160024.70305-2-leobras@redhat.com> References: <20240103160024.70305-2-leobras@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; 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Series |
riscv: Introduce compat-mode helpers & improve arch_get_mmap_end()
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expand
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diff --git a/arch/riscv/include/asm/elf.h b/arch/riscv/include/asm/elf.h index 06c236bfab53b..59a08367fddd7 100644 --- a/arch/riscv/include/asm/elf.h +++ b/arch/riscv/include/asm/elf.h @@ -54,7 +54,7 @@ extern bool compat_elf_check_arch(Elf32_Ehdr *hdr); #ifdef CONFIG_64BIT #ifdef CONFIG_COMPAT -#define STACK_RND_MASK (test_thread_flag(TIF_32BIT) ? \ +#define STACK_RND_MASK (is_compat_task() ? \ 0x7ff >> (PAGE_SHIFT - 12) : \ 0x3ffff >> (PAGE_SHIFT - 12)) #else diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index ab00235b018f8..1d472b31e0cfe 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -882,7 +882,7 @@ static inline pte_t pte_swp_clear_exclusive(pte_t pte) #ifdef CONFIG_COMPAT #define TASK_SIZE_32 (_AC(0x80000000, UL) - PAGE_SIZE) -#define TASK_SIZE (test_thread_flag(TIF_32BIT) ? \ +#define TASK_SIZE (is_compat_task() ? \ TASK_SIZE_32 : TASK_SIZE_64) #else #define TASK_SIZE TASK_SIZE_64
There is some code that detects compat mode into a task by checking the flag directly, and other code that check using the helper is_compat_task(). Since the helper already exists, use it instead of checking the flags directly. Signed-off-by: Leonardo Bras <leobras@redhat.com> --- arch/riscv/include/asm/elf.h | 2 +- arch/riscv/include/asm/pgtable.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)