From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pl0-f69.google.com (mail-pl0-f69.google.com [209.85.160.69]) by kanga.kvack.org (Postfix) with ESMTP id D40B46B0010 for ; Sun, 4 Feb 2018 20:28:07 -0500 (EST) Received: by mail-pl0-f69.google.com with SMTP id l3so9981013pld.8 for ; Sun, 04 Feb 2018 17:28:07 -0800 (PST) Received: from mx2.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id t3si2861529pgr.179.2018.02.04.17.28.06 for (version=TLS1 cipher=AES128-SHA bits=128/128); Sun, 04 Feb 2018 17:28:06 -0800 (PST) From: Davidlohr Bueso Subject: [PATCH 42/64] arch/frv: use mm locking wrappers Date: Mon, 5 Feb 2018 02:27:32 +0100 Message-Id: <20180205012754.23615-43-dbueso@wotan.suse.de> In-Reply-To: <20180205012754.23615-1-dbueso@wotan.suse.de> References: <20180205012754.23615-1-dbueso@wotan.suse.de> Sender: owner-linux-mm@kvack.org List-ID: To: akpm@linux-foundation.org, mingo@kernel.org Cc: peterz@infradead.org, ldufour@linux.vnet.ibm.com, jack@suse.cz, mhocko@kernel.org, kirill.shutemov@linux.intel.com, mawilcox@microsoft.com, mgorman@techsingularity.net, dave@stgolabs.net, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Davidlohr Bueso From: Davidlohr Bueso This becomes quite straightforward with the mmrange in place. Signed-off-by: Davidlohr Bueso --- arch/frv/mm/fault.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/frv/mm/fault.c b/arch/frv/mm/fault.c index 494d33b628fc..a5da0586e6cc 100644 --- a/arch/frv/mm/fault.c +++ b/arch/frv/mm/fault.c @@ -86,7 +86,7 @@ asmlinkage void do_page_fault(int datammu, unsigned long esr0, unsigned long ear if (user_mode(__frame)) flags |= FAULT_FLAG_USER; - down_read(&mm->mmap_sem); + mm_read_lock(mm, &mmrange); vma = find_vma(mm, ear0); if (!vma) @@ -181,7 +181,7 @@ asmlinkage void do_page_fault(int datammu, unsigned long esr0, unsigned long ear else current->min_flt++; - up_read(&mm->mmap_sem); + mm_read_unlock(mm, &mmrange); return; /* @@ -189,7 +189,7 @@ asmlinkage void do_page_fault(int datammu, unsigned long esr0, unsigned long ear * Fix it, but check if it's kernel or user first.. */ bad_area: - up_read(&mm->mmap_sem); + mm_read_unlock(mm, &mmrange); /* User mode accesses just cause a SIGSEGV */ if (user_mode(__frame)) { @@ -259,14 +259,14 @@ asmlinkage void do_page_fault(int datammu, unsigned long esr0, unsigned long ear * us unable to handle the page fault gracefully. */ out_of_memory: - up_read(&mm->mmap_sem); + mm_read_unlock(mm, &mmrange); if (!user_mode(__frame)) goto no_context; pagefault_out_of_memory(); return; do_sigbus: - up_read(&mm->mmap_sem); + mm_read_unlock(mm, &mmrange); /* * Send a sigbus, regardless of whether we were in kernel -- 2.13.6 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org