From patchwork Wed Sep 30 17:51:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11809991 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1DB1F618 for ; Wed, 30 Sep 2020 17:52:24 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id D674E20706 for ; Wed, 30 Sep 2020 17:52:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="o71az0TA" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D674E20706 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 1F64590000B; Wed, 30 Sep 2020 13:52:07 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 0B94E900007; Wed, 30 Sep 2020 13:52:07 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E71EF90000B; Wed, 30 Sep 2020 13:52:06 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0235.hostedemail.com [216.40.44.235]) by kanga.kvack.org (Postfix) with ESMTP id CC233900007 for ; Wed, 30 Sep 2020 13:52:06 -0400 (EDT) Received: from smtpin22.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 8AF148249980 for ; Wed, 30 Sep 2020 17:52:06 +0000 (UTC) X-FDA: 77320471452.22.bag80_1f0696b27194 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin22.hostedemail.com (Postfix) with ESMTP id 6519F18038E67 for ; Wed, 30 Sep 2020 17:52:06 +0000 (UTC) X-Spam-Summary: 1,0,0,d41f2726fee1c244,d41d8cd98f00b204,batv+fa6e45c137c1199df5c4+6247+infradead.org+hch@casper.srs.infradead.org,,RULES_HIT:41:69:355:379:541:800:960:966:968:988:989:1260:1311:1314:1345:1359:1437:1515:1535:1543:1711:1730:1747:1777:1792:2196:2199:2393:2559:2562:2899:3138:3139:3140:3141:3142:3355:3865:3866:3867:3868:3870:3871:3874:4250:4321:4385:4605:5007:6261:6653:6742:7875:8603:9592:10004:11026:11232:11473:11658:11914:12043:12160:12296:12297:12438:12517:12519:12555:12683:12895:12986:13894:14096:14110:14181:14394:14721:21080:21324:21451:21627:21990:30003:30054,0,RBL:90.155.50.34:@casper.srs.infradead.org:.lbl8.mailshell.net-64.201.201.201 62.8.15.100;04y8xncchiegyhpqep9zotf6imtpzopmn7pjhc4zxb68eqjm4ezic9zfs1riyue.6nrd3hbaiwnmaxde6ukqeoo7mxk4muj3hoamiwx14848iy6ihyjiaefytgryctu.n-lbl8.mailshell.net-223.238.255.100,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fn,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:24,LUA_SUMMARY:none X-HE-Tag: bag80_1f0696b27194 X-Filterd-Recvd-Size: 5542 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf27.hostedemail.com (Postfix) with ESMTP for ; Wed, 30 Sep 2020 17:52:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=ix+nhROFgS2R/TvryqxFuXEm6pOX6uuPKFVKed32kPg=; b=o71az0TAGIt+o23t9vEEPg9kBX 49t5J7kjHFOTFFFV1reywEKaB+iF5d6lYqgVAc7lLH43QPfngUbCNFDu6idG354NtO0I20tYUmc/S ZNAXVCDrReTupKXsw6F5l3EHk46VQsKDWXEuoaEZwsGrnxoyazLXMES+Zm9kzi1lpuCrDw+OOKSKn N9e7DoOAmhqH/Xf3idF4DAirJzTM4dZVdj0+5Xss/2Veo4YkuL/fEADv9DU6/Q4fO8Mv09yhcRXRO AJrpiNZlL0BIfp1/UyxfaKevrL7DT2VegvYl4HXyjB6G5Xg6D8J438SNVin3yQs9fbhbLooyU+aY6 Vr5NdFSA==; Received: from [2001:4bb8:180:7b62:c70:4a89:bc61:4] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kNgGc-0001DO-6R; Wed, 30 Sep 2020 17:51:50 +0000 From: Christoph Hellwig To: Andrew Morton Cc: Peter Zijlstra , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , Jani Nikula , Joonas Lahtinen , Tvrtko Ursulin , Chris Wilson , Matthew Auld , Rodrigo Vivi , Minchan Kim , Matthew Wilcox , Nitin Gupta , x86@kernel.org, xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-mm@kvack.org Subject: [PATCH 10/10] mm: remove alloc_vm_area Date: Wed, 30 Sep 2020 19:51:33 +0200 Message-Id: <20200930175133.1252382-11-hch@lst.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200930175133.1252382-1-hch@lst.de> References: <20200930175133.1252382-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html 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: All users are gone now. Signed-off-by: Christoph Hellwig --- include/linux/vmalloc.h | 5 +---- mm/nommu.c | 7 ------ mm/vmalloc.c | 48 ----------------------------------------- 3 files changed, 1 insertion(+), 59 deletions(-) diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index c77efeac242514..938eaf9517e266 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -169,6 +169,7 @@ extern struct vm_struct *__get_vm_area_caller(unsigned long size, unsigned long flags, unsigned long start, unsigned long end, const void *caller); +void free_vm_area(struct vm_struct *area); extern struct vm_struct *remove_vm_area(const void *addr); extern struct vm_struct *find_vm_area(const void *addr); @@ -204,10 +205,6 @@ static inline void set_vm_flush_reset_perms(void *addr) } #endif -/* Allocate/destroy a 'vmalloc' VM area. */ -extern struct vm_struct *alloc_vm_area(size_t size, pte_t **ptes); -extern void free_vm_area(struct vm_struct *area); - /* for /dev/kmem */ extern long vread(char *buf, char *addr, unsigned long count); extern long vwrite(char *buf, char *addr, unsigned long count); diff --git a/mm/nommu.c b/mm/nommu.c index 75a327149af127..9272f30e4c4726 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -354,13 +354,6 @@ void vm_unmap_aliases(void) } EXPORT_SYMBOL_GPL(vm_unmap_aliases); -struct vm_struct *alloc_vm_area(size_t size, pte_t **ptes) -{ - BUG(); - return NULL; -} -EXPORT_SYMBOL_GPL(alloc_vm_area); - void free_vm_area(struct vm_struct *area) { BUG(); diff --git a/mm/vmalloc.c b/mm/vmalloc.c index e2a2ded8d93478..3bc5b832451ef2 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -3083,54 +3083,6 @@ int remap_vmalloc_range(struct vm_area_struct *vma, void *addr, } EXPORT_SYMBOL(remap_vmalloc_range); -static int f(pte_t *pte, unsigned long addr, void *data) -{ - pte_t ***p = data; - - if (p) { - *(*p) = pte; - (*p)++; - } - return 0; -} - -/** - * alloc_vm_area - allocate a range of kernel address space - * @size: size of the area - * @ptes: returns the PTEs for the address space - * - * Returns: NULL on failure, vm_struct on success - * - * This function reserves a range of kernel address space, and - * allocates pagetables to map that range. No actual mappings - * are created. - * - * If @ptes is non-NULL, pointers to the PTEs (in init_mm) - * allocated for the VM area are returned. - */ -struct vm_struct *alloc_vm_area(size_t size, pte_t **ptes) -{ - struct vm_struct *area; - - area = get_vm_area_caller(size, VM_IOREMAP, - __builtin_return_address(0)); - if (area == NULL) - return NULL; - - /* - * This ensures that page tables are constructed for this region - * of kernel virtual address space and mapped into init_mm. - */ - if (apply_to_page_range(&init_mm, (unsigned long)area->addr, - size, f, ptes ? &ptes : NULL)) { - free_vm_area(area); - return NULL; - } - - return area; -} -EXPORT_SYMBOL_GPL(alloc_vm_area); - void free_vm_area(struct vm_struct *area) { struct vm_struct *ret;