From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E7AE9245005 for ; Tue, 23 Sep 2025 03:18:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758597503; cv=none; b=EUavZh4XLJZwck0M11fhCTIvdVSJpVL8lI5uGqYdEUU89gRi4xY6k/oxidwZLpP4mWqZPIFTuMT+no8cpX9oHVMaoImH1C36e5eOoLelhQdpHcUHz4QpR8jJGpjS6J2ZC5uTOL5y7vH9jNsXh4yJcL8GFoHH768HDNsF9Z6r18A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758597503; c=relaxed/simple; bh=/yNG+Lx0mSyfepk0soWllhZiG/ehLvKu8SGSpXN7bbg=; h=Date:To:From:Subject:Message-Id; b=E0PdwxN67WYg/cE+CNllkiFvwgPoO2b3XHTrWMR/M2Nya/5BMWFRqGDXu3O7bnTjtpnzDbfc+HBoe72+3zpbWx332HSnBWYCVVqHRnzW9LH53ONmS3qL0fZDf62v7/3BeDS5ZrdtWhSSioYeFCZOaKhKdLZj0BrhZbIFCP5R8fE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=t1pH6NXe; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="t1pH6NXe" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 65CBCC4CEF0; Tue, 23 Sep 2025 03:18:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1758597501; bh=/yNG+Lx0mSyfepk0soWllhZiG/ehLvKu8SGSpXN7bbg=; h=Date:To:From:Subject:From; b=t1pH6NXea/Q7B4wCzE46W7/lHpf6h0ItBiZsqvjVUj7OwPjpRqxefzoE2IW+f6H05 8MssKmVPQ13aB9W7itixIb/CAuIvNZlbiOkfGyZHsp7V8EQFXSXKd5Z7YCcb6GaCti 4UxcBNexqSmsVzPTXpy2LvyabxBT2p42CinV++s8= Date: Mon, 22 Sep 2025 20:18:20 -0700 To: mm-commits@vger.kernel.org,willy@infradead.org,will@kernel.org,vishal.l.verma@intel.com,viro@zeniv.linux.org.uk,vgoyal@redhat.com,vbabka@suse.cz,urezki@gmail.com,tsbogend@alpha.franken.de,tony.luck@intel.com,svens@linux.ibm.com,surenb@google.com,rppt@kernel.org,robin.murphy@arm.com,reinette.chatre@intel.com,pfalcato@suse.de,osalvador@suse.de,nico@fluxnic.net,muchun.song@linux.dev,mhocko@suse.com,liam.howlett@oracle.com,kevin.tian@intel.com,jgg@nvidia.com,jannh@google.com,james.morse@arm.com,jack@suse.cz,hughd@google.com,hca@linux.ibm.com,guoren@kernel.org,gregkh@linuxfoundation.org,gor@linux.ibm.com,dyoung@redhat.com,dvyukov@google.com,david@redhat.com,davem@davemloft.net,dave.martin@arm.com,dave.jiang@intel.com,dan.j.williams@intel.com,corbet@lwn.net,brauner@kernel.org,borntraeger@linux.ibm.com,bhe@redhat.com,baolin.wang@linux.alibaba.com,arnd@arndb.de,andreyknvl@gmail.com,andreas@gaisler.com,almaz.alexandrovich@paragon-software.com,agordeev@linux.ibm.com,lorenzo.stoakes@oracle.com,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-update-resctl-to-use-mmap_prepare.patch removed from -mm tree Message-Id: <20250923031821.65CBCC4CEF0@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: mm: update resctl to use mmap_prepare has been removed from the -mm tree. Its filename was mm-update-resctl-to-use-mmap_prepare.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Lorenzo Stoakes Subject: mm: update resctl to use mmap_prepare Date: Wed, 17 Sep 2025 20:11:16 +0100 Make use of the ability to specify a remap action within mmap_prepare to update the resctl pseudo-lock to use mmap_prepare in favour of the deprecated mmap hook. Link: https://lkml.kernel.org/r/ed05dfdff6f77e33628784b6492f66f347673b50.1758135681.git.lorenzo.stoakes@oracle.com Signed-off-by: Lorenzo Stoakes Acked-by: Reinette Chatre Reviewed-by: Jason Gunthorpe Cc: Alexander Gordeev Cc: Al Viro Cc: Andreas Larsson Cc: Andrey Konovalov Cc: Arnd Bergmann Cc: Baolin Wang Cc: Baoquan He Cc: Christian Borntraeger Cc: Christian Brauner Cc: Dan Williams Cc: Dave Jiang Cc: Dave Martin Cc: Dave Young Cc: David Hildenbrand Cc: David S. Miller Cc: Dmitriy Vyukov Cc: Greg Kroah-Hartman Cc: Guo Ren Cc: Heiko Carstens Cc: Hugh Dickins Cc: James Morse Cc: Jan Kara Cc: Jann Horn Cc: Jonathan Corbet Cc: Kevin Tian Cc: Konstantin Komarov Cc: Liam Howlett Cc: "Luck, Tony" Cc: Matthew Wilcox (Oracle) Cc: Michal Hocko Cc: Mike Rapoport Cc: Muchun Song Cc: Nicolas Pitre Cc: Oscar Salvador Cc: Pedro Falcato Cc: Robin Murohy Cc: Suren Baghdasaryan Cc: Sven Schnelle Cc: Thomas Bogendoerfer Cc: "Uladzislau Rezki (Sony)" Cc: Vasily Gorbik Cc: Vishal Verma Cc: Vivek Goyal Cc: Vlastimil Babka Cc: Will Deacon Signed-off-by: Andrew Morton --- fs/resctrl/pseudo_lock.c | 20 +++++++++----------- 1 file changed, 9 insertions(+), 11 deletions(-) --- a/fs/resctrl/pseudo_lock.c~mm-update-resctl-to-use-mmap_prepare +++ a/fs/resctrl/pseudo_lock.c @@ -995,10 +995,11 @@ static const struct vm_operations_struct .mremap = pseudo_lock_dev_mremap, }; -static int pseudo_lock_dev_mmap(struct file *filp, struct vm_area_struct *vma) +static int pseudo_lock_dev_mmap_prepare(struct vm_area_desc *desc) { - unsigned long vsize = vma->vm_end - vma->vm_start; - unsigned long off = vma->vm_pgoff << PAGE_SHIFT; + unsigned long off = desc->pgoff << PAGE_SHIFT; + unsigned long vsize = vma_desc_size(desc); + struct file *filp = desc->file; struct pseudo_lock_region *plr; struct rdtgroup *rdtgrp; unsigned long physical; @@ -1043,7 +1044,7 @@ static int pseudo_lock_dev_mmap(struct f * Ensure changes are carried directly to the memory being mapped, * do not allow copy-on-write mapping. */ - if (!(vma->vm_flags & VM_SHARED)) { + if (!(desc->vm_flags & VM_SHARED)) { mutex_unlock(&rdtgroup_mutex); return -EINVAL; } @@ -1055,12 +1056,9 @@ static int pseudo_lock_dev_mmap(struct f memset(plr->kmem + off, 0, vsize); - if (remap_pfn_range(vma, vma->vm_start, physical + vma->vm_pgoff, - vsize, vma->vm_page_prot)) { - mutex_unlock(&rdtgroup_mutex); - return -EAGAIN; - } - vma->vm_ops = &pseudo_mmap_ops; + desc->vm_ops = &pseudo_mmap_ops; + mmap_action_remap_full(desc, physical + desc->pgoff); + mutex_unlock(&rdtgroup_mutex); return 0; } @@ -1071,7 +1069,7 @@ static const struct file_operations pseu .write = NULL, .open = pseudo_lock_dev_open, .release = pseudo_lock_dev_release, - .mmap = pseudo_lock_dev_mmap, + .mmap_prepare = pseudo_lock_dev_mmap_prepare, }; int rdt_pseudo_lock_init(void) _ Patches currently in -mm which might be from lorenzo.stoakes@oracle.com are