From: Christoph Hellwig <hch@infradead.org>
To: Shivank Garg <shivankg@amd.com>
Cc: seanjc@google.com, david@redhat.com, vbabka@suse.cz,
willy@infradead.org, akpm@linux-foundation.org, shuah@kernel.org,
pbonzini@redhat.com, ackerleytng@google.com, paul@paul-moore.com,
jmorris@namei.org, serge@hallyn.com, pvorel@suse.cz,
bfoster@redhat.com, tabba@google.com, vannapurve@google.com,
chao.gao@intel.com, bharata@amd.com, nikunj@amd.com,
michael.day@amd.com, yan.y.zhao@intel.com,
Neeraj.Upadhyay@amd.com, thomas.lendacky@amd.com,
michael.roth@amd.com, aik@amd.com, jgg@nvidia.com,
kalyazin@amazon.com, peterx@redhat.com,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org,
linux-security-module@vger.kernel.org, kvm@vger.kernel.org,
linux-kselftest@vger.kernel.org, linux-coco@lists.linux.dev
Subject: Re: [PATCH RFC v7 3/8] security: Export security_inode_init_security_anon for KVM guest_memfd
Date: Thu, 10 Apr 2025 01:41:54 -0700 [thread overview]
Message-ID: <Z_eEUrkyq1NApL1U@infradead.org> (raw)
In-Reply-To: <20250408112402.181574-4-shivankg@amd.com>
On Tue, Apr 08, 2025 at 11:23:57AM +0000, Shivank Garg wrote:
> KVM guest_memfd is implementing its own inodes to store metadata for
> backing memory using a custom filesystem. This requires the ability to
> initialize anonymous inode using security_inode_init_security_anon().
>
> As guest_memfd currently resides in the KVM module, we need to export this
> symbol for use outside the core kernel. In the future, guest_memfd might be
> moved to core-mm, at which point the symbols no longer would have to be
> exported. When/if that happens is still unclear.
This really should be a EXPORT_SYMBOL_GPL, if at all.
But you really should look into a new interface in anon_inode.c that
can be reused instead of duplicating anonymouns inode logic in kvm.ko.
next prev parent reply other threads:[~2025-04-10 8:42 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-08 11:23 [PATCH RFC v7 0/8] Add NUMA mempolicy support for KVM guest-memfd Shivank Garg
2025-04-08 11:23 ` [PATCH RFC v7 1/8] mm/filemap: Add mempolicy support to the filemap layer Shivank Garg
2025-04-08 11:23 ` [PATCH RFC v7 2/8] mm/mempolicy: Export memory policy symbols Shivank Garg
2025-04-08 11:23 ` [PATCH RFC v7 3/8] security: Export security_inode_init_security_anon for KVM guest_memfd Shivank Garg
2025-04-09 20:19 ` Paul Moore
2025-04-11 6:07 ` Shivank Garg
2025-04-22 16:49 ` David Hildenbrand
2025-04-10 8:41 ` Christoph Hellwig [this message]
2025-04-11 6:51 ` Shivank Garg
2025-04-22 17:25 ` David Hildenbrand
2025-05-08 6:37 ` Shivank Garg
2025-04-08 11:23 ` [PATCH RFC v7 4/8] KVM: Add kvm_gmem_exit() cleanup function Shivank Garg
2025-04-08 11:23 ` [PATCH RFC v7 5/8] KVM: guest_memfd: Make guest mem use guest mem inodes instead of anonymous inodes Shivank Garg
2025-04-10 8:42 ` Christoph Hellwig
2025-04-10 13:53 ` Ackerley Tng
2025-04-10 14:23 ` Christoph Hellwig
2025-04-08 11:24 ` [PATCH RFC v7 6/8] KVM: guest_memfd: Add slab-allocated inode cache Shivank Garg
2025-04-08 11:24 ` [PATCH RFC v7 7/8] KVM: guest_memfd: Enforce NUMA mempolicy using shared policy Shivank Garg
2025-04-10 13:40 ` Ackerley Tng
2025-04-11 6:42 ` Shivank Garg
2025-04-08 11:24 ` [PATCH RFC v7 8/8] KVM: guest_memfd: selftests: Add tests for mmap and NUMA policy support Shivank Garg
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