Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object

[PATCH bpf-next 00/29] BPF token · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 03/29] bpf: introduce BPF token object · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Linus Torvalds <torvalds@linuxfoundation.org> · 2024-01-05
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Matthew Wilcox <willy@infradead.org> · 2024-01-05
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Linus Torvalds <torvalds@linuxfoundation.org> · 2024-01-05
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Andrii Nakryiko <hidden> · 2024-01-05
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Andrii Nakryiko <hidden> · 2024-01-05
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Alexei Starovoitov <hidden> · 2024-01-05
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Linus Torvalds <torvalds@linuxfoundation.org> · 2024-01-05
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Andrii Nakryiko <hidden> · 2024-01-05
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Christian Brauner <brauner@kernel.org> · 2024-01-08
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Andrii Nakryiko <hidden> · 2024-01-08
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Christian Brauner <brauner@kernel.org> · 2024-01-09
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Andrii Nakryiko <hidden> · 2024-01-09
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Christian Brauner <brauner@kernel.org> · 2024-01-10
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Andrii Nakryiko <hidden> · 2024-01-11
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Christian Brauner <brauner@kernel.org> · 2024-01-11
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Andrii Nakryiko <hidden> · 2024-01-11
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Christian Brauner <brauner@kernel.org> · 2024-01-12
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Andrii Nakryiko <hidden> · 2024-01-12
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Christian Brauner <brauner@kernel.org> · 2024-01-12
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Andrii Nakryiko <hidden> · 2024-01-14
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Christian Brauner <brauner@kernel.org> · 2024-01-16
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Christian Brauner <brauner@kernel.org> · 2024-01-08
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Paul Moore <paul@paul-moore.com> · 2024-01-08
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Andrii Nakryiko <hidden> · 2024-01-09
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Paul Moore <paul@paul-moore.com> · 2024-01-10
Re: [PATCH bpf-next 03/29] bpf: introduce BPF token object · Christian Brauner <brauner@kernel.org> · 2024-01-08
[PATCH bpf-next 07/29] bpf: take into account BPF token when fetching helper protos · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 02/29] bpf: add BPF token delegation mount options to BPF FS · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 01/29] bpf: align CAP_NET_ADMIN checks with bpf_capable() approach · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 04/29] bpf: add BPF token support to BPF_MAP_CREATE command · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 10/29] bpf,lsm: refactor bpf_map_alloc/bpf_map_free LSM hooks · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 06/29] bpf: add BPF token support to BPF_PROG_LOAD command · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 11/29] bpf,lsm: add BPF token LSM hooks · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 05/29] bpf: add BPF token support to BPF_BTF_LOAD command · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 09/29] bpf,lsm: refactor bpf_prog_alloc/bpf_prog_free LSM hooks · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 08/29] bpf: consistently use BPF token throughout BPF verifier logic · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 17/29] bpf,selinux: allocate bpf_security_struct per BPF token · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 12/29] libbpf: add bpf_token_create() API · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 19/29] bpf: support symbolic BPF FS delegation mount options · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 25/29] libbpf: wire up BPF token support at BPF object level · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 22/29] libbpf: further decouple feature checking logic from bpf_object · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 18/29] bpf: fail BPF_TOKEN_CREATE if no delegation option was set on BPF FS · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 13/29] libbpf: add BPF token support to bpf_map_create() API · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
Re: [PATCH bpf-next 13/29] libbpf: add BPF token support to bpf_map_create() API · Linus Torvalds <torvalds@linuxfoundation.org> · 2024-01-04
Re: [PATCH bpf-next 13/29] libbpf: add BPF token support to bpf_map_create() API · Andrii Nakryiko <hidden> · 2024-01-04
[PATCH bpf-next 21/29] libbpf: split feature detectors definitions from cached results · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 16/29] selftests/bpf: add BPF token-enabled tests · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 15/29] libbpf: add BPF token support to bpf_prog_load() API · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 24/29] libbpf: wire up token_fd into feature probing logic · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 23/29] libbpf: move feature detection code into its own file · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 14/29] libbpf: add BPF token support to bpf_btf_load() API · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 20/29] selftests/bpf: utilize string values for delegate_xxx mount options · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 28/29] libbpf: support BPF token path setting through LIBBPF_BPF_TOKEN_PATH envvar · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 26/29] selftests/bpf: add BPF object loading tests with explicit token passing · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 29/29] selftests/bpf: add tests for LIBBPF_BPF_TOKEN_PATH envvar · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
[PATCH bpf-next 27/29] selftests/bpf: add tests for BPF object load with implicit token · Andrii Nakryiko <andrii@kernel.org> · 2024-01-03
Re: [PATCH bpf-next 00/29] BPF token · Jakub Kicinski <kuba@kernel.org> · 2024-01-03

From: Linus Torvalds <torvalds@linuxfoundation.org>
Date: 2024-01-05 20:46:17
Also in: bpf, linux-fsdevel, linux-security-module

On Fri, 5 Jan 2024 at 12:32, Matthew Wilcox [off-list ref] wrote:

I can't tell from the description whether there are going to be a lot of
these.  If there are, it might make sense to create a slab cache for
them rather than get them from the general-purpose kmalloc caches.

I suspect it's a "count on the fingers of your hand" thing, and having
a slab cache would be more overhead than you'd ever win.

           Linus

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