From: Rik van Riel <riel@fb.com>
To: "linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"song@kernel.org" <song@kernel.org>,
"bpf@vger.kernel.org" <bpf@vger.kernel.org>
Cc: "rick.p.edgecombe@intel.com" <rick.p.edgecombe@intel.com>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"daniel@iogearbox.net" <daniel@iogearbox.net>,
"hch@infradead.org" <hch@infradead.org>,
"mcgrof@kernel.org" <mcgrof@kernel.org>,
"ast@kernel.org" <ast@kernel.org>,
Kernel Team <Kernel-team@fb.com>,
"imbrenda@linux.ibm.com" <imbrenda@linux.ibm.com>
Subject: Re: [PATCH v4 bpf 3/4] module: introduce module_alloc_huge
Date: Fri, 15 Apr 2022 18:06:22 +0000 [thread overview]
Message-ID: <34e1ae46cec25811cc821f0d9ee2b9e382d1c42e.camel@fb.com> (raw)
In-Reply-To: <20220415164413.2727220-4-song@kernel.org>
On Fri, 2022-04-15 at 09:44 -0700, Song Liu wrote:
> Introduce module_alloc_huge, which allocates huge page backed memory
> in
> module memory space. The primary user of this memory is bpf_prog_pack
> (multiple BPF programs sharing a huge page).
>
> Signed-off-by: Song Liu <song@kernel.org>
Looks like the BPF might end up being the only user.
On my system I don't see one single kernel module that is
large enough to use an entire hugepage.
Oh well, it's a simple enough interface...
Reviewed-by: Rik van Riel <riel@surriel.com>
next prev parent reply other threads:[~2022-04-15 18:06 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20220415164413.2727220-1-song@kernel.org>
[not found] ` <20220415164413.2727220-2-song@kernel.org>
2022-04-15 17:43 ` [PATCH v4 bpf 1/4] vmalloc: replace VM_NO_HUGE_VMAP with VM_ALLOW_HUGE_VMAP Rik van Riel
[not found] ` <20220415164413.2727220-3-song@kernel.org>
2022-04-15 17:43 ` [PATCH v4 bpf 2/4] page_alloc: use vmalloc_huge for large system hash Rik van Riel
2022-04-25 7:07 ` Geert Uytterhoeven
2022-04-25 8:17 ` Linus Torvalds
2022-04-25 8:24 ` Geert Uytterhoeven
[not found] ` <20220415164413.2727220-4-song@kernel.org>
2022-04-15 18:06 ` Rik van Riel [this message]
2022-06-16 16:10 ` [PATCH v4 bpf 3/4] module: introduce module_alloc_huge Dave Hansen
2022-04-15 19:05 ` [PATCH v4 bpf 0/4] vmalloc: bpf: introduce VM_ALLOW_HUGE_VMAP Luis Chamberlain
2022-04-16 1:34 ` Song Liu
2022-04-16 1:42 ` Luis Chamberlain
2022-04-16 1:43 ` Luis Chamberlain
2022-04-16 5:08 ` Christoph Hellwig
2022-04-16 19:55 ` Song Liu
2022-04-16 20:30 ` Linus Torvalds
2022-04-16 22:26 ` Song Liu
2022-04-18 10:06 ` Mike Rapoport
2022-04-19 0:44 ` Luis Chamberlain
2022-04-19 1:56 ` Edgecombe, Rick P
2022-04-19 5:36 ` Song Liu
2022-04-19 18:42 ` Mike Rapoport
2022-04-19 19:20 ` Linus Torvalds
2022-04-20 2:03 ` Alexei Starovoitov
2022-04-20 2:18 ` Linus Torvalds
2022-04-20 14:42 ` Song Liu
2022-04-20 18:28 ` Luis Chamberlain
2022-04-21 3:25 ` Nicholas Piggin
2022-04-21 5:48 ` Linus Torvalds
2022-04-21 6:02 ` Linus Torvalds
2022-04-21 9:07 ` Nicholas Piggin
2022-04-21 8:57 ` Nicholas Piggin
2022-04-21 15:44 ` Linus Torvalds
2022-04-21 23:30 ` Nicholas Piggin
2022-04-22 0:49 ` Linus Torvalds
2022-04-22 1:51 ` Nicholas Piggin
2022-04-22 2:31 ` Linus Torvalds
2022-04-22 2:57 ` Nicholas Piggin
2022-04-21 15:47 ` Edgecombe, Rick P
2022-04-21 16:15 ` Linus Torvalds
2022-04-22 0:12 ` Nicholas Piggin
2022-04-22 2:29 ` Edgecombe, Rick P
2022-04-22 2:47 ` Linus Torvalds
2022-04-22 16:54 ` Edgecombe, Rick P
2022-04-22 3:08 ` Nicholas Piggin
2022-04-22 4:31 ` Nicholas Piggin
2022-04-22 17:10 ` Edgecombe, Rick P
2022-04-22 20:22 ` Edgecombe, Rick P
2022-04-22 3:33 ` Nicholas Piggin
2022-04-21 9:47 ` Nicholas Piggin
2022-04-19 21:24 ` Luis Chamberlain
2022-04-19 23:58 ` Edgecombe, Rick P
2022-04-20 7:58 ` Petr Mladek
2022-04-19 18:20 ` Mike Rapoport
2022-04-24 17:43 ` Linus Torvalds
2022-04-25 6:48 ` Song Liu
2022-04-21 3:19 ` Nicholas Piggin
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