From: Song Liu <song@kernel.org>
To: <bpf@vger.kernel.org>, <netdev@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Cc: <ast@kernel.org>, <daniel@iogearbox.net>, <andrii@kernel.org>,
<kernel-team@fb.com>, <peterz@infradead.org>, <x86@kernel.org>,
Song Liu <songliubraving@fb.com>
Subject: [PATCH v6 bpf-next 1/7] x86/Kconfig: select HAVE_ARCH_HUGE_VMALLOC with HAVE_ARCH_HUGE_VMAP
Date: Fri, 21 Jan 2022 11:49:20 -0800 [thread overview]
Message-ID: <20220121194926.1970172-2-song@kernel.org> (raw)
In-Reply-To: <20220121194926.1970172-1-song@kernel.org>
From: Song Liu <songliubraving@fb.com>
This enables module_alloc() to allocate huge page for 2MB+ requests.
To check the difference of this change, we need enable config
CONFIG_PTDUMP_DEBUGFS, and call module_alloc(2MB). Before the change,
/sys/kernel/debug/page_tables/kernel shows pte for this map. With the
change, /sys/kernel/debug/page_tables/ show pmd for thie map.
Signed-off-by: Song Liu <songliubraving@fb.com>
---
arch/x86/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 8910b09b5601..b5d1582ea848 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -158,6 +158,7 @@ config X86
select HAVE_ALIGNED_STRUCT_PAGE if SLUB
select HAVE_ARCH_AUDITSYSCALL
select HAVE_ARCH_HUGE_VMAP if X86_64 || X86_PAE
+ select HAVE_ARCH_HUGE_VMALLOC if HAVE_ARCH_HUGE_VMAP
select HAVE_ARCH_JUMP_LABEL
select HAVE_ARCH_JUMP_LABEL_RELATIVE
select HAVE_ARCH_KASAN if X86_64
--
2.30.2
next prev parent reply other threads:[~2022-01-21 19:49 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-21 19:49 [PATCH v6 bpf-next 0/7] bpf_prog_pack allocator Song Liu
2022-01-21 19:49 ` Song Liu [this message]
2022-01-21 19:49 ` [PATCH v6 bpf-next 2/7] bpf: use bytes instead of pages for bpf_jit_[charge|uncharge]_modmem Song Liu
2022-01-21 19:49 ` [PATCH v6 bpf-next 3/7] bpf: use size instead of pages in bpf_binary_header Song Liu
2022-01-21 19:49 ` [PATCH v6 bpf-next 4/7] bpf: add a pointer of bpf_binary_header to bpf_prog Song Liu
2022-01-21 19:49 ` [PATCH v6 bpf-next 5/7] x86/alternative: introduce text_poke_copy Song Liu
2022-01-21 19:49 ` [PATCH v6 bpf-next 6/7] bpf: introduce bpf_prog_pack allocator Song Liu
2022-01-21 23:55 ` Alexei Starovoitov
2022-01-22 0:23 ` Song Liu
2022-01-22 0:41 ` Alexei Starovoitov
2022-01-22 1:01 ` Song Liu
2022-01-22 1:12 ` Alexei Starovoitov
2022-01-22 1:30 ` Song Liu
2022-01-22 2:12 ` Alexei Starovoitov
2022-01-23 1:03 ` Song Liu
2022-01-24 12:29 ` Ilya Leoshkevich
2022-01-24 18:27 ` Song Liu
2022-01-25 5:21 ` Alexei Starovoitov
2022-01-25 7:21 ` Song Liu
2022-01-25 19:59 ` Alexei Starovoitov
2022-01-25 22:25 ` Song Liu
2022-01-25 22:48 ` Alexei Starovoitov
2022-01-25 23:09 ` Song Liu
2022-01-26 0:38 ` Alexei Starovoitov
2022-01-26 0:50 ` Song Liu
2022-01-26 1:20 ` Alexei Starovoitov
2022-01-26 1:28 ` Song Liu
2022-01-26 1:31 ` Song Liu
2022-01-26 1:34 ` Alexei Starovoitov
2022-01-24 12:45 ` Peter Zijlstra
2022-01-21 19:49 ` [PATCH v6 bpf-next 7/7] bpf, x86_64: use " Song Liu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220121194926.1970172-2-song@kernel.org \
--to=song@kernel.org \
--cc=andrii@kernel.org \
--cc=ast@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=daniel@iogearbox.net \
--cc=kernel-team@fb.com \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=peterz@infradead.org \
--cc=songliubraving@fb.com \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.