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>,
<iii@linux.ibm.com>, Song Liu <songliubraving@fb.com>
Subject: [PATCH v9 bpf-next 1/9] x86/Kconfig: select HAVE_ARCH_HUGE_VMALLOC with HAVE_ARCH_HUGE_VMAP
Date: Fri, 4 Feb 2022 10:57:34 -0800 [thread overview]
Message-ID: <20220204185742.271030-2-song@kernel.org> (raw)
In-Reply-To: <20220204185742.271030-1-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 6fddb63271d9..e0e0d00cf103 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -159,6 +159,7 @@ 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:[~2022-02-04 19:01 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-04 18:57 [PATCH v9 bpf-next 0/9] bpf_prog_pack allocator Song Liu
2022-02-04 18:57 ` Song Liu [this message]
2022-03-26 0:06 ` [PATCH v9 bpf-next 1/9] x86/Kconfig: select HAVE_ARCH_HUGE_VMALLOC with HAVE_ARCH_HUGE_VMAP Edgecombe, Rick P
2022-03-28 23:27 ` Song Liu
2022-03-29 0:18 ` Edgecombe, Rick P
2022-03-29 8:23 ` Song Liu
2022-03-29 18:39 ` Edgecombe, Rick P
2022-03-29 19:13 ` Song Liu
2022-03-29 21:36 ` Edgecombe, Rick P
2022-03-29 22:12 ` Song Liu
[not found] ` <14444103-d51b-0fb3-ee63-c3f182f0b546@molgen.mpg.de>
2022-03-27 10:36 ` BUG: Bad page state in process systemd-udevd (was: [PATCH v9 bpf-next 1/9] x86/Kconfig: select HAVE_ARCH_HUGE_VMALLOC with HAVE_ARCH_HUGE_VMAP) Paul Menzel
[not found] ` <7F597B8E-72B3-402B-BD46-4C7F13A5D7BD@fb.com>
2022-03-28 6:51 ` Paul Menzel
2022-03-28 19:24 ` Song Liu
2022-03-28 20:14 ` Paul Menzel
2022-03-28 21:57 ` Song Liu
2022-03-28 19:21 ` Edgecombe, Rick P
2022-02-04 18:57 ` [PATCH v9 bpf-next 2/9] bpf: use bytes instead of pages for bpf_jit_[charge|uncharge]_modmem Song Liu
2022-02-04 18:57 ` [PATCH v9 bpf-next 3/9] bpf: use size instead of pages in bpf_binary_header Song Liu
2022-02-04 18:57 ` [PATCH v9 bpf-next 4/9] bpf: use prog->jited_len in bpf_prog_ksym_set_addr() Song Liu
2022-02-04 18:57 ` [PATCH v9 bpf-next 5/9] x86/alternative: introduce text_poke_copy Song Liu
2022-02-04 18:57 ` [PATCH v9 bpf-next 6/9] bpf: introduce bpf_arch_text_copy Song Liu
2022-02-04 18:57 ` [PATCH v9 bpf-next 7/9] bpf: introduce bpf_prog_pack allocator Song Liu
2022-02-04 18:57 ` [PATCH v9 bpf-next 8/9] bpf: introduce bpf_jit_binary_pack_[alloc|finalize|free] Song Liu
2022-02-04 18:57 ` [PATCH v9 bpf-next 9/9] bpf, x86_64: use bpf_jit_binary_pack_alloc Song Liu
2022-02-08 2:24 ` Alexei Starovoitov
2022-07-03 3:02 ` Andres Freund
2022-07-03 3:03 ` Alexei Starovoitov
2022-07-03 3:14 ` Andres Freund
2022-02-08 2:30 ` [PATCH v9 bpf-next 0/9] bpf_prog_pack allocator patchwork-bot+netdevbpf
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