From: Mike Rapoport <rppt@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: Rich Felker <dalias@libc.org>,
linux-ia64@vger.kernel.org, linux-doc@vger.kernel.org,
Catalin Marinas <catalin.marinas@arm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Michal Hocko <mhocko@kernel.org>,
"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
Max Filippov <jcmvbkbc@gmail.com>, Guo Ren <guoren@kernel.org>,
linux-csky@vger.kernel.org, linux-parisc@vger.kernel.org,
sparclinux@vger.kernel.org, linux-hexagon@vger.kernel.org,
linux-riscv@lists.infradead.org,
Mike Rapoport <rppt@linux.ibm.com>,
Greg Ungerer <gerg@linux-m68k.org>,
linux-arch@vger.kernel.org, linux-s390@vger.kernel.org,
linux-c6x-dev@linux-c6x.org, Baoquan He <bhe@redhat.com>,
Jonathan Corbet <corbet@lwn.net>,
linux-sh@vger.kernel.org, Michael Ellerman <mpe@ellerman.id.au>,
Helge Deller <deller@gmx.de>,
x86@kernel.org, Russell King <linux@armlinux.org.uk>,
Ley Foon Tan <ley.foon.tan@in>
Subject: [PATCH 21/21] docs/vm: update memory-models documentation
Date: Sun, 12 Apr 2020 22:48:59 +0300 [thread overview]
Message-ID: <20200412194859.12663-22-rppt@kernel.org> (raw)
In-Reply-To: <20200412194859.12663-1-rppt@kernel.org>
From: Mike Rapoport <rppt@linux.ibm.com>
to reflect the updates to free_area_init() family of functions.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
Documentation/vm/memory-model.rst | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/Documentation/vm/memory-model.rst b/Documentation/vm/memory-model.rst
index 58a12376b7df..91228044ed16 100644
--- a/Documentation/vm/memory-model.rst
+++ b/Documentation/vm/memory-model.rst
@@ -46,11 +46,10 @@ maps the entire physical memory. For most architectures, the holes
have entries in the `mem_map` array. The `struct page` objects
corresponding to the holes are never fully initialized.
-To allocate the `mem_map` array, architecture specific setup code
-should call :c:func:`free_area_init_node` function or its convenience
-wrapper :c:func:`free_area_init`. Yet, the mappings array is not
-usable until the call to :c:func:`memblock_free_all` that hands all
-the memory to the page allocator.
+To allocate the `mem_map` array, architecture specific setup code should
+call :c:func:`free_area_init` function. Yet, the mappings array is not
+usable until the call to :c:func:`memblock_free_all` that hands all the
+memory to the page allocator.
If an architecture enables `CONFIG_ARCH_HAS_HOLES_MEMORYMODEL` option,
it may free parts of the `mem_map` array that do not cover the
--
2.25.1
prev parent reply other threads:[~2020-04-12 19:48 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-12 19:48 [PATCH 00/21] mm: rework free_area_init*() funcitons Mike Rapoport
2020-04-12 19:48 ` [PATCH 01/21] mm: memblock: replace dereferences of memblock_region.nid with API calls Mike Rapoport
2020-04-21 2:06 ` Baoquan He
2020-04-12 19:48 ` [PATCH 02/21] mm: make early_pfn_to_nid() and related defintions close to each other Mike Rapoport
2020-04-21 2:24 ` Baoquan He
2020-04-21 8:49 ` Mike Rapoport
2020-04-21 8:49 ` Mike Rapoport
2020-04-21 9:33 ` Baoquan He
2020-04-21 3:31 ` Baoquan He
2020-04-21 8:39 ` Mike Rapoport
2020-04-21 8:39 ` Mike Rapoport
2020-04-12 19:48 ` [PATCH 03/21] mm: remove CONFIG_HAVE_MEMBLOCK_NODE_MAP option Mike Rapoport
2020-04-21 4:23 ` Baoquan He
2020-04-21 9:09 ` Mike Rapoport
2020-04-21 9:09 ` Mike Rapoport
2020-04-21 9:45 ` Baoquan He
2020-04-12 19:48 ` [PATCH 04/21] mm: free_area_init: use maximal zone PFNs rather than zone sizes Mike Rapoport
2020-04-22 23:41 ` Baoquan He
2020-06-15 3:53 ` Greg Ungerer
2020-06-15 6:22 ` Mike Rapoport
2020-06-15 6:22 ` Mike Rapoport
2020-06-15 7:17 ` Greg Ungerer
2020-04-12 19:48 ` [PATCH 05/21] mm: use free_area_init() instead of free_area_init_nodes() Mike Rapoport
2020-04-23 0:02 ` Baoquan He
2020-04-12 19:48 ` [PATCH 06/21] alpha: simplify detection of memory zone boundaries Mike Rapoport
2020-04-12 19:48 ` [PATCH 07/21] arm: " Mike Rapoport
2020-04-12 19:48 ` [PATCH 08/21] arm64: simplify detection of memory zone boundaries for UMA configs Mike Rapoport
2020-04-12 19:48 ` [PATCH 09/21] csky: simplify detection of memory zone boundaries Mike Rapoport
2020-04-12 19:48 ` [PATCH 10/21] m68k: mm: " Mike Rapoport
2020-04-12 19:48 ` [PATCH 11/21] parisc: " Mike Rapoport
2020-04-12 19:48 ` [PATCH 12/21] sparc32: " Mike Rapoport
2020-04-12 19:48 ` [PATCH 13/21] unicore32: " Mike Rapoport
2020-04-12 19:48 ` [PATCH 14/21] xtensa: " Mike Rapoport
2020-04-12 19:48 ` [PATCH 15/21] mm: memmap_init: iterate over memblock regions rather that check each PFN Mike Rapoport
2020-04-20 14:26 ` Qian Cai
2020-04-24 7:22 ` David Hildenbrand
2020-04-25 16:49 ` Mike Rapoport
2020-04-25 16:49 ` Mike Rapoport
2020-04-12 19:48 ` [PATCH 16/21] mm: remove early_pfn_in_nid() and CONFIG_NODES_SPAN_OTHER_NODES Mike Rapoport
2020-04-23 1:13 ` Baoquan He
2020-04-23 5:50 ` Mike Rapoport
2020-04-23 5:50 ` Mike Rapoport
2020-05-18 21:38 ` Hoan Tran
2020-04-12 19:48 ` [PATCH 17/21] mm: free_area_init: allow defining max_zone_pfn in descending order Mike Rapoport
2020-04-23 2:53 ` Baoquan He
2020-04-23 2:57 ` Baoquan He
2020-04-23 5:55 ` Mike Rapoport
2020-04-23 5:55 ` Mike Rapoport
2020-04-24 0:33 ` Baoquan He
2020-04-12 19:48 ` [PATCH 18/21] mm: rename free_area_init_node() to free_area_init_memoryless_node() Mike Rapoport
2020-04-23 3:14 ` Baoquan He
2020-04-23 6:18 ` Mike Rapoport
2020-04-23 6:18 ` Mike Rapoport
2020-04-12 19:48 ` [PATCH 19/21] mm: clean up free_area_init_node() and its helpers Mike Rapoport
2020-04-12 19:48 ` [PATCH 20/21] mm: simplify find_min_pfn_with_active_regions() Mike Rapoport
2020-04-12 19:48 ` Mike Rapoport [this message]
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