summaryrefslogtreecommitdiffstats
path: root/Documentation/vm
diff options
context:
space:
mode:
authorMike Rapoport <rppt@linux.ibm.com>2020-06-03 15:58:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-03 20:09:44 -0700
commit237e506cd5af254fbc3be560d57c29163133aaf6 (patch)
tree86a36cd83f523a4177f413269cbd755de4f6fdeb /Documentation/vm
parent8a1b25fe3ce49f7c0ad562fa294ac7f93731bd3a (diff)
downloadlinux-237e506cd5af254fbc3be560d57c29163133aaf6.tar.gz
linux-237e506cd5af254fbc3be560d57c29163133aaf6.tar.bz2
linux-237e506cd5af254fbc3be560d57c29163133aaf6.zip
docs/vm: update memory-models documentation
To reflect the updates to free_area_init() family of functions. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Hoan Tran <hoan@os.amperecomputing.com> [arm64] Cc: Baoquan He <bhe@redhat.com> Cc: Brian Cain <bcain@codeaurora.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Guo Ren <guoren@kernel.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Ley Foon Tan <ley.foon.tan@intel.com> Cc: Mark Salter <msalter@redhat.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Nick Hu <nickhu@andestech.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/20200412194859.12663-22-rppt@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/vm')
-rw-r--r--Documentation/vm/memory-model.rst9
1 files 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