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author | Mike Rapoport <rppt@linux.ibm.com> | 2020-06-04 01:57:06 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-04 06:09:43 +0300 |
commit | fa3354e4ea39e97af906c05551a36396541d70b4 (patch) | |
tree | ad86764d19b4524fee6cd892ee4c7c5ed1bb76b9 /arch/nds32/mm/init.c | |
parent | 3f08a302f533f74ad2e909e7a61274aa7eebc0ab (diff) | |
download | linux-fa3354e4ea39e97af906c05551a36396541d70b4.tar.xz |
mm: free_area_init: use maximal zone PFNs rather than zone sizes
Currently, architectures that use free_area_init() to initialize memory
map and node and zone structures need to calculate zone and hole sizes.
We can use free_area_init_nodes() instead and let it detect the zone
boundaries while the architectures will only have to supply the possible
limits for the zones.
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]
Reviewed-by: 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/20200412194859.12663-5-rppt@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/nds32/mm/init.c')
-rw-r--r-- | arch/nds32/mm/init.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/arch/nds32/mm/init.c b/arch/nds32/mm/init.c index 0be3833f6814..91147cca4b64 100644 --- a/arch/nds32/mm/init.c +++ b/arch/nds32/mm/init.c @@ -31,16 +31,13 @@ EXPORT_SYMBOL(empty_zero_page); static void __init zone_sizes_init(void) { - unsigned long zones_size[MAX_NR_ZONES]; + unsigned long max_zone_pfn[MAX_NR_ZONES] = { 0 }; - /* Clear the zone sizes */ - memset(zones_size, 0, sizeof(zones_size)); - - zones_size[ZONE_NORMAL] = max_low_pfn; + max_zone_pfn[ZONE_NORMAL] = max_low_pfn; #ifdef CONFIG_HIGHMEM - zones_size[ZONE_HIGHMEM] = max_pfn; + max_zone_pfn[ZONE_HIGHMEM] = max_pfn; #endif - free_area_init(zones_size); + free_area_init(max_zone_pfn); } |