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x86/Kconfig: Make SPARSEMEM default for 32-bit x86 

Sparsemem has been a default memory model for x86-64 for over a decade,
since:

  b263295dbf ("x86: 64-bit, make sparsemem vmemmap the only memory model").

Make it the default for 32-bit NUMA systems (if there any left) as well.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mm@kvack.org
Link: http://lkml.kernel.org/r/1556112252-9339-2-git-send-email-rppt@linux.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Mike Rapoport 2019-04-24 16:24:11 +03:00 committed by Ingo Molnar
parent 392bef7096
commit 6ad57f7f2c
1 changed files with 1 additions and 6 deletions
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7
arch/x86/Kconfig
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@ -1609,10 +1609,6 @@ config ARCH_DISCONTIGMEM_ENABLE
def_bool y
depends on NUMA && X86_32
config ARCH_DISCONTIGMEM_DEFAULT
def_bool y
depends on NUMA && X86_32
config ARCH_SPARSEMEM_ENABLE
def_bool y
depends on X86_64 || NUMA || X86_32 || X86_32_NON_STANDARD
@ -1620,8 +1616,7 @@ config ARCH_SPARSEMEM_ENABLE
select SPARSEMEM_VMEMMAP_ENABLE if X86_64
config ARCH_SPARSEMEM_DEFAULT
def_bool y
depends on X86_64
def_bool X86_64 || (NUMA && X86_32)
config ARCH_SELECT_MEMORY_MODEL
def_bool y