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authorPavel Tatashin <[email protected]>2018-01-31 16:16:02 -0800
committerLinus Torvalds <[email protected]>2018-01-31 17:18:36 -0800
commit2e3ca40f03bb13709df40eff2f7fc157803fa5a3 (patch)
treefb12c4706d0a134c16f39fe669ce2309b4179328 /kernel/locking/rtmutex-debug.c
parenta85f878b443f8d2b91ba76f09da21ac0af22e07f (diff)
mm: relax deferred struct page requirements
There is no need to have ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT, as all the page initialization code is in common code. Also, there is no need to depend on MEMORY_HOTPLUG, as initialization code does not really use hotplug memory functionality. So, we can remove this requirement as well. This patch allows to use deferred struct page initialization on all platforms with memblock allocator. Tested on x86, arm64, and sparc. Also, verified that code compiles on PPC with CONFIG_MEMORY_HOTPLUG disabled. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Pavel Tatashin <[email protected]> Acked-by: Heiko Carstens <[email protected]> [s390] Reviewed-by: Khalid Aziz <[email protected]> Acked-by: Michael Ellerman <[email protected]> Acked-by: Michal Hocko <[email protected]> Cc: Steven Sistare <[email protected]> Cc: Daniel Jordan <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Kirill A. Shutemov <[email protected]> Cc: Reza Arbab <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Mel Gorman <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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