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Will Deacon 5d3a551c28 mm: hugetlb: add arch hook for clearing page flags before entering pool ... The core page allocator ensures that page flags are zeroed when freeing pages via free_pages_check. A number of architectures (ARM, PPC, MIPS) rely on this property to treat new pages as dirty with respect to the data cache and perform the appropriate flushing before mapping the pages into userspace. This can lead to cache synchronisation problems when using hugepages, since the allocator keeps its own pool of pages above the usual page allocator and does not reset the page flags when freeing a page into the pool. This patch adds a new architecture hook, arch_clear_hugepage_flags, so that architectures which rely on the page flags being in a particular state for fresh allocations can adjust the flags accordingly when a page is freed into the pool. Signed-off-by: Will Deacon <will.deacon@arm.com> Cc: Michal Hocko <mhocko@suse.cz> Reviewed-by: Michal Hocko <mhocko@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		12 years ago
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asm	mm: hugetlb: add arch hook for clearing page flags before entering pool	12 years ago
cpu-common/cpu	sh: Kill off unused cpu/cacheflush.h.	16 years ago
cpu-sh2/cpu	sh: Tidy up some of the cpu legacy dma header mess.	13 years ago
cpu-sh2a/cpu	sh: sh7269: Fix LCD pinmux	13 years ago
cpu-sh3/cpu	sh: Tidy up some of the cpu legacy dma header mess.	13 years ago
cpu-sh4/cpu	sh: modify the sh_dmae_slave_config for RSPI in setup-sh7757	13 years ago
cpu-sh4a/cpu	sh: dma: More legacy cpu dma chainsawing.	13 years ago
cpu-sh5/cpu	sh: Tidy up some of the cpu legacy dma header mess.	13 years ago
mach-common/mach	sh: legacy PCI evt2irq migration.	13 years ago
mach-dreamcast/mach	sh: Kill off MAX_DMA_ADDRESS leftovers.	13 years ago
mach-ecovec24/mach	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	13 years ago
mach-kfr2r09/mach	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	13 years ago
mach-landisk/mach	sh: landisk evt2irq migration.	13 years ago
mach-migor/mach	fbdev: sh_mobile_lcdc: Remove board configuration board_data field	13 years ago
mach-sdk7786/mach	sh: mach-sdk7786: Handle baseboard NMI source selection.	14 years ago
mach-se/mach	Merge branch 'sh/dynamic-irq-cleanup' into sh-latest	13 years ago
mach-sh03/mach	…
mach-x3proto/mach	sh: mach-x3proto: Support for baseboard GPIOs.	15 years ago
uapi/asm	UAPI: (Scripted) Set up UAPI Kbuild files	13 years ago