mirror of https://github.com/torvalds/linux.git
c177c81e09
Currently hugepage migration is available for all archs which support pmd-level hugepage, but testing is done only for x86_64 and there're bugs for other archs. So to avoid breaking such archs, this patch limits the availability strictly to x86_64 until developers of other archs get interested in enabling this feature. Simply disabling hugepage migration on non-x86_64 archs is not enough to fix the reported problem where sys_move_pages() hits the BUG_ON() in follow_page(FOLL_GET), so let's fix this by checking if hugepage migration is supported in vma_migratable(). Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Reported-by: Michael Ellerman <mpe@ellerman.id.au> Tested-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Hugh Dickins <hughd@google.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: James Hogan <james.hogan@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: David Miller <davem@davemloft.net> Cc: <stable@vger.kernel.org> [3.12+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| abort-ev4.S | ||
| abort-ev4t.S | ||
| abort-ev5t.S | ||
| abort-ev5tj.S | ||
| abort-ev6.S | ||
| abort-ev7.S | ||
| abort-lv4t.S | ||
| abort-macro.S | ||
| abort-nommu.S | ||
| alignment.c | ||
| cache-aurora-l2.h | ||
| cache-fa.S | ||
| cache-feroceon-l2.c | ||
| cache-l2x0.c | ||
| cache-nop.S | ||
| cache-tauros2.c | ||
| cache-tauros3.h | ||
| cache-v4.S | ||
| cache-v4wb.S | ||
| cache-v4wt.S | ||
| cache-v6.S | ||
| cache-v7.S | ||
| cache-xsc3l2.c | ||
| context.c | ||
| copypage-fa.c | ||
| copypage-feroceon.c | ||
| copypage-v4mc.c | ||
| copypage-v4wb.c | ||
| copypage-v4wt.c | ||
| copypage-v6.c | ||
| copypage-xsc3.c | ||
| copypage-xscale.c | ||
| dma-mapping.c | ||
| dump.c | ||
| extable.c | ||
| fault-armv.c | ||
| fault.c | ||
| fault.h | ||
| flush.c | ||
| fsr-2level.c | ||
| fsr-3level.c | ||
| highmem.c | ||
| hugetlbpage.c | ||
| idmap.c | ||
| init.c | ||
| iomap.c | ||
| ioremap.c | ||
| mm.h | ||
| mmap.c | ||
| mmu.c | ||
| nommu.c | ||
| pabort-legacy.S | ||
| pabort-v6.S | ||
| pabort-v7.S | ||
| pgd.c | ||
| proc-arm7tdmi.S | ||
| proc-arm9tdmi.S | ||
| proc-arm720.S | ||
| proc-arm740.S | ||
| proc-arm920.S | ||
| proc-arm922.S | ||
| proc-arm925.S | ||
| proc-arm926.S | ||
| proc-arm940.S | ||
| proc-arm946.S | ||
| proc-arm1020.S | ||
| proc-arm1020e.S | ||
| proc-arm1022.S | ||
| proc-arm1026.S | ||
| proc-fa526.S | ||
| proc-feroceon.S | ||
| proc-macros.S | ||
| proc-mohawk.S | ||
| proc-sa110.S | ||
| proc-sa1100.S | ||
| proc-syms.c | ||
| proc-v6.S | ||
| proc-v7-2level.S | ||
| proc-v7-3level.S | ||
| proc-v7.S | ||
| proc-v7m.S | ||
| proc-xsc3.S | ||
| proc-xscale.S | ||
| tcm.h | ||
| tlb-fa.S | ||
| tlb-v4.S | ||
| tlb-v4wb.S | ||
| tlb-v4wbi.S | ||
| tlb-v6.S | ||
| tlb-v7.S | ||