MYN - 2017/07/16 23:56 / Linux 4.12.0 -> 4.13-rc1

2017/07/16 23:56 / Linux 4.12.0 -> 4.13-rc1

4.13-rc1が出ているので .config がどう変更されるのか見てみた．ターゲットは VMware on Windows 上の Guest で CPU は i7-3687U．以下 - は削除されたもの，+ は追加されたもの m->n 等は値の変化を示す．

+CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
Selected by: X86 [=y] && SMP [=y].
See genirq: Introduce effective affinity mask and x86/apic: Implement effective irq mask update.
+CONFIG_GENERIC_IRQ_MIGRATION=y
Selected by: X86 [=y] && SMP [=y].
See genirq: Introduce generic irq migration for cpu hotunplug and x86/irq: Use irq_migrate_all_off_this_cpu().
+CONFIG_SLAB_MERGE_DEFAULT=y
Introduced by mm: allow slab_nomerge to be set at build time.
y にしておく．
あと，Debian GNU/Linux の kernel-image にならって SLAB allocator として CONFIG_SLAB を選んでいたが，CONFIG_SLUB が kernel の default のようなのでCONFIG_SLUB=yにすることにした．
+CONFIG_THIN_ARCHIVES=y
def_bool y.
See kbuild: allow architectures to use thin archives instead of ld -r and kbuild: thin archives make default for all archs.
+CONFIG_HAVE_GENERIC_GUP=y
arch/x86/Kconfig def_bool y.
See x86/mm/gup: Switch GUP to the generic get_user_page_fast() implementation.
+CONFIG_ARCH_WANTS_THP_SWAP=y
Selected by: X86 [=y] && X86_64 [=y].
+CONFIG_THP_SWAP=y
def_bool y,
Depends on: TRANSPARENT_HUGEPAGE [=y] && ARCH_WANTS_THP_SWAP [=y].
See mm, THP, swap: delay splitting THP during swap out.
+CONFIG_ARCH_HAS_ZONE_DEVICE=y
Selected by: X86 [=y] && X86_64 [=y].
See mm, x86: Add ARCH_HAS_ZONE_DEVICE to Kconfig
+CONFIG_PCI_LOCKLESS_CONFIG=y
Selected by: X86 [=y].
See x86/PCI: Select CONFIG_PCI_LOCKLESS_CONFIG.
+CONFIG_DRM_PANEL_BRIDGE=y
def_bool y,
Selects: DRM_PANEL [=y].
See drm/bridge: Refactor out the panel wrapper from the lvds-encoder bridge..
不要な気もするが依存関係で y になる．
+CONFIG_DRM_PANEL=y
上で Select される．
+CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE=y
Selected by: X86 [=y] && X86_64 [=y].
See x86, uaccess: introduce copy_from_iter_flushcache for pmem / cache-bypass operations.
-CONFIG_ARCH_HAS_GIGANTIC_PAGE=y
Selected by: X86_64 [=y] && 64BIT [=y] && (MEMORY_ISOLATION [=n] && COMPACTION [=y] || CMA [=n]).
See mm/hugetlb: clean up ARCH_HAS_GIGANTIC_PAGE.
Memory の hotplug 等を disable していて，CMA (Contiguous Memory Allocator) も n なので，選択されなくなった．
+CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
Selected by: X86.
See include/linux/string.h: add the option of fortified string.h functions
+CONFIG_HAVE_HARDLOCKUP_DETECTOR_PERF=y
Selected by: X86 [=y] && HAVE_PERF_EVENTS_NMI [=y].
See kernel/watchdog: split up config options.
+CONFIG_RTC_NVMEM=y
Selects: NVMEM [=y] and default RTC_CLASS).
See rtc: add generic nvmem support.
+CONFIG_NVMEM=y
上で Select される．

やるきなし

2017/07/16 23:56 / Linux 4.12.0 -> 4.13-rc1

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