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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [RFC PATCH v1 00/33] accurately calculate pages managed by buddy system
The original goal of this patchset is to fix the bug reported by https://bugzilla.kernel.org/show_bug.cgi?id=53501 Now it has also been expanded to reduce common code used by memory initializion. In total it has reduced about 550 lines of code. Patch 1: Extract common help functions from free_init_mem() and free_initrd_mem() on different architectures. Patch 2-27: Use help functions to simplify free_init_mem() and free_initrd_mem() on different architectures. This has reduced about 500 lines of code. Patch 28: Introduce common help function to free highmem pages when initializing memory subsystem. Patch 29-32: Adjust totalhigh_pages, totalram_pages and zone->managed_pages altogether when reserving/unreserving pages. Patch 33: Change /sys/.../node/nodex/meminfo to report available pages within the node as "MemTotal". We have only tested these patchset on x86 platforms, and have done basic compliation tests using cross-compilers from ftp.kernel.org. That means some code may not pass compilation on some architectures. So any help to test this patchset are welcomed! Jiang Liu (33): mm: introduce common help functions to deal with reserved/managed pages mm/alpha: use common help functions to free reserved pages mm/ARM: use common help functions to free reserved pages mm/avr32: use common help functions to free reserved pages mm/blackfin: use common help functions to free reserved pages mm/c6x: use common help functions to free reserved pages mm/cris: use common help functions to free reserved pages mm/FRV: use common help functions to free reserved pages mm/h8300: use common help functions to free reserved pages mm/IA64: use common help functions to free reserved pages mm/m32r: use common help functions to free reserved pages mm/m68k: use common help functions to free reserved pages mm/microblaze: use common help functions to free reserved pages mm/MIPS: use common help functions to free reserved pages mm/mn10300: use common help functions to free reserved pages mm/openrisc: use common help functions to free reserved pages mm/parisc: use common help functions to free reserved pages mm/ppc: use common help functions to free reserved pages mm/s390: use common help functions to free reserved pages mm/score: use common help functions to free reserved pages mm/SH: use common help functions to free reserved pages mm/SPARC: use common help functions to free reserved pages mm/um: use common help functions to free reserved pages mm/unicore32: use common help functions to free reserved pages mm/x86: use common help functions to free reserved pages mm/xtensa: use common help functions to free reserved pages mm,kexec: use common help functions to free reserved pages mm: introduce free_highmem_page() helper to free highmem pages inti buddy system mm: accurately calculate zone->managed_pages for highmem zones mm: use a dedicated lock to protect totalram_pages and zone->managed_pages mm: avoid using __free_pages_bootmem() at runtime mm: correctly update zone->mamaged_pages mm: report available pages as "MemTotal" for each NUMA node arch/alpha/kernel/sys_nautilus.c | 5 +- arch/alpha/mm/init.c | 24 ++------- arch/alpha/mm/numa.c | 3 +- arch/arm/mm/init.c | 46 ++++++----------- arch/arm64/mm/init.c | 26 +--------- arch/avr32/mm/init.c | 24 +-------- arch/blackfin/mm/init.c | 20 +------- arch/c6x/mm/init.c | 30 +---------- arch/cris/mm/init.c | 16 +----- arch/frv/mm/init.c | 32 ++---------- arch/h8300/mm/init.c | 28 +---------- arch/ia64/mm/init.c | 23 ++------- arch/m32r/mm/init.c | 26 ++-------- arch/m68k/mm/init.c | 24 +-------- arch/microblaze/include/asm/setup.h | 1 - arch/microblaze/mm/init.c | 33 ++---------- arch/mips/mm/init.c | 36 ++++---------- arch/mips/sgi-ip27/ip27-memory.c | 4 +- arch/mn10300/mm/init.c | 23 +-------- arch/openrisc/mm/init.c | 27 ++-------- arch/parisc/mm/init.c | 24 ++------- arch/powerpc/kernel/crash_dump.c | 5 +- arch/powerpc/kernel/fadump.c | 5 +- arch/powerpc/kernel/kvm.c | 7 +-- arch/powerpc/mm/mem.c | 34 ++----------- arch/powerpc/platforms/512x/mpc512x_shared.c | 5 +- arch/s390/mm/init.c | 35 +++---------- arch/score/mm/init.c | 33 ++---------- arch/sh/mm/init.c | 26 ++-------- arch/sparc/kernel/leon_smp.c | 15 ++---- arch/sparc/mm/init_32.c | 50 +++---------------- arch/sparc/mm/init_64.c | 25 ++-------- arch/tile/mm/init.c | 4 +- arch/um/kernel/mem.c | 25 ++-------- arch/unicore32/mm/init.c | 26 +--------- arch/x86/mm/init.c | 5 +- arch/x86/mm/init_32.c | 10 +--- arch/x86/mm/init_64.c | 18 +------ arch/xtensa/mm/init.c | 21 ++------ drivers/virtio/virtio_balloon.c | 8 +-- drivers/xen/balloon.c | 19 ++----- include/linux/mm.h | 36 ++++++++++++++ include/linux/mmzone.h | 14 ++++-- kernel/kexec.c | 8 +-- mm/bootmem.c | 16 ++---- mm/hugetlb.c | 2 +- mm/memory_hotplug.c | 31 ++---------- mm/nobootmem.c | 14 ++---- mm/page_alloc.c | 69 ++++++++++++++++++++++---- 49 files changed, 248 insertions(+), 793 deletions(-) -- 1.7.9.5 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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