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    Subject[PATCH 1/7] mm/slob: remove CONFIG_SLOB
    Date
    Remove SLOB from Kconfig and Makefile. Everything under #ifdef
    CONFIG_SLOB, and mm/slob.c is now dead code.

    Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
    ---
    init/Kconfig | 2 +-
    kernel/configs/tiny.config | 1 -
    mm/Kconfig | 22 ----------------------
    mm/Makefile | 1 -
    4 files changed, 1 insertion(+), 25 deletions(-)

    diff --git a/init/Kconfig b/init/Kconfig
    index 1fb5f313d18f..72ac3f66bc27 100644
    --- a/init/Kconfig
    +++ b/init/Kconfig
    @@ -973,7 +973,7 @@ config MEMCG

    config MEMCG_KMEM
    bool
    - depends on MEMCG && !SLOB
    + depends on MEMCG
    default y

    config BLK_CGROUP
    diff --git a/kernel/configs/tiny.config b/kernel/configs/tiny.config
    index c2f9c912df1c..144b2bd86b14 100644
    --- a/kernel/configs/tiny.config
    +++ b/kernel/configs/tiny.config
    @@ -7,6 +7,5 @@ CONFIG_KERNEL_XZ=y
    # CONFIG_KERNEL_LZO is not set
    # CONFIG_KERNEL_LZ4 is not set
    # CONFIG_SLAB is not set
    -# CONFIG_SLOB_DEPRECATED is not set
    CONFIG_SLUB=y
    CONFIG_SLUB_TINY=y
    diff --git a/mm/Kconfig b/mm/Kconfig
    index 4751031f3f05..669399ab693c 100644
    --- a/mm/Kconfig
    +++ b/mm/Kconfig
    @@ -238,30 +238,8 @@ config SLUB
    and has enhanced diagnostics. SLUB is the default choice for
    a slab allocator.

    -config SLOB_DEPRECATED
    - depends on EXPERT
    - bool "SLOB (Simple Allocator - DEPRECATED)"
    - depends on !PREEMPT_RT
    - help
    - Deprecated and scheduled for removal in a few cycles. SLUB
    - recommended as replacement. CONFIG_SLUB_TINY can be considered
    - on systems with 16MB or less RAM.
    -
    - If you need SLOB to stay, please contact linux-mm@kvack.org and
    - people listed in the SLAB ALLOCATOR section of MAINTAINERS file,
    - with your use case.
    -
    - SLOB replaces the stock allocator with a drastically simpler
    - allocator. SLOB is generally more space efficient but
    - does not perform as well on large systems.
    -
    endchoice

    -config SLOB
    - bool
    - default y
    - depends on SLOB_DEPRECATED
    -
    config SLUB_TINY
    bool "Configure SLUB for minimal memory footprint"
    depends on SLUB && EXPERT
    diff --git a/mm/Makefile b/mm/Makefile
    index 8e105e5b3e29..2d9c1e7f6085 100644
    --- a/mm/Makefile
    +++ b/mm/Makefile
    @@ -81,7 +81,6 @@ obj-$(CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP) += hugetlb_vmemmap.o
    obj-$(CONFIG_NUMA) += mempolicy.o
    obj-$(CONFIG_SPARSEMEM) += sparse.o
    obj-$(CONFIG_SPARSEMEM_VMEMMAP) += sparse-vmemmap.o
    -obj-$(CONFIG_SLOB) += slob.o
    obj-$(CONFIG_MMU_NOTIFIER) += mmu_notifier.o
    obj-$(CONFIG_KSM) += ksm.o
    obj-$(CONFIG_PAGE_POISONING) += page_poison.o
    --
    2.39.2
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