lkml.org 
[lkml]   [2023]   [Aug]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v4 05/48] kvm: mmu: dynamically allocate the x86-mmu shrinker
    Date
    Use new APIs to dynamically allocate the x86-mmu shrinker.

    Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
    Reviewed-by: Muchun Song <songmuchun@bytedance.com>
    ---
    arch/x86/kvm/mmu/mmu.c | 18 ++++++++++--------
    1 file changed, 10 insertions(+), 8 deletions(-)

    diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
    index 9e4cd8b4a202..0386d5ec97b0 100644
    --- a/arch/x86/kvm/mmu/mmu.c
    +++ b/arch/x86/kvm/mmu/mmu.c
    @@ -6804,11 +6804,7 @@ static unsigned long mmu_shrink_count(struct shrinker *shrink,
    return percpu_counter_read_positive(&kvm_total_used_mmu_pages);
    }

    -static struct shrinker mmu_shrinker = {
    - .count_objects = mmu_shrink_count,
    - .scan_objects = mmu_shrink_scan,
    - .seeks = DEFAULT_SEEKS * 10,
    -};
    +static struct shrinker *mmu_shrinker;

    static void mmu_destroy_caches(void)
    {
    @@ -6941,10 +6937,16 @@ int kvm_mmu_vendor_module_init(void)
    if (percpu_counter_init(&kvm_total_used_mmu_pages, 0, GFP_KERNEL))
    goto out;

    - ret = register_shrinker(&mmu_shrinker, "x86-mmu");
    - if (ret)
    + mmu_shrinker = shrinker_alloc(0, "x86-mmu");
    + if (!mmu_shrinker)
    goto out_shrinker;

    + mmu_shrinker->count_objects = mmu_shrink_count;
    + mmu_shrinker->scan_objects = mmu_shrink_scan;
    + mmu_shrinker->seeks = DEFAULT_SEEKS * 10;
    +
    + shrinker_register(mmu_shrinker);
    +
    return 0;

    out_shrinker:
    @@ -6966,7 +6968,7 @@ void kvm_mmu_vendor_module_exit(void)
    {
    mmu_destroy_caches();
    percpu_counter_destroy(&kvm_total_used_mmu_pages);
    - unregister_shrinker(&mmu_shrinker);
    + shrinker_free(mmu_shrinker);
    }

    /*
    --
    2.30.2
    \
     
     \ /
      Last update: 2023-08-07 13:12    [W:4.156 / U:0.036 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site