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    SubjectRe: [PATCH v5] x86/sgx: Free backing memory after faulting the enclave page
    On Tue, Mar 01, 2022 at 09:54:14AM -0800, Dave Hansen wrote:
    > On 3/1/22 04:58, Jarkko Sakkinen wrote:
    > > @@ -32,14 +58,16 @@ static int __sgx_encl_eldu(struct sgx_encl_page *encl_page,
    > > else
    > > page_index = PFN_DOWN(encl->size);
    > >
    > > + page_pcmd_off = sgx_encl_get_backing_page_pcmd_offset(encl, page_index);
    > > +
    > > ret = sgx_encl_lookup_backing(encl, page_index, &b);
    > > if (ret)
    > > return ret;
    >
    > What tree is this against? It looks like it might be on top of
    > Kristen's overcommit series.
    >
    > It would be best if you could test this on top of tip/sgx. Kristen
    > changed code in this area as well.

    I rebased this against latest stuff and now I did a sanity check:

    $ git fetch tip
    remote: Enumerating objects: 75, done.
    remote: Counting objects: 100% (75/75), done.
    remote: Compressing objects: 100% (12/12), done.
    remote: Total 77 (delta 65), reused 65 (delta 63), pack-reused 2
    Unpacking objects: 100% (77/77), 34.07 KiB | 157.00 KiB/s, done.
    From git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
    161a9a33702a..cedd3614e5d9 perf/core -> tip/perf/core
    6255b48aebfd..25795ef6299f sched/core -> tip/sched/core

    $ git rebase tip/x86/sgx
    Current branch master is up to date.

    BR, Jarkko

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