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From: Bijan Tabatabai <bijan311@gmail.com>
To: kernelnewbies@kernelnewbies.org
Subject: How and where are a processes's PTEs set when mmaping a file in a tmpfs?
Date: Tue, 1 Sep 2020 14:33:55 -0500	[thread overview]
Message-ID: <CAMvvPS50MU-t1_mkaqE0ten0VeAVa2QK7Yi=XeJfcv-Tz81=jQ@mail.gmail.com> (raw)

Hello,

I am looking into what happens under the hood when a file on a tmpfs
partition gets mmap'd. I am particularly interested in seeing how the
PTEs for the new memory region are populated, but I can't seem to find
exactly where that happens. I tried looking through the shmem_mmap and
shmem_fault functions as well as other places in mm/shmem.c without
much luck, though it is possible I just missed it.

Can someone point me in the right direction?

Thanks,
Bijan

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                 reply	other threads:[~2020-09-05  2:36 UTC|newest]

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