[PATCH] Add mmap

[Christian Mauderer]

On 16/07/2019 22:44, Chris Johns wrote:
> On 17/7/19 12:29 am, Vijay Kumar Banerjee wrote:
>> ---
>>  freebsd/sys/kern/kern_conf.c       |  8 ++++----
>>  freebsd/sys/sys/conf.h             |  2 +-
>>  rtemsbsd/include/machine/vm.h      |  2 ++
>>  rtemsbsd/sys/fs/devfs/devfs_devs.c | 10 ++++++++++
>>  4 files changed, 17 insertions(+), 5 deletions(-)
> 
> Should there be a test added for this interface? I am not sure what sort of test
> should be added.
> 
> Chris

Hello Chris,

like Vijay said in his introduction mail: I asked him to send a preview
of the patch so that Nils can start working with it. Vijay already sent
a second version with a test. Basically it's the same structure like for
the other calls: A test whether the devfs layer routes the call through
to the driver.

The mmap can only work for some drivers. Basically every driver that
returns a pointer to some existing memory location. So with this patch
we have to take a better look at mmap implementation of drivers in the
future.

Best regards

Christian
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