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Re: [Qemu-devel] [PATCH 11/13] 9p: darwin: Mark mknod as unsupported

From: Keno Fischer
Subject: Re: [Qemu-devel] [PATCH 11/13] 9p: darwin: Mark mknod as unsupported
Date: Thu, 31 May 2018 18:56:23 -0400

>> My concern was that allowing this would cause unexpected
>> behavior, since the device numbers will differ between OS X
>> and Linux. Though maybe this isn't the place to worry about
>> that.
> The numbers may differ indeed but we don't really care since the
> server never opens device files. This is just a directory entry.

Ok, let me try to implement it. However, I don't think it is possible
to implement mknodat (or at least I can't think of how) on Darwin
directly. I could use regular mknod, but presumably, this is used
to avoid a race condition between creating the device and setting
the permissions. Can you think of a good way to resolve that?

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