From: Gerd Hoffmann <kraxel@redhat.com>
To: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel <dri-devel@lists.freedesktop.org>,
Thomas Zimmermann <tzimmermann@suse.de>
Subject: Re: [PATCH v2] drm/gem: Fix mmap fake offset handling for drm_gem_object_funcs.mmap
Date: Thu, 21 Nov 2019 09:10:21 +0100 [thread overview]
Message-ID: <20191121081021.ehm27mlsst76wtmk@sirius.home.kraxel.org> (raw)
In-Reply-To: <CAKMK7uG5D9YeYgSx+H0v+g7uGt5bEnDyAij=mokQS8Qgez4Ukw@mail.gmail.com>
Hi,
> Aside: the amdgpu isn't great because it's racy, userspace could have
> guessed the fd and already started an mmap before we managed to update
> stuff.
Can't see that race. When I read the code correctly the fd is created
and installed (using dma_buf_fd) only after dmabuf setup is finished.
cheers,
Gerd
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next prev parent reply other threads:[~2019-11-21 8:10 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-24 19:18 [PATCH v2] drm/gem: Fix mmap fake offset handling for drm_gem_object_funcs.mmap Rob Herring
2019-10-25 5:34 ` Gerd Hoffmann
2019-10-25 7:30 ` Daniel Vetter
2019-11-08 16:27 ` Daniel Vetter
2019-11-08 16:55 ` Daniel Vetter
2019-11-12 8:52 ` Gerd Hoffmann
2019-11-12 9:35 ` Daniel Vetter
2019-11-12 15:37 ` Rob Herring
2019-11-12 19:06 ` Daniel Vetter
2019-11-12 21:31 ` Rob Herring
2019-11-12 22:14 ` Daniel Vetter
2019-11-13 7:53 ` Gerd Hoffmann
2019-11-12 9:26 ` Thomas Zimmermann
2019-11-12 9:32 ` Daniel Vetter
2019-11-12 9:49 ` Thomas Zimmermann
2019-11-12 10:38 ` Gerd Hoffmann
2019-11-12 14:44 ` Daniel Vetter
2019-11-13 7:39 ` Gerd Hoffmann
2019-11-13 8:17 ` Daniel Vetter
2019-11-13 13:51 ` Gerd Hoffmann
2019-11-13 16:27 ` Daniel Vetter
2019-11-15 9:37 ` Gerd Hoffmann
2019-11-15 10:18 ` Daniel Vetter
2019-11-15 10:56 ` Gerd Hoffmann
2019-11-15 15:31 ` Daniel Vetter
2019-11-18 10:40 ` Gerd Hoffmann
2019-11-18 16:49 ` Daniel Vetter
2019-11-20 8:05 ` Gerd Hoffmann
2019-11-20 10:39 ` Daniel Vetter
2019-11-20 11:40 ` Gerd Hoffmann
2019-11-20 12:04 ` Daniel Vetter
2019-11-20 12:18 ` Gerd Hoffmann
2019-11-20 12:34 ` Daniel Vetter
2019-11-20 13:08 ` Gerd Hoffmann
2019-11-20 13:40 ` Daniel Vetter
2019-11-21 8:10 ` Gerd Hoffmann [this message]
2019-11-21 8:47 ` Daniel Vetter
2019-11-21 8:02 ` Gerd Hoffmann
2019-11-21 8:49 ` Daniel Vetter
2019-11-21 10:18 ` Gerd Hoffmann
2019-11-21 10:36 ` Daniel Vetter
2019-11-13 13:53 ` Rob Herring
2019-11-13 16:28 ` Daniel Vetter
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