[PATCH v3] media: vb2: Allow reqbufs(0) with "in use" MMAP buffers

From: John Sheu Videobuf2 presently does not allow VIDIOC_REQBUFS to destroy outstanding buffers if the queue is of type V4L2_MEMORY_MMAP, and if the buffers are considered "in use". This is different behavior than for other memory types and prevents us from deallocating buffers in following two

Re: [PATCH v3] media: vb2: Allow reqbufs(0) with "in use" MMAP buffers

Hi Philipp, Thank you for the patch. On Wednesday, 14 November 2018 17:04:49 EET Philipp Zabel wrote: > From: John Sheu > > Videobuf2 presently does not allow VIDIOC_REQBUFS to destroy outstanding > buffers if the queue is of type V4L2_MEMORY_MMAP, and if the buffers are > considered "in use".

Re: [PATCH v3] media: vb2: Allow reqbufs(0) with "in use" MMAP buffers

On Thu, Nov 15, 2018 at 4:59 AM Laurent Pinchart wrote: > > Hi Philipp, > > Thank you for the patch. > > On Wednesday, 14 November 2018 17:04:49 EET Philipp Zabel wrote: > > From: John Sheu > > > > Videobuf2 presently does not allow VIDIOC_REQBUFS to destroy outstanding > > buffers if the queue i

Re: [PATCH v3] media: vb2: Allow reqbufs(0) with "in use" MMAP buffers

On 11/14/2018 08:59 PM, Laurent Pinchart wrote: > Hi Philipp, > > Thank you for the patch. > > On Wednesday, 14 November 2018 17:04:49 EET Philipp Zabel wrote: >> From: John Sheu >> >> Videobuf2 presently does not allow VIDIOC_REQBUFS to destroy outstanding >> buffers if the queue is of type V4L

Re: [PATCH v3] media: vb2: Allow reqbufs(0) with "in use" MMAP buffers

On 11/14/18 20:59, Laurent Pinchart wrote: > Hi Philipp, > > Thank you for the patch. > > On Wednesday, 14 November 2018 17:04:49 EET Philipp Zabel wrote: >> From: John Sheu >> >> Videobuf2 presently does not allow VIDIOC_REQBUFS to destroy outstanding >> buffers if the queue is of type V4L2_MEM

Re: [PATCH v3] media: vb2: Allow reqbufs(0) with "in use" MMAP buffers

On 11/14/18 16:04, Philipp Zabel wrote: > From: John Sheu > > Videobuf2 presently does not allow VIDIOC_REQBUFS to destroy outstanding > buffers if the queue is of type V4L2_MEMORY_MMAP, and if the buffers are > considered "in use". This is different behavior than for other memory > types and pr

Re: [PATCH v3] media: vb2: Allow reqbufs(0) with "in use" MMAP buffers

On Thu, Nov 15, 2018 at 11:29:35AM +0100, Hans Verkuil wrote: > On 11/14/18 20:59, Laurent Pinchart wrote: > > Hi Philipp, > > > > Thank you for the patch. > > > > On Wednesday, 14 November 2018 17:04:49 EET Philipp Zabel wrote: > >> From: John Sheu > >> > >> Videobuf2 presently does not allow V