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From: Gustavo Padovan <gustavo@padovan.org>
To: Chris Wilson <chris@chris-wilson.co.uk>
Cc: John Einar Reitan <john.reitan@arm.com>, dri-devel@lists.freedesktop.org
Subject: Re: [PATCH v2] sync_file: Return consistent status in SYNC_IOC_FILE_INFO
Date: Mon, 9 Oct 2017 14:28:02 -0300	[thread overview]
Message-ID: <20171009172802.GA26962@jade> (raw)
In-Reply-To: <150755721510.26467.14976900836114227400@mail.alporthouse.com>

2017-10-09 Chris Wilson <chris@chris-wilson.co.uk>:

> Quoting John Einar Reitan (2017-10-09 14:49:36)
> > sync_file_ioctl_fence_info has a race between filling the status
> > of the underlying fences and the overall status of the sync_file.
> > If fence transitions in the time frame between its sync_fill_fence_info
> > and the later dma_fence_is_signaled for the sync_file, the returned
> > information is inconsistent showing non-signaled underlying fences but
> > an overall signaled state.
> > 
> > This patch changes sync_file_ioctl_fence_info to track what has been
> > encoded and using that as the overall sync_file status.
> > 
> > Tested-by: Vamsidhar Reddy Gaddam <vamsidhar.gaddam@arm.com>
> > Signed-off-by: John Einar Reitan <john.reitan@arm.com>
> > Cc: Sumit Semwal <sumit.semwal@linaro.org>
> > Cc: Gustavo Padovan <gustavo@padovan.org>
> > Cc: dri-devel@lists.freedesktop.org
> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

Pushed to drm-misc-fixes.

Gustavo
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  reply	other threads:[~2017-10-09 17:28 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-03 13:51 [PATCH] sync_file: Return consistent status in SYNC_IOC_FILE_INFO John Einar Reitan
2017-10-04 10:43 ` Chris Wilson
2017-10-04 12:15   ` John Einar Reitan
2017-10-09 13:49 ` [PATCH v2] " John Einar Reitan
2017-10-09 13:53   ` Chris Wilson
2017-10-09 17:28     ` Gustavo Padovan [this message]
2017-10-10  6:09   ` Chunming Zhou

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