On Wed, Apr 15, 2020 at 10:31:21PM -0400, Sasha Levin wrote: > On Wed, Apr 15, 2020 at 01:32:50PM +0200, gregkh@xxxxxxxxxxxxxxxxxxx wrote: > > > > The patch below does not apply to the 4.19-stable tree. > > If someone wants it applied there, or to any other stable or longterm > > tree, then please email the backport, including the original git commit > > id to <stable@xxxxxxxxxxxxxxx>. > > > > thanks, > > > > greg k-h > > > > ------------------ original commit in Linus's tree ------------------ > > > > > From ea36ec8623f56791c6ff6738d0509b7920f85220 Mon Sep 17 00:00:00 2001 > > From: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > > Date: Sun, 2 Feb 2020 17:16:31 +0000 > > Subject: [PATCH] drm: Remove PageReserved manipulation from drm_pci_alloc > > > > drm_pci_alloc/drm_pci_free are very thin wrappers around the core dma > > facilities, and we have no special reason within the drm layer to behave > > differently. In particular, since > > > > commit de09d31dd38a50fdce106c15abd68432eebbd014 > > Author: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> > > Date: Fri Jan 15 16:51:42 2016 -0800 > > > > page-flags: define PG_reserved behavior on compound pages > > > > As far as I can see there's no users of PG_reserved on compound pages. > > Let's use PF_NO_COMPOUND here. > > > > it has been illegal to combine GFP_COMP with SetPageReserved, so lets > > stop doing both and leave the dma layer to its own devices. > > > > Reported-by: Taketo Kabe > > Bug: https://gitlab.freedesktop.org/drm/intel/issues/1027 > > Fixes: de09d31dd38a ("page-flags: define PG_reserved behavior on compound pages") > > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > > Cc: <stable@xxxxxxxxxxxxxxx> # v4.5+ > > Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx> > > Link: https://patchwork.freedesktop.org/patch/msgid/20200202171635.4039044-1-chris@xxxxxxxxxxxxxxxxxx > > We didn't have 750afb08ca71 ("cross-tree: phase out > dma_zalloc_coherent()") on older kernels. Fixed and queued up. Thanks for this, and all the other FAILED: fixes as well. greg k-h
