tree dcec0a4d27a8ed2703f41bb0e9fbfac054b50a4e
parent 6a1c2e8f22cf972cddbce5b9f7bf57e826c970bf
author Shailend Chand <shailend@google.com> 1663027741 -0700
committer COS Cherry Picker <cloud-image-release@prod.google.com> 1698515033 -0700

gve: Fix GFP flags when allocing pages

Use GFP_ATOMIC when allocating pages out of the hotpath,
continue to use GFP_KERNEL when allocating pages during setup.

GFP_KERNEL will allow blocking which allows it to succeed
more often in a low memory enviornment but in the hotpath we do
not want to allow the allocation to block.

BUG=b/308158847
TEST=None
RELEASE_NOTE=Fix Node restart due to kernel panic is C3D machines.

cos-patch: bug
Fixes: 9b8dd5e5ea48b ("gve: DQO: Add RX path")
Signed-off-by: Shailend Chand <shailend@google.com>
Signed-off-by: Jeroen de Borst <jeroendb@google.com>
Link: https://lore.kernel.org/r/20220913000901.959546-1-jeroendb@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Change-Id: I6394351784a0114f51791a3c446c5389c471e5c8
Reviewed-on: https://cos-review.googlesource.com/c/third_party/kernel/+/60300
Reviewed-by: Oleksandr Tymoshenko <ovt@google.com>
Main-Branch-Verified: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>