tree 8e3a313983e66ac7bc8ff5bab6924a740f8af8ac
parent 5fba13b5cf5856e725de35665c37b647323d3b9a
author Michal Hocko <mhocko@suse.com> 1448980369 +0100
committer Michael S. Tsirkin <mst@redhat.com> 1449502091 +0200

virtio: Do not drop __GFP_HIGH in alloc_indirect

b92b1b89a33c ("virtio: force vring descriptors to be allocated from
lowmem") tried to exclude highmem pages for descriptors so it cleared
__GFP_HIGHMEM from a given gfp mask. The patch also cleared __GFP_HIGH
which doesn't make much sense for this fix because __GFP_HIGH only
controls access to memory reserves and it doesn't have any influence
on the zone selection. Some of the call paths use GFP_ATOMIC and
dropping __GFP_HIGH will reduce their changes for success because the
lack of access to memory reserves.

Signed-off-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Mel Gorman <mgorman@techsingularity.net>