header functions for osv + xen
header functions for osv + xen

Should come from OSv, we should fix this soon.

Signed-off-by: Glauber Costa <f8b79557d19b40666ebe336545a0b6178af65685@cloudius-systems.com>

linearregression/seastar,joerg84/seastar,chunshengster/seastar,guiquanz/scylla,aruanruan/scylla,gwicke/scylla,acbellini/seastar,hongliangzhao/seastar,acbellini/scylla,eklitzke/scylla,anzihenry/seastar,shyamalschandra/seastar,flashbuckets/seastar,stamhe/seastar,scylladb/scylla-seastar,bowlofstew/seastar,wildinto/seastar,justintung/scylla,rluta/scylla,koolhazz/seastar,linearregression/scylla,stamhe/seastar,raphaelsc/seastar,aruanruan/scylla,aruanruan/scylla,rluta/scylla,mixja/seastar,bowlofstew/seastar,cloudius-systems/seastar,guiquanz/scylla,ducthangho/imdb,leejir/seastar,slivne/seastar,wildinto/scylla,cloudius-systems/seastar,avikivity/seastar,koolhazz/seastar,stamhe/scylla,rluta/scylla,scylladb/scylla-seastar,raphaelsc/scylla,glommer/scylla,justintung/scylla,ducthangho/imdb,xtao/seastar,hongliangzhao/seastar,tempbottle/seastar,scylladb/seastar,sjperkins/seastar,kjniemi/scylla,gwicke/scylla,shaunstanislaus/scylla,joerg84/seastar,tempbottle/seastar,acbellini/seastar,glommer/scylla,linearregression/seastar,dwdm/seastar,joerg84/seastar,tempbottle/scylla,scylladb/scylla,cloudius-systems/seastar,jonathanleang/seastar,bowlofstew/scylla,koolhazz/seastar,jonathanleang/seastar,linearregression/scylla,printedheart/seastar,raphaelsc/seastar,phonkee/scylla,guiquanz/scylla,raphaelsc/scylla,stamhe/scylla,dreamsxin/seastar,kjniemi/scylla,raphaelsc/seastar,gwicke/scylla,scylladb/seastar,slivne/seastar,dwdm/seastar,capturePointer/scylla,raphaelsc/scylla,bzero/seastar,bzero/seastar,acbellini/scylla,kjniemi/seastar,respu/scylla,leejir/seastar,shyamalschandra/seastar,senseb/scylla,rentongzhang/scylla,asias/scylla,norcimo5/seastar,syuu1228/seastar,norcimo5/seastar,phonkee/scylla,kangkot/scylla,acbellini/seastar,kjniemi/scylla,sjperkins/seastar,printedheart/seastar,victorbriz/scylla,bowlofstew/seastar,bzero/seastar,printedheart/seastar,avikivity/scylla,dwdm/seastar,scylladb/scylla-seastar,victorbriz/scylla,dreamsxin/seastar,shaunstanislaus/scylla,linearregression/scylla,duarten/scylla,dwdm/scylla,wildinto/scylla,anzihenry/seastar,bowlofstew/scylla,tempbottle/scylla,syuu1228/seastar,scylladb/scylla,sjperkins/seastar,capturePointer/scylla,wildinto/scylla,ducthangho/imdb,phonkee/scylla,victorbriz/scylla,acbellini/scylla,kjniemi/seastar,flashbuckets/seastar,scylladb/seastar,kangkot/scylla,avikivity/scylla,scylladb/scylla,bowlofstew/scylla,rentongzhang/scylla,linearregression/seastar,stamhe/scylla,avikivity/seastar,syuu1228/seastar,respu/scylla,glommer/scylla,scylladb/scylla,tempbottle/seastar,stamhe/seastar,duarten/scylla,wildinto/seastar,eklitzke/scylla,kjniemi/seastar,chunshengster/seastar,leejir/seastar,chunshengster/seastar,rentongzhang/scylla,senseb/scylla,capturePointer/scylla,tempbottle/scylla,avikivity/scylla,shyamalschandra/seastar,asias/scylla,dreamsxin/seastar,avikivity/seastar,mixja/seastar,xtao/seastar,kangkot/scylla,xtao/seastar,hongliangzhao/seastar,mixja/seastar,asias/scylla,jonathanleang/seastar,eklitzke/scylla,norcimo5/seastar,respu/scylla,dwdm/scylla,duarten/scylla,wildinto/seastar,flashbuckets/seastar,senseb/scylla,anzihenry/seastar,slivne/seastar,shaunstanislaus/scylla,justintung/scylla,dwdm/scylla