!1126 [sync] PR-1115: userswap bugfix

Merge Pull Request from: @openeuler-sync-bot 
 

Origin pull request: 
https://gitee.com/openeuler/kernel/pulls/1115 
 
PR sync from:  Peng Zhang <zhangpeng362@huawei.com>
 https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/thread/GRJWIT22G2QJFYJL64FIBD6E7V5TTDY5/ 
From: ZhangPeng <zhangpeng362@huawei.com>

Fix Fuzz test BUG_ON and failure to swap out large memory. Two userswap
bugfixes synchronized from hulk5.10.

ZhangPeng (2):
  userswap: fix BUG_ON in userfaultfd_release()
  userswap: fix kmalloc ENOMEM failed for a large memory


-- 
2.25.1
 
 
Link:https://gitee.com/openeuler/kernel/pulls/1126

 

Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>