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Project ACRN hypervisor
c6bf67543c
Unlike kqueue/kevent of BSD, the epoll of Linux could be add/del by using different API on the fly. This patch drops the notify used by mevent_add/del and call epoll_ctl to add/delete target fd. Only keeps global_head to track mevent added and makes the code logic in mevent_dispatch() a littel bit simpler. Another thing is related with epoll_ctl. If the target fd is regular fd which doesn't support epoll, epoll_ctl will return -1. When DM is start by systemd, the STDIO is not mapped to terminal, epoll_ctl on STDIO could return -1. Which block UOS boot. We only call mevent_add after confirm STDIO is mapped to terminal. Signed-off-by: Yin Fengwei <fengwei.yin@intel.com> Reviewed-by: Zhao Yakui <yakui.zhao@intel.com> Acked-by: Anthony Xu <anthony.xu@intel.com> |
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