Commits
Merge tag 'for-5.2/io_uring-20190507' of git://git.kernel.dk/linux-block Pull io_uring updates from Jens Axboe: "Set of changes/improvements for io_uring. This contains: - Fix of a shadowed variable (Colin) - Add support for draining commands (me) - Add support for sync_file_range() (me) - Add eventfd support (me) - cpu_online() fix (Shenghui) - Removal of a redundant ->error assignment (Stefan)" * tag 'for-5.2/io_uring-20190507' of git://git.kernel.dk/linux-block: io_uring: use cpu_online() to check p->sq_thread_cpu instead of cpu_possible() io_uring: fix shadowed variable ret return code being not checked req->error only used for iopoll io_uring: add support for eventfd notifications io_uring: add support for IORING_OP_SYNC_FILE_RANGE fs: add sync_file_range() helper io_uring: add support for marking commands as draining