block/cgroup: Drop stale -EBUSY retry from blkg_conf_prep()#985
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Since commit 8f4236d ("block: remove QUEUE_FLAG_BYPASS and ->bypass") nothing in the blkcg blkg lookup/creation path returns -EBUSY anymore. blkg_conf_prep() nevertheless still retries at fail_exit with msleep(10) and restart_syscall() — logic added in 2012 when blk_queue_bypass() could cause blkg lookup/creation to fail with -EBUSY while the queue was temporarily bypassed during elevator changes. Signed-off-by: Yang Xiuwei <yangxiuwei@kylinos.cn> Reviewed-by: Tao Cui <cuitao@kylinos.cn>
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Pull request for series with
subject: block/cgroup: Drop stale -EBUSY retry from blkg_conf_prep()
version: 1
url: https://patchwork.kernel.org/project/linux-block/list/?series=1114610