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After disconnect (most likely mdev->net_cnt == 0) and we are still in an unstable state (!drbd_state_is_stable()). When we get an IO request in drbd_get_max_buffers() (called from __inc_ap_bio_cond(), called from inc_ap_bio()) we wake up misc_wait. Misc_wait is also used in inc_ap_bio() to sleep until the outcome of __inc_ap_bio_cond() changes. => Busy loop! Solution: Have a dedicated wait queue for get_net_conf() and put_net_conf(). Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> |
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| .. | ||
| drbd_actlog.c | ||
| drbd_bitmap.c | ||
| drbd_int.h | ||
| drbd_main.c | ||
| drbd_nl.c | ||
| drbd_proc.c | ||
| drbd_receiver.c | ||
| drbd_req.c | ||
| drbd_req.h | ||
| drbd_strings.c | ||
| drbd_vli.h | ||
| drbd_worker.c | ||
| drbd_wrappers.h | ||
| Kconfig | ||
| Makefile | ||