mirror of https://gitee.com/openkylin/linux.git
009ba89db5
An administrative detach used to request a state change directly to D_DISKLESS, first suspending IO to avoid the last put_ldev() occuring from an endio handler, potentially in irq context. This is not enough on the receiving side (typically secondary), we may miss some peer_req on the way to local disk, which then may do the last put_ldev() from their drbd_peer_request_endio(). This patch makes the detach always go through the intermediate D_FAILED state. We may consider to rename it D_DETACHING. Alternative approach would be to create yet an other work item to be scheduled on the worker, do the destructor work from there, and get the timing right. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> |
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Kconfig | ||
Makefile | ||
drbd_actlog.c | ||
drbd_bitmap.c | ||
drbd_int.h | ||
drbd_interval.c | ||
drbd_interval.h | ||
drbd_main.c | ||
drbd_nl.c | ||
drbd_proc.c | ||
drbd_receiver.c | ||
drbd_req.c | ||
drbd_req.h | ||
drbd_state.c | ||
drbd_state.h | ||
drbd_strings.c | ||
drbd_vli.h | ||
drbd_worker.c | ||
drbd_wrappers.h |