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A D_FAILED disk transitions as quickly as possible to D_DISKLESS. But in the "unresponsive local disk" case, there remains a time window where a administrative detach command could find the disk already failed, but some internal meta data IO against the unresponsive local disk still pending. In that case, drbd_md_get_buffer() will return NULL. Don't unconditionally call drbd_md_put_buffer(), or it will cause refcount imbalance, and prevent any further re-attach on this volume (until it is deleted and re-created). Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> Signed-off-by: Jens Axboe <axboe@fb.com> |
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| .. | ||
| drbd_actlog.c | ||
| drbd_bitmap.c | ||
| drbd_debugfs.c | ||
| drbd_debugfs.h | ||
| drbd_int.h | ||
| drbd_interval.c | ||
| drbd_interval.h | ||
| drbd_main.c | ||
| drbd_nl.c | ||
| drbd_nla.c | ||
| drbd_nla.h | ||
| drbd_proc.c | ||
| drbd_protocol.h | ||
| drbd_receiver.c | ||
| drbd_req.c | ||
| drbd_req.h | ||
| drbd_state_change.h | ||
| drbd_state.c | ||
| drbd_state.h | ||
| drbd_strings.c | ||
| drbd_strings.h | ||
| drbd_vli.h | ||
| drbd_worker.c | ||
| Kconfig | ||
| Makefile | ||