Lars Ellenberg cde81d99af drbd: fix race between handshake and admin disconnect/down ...

conn_try_disconnect() could potentialy hit the BUG_ON()
in _conn_set_state() where it iterates over _drbd_set_state()
and "asserts" via BUG_ON() that the latter was successful.

If the STATE_SENT bit was not yet visible to conn_is_valid_transition()
early in _conn_request_state(), but became visible before conn_set_state()
later in that call path, we could hit the BUG_ON() after _drbd_set_state(),
because it returned SS_IN_TRANSIENT_STATE.

To avoid that race, we better protect set_bit(SENT_STATE) with the spinlock.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

2017-08-29 15:34:46 -06:00

..

drbd_actlog.c

block: replace bi_bdev with a gendisk pointer and partitions index

2017-08-23 12:49:55 -06:00

drbd_bitmap.c

block: replace bi_bdev with a gendisk pointer and partitions index

2017-08-23 12:49:55 -06:00

drbd_debugfs.c

drbd: make intelligent use of blkdev_issue_zeroout

2017-04-08 11:25:38 -06:00

drbd_debugfs.h

drbd: debugfs: add basic hierarchy

2014-07-10 18:35:16 +02:00

drbd_int.h

drbd: introduce drbd_recv_header_maybe_unplug

2017-08-29 15:34:43 -06:00

drbd_interval.c

drbd: use RB_DECLARE_CALLBACKS() to define augment callbacks

2014-09-18 09:00:17 -06:00

drbd_interval.h

drbd: code cleanups without semantic changes

2016-06-13 21:43:07 -06:00

drbd_main.c

drbd: fix rmmod cleanup, remove _all_ debugfs entries

2017-08-29 15:34:45 -06:00

drbd_nl.c

drbd: fix potential deadlock when trying to detach during handshake

2017-08-29 15:34:45 -06:00

drbd_nla.c

netlink: pass extended ACK struct to parsing functions

2017-04-13 13:58:22 -04:00

drbd_nla.h

drbd: Split off netlink mandatory attribute handling into separate file

2012-11-08 16:57:45 +01:00

drbd_proc.c

drbd: A single dot should be put into a sequence.

2017-08-29 15:34:45 -06:00

drbd_protocol.h

drbd: introduce WRITE_SAME support

2016-06-13 21:43:07 -06:00

drbd_receiver.c

drbd: fix race between handshake and admin disconnect/down

2017-08-29 15:34:46 -06:00

drbd_req.c

drbd: add explicit plugging when submitting batches

2017-08-29 15:34:44 -06:00

drbd_req.h

drbd: introduce drbd_recv_header_maybe_unplug

2017-08-29 15:34:43 -06:00

drbd_state_change.h

drbd: Backport the "events2" command

2015-11-25 09:22:00 -07:00

drbd_state.c

drbd: fix potential deadlock when trying to detach during handshake

2017-08-29 15:34:45 -06:00

drbd_state.h

drbd: fix potential deadlock when trying to detach during handshake

2017-08-29 15:34:45 -06:00

drbd_strings.c

drbd: code cleanups without semantic changes

2016-06-13 21:43:07 -06:00

drbd_strings.h

drbd: Move string function prototypes from linux/drbd.h to drbd_string.h

2014-02-17 16:50:37 +01:00

drbd_vli.h

Fix common misspellings

2011-03-31 11:26:23 -03:00

drbd_worker.c

drbd: fix potential get_ldev/put_ldev refcount imbalance during attach

2017-08-29 15:34:45 -06:00

Kconfig

drbd: update Kconfig to match current dependencies

2012-12-06 13:08:29 +01:00

Makefile

drbd: debugfs: add basic hierarchy

2014-07-10 18:35:16 +02:00