Lars Ellenberg 6434f404b4 drbd: fix refcount error during detach of an already failed disk ...

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>

2015-11-25 09:22:01 -07:00

..

drbd_actlog.c

block: add a bi_error field to struct bio

2015-07-29 08:55:15 -06:00

drbd_bitmap.c

Merge branch 'akpm' (patches from Andrew)

2015-11-07 14:32:45 -08:00

drbd_debugfs.c

make simple_positive() public

2015-06-23 18:02:01 -04:00

drbd_debugfs.h

drbd: debugfs: add basic hierarchy

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

drbd_int.h

drbd: improve network timeout detection

2015-11-25 09:22:01 -07:00

drbd_interval.c

drbd: use RB_DECLARE_CALLBACKS() to define augment callbacks

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

drbd_interval.h

drbd: application writes may set-in-sync in protocol != C

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

drbd_main.c

drbd: Fix locking across all resources

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

drbd_nl.c

drbd: fix refcount error during detach of an already failed disk

2015-11-25 09:22:01 -07:00

drbd_nla.c

drbd: Remove drbd_wrappers.h

2014-04-30 13:46:54 -06:00

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: Move enum write_ordering_e to drbd.h

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

drbd_protocol.h

drbd: Enable QUEUE_FLAG_DISCARD only if the peer can recieve P_TRIM

2014-04-30 13:46:55 -06:00

drbd_receiver.c

drbd: Backport the "events2" command

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

drbd_req.c

drbd: improve network timeout detection

2015-11-25 09:22:01 -07:00

drbd_req.h

drbd: De-inline drbd_should_do_remote() and drbd_should_send_out_of_sync()

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

drbd_state_change.h

drbd: Backport the "events2" command

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

drbd_state.c

drbd: fix NULL deref in remember_new_state

2015-11-25 09:22:01 -07:00

drbd_state.h

drbd: Fix locking across all resources

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

drbd_strings.c

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

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

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: improve network timeout detection

2015-11-25 09:22:01 -07:00

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