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28bc3b8c71
linux/drivers/block/drbd
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Andreas Gruenbacher 28bc3b8c71 drbd: Fix locking across all resources 
Instead of using a rwlock for synchronizing state changes across
resources, take the request locks of all resources for global state
changes.  Use resources_mutex to serialize global state changes.

This means that taking the request lock of a resource is now enough to
prevent changes of that resource.  (Previously, a read lock on the
global state lock was needed as well.)

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 09:22:00 -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: Fix locking across all resources 2015-11-25 09:22:00 -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 locking across all resources 2015-11-25 09:22:00 -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: Move enum write_ordering_e to drbd.h 2015-11-25 09:22:00 -07:00
drbd_req.c drbd: De-inline drbd_should_do_remote() and drbd_should_send_out_of_sync() 2015-11-25 09:22:00 -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.c drbd: Fix locking across all resources 2015-11-25 09:22:00 -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
drbd_worker.c drbd: Fix locking across all resources 2015-11-25 09:22:00 -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