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088b70526d
linux/drivers/block/drbd
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Lars Ellenberg 088b70526d drbd: fix queue limit setup for discard 
We cannot possibly support SECDISCARD, even if all backend devices would
support it: if our peer is currently unreachable, some instance of the
data may obviously still be recoverable.

We did not set discard_granularity at all.  We don't really care (yet),
we only pass them on, so for now, set our granularity to one sector.
blkdev_stack_limits() takes care of the rest.

If we decide we cannot support discards,
not only clear the (not user visible) QUEUE_FLAG_DISCARD,
but set both (user visible) discard_granularity and max_discard_sectors
to zero, to avoid confusion with e.g. lsblk -D.

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 09:22:02 -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 drbd: use bitmap_weight() helper, don't open code 2015-11-25 09:22:02 -07:00
drbd_debugfs.c drbd: debugfs: expose ed_data_gen_id 2015-11-25 09:22:02 -07:00
drbd_debugfs.h drbd: debugfs: add basic hierarchy 2014-07-10 18:35:16 +02:00
drbd_int.h drbd: debugfs: expose ed_data_gen_id 2015-11-25 09:22:02 -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 spurious alert level printk 2015-11-25 09:22:02 -07:00
drbd_nl.c drbd: fix queue limit setup for discard 2015-11-25 09:22:02 -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: Create a dedicated workqueue for sending acks on the control connection 2015-11-25 09:22:01 -07:00
drbd_receiver.c drbd: use resource name in workqueue 2015-11-25 09:22:02 -07:00
drbd_req.c drbd: Create a dedicated workqueue for sending acks on the control connection 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: Create a dedicated workqueue for sending acks on the control connection 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