linux/drivers/block/drbd
Lars Ellenberg 6a8d68b187 drbd: don't implicitly resize Diskless node beyond end of device
During handshake, we compare backend sizes, and user set limits,
and agree on what device size we are going to expose.

We remember that last-agreed-size in our meta data.

But if we come up diskless, we have to accept what the peer
presents us with. We used to accept the peers maximum potential
capacity (backend size), which is wrong, and could lead to IO errors
due to access beyond end of device.

Instead, we need to accept the peer's current size.
Unless that is communicated as 0, in which case we
accept the backend size, or the user set limit, if set.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2014-07-10 18:34:59 +02:00
..
Kconfig drbd: update Kconfig to match current dependencies 2012-12-06 13:08:29 +01:00
Makefile drbd: Split off netlink mandatory attribute handling into separate file 2012-11-08 16:57:45 +01:00
drbd_actlog.c drbd: get rid of drbd_queue_work_front 2014-07-10 18:34:56 +02:00
drbd_bitmap.c drbd: get rid of atomic update on disk bitmap works 2014-07-10 18:34:49 +02:00
drbd_int.h drbd: fix bogus resync stats in /proc/drbd 2014-07-10 18:34:59 +02:00
drbd_interval.c Merge branch 'drbd-8.4_ed6' into for-3.8-drivers-drbd-8.4_ed6 2012-11-09 14:20:23 +01:00
drbd_interval.h drbd: Iterate over all overlapping intervals in a tree 2011-10-14 16:47:37 +02:00
drbd_main.c drbd: Remove unnecessary/unused code 2014-07-10 18:34:58 +02:00
drbd_nl.c drbd: silence -Wmissing-prototypes warnings 2014-07-10 18:34:57 +02:00
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: fix bogus resync stats in /proc/drbd 2014-07-10 18:34:59 +02:00
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: don't implicitly resize Diskless node beyond end of device 2014-07-10 18:34:59 +02:00
drbd_req.c drbd: get rid of drbd_queue_work_front 2014-07-10 18:34:56 +02:00
drbd_req.h drbd: silence -Wmissing-prototypes warnings 2014-07-10 18:34:57 +02:00
drbd_state.c drbd: silence -Wmissing-prototypes warnings 2014-07-10 18:34:57 +02:00
drbd_state.h drbd: Rename drbd_tconn -> drbd_connection 2014-02-17 16:44:47 +01:00
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: get rid of drbd_queue_work_front 2014-07-10 18:34:56 +02:00