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* drbd: performance - don't lose unplug eventsLars Ellenberg2009-11-04
| | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* Do not deadlock in drbd_disconnect() [bugz 258]Philipp Reisner2009-11-04
| | | | | | | | | | | | | | | | When there are many blocks on the fly (ua), and the AL gets into "starving" mode (random IO, scattered all over the device), and the connections gets interrupted, the receiver thread deadlocks in the drbd_disconnect() code path. Affected are only nodes in Primary role. The bug triggers most likely on system that mirror over "long distances" Regression introduced shortly before 8.3.3 with git commit 31e0f1250f174ac1ee317f360943a0159e19edc8 Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbdsetup X resume-io should be usable to resume IO [Bugz 256]Philipp Reisner2009-11-04
| | | | | | | | When IO gets frozen due to a broken fence-peer script, the user should be able to thaw IO by the resume-io command. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: fix check for too large lower level deviceLars Ellenberg2009-11-04
| | | | | | | | | | To check wether we are truncating a very large device due to limited meta data space, we need to check the ll_dev size. Also improve the printk to suggest "flexible" or "internal". Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* fix grammar in printkLars Ellenberg2009-11-04
| | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: fix in_flight rw indexingJens Axboe2009-10-28
| | | | Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* drbd: needs __ratelimit()Randy Dunlap2009-10-07
| | | | | | | | | | drbd_int.h uses __ratelimit(), so it needs to #include ratelimit.h: drivers/block/drbd/drbd_int.h:1765: error: implicit declaration of function '__ratelimit' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: drbd-dev@lists.linbit.com Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* drbd: Work on permission enforcementPhilipp Reisner2009-10-06
| | | | | | | | Now we have the capabilities of the sending process available, use them to enforce CAP_SYS_ADMIN. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* drbd: fixup for reverted dual in_flight patchJens Axboe2009-10-05
| | | | Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* drbd: remove tracing bitsJens Axboe2009-10-01
| | | | | | They should be reimplemented in the current scheme. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* dropping unneeded include autoconf.hLars Ellenberg2009-10-01
| | | | | | | | | It is force-included on the gcc command line since at least 2.6.15. Explicit include lines seem to break compilation now in certain configurations. Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Acked-by: Sam Ravnborg <sam@ravnborg.org>
* The DRBD driverPhilipp Reisner2009-10-01
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
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