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* Merge branch 'for-next' into for-linusJiri Kosina2010-03-082-3/+3
|\ | | | | | | | | | | | | | | | | Conflicts: Documentation/filesystems/proc.txt arch/arm/mach-u300/include/mach/debug-macro.S drivers/net/qlge/qlge_ethtool.c drivers/net/qlge/qlge_main.c drivers/net/typhoon.c
| * tree-wide: Assorted spelling fixesDaniel Mack2010-02-092-3/+3
| | | | | | | | | | | | | | | | | | | | | | In particular, several occurances of funny versions of 'success', 'unknown', 'therefore', 'acknowledge', 'argument', 'achieve', 'address', 'beginning', 'desirable', 'separate' and 'necessary' are fixed. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Joe Perches <joe@perches.com> Cc: Junio C Hamano <gitster@pobox.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | block: Consolidate phys_segment and hw_segment limitsMartin K. Petersen2010-02-261-2/+1
| | | | | | | | | | | | | | | | | | Except for SCSI no device drivers distinguish between physical and hardware segment limits. Consolidate the two into a single segment limit. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | block: Rename blk_queue_max_sectors to blk_queue_max_hw_sectorsMartin K. Petersen2010-02-261-1/+1
|/ | | | | | | | | | | | | The block layer calling convention is blk_queue_<limit name>. blk_queue_max_sectors predates this practice, leading to some confusion. Rename the function to appropriately reflect that its intended use is to set max_hw_sectors. Also introduce a temporary wrapper for backwards compability. This can be removed after the merge window is closed. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* drbd: null dereference bugDan Carpenter2010-01-251-1/+1
| | | | | | | epoch is always NULL here. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
* drbd: fix max_segment_size initializationLars Ellenberg2010-01-221-1/+1
| | | | | | | | | | | | | | blk_queue_make_request() internally calls blk_set_default_limits(), so calling blk_queue_max_segment_size() before is useless. Ergo: move the call to blk_queue_max_segment_size() down a few lines. Impact: If, after a fresh modprobe, you first connect a Diskless drbd, then attach, this could result in a DRBD Protocol Error at first. The next connection attempt would then succeeded. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Allow online resizing of DRBD devices while peer not reachable (needs ↵Philipp Reisner2010-01-123-11/+15
| | | | | | | to be explicitly forced) Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Don't go into StandAlone mode when authentification failes because of ↵Johannes Thoma2010-01-121-9/+22
| | | | | | | network error Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: check on CONFIG_LBDAF, not LBDLars Ellenberg2010-01-071-1/+1
| | | | | | | | | | | It is called LBDAF since 2.6.31. impact: without this change, on 32bit, DRBD would wrongly claim to only support 2TiB devices. Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
* drivers/block/drbd: Correct NULL testJulia Lawall2010-01-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Test the just-allocated value for NULL rather than some other value. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression x,y; statement S; @@ x = \(kmalloc\|kcalloc\|kzalloc\)(...); ( if ((x) == NULL) S | if ( - y + x == NULL) S ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
* drbd: Silenced an assert that could triggered after changing write ordering ↵Philipp Reisner2009-12-311-4/+5
| | | | | | | | | | method Immediately after changing the write ordering method, the epoch can already be finished at this point. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Kconfig fixJohannes Thoma2009-12-291-1/+1
| | | | | | | | !CONFIG_OPT evalues to FALSE if CONFIG_OPT='m'. Do not display the "DRBD disabled..." message if the dependencies are compiled as module. Signed-off-by: Johannes Thoma <johannes.thoma@linbit.com> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
* drbd: Fix for a race between IO and a detach operation [Bugz 262]Philipp Reisner2009-12-291-0/+1
| | | | | | | | | In D_DISKLESS we do not hand out any new references to ldev (local_cnt) therefore waiting until all previously handed out refereces got returned is sufficient before actually freeing mdev->ldev. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: Use drbd_crypto_is_hash() instead of an open coded checkPhilipp Reisner2009-12-291-1/+1
| | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: remove unused #include <linux/version.h>Huang Weiyi2009-12-213-3/+0
| | | | | | | | | | Remove unused #include <linux/version.h>('s) in drivers/block/drbd/drbd_main.c drivers/block/drbd/drbd_receiver.c drivers/block/drbd/drbd_worker.c Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
* drbd: remove duplicated #includeHuang Weiyi2009-12-211-1/+0
| | | | | | | | Remove duplicated #include('s) in drivers/block/drbd/drbd_worker.c Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
* drbd: Fix test of unsigned in _drbd_fault_random()Roel Kluin2009-12-211-1/+1
| | | | | | | | rsp->count is unsigned so the test does not work. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
* drbd: Constify struct file_operationsEmese Revfy2009-12-213-3/+3
| | | | | Signed-off-by: Emese Revfy <re.emese@gmail.com> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
* drbd: Following the hmac change to SHASH (see linux commit 8bd1209cfff)Philipp Reisner2009-12-091-2/+1
| | | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* drbd_req.c: use part_[inc|dec]_in_flight()Philipp Reisner2009-12-031-2/+2
| | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* Fixed a regression in resync decission code drbd_uuid_compare() [Bugz 260]Philipp Reisner2009-11-241-0/+1
| | | | | | | | | | Since 8.3.3 we fail to do the resync when a partial resynch is not possible, but a full synch is necessary. This regression was introduced with 7101539930c0a89146959e7a39c09ad9c3516434 Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* add missing state change on corrupt packet header in drbd_recv_headerLars Ellenberg2009-11-241-1/+3
| | | | | | | | | | | Otherwise the 'state fixup' in the receiver will change to Unconnected, but the receiver will terminate itself, and any attempt at 'down'ing that drbd later will block forever. see also Bugz. #259 Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* fix in-kernel configuration serializationLars Ellenberg2009-11-241-1/+1
| | | | | | | | | this is uncritical, as we still also serialize in userland, but to correctly serialize on the CONFIG_PENDING bit, it must be wait_event(state_wait, \!test_and_set_bit) Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: performance - don't lose unplug eventsLars Ellenberg2009-11-041-1/+6
| | | | | 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 Reisner2009-11-041-4/+0
| | | | | | | | | | | | | | | | 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 Reisner2009-11-041-4/+3
| | | | | | | | 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 Ellenberg2009-11-041-5/+9
| | | | | | | | | | 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 Ellenberg2009-11-041-1/+1
| | | | | Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
* drbd: fix in_flight rw indexingJens Axboe2009-10-281-2/+2
| | | | Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* drbd: needs __ratelimit()Randy Dunlap2009-10-071-0/+1
| | | | | | | | | | 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 Reisner2009-10-061-1/+6
| | | | | | | | 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 Axboe2009-10-051-2/+2
| | | | Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* drbd: remove tracing bitsJens Axboe2009-10-0111-1021/+3
| | | | | | They should be reimplemented in the current scheme. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* dropping unneeded include autoconf.hLars Ellenberg2009-10-017-7/+0
| | | | | | | | | 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 Reisner2009-10-0117-0/+20363
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
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