Cross Reference: /drivers/block/drbd/drbd

History log of /drivers/block/drbd/drbd_nl.c
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38bf1953987c1735f3c9140fca762949a8cae507	04-May-2012	Eric W. Biederman <ebiederm@xmission.com>	connector/userns: replace netlink uses of cap_raised() with capable() In 2009 Philip Reiser notied that a few users of netlink connector interface needed a capability check and added the idiom cap_raised(nsp->eff_cap, CAP_SYS_ADMIN) to a few of them, on the premise that netlink was asynchronous. In 2011 Patrick McHardy noticed we were being silly because netlink is synchronous and removed eff_cap from the netlink_skb_params and changed the idiom to cap_raised(current_cap(), CAP_SYS_ADMIN). Looking at those spots with a fresh eye we should be calling capable(CAP_SYS_ADMIN). The only reason I can see for not calling capable is that it once appeared we were not in the same task as the caller which would have made calling capable() impossible. In the initial user_namespace the only difference between between cap_raised(current_cap(), CAP_SYS_ADMIN) and capable(CAP_SYS_ADMIN) are a few sanity checks and the fact that capable(CAP_SYS_ADMIN) sets PF_SUPERPRIV if we use the capability. Since we are going to be using root privilege setting PF_SUPERPRIV seems the right thing to do. The motivation for this that patch is that in a child user namespace cap_raised(current_cap(),...) tests your capabilities with respect to that child user namespace not capabilities in the initial user namespace and thus will allow processes that should be unprivielged to use the kernel services that are only protected with cap_raised(current_cap(),..). To fix possible user_namespace issues and to just clean up the code replace cap_raised(current_cap(), CAP_SYS_ADMIN) with capable(CAP_SYS_ADMIN). Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Patrick McHardy <kaber@trash.net> Cc: Philipp Reisner <philipp.reisner@linbit.com> Acked-by: Serge E. Hallyn <serge.hallyn@canonical.com> Acked-by: Andrew G. Morgan <morgan@kernel.org> Cc: Vasiliy Kulikov <segoon@openwall.com> Cc: David Howells <dhowells@redhat.com> Reviewed-by: James Morris <james.l.morris@oracle.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net> /drivers/block/drbd/drbd_nl.c
70834d3070c3f3015ab5c05176d54bd4a0100546	23-Mar-2012	Oleg Nesterov <oleg@redhat.com>	usermodehelper: use UMH_WAIT_PROC consistently A few call_usermodehelper() callers use the hardcoded constant instead of the proper UMH_WAIT_PROC, fix them. Reported-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: Lars Ellenberg <drbd-dev@lists.linbit.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Michal Januszewski <spock@gentoo.org> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Kentaro Takeda <takedakn@nttdata.co.jp> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: James Morris <jmorris@namei.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> /drivers/block/drbd/drbd_nl.c
cfd8005c99c68882e962807d36603791adddfb9f	25-Nov-2011	Cong Wang <amwang@redhat.com>	block: remove the second argument of k[un]map_atomic() Signed-off-by: Cong Wang <amwang@redhat.com> /drivers/block/drbd/drbd_nl.c
e060c38434b2caa78efe7cedaff4191040b65a15	15-Sep-2011	Jiri Kosina <jkosina@suse.cz>	Merge branch 'master' into for-next Fast-forward merge with Linus to be able to merge patches based on more recent version of the tree.
1d273b929cad7b1ee95d5c15ac806b3abc764278	03-Jun-2011	Joe Perches <joe@perches.com>	drbd: Use angle brackets for system includes Use the normal include style. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz> /drivers/block/drbd/drbd_nl.c
ddad9ef5826efdfbbdb67b13b46f30e43e46ec3e	02-Aug-2011	H Hartley Sweeten <hartleys@visionengravers.com>	drivers/block/drbd/drbd_nl.c: use bitmap_parse instead of __bitmap_parse The buffer 'sc.cpu_mask' is a kernel buffer. If bitmap_parse is used instead of __bitmap_parse the extra parameter that indicates a kernel buffer is not needed. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Lars Ellenberg <drbd-dev@lists.linbit.com> Cc: Philipp Reisner <philipp.reisner@linbit.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> /drivers/block/drbd/drbd_nl.c
9b2f61aec73dc9e735e247fd720c673b30999e7c	24-May-2011	Philipp Reisner <philipp.reisner@linbit.com>	drbd: fix warning Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> /drivers/block/drbd/drbd_nl.c
24c4830c8ec3cbc904d84c213126a35f41a4e455	21-May-2011	Bart Van Assche <bvanassche@acm.org>	drbd: Fix spelling Found these with the help of ispell -l. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> /drivers/block/drbd/drbd_nl.c
9a0d9d0389ef769e4b01abf50fcc11407706270b	02-May-2011	Lars Ellenberg <lars.ellenberg@linbit.com>	drbd: fix schedule in atomic An administrative detach used to request a state change directly to D_DISKLESS, first suspending IO to avoid the last put_ldev() occuring from an endio handler, potentially in irq context. This is not enough on the receiving side (typically secondary), we may miss some peer_req on the way to local disk, which then may do the last put_ldev() from their drbd_peer_request_endio(). This patch makes the detach always go through the intermediate D_FAILED state. We may consider to rename it D_DETACHING. Alternative approach would be to create yet an other work item to be scheduled on the worker, do the destructor work from there, and get the timing right. manually picked commit 564040f from the drbd 8.4 branch. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
99432fcc528d7a5ac8494a4c07ad4726670c96e2	20-May-2011	Philipp Reisner <philipp.reisner@linbit.com>	drbd: Take a more conservative approach when deciding max_bio_size The old (optimistic) implementation could shrink the bio size on an primary device. Shrinking the bio size on a primary device is bad. Since there we might get BIOs with the old (bigger) size shortly after we published the new size. The new implementation is more conservative, and eventually increases the max_bio_size on a primary device (which is valid). It does so, when it knows the local limit AND the remote limit. We cache the last seen max_bio_size of the peer in the meta data, and rely on that, to make the operation of single nodes more efficient. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
21423fa79119a80e335de0c82ec29f67ed59f1bc	17-May-2011	Philipp Reisner <philipp.reisner@linbit.com>	drbd: Fixed state transitions after async outdate-peer-handler returned Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
8d49a77568d1105ff3e64aec484dac059f54824e	28-Mar-2011	Linus Torvalds <torvalds@linux-foundation.org>	Merge branch 'for-2.6.39/drivers' of git://git.kernel.dk/linux-2.6-block * 'for-2.6.39/drivers' of git://git.kernel.dk/linux-2.6-block: (122 commits) cciss: fix lost command issue drbd: need include for bitops functions declarations Revert "cciss: Add missing allocation in scsi_cmd_stack_setup and corresponding deallocation" cciss: fix missed command status value CMD_UNABORTABLE cciss: remove unnecessary casts cciss: Mask off error bits of c->busaddr in cmd_special_free when calling pci_free_consistent cciss: Inform controller we are using 32-bit tags. cciss: hoist tag masking out of loop cciss: Add missing allocation in scsi_cmd_stack_setup and corresponding deallocation cciss: export resettable host attribute drbd: drop code present under #ifdef which is relevant to 2.6.28 and below drbd: Fixed handling of read errors on a 'VerifyS' node drbd: Fixed handling of read errors on a 'VerifyT' node drbd: Implemented real timeout checking for request processing time drbd: Remove unused function atodb_endio() drbd: improve log message if received sector offset exceeds local capacity drbd: kill dead code drbd: don't BUG_ON, if bio_add_page of a single page to an empty bio fails drbd: Removed left over, now wrong comments drbd: serialize admin requests for new verify run with pending bitmap io ...
873b0d5f98ab70e4df7a62b2ef0305373f88f330	21-Jan-2011	Lars Ellenberg <lars.ellenberg@linbit.com>	drbd: serialize admin requests for new verify run with pending bitmap io This is an addendum to drbd: serialize admin requests for new resync with pending bitmap io It avoids a race that could trigger "FIXME" assert log messages. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
20ceb2b22edaf51e59e76087efdc71a16a2858de	21-Jan-2011	Lars Ellenberg <lars.ellenberg@linbit.com>	drbd: describe bitmap locking for bulk operation in finer detail Now that we do no longer in-place endian-swap the bitmap, we allow selected bitmap operations (testing bits, sometimes even settting bits) during some bulk operations. This caused us to hit a lot of FIXME asserts similar to FIXME asender in drbd_bm_count_bits, bitmap locked for 'write from resync_finished' by worker Which now is nonsense: looking at the bitmap is perfectly legal as long as it is not being resized. This cosmetic patch defines some flags to describe expectations in finer detail, so the asserts in e.g. bm_change_bits_to() can be skipped if appropriate. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
62b0da3a244ac33d25a77861ef1cc0080103f2ff	20-Jan-2011	Lars Ellenberg <lars.ellenberg@linbit.com>	drbd: log UUIDs whenever they change All decisions about sync, sync direction, and wether or not to allow a connect or attach are based on our set of UUIDs to tag a data generation. Log changes to the UUIDs whenever they occur, logging "new current UUID P:Q:R:S" is more useful than "Creating new current UUID". Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
cd88d030d41a9b0100fd5fee872024e6ebc8b276	20-Jan-2011	Philipp Reisner <philipp.reisner@linbit.com>	drbd: Provide hints with the error message when clearing the sync pause flag When the user clears the sync-pause flag, and sync stays in pause state, give hints to the user, why it still is in pause state. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
194bfb32dba8345a7e0f83e9b1ee965e14d4b679	18-Jan-2011	Lars Ellenberg <lars.ellenberg@linbit.com>	drbd: serialize admin requests for new resync with pending bitmap io Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
20ee639024e3d33111df0e343050b218c656bf16	18-Jan-2011	Philipp Reisner <philipp.reisner@linbit.com>	drbd: cleaned up __set_current_state() followed by schedule_timeout() calls Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
4b0715f09655e76ca24c35a9e25e7c464c2f7346	14-Dec-2010	Lars Ellenberg <lars.ellenberg@linbit.com>	drbd: allow petabyte storage on 64bit arch Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
19f843aa08e2d8f87a09b4c2edc43b00638423a8	15-Dec-2010	Lars Ellenberg <lars.ellenberg@linbit.com>	drbd: bitmap keep track of changes vs on-disk bitmap When we set or clear bits in a bitmap page, also set a flag in the page->private pointer. This allows us to skip writes of unchanged pages. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
24dccabb390412d04435e11cfb535df51def7b2d	12-Dec-2010	Andreas Gruenbacher <agruen@linbit.com>	drbd: Fix: drbd_bitmap_io does not return an enum determine_dev_size I guess bitmap I/O errors are supposed to cause drbd_determin_dev_size to return dev_size_error. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
f2024e7ce29f4287395ce879364cd68c7ac226f2	10-Dec-2010	Andreas Gruenbacher <agruen@linbit.com>	drbd: drbd_nl_disk_conf: Avoid a compiler warning Warning: comparison between ‘enum drbd_ret_code’ and ‘enum drbd_state_rv’ Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
81e84650c200de0695372461964dd960365696db	09-Dec-2010	Andreas Gruenbacher <agruen@linbit.com>	drbd: Use the standard bool, true, and false keywords Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
bf885f8a6772fb48409dd505a09d974a5e621f22	08-Dec-2010	Andreas Gruenbacher <agruen@linbit.com>	drbd: Be more explicit about functions that return an enum drbd_state_rv Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
116676ca621a862a8124969772f4dd61c8b40eee	08-Dec-2010	Andreas Gruenbacher <agruen@linbit.com>	drbd: Rename enum drbd_ret_codes to enum drbd_ret_code Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
2561b9c1f1d63077c41903fc6ad58dc9ec47248b	03-Dec-2010	Philipp Reisner <philipp.reisner@linbit.com>	drbd: --force option for disconnect As the network connection can be lost at any time, a --force option for disconnect is just a matter of completeness. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
42ff269d1022a86be4f526cf674998c47b7ab856	24-Nov-2010	Lars Ellenberg <lars.ellenberg@linbit.com>	drbd: add packet_type 27 (return_code_only) to netlink api In case we ever should add an other packet type, we must not reuse 27, as that currently used for "empty" return code only replies. Document it as such. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
3e3a7766c2e6995ac98e7855017abc3544d54e08	24-Nov-2010	Lars Ellenberg <lars.ellenberg@linbit.com>	drbd: use kzalloc and memset(,0,) to start with clean buffers in drbd_nl Make sure we start with clean buffers to not accidentally send garbage back to userspace. Note: has not been observed; but just in case. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
422028b1ca4c07995af82a18abced022ff4c296c	27-Oct-2010	Philipp Reisner <philipp.reisner@linbit.com>	drbd: New configuration parameters for dealing with network congestion net { on_congestion {block\|pull-ahead\|disconnect}; congestion-fill {sectors}; congestion-extents {al-extents}; } Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
1816a2b47afae838e53a177d5d166cc7be97d6b5	11-Nov-2010	Lars Ellenberg <lars.ellenberg@linbit.com>	drbd: properly use max_hw_sectors to limit the our bio size To ease tracking of bios in some hash tables, we want it to not cross certain boundaries (128k, used to be 32k). We limit the maximum bio size using queue parameters. Historically some defines and variables we use there have been named max_segment_size, which was misguided. Rename them to max_bio_size, and use [blk_]queue_max_hw_sectors where appropriate. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
3129b1b9aed15bbebde1b2a5719434273feb295d	11-Nov-2010	Lars Ellenberg <lars.ellenberg@linbit.com>	drbd: debug: limit nelink-broadcast of request on digest mismatch to 32k We used to be limited to 32k requests, but have increased that limit to 128k now. This part of the code can only deal with 32k, it would scramble arbitrary pages for larger requests. As it is used for debugging only anyways, it is ok to simply truncate the dumped data here. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
01a16b21d6adf992aa863186c3c4e561a57c1714	03-Mar-2011	Patrick McHardy <kaber@trash.net>	netlink: kill eff_cap from struct netlink_skb_parms Netlink message processing in the kernel is synchronous these days, capabilities can be checked directly in security_netlink_recv() from the current process. Signed-off-by: Patrick McHardy <kaber@trash.net> Reviewed-by: James Morris <jmorris@namei.org> [chrisw: update to include pohmelfs and uvesafb] Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: David S. Miller <davem@davemloft.net> /drivers/block/drbd/drbd_nl.c
f30195c50245d8ace628e1978b1daa8df86e7224	27-Nov-2010	Jens Axboe <jaxboe@fusionio.com>	Merge branch 'cleanup-bd_claim' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc into for-2.6.38/core
d4d77629953eabd3c14f6fa5746f6b28babfc55f	13-Nov-2010	Tejun Heo <tj@kernel.org>	block: clean up blkdev_get() wrappers and their users After recent blkdev_get() modifications, open_by_devnum() and open_bdev_exclusive() are simple wrappers around blkdev_get(). Replace them with blkdev_get_by_dev() and blkdev_get_by_path(). blkdev_get_by_dev() is identical to open_by_devnum(). blkdev_get_by_path() is slightly different in that it doesn't automatically add %FMODE_EXCL to @mode. All users are converted. Most conversions are mechanical and don't introduce any behavior difference. There are several exceptions. * btrfs now sets FMODE_EXCL in btrfs_device->mode, so there's no reason to OR it explicitly on blkdev_put(). * gfs2, nilfs2 and the generic mount_bdev() now set FMODE_EXCL in sb->s_mode. * With the above changes, sb->s_mode now always should contain FMODE_EXCL. WARN_ON_ONCE() added to kill_block_super() to detect errors. The new blkdev_get_*() functions are with proper docbook comments. While at it, add function description to blkdev_get() too. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Philipp Reisner <philipp.reisner@linbit.com> Cc: Neil Brown <neilb@suse.de> Cc: Mike Snitzer <snitzer@redhat.com> Cc: Joern Engel <joern@lazybastard.org> Cc: Chris Mason <chris.mason@oracle.com> Cc: Jan Kara <jack@suse.cz> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: KONISHI Ryusuke <konishi.ryusuke@lab.ntt.co.jp> Cc: reiserfs-devel@vger.kernel.org Cc: xfs-masters@oss.sgi.com Cc: Alexander Viro <viro@zeniv.linux.org.uk> /drivers/block/drbd/drbd_nl.c
e525fd89d380c4a94c0d63913a1dd1a593ed25e7	13-Nov-2010	Tejun Heo <tj@kernel.org>	block: make blkdev_get/put() handle exclusive access Over time, block layer has accumulated a set of APIs dealing with bdev open, close, claim and release. * blkdev_get/put() are the primary open and close functions. * bd_claim/release() deal with exclusive open. * open/close_bdev_exclusive() are combination of open and claim and the other way around, respectively. * bd_link/unlink_disk_holder() to create and remove holder/slave symlinks. * open_by_devnum() wraps bdget() + blkdev_get(). The interface is a bit confusing and the decoupling of open and claim makes it impossible to properly guarantee exclusive access as in-kernel open + claim sequence can disturb the existing exclusive open even before the block layer knows the current open if for another exclusive access. Reorganize the interface such that, * blkdev_get() is extended to include exclusive access management. @holder argument is added and, if is @FMODE_EXCL specified, it will gain exclusive access atomically w.r.t. other exclusive accesses. * blkdev_put() is similarly extended. It now takes @mode argument and if @FMODE_EXCL is set, it releases an exclusive access. Also, when the last exclusive claim is released, the holder/slave symlinks are removed automatically. * bd_claim/release() and close_bdev_exclusive() are no longer necessary and either made static or removed. * bd_link_disk_holder() remains the same but bd_unlink_disk_holder() is no longer necessary and removed. * open_bdev_exclusive() becomes a simple wrapper around lookup_bdev() and blkdev_get(). It also has an unexpected extra bdev_read_only() test which probably should be moved into blkdev_get(). * open_by_devnum() is modified to take @holder argument and pass it to blkdev_get(). Most of bdev open/close operations are unified into blkdev_get/put() and most exclusive accesses are tested atomically at the open time (as it should). This cleans up code and removes some, both valid and invalid, but unnecessary all the same, corner cases. open_bdev_exclusive() and open_by_devnum() can use further cleanup - rename to blkdev_get_by_path() and blkdev_get_by_devt() and drop special features. Well, let's leave them for another day. Most conversions are straight-forward. drbd conversion is a bit more involved as there was some reordering, but the logic should stay the same. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Neil Brown <neilb@suse.de> Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Acked-by: Mike Snitzer <snitzer@redhat.com> Acked-by: Philipp Reisner <philipp.reisner@linbit.com> Cc: Peter Osterlund <petero2@telia.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Jan Kara <jack@suse.cz> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andreas Dilger <adilger.kernel@dilger.ca> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <joel.becker@oracle.com> Cc: Alex Elder <aelder@sgi.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: dm-devel@redhat.com Cc: drbd-dev@lists.linbit.com Cc: Leo Chen <leochen@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: Chris Mason <chris.mason@oracle.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Cc: Joern Engel <joern@logfs.org> Cc: reiserfs-devel@vger.kernel.org Cc: Alexander Viro <viro@zeniv.linux.org.uk> /drivers/block/drbd/drbd_nl.c
a8a4e51e6965db84d2af041370ea2ab6232aa4f1	25-Aug-2010	Philipp Reisner <philipp.reisner@linbit.com>	drbd: REQ_HARDBARRIER -> REQ_FUA transition for meta data accesses Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
2451fc3b2bd3a7205270da75a21dde0d5d7c96a2	24-Aug-2010	Philipp Reisner <philipp.reisner@linbit.com>	drbd: Removed the BIO_RW_BARRIER support form the receiver/epoch code Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
82f59cc6353889b426cf13b6596d5a3d100fa09e	16-Oct-2010	Lars Ellenberg <lars.ellenberg@linbit.com>	drbd: fix potential deadlock on detach If we have contention in drbd_al_begin_iod (heavy randon IO), an administrative request to detach the disk may deadlock for similar reasons as the recently fixed deadlock if detaching because of IO-error. The approach taken here is to either go through the intermediate cleanup state D_FAILED, or first lock out application io, don't just go directly to D_DISKLESS. We need an additional state bit (WAS_IO_ERROR) to distinguish the -> D_FAILED because of IO-error from other failures. Sanitize D_ATTACHING -> D_FAILED to D_ATTACHING -> D_DISKLESS. If only attaching, ldev may be missing still, but would be referenced from within the after_state_ch for -> D_FAILED, potentially dereferencing a NULL pointer. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
aaa8e2b34c35d67abf1892cd62ea4e7565ca262c	15-Oct-2010	Lars Ellenberg <lars.ellenberg@linbit.com>	drbd: consolidate explicit drbd_md_sync into drbd_create_new_uuid Every code path changing the current UUID needs to get it on stable storage anyways. Flush it to disk right there, remove the now obsolte explicit drbd_md_sync statements in the other code paths. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c
0f8488e1608b6e30e705460f8110888c645f7f9f	13-Oct-2010	Lars Ellenberg <lars.ellenberg@linbit.com>	drbd: cleanup useless leftover warn/error printk's Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> /drivers/block/drbd/drbd_nl.c