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2011-09-28drbd: Rename "enum drbd_packets" to "enum drbd_packet"Andreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Move cmdname() out of drbd_int.hAndreas Gruenbacher
There is no good reason for cmdname() to be an inline function. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Do not access tconn after it was freedPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Implemented receiving of new style packets on meta socketPhilipp Reisner
Now drbd communication with protocol 100 actually works. Replaced the remaining p_header80 with p_header where we no longer know which header it is. In the places where p_header80 is still in use, it is on purpose, because we know that it is an old style header there. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Use new header layoutPhilipp Reisner
The new header layout will only be used if the peer supports it of course. For the first packet and the handshake packet the old (h80) layout is used for compatibility reasons. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-21floppy: use del_timer_sync() in init cleanupCarsten Emde
When no floppy is found the module code can be released while a timer function is pending or about to be executed. CPU0 CPU1 floppy_init() timer_softirq() spin_lock_irq(&base->lock); detach_timer(); spin_unlock_irq(&base->lock); -> Interrupt del_timer(); return -ENODEV; module_cleanup(); <- EOI call_timer_fn(); OOPS Use del_timer_sync() to prevent this. Signed-off-by: Carsten Emde <C.Emde@osadl.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jens Axboe <axboe@kernel.dk> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2011-09-21drivers/block/loop.c: remove unnecessary bdev argument from loop_clr_fd()Ayan George
If the loop device is associated (lo->lo_state == Lo_bound), it will have a valid bdev pointed to by lo->lo_device. There is no reason to ever pass an additional block_device pointer. Signed-off-by: Ayan George <ayan.george@canonical.com> Cc: Phillip Susi <psusi@cfl.rr.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@google.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2011-09-21drivers/block/loop.c: emit uevent on auto releasePhillip Susi
The loopback driver failed to emit the change uevent when auto releasing the device. Fixed lo_release() to pass the bdev to loop_clr_fd() so it can emit the event. Signed-off-by: Phillip Susi <psusi@cfl.rr.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Ayan George <ayan@ayan.net> Signed-off-by: Andrew Morton <akpm@google.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2011-09-21drivers/block/cpqarray.c: use pci_dev->revisionSergei Shtylyov
This driver uses PCI_CLASS_REVISION instead of PCI_REVISION_ID, so it wasn't converted by commit 44c10138fd4bbc4b6 ("PCI: Change all drivers to use pci_device->revision"). Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Acked-by: Mike Miller <mike.miller@hp.com> Cc: Chirag Kantharia <chirag.kantharia@hp.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@google.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2011-09-15Merge branch 'master' into for-nextJiri Kosina
Fast-forward merge with Linus to be able to merge patches based on more recent version of the tree.
2011-09-15Remove unneeded version.h includes from drivers/block/Jesper Juhl
It was pointed out by 'make versioncheck' that some includes of linux/version.h are not needed in drivers/block/. This patch removes them. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-09-15treewide: remove extra semicolons from various parts of the kernelJustin P. Mattock
This is a resend from the original, changing the title from PATCH to RFC(since this is a review for commit, and I should have put that the first go around). and also removing some of the commit's with ia64 and bash since it is significant. let me know if I might have missed anything etc.. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-09-15drbd: Use angle brackets for system includesJoe Perches
Use the normal include style. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-09-15drbd: Convert vmalloc/memset to vzallocJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-09-12block: remove support for bio remapping from ->make_requestChristoph Hellwig
There is very little benefit in allowing to let a ->make_request instance update the bios device and sector and loop around it in __generic_make_request when we can archive the same through calling generic_make_request from the driver and letting the loop in generic_make_request handle it. Note that various drivers got the return value from ->make_request and returned non-zero values for errors. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: NeilBrown <neilb@suse.de> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-29drbd: Replaced all p_header80 with a generic p_headerPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: Preparing to use p_header96 for all packetsPhilipp Reisner
recv_bm_rle_bits() should not make any assumptions abou the layout of the packet header Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: Made drbd_flush_workqueue() to take a tconn instead of an mdevPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: moved crypto transformations and friends from mdev to tconnPhilipp Reisner
sed -i \ -e 's/mdev->cram_hmac_tfm/mdev->tconn->cram_hmac_tfm/g' \ -e 's/mdev->integrity_w_tfm/mdev->tconn->integrity_w_tfm/g' \ -e 's/mdev->integrity_r_tfm/mdev->tconn->integrity_r_tfm/g' \ -e 's/mdev->int_dig_out/mdev->tconn->int_dig_out/g' \ -e 's/mdev->int_dig_in/mdev->tconn->int_dig_in/g' \ -e 's/mdev->int_dig_vv/mdev->tconn->int_dig_vv/g' \ *.[ch] Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: moved req_lock and transfer log from mdev to tconnPhilipp Reisner
sed -i \ -e 's/mdev->req_lock/mdev->tconn->req_lock/g' \ -e 's/mdev->unused_spare_tle/mdev->tconn->unused_spare_tle/g' \ -e 's/mdev->newest_tle/mdev->tconn->newest_tle/g' \ -e 's/mdev->oldest_tle/mdev->tconn->oldest_tle/g' \ -e 's/mdev->out_of_sequence_requests/mdev->tconn->out_of_sequence_requests/g' \ *.[ch] Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: moved agreed_pro_version, last_received and ko_count to tconnPhilipp Reisner
sed -i \ -e 's/mdev->agreed_pro_version/mdev->tconn->agreed_pro_version/g' \ -e 's/mdev->last_received/mdev->tconn->last_received/g' \ -e 's/mdev->ko_count/mdev->tconn->ko_count/g' \ *.[ch] Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: moved receiver, worker and asender from mdev to tconnPhilipp Reisner
Patch mostly: sed -i -e 's/mdev->receiver/mdev->tconn->receiver/g' \ -e 's/mdev->worker/mdev->tconn->worker/g' \ -e 's/mdev->asender/mdev->tconn->asender/g' \ *.[ch] Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: moved data and meta from mdev to tconnPhilipp Reisner
Patch mostly: sed -i -e 's/mdev->data/mdev->tconn->data/g' \ -e 's/mdev->meta/mdev->tconn->meta/g' \ *.[ch] Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: moved net_cont and net_cnt_wait from mdev to tconnPhilipp Reisner
Patch partly generated by: sed -i -e 's/get_net_conf(mdev)/get_net_conf(mdev->tconn)/g' \ -e 's/put_net_conf(mdev)/put_net_conf(mdev->tconn)/g' \ -e 's/get_net_conf(odev)/get_net_conf(odev->tconn)/g' \ -e 's/put_net_conf(odev)/put_net_conf(odev->tconn)/g' \ *.[ch] Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: moved net_conf from mdev to tconnPhilipp Reisner
Besides moving the struct member, everything else is generated by: sed -i -e 's/mdev->net_conf/mdev->tconn->net_conf/g' \ -e 's/odev->net_conf/odev->tconn->net_conf/g' \ *.[ch] Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: Minimal struct drbd_tconnPhilipp Reisner
Starting to dissolve the network connection from the actual block devices. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: Interval tree bugfixAndreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: Inline function overlaps() is now unusedAndreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: Remove some useless paranoia codeAndreas Gruenbacher
The open_cnt check is an open-coded D_ASSERT() check. In case the data.work queue is not empty, it does not really help to know which drbd_work elements remained on that list: they will be freed immediately afterwards, anyway. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: Replace the ERR_IF macro with an assert-like macroAndreas Gruenbacher
Remove the file name and line number from the syslog messages generated: we have no duplicate function names, and no function contains the same assertion more than once. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: Convert all constants in enum drbd_thread_state to upper caseAndreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: Convert all constants in enum drbd_req_event to upper caseAndreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: Remove the unused hash tablesAndreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: Use interval tree for overlapping epoch entry detectionAndreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: Put sector and size in struct drbd_epoch_entry into struct drbd_intervalAndreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: Use the read and write request trees for request lookupsAndreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-29drbd: Add read_requests treeAndreas Gruenbacher
We do not do collision detection for read requests, but we still need to look up the request objects when we receive a package over the network. Using the same data structure for read and write requests results in simpler code once the tl_hash and app_reads_hash tables are removed. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-25drbd: Use interval tree for overlapping write request detectionAndreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-25drbd: Put sector and size in struct drbd_request into struct drbd_intervalAndreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-25drbd: Add interval tree data structureAndreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-25drbd: Request lookup code cleanup (4)Andreas Gruenbacher
Factor out duplicate code in got_NegAck(). Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-25drbd: Request lookup code cleanup (3)Andreas Gruenbacher
Get rid of the ar_id_to_req() and ack_id_to_req() wrappers. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-25drbd: Request lookup code cleanup (2)Andreas Gruenbacher
Unify the ar_id_to_req() and ack_id_to_req() functions: make both fail if the consistency check fails. Move the request lookup code now duplicated in both functions into its own function. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-25drbd: Request lookup code cleanup (1)Andreas Gruenbacher
Move _ar_id_to_req() to drbd_receiver.c and mark it non-inline. Remove the leading underscores from _ar_id_to_req() and _ack_id_to_req(). Mark ar_hash_slot() inline. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-25drbd: Update outdated commentAndreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-25drbd: Move drbd_free_tl_hash() to drbd_main()Andreas Gruenbacher
This is the only place where this function is used. Make it static. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-25drbd: Magic reserved block_id value cleanupAndreas Gruenbacher
The ID_VACANT definition has become entirely irrelevant by now. The is_syncer_block_id() macro does not improve the code, so eliminated it. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-25drbd: Endianness convert the constants instead of the variablesAndreas Gruenbacher
Converting the constants happens at compile time. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-25drbd: Get rid of BE_DRBD_MAGIC and BE_DRBD_MAGIC_BIGAndreas Gruenbacher
Converting the constants happens at compile time. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-08-25drbd: Consistently use block_id == ID_SYNCER for checksum based resync and ↵Andreas Gruenbacher
online verify DRBD_MAGIC has nothing to do with block ids and the funny values computed were not actually used, anyway. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
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