Hitoshi Mitake 6a55c82cec sheepdog: serialize requests to overwrapping area ... Current sheepdog driver only serializes create requests in oid unit. This mechanism isn't enough for handling requests to overwrapping area spanning multiple oids, so it can result bugs like below: https://bugs.launchpad.net/sheepdog-project/+bug/1456421 This patch adds a new serialization mechanism for the problem. The difference from the old one is: 1. serialize entire aiocb if their targetting areas overwrap 2. serialize all requests (read, write, and discard), not only creates This patch also removes the old mechanism because the new one can be an alternative. Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Cc: Teruaki Ishizaki <ishizaki.teruaki@lab.ntt.co.jp> Cc: Vasiliy Tolstov <v.tolstov@selfip.ru> Signed-off-by: Hitoshi Mitake <mitake.hitoshi@lab.ntt.co.jp> Tested-by: Vasiliy Tolstov <v.tolstov@selfip.ru> Signed-off-by: Jeff Cody <jcody@redhat.com>		2015-07-28 00:16:57 -04:00
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accounting.c	block: add accounting for merged requests	2015-02-06 17:24:21 +01:00
archipelago.c	block: remove superfluous '\n' around error_report/error_setg	2015-03-10 08:15:33 +03:00
backup.c	block: keep bitmap if incremental backup job is cancelled	2015-07-14 21:50:13 -04:00
blkdebug.c	block: Move flag inheritance to bdrv_open_inherit()	2015-06-12 17:04:59 +02:00
blkverify.c	block: Move flag inheritance to bdrv_open_inherit()	2015-06-12 17:04:59 +02:00
block-backend.c	block-backend: Introduce blk_drain()	2015-06-23 15:06:16 +01:00
bochs.c	block: Use g_new() & friends to avoid multiplying sizes	2014-08-20 11:51:28 +02:00
cloop.c	cloop: Handle failure for potentially large allocations	2014-08-15 15:07:15 +02:00
commit.c	Include qapi/qmp/qerror.h exactly where needed	2015-06-22 18:20:41 +02:00
curl.c	block/curl: Don't lose original error when a connection fails.	2015-07-14 21:50:13 -04:00
dmg.c	qerror: Move #include out of qerror.h	2015-06-22 18:20:40 +02:00
gluster.c	block: don't convert file size to sector size	2014-09-12 15:43:06 +02:00
io.c	block: update bdrv_drain_all()/bdrv_drain() comments	2015-07-07 10:31:08 +01:00
iscsi.c	block/iscsi: restore compatiblity with libiscsi 1.9.0	2015-07-02 10:06:23 +01:00
linux-aio.c	linux-aio: simplify removal of completed iocbs from the list	2014-12-12 16:57:55 +00:00
Makefile.objs	block: convert quorum blockdrv to use crypto APIs	2015-07-08 13:11:01 +02:00
mirror.c	mirror: Speed up bitmap initial scanning	2015-07-22 11:14:21 +01:00
nbd-client.c	nbd: Set block size to BDRV_SECTOR_SIZE	2015-03-18 12:07:01 +01:00
nbd-client.h	nbd: Set block size to BDRV_SECTOR_SIZE	2015-03-18 12:07:01 +01:00
nbd.c	nbd: Fix nbd_establish_connection()'s return value	2015-03-18 12:05:38 +01:00
nfs.c	block/nfs: limit maximum readahead size to 1MB	2015-07-02 10:06:23 +01:00
null.c	block/null: Support reopen	2015-04-28 15:36:09 +02:00
parallels.c	block/parallels: improve image writing performance further	2015-05-22 09:37:32 +01:00
qapi.c	qerror: Finally unused, clean up	2015-06-22 18:20:40 +02:00
qcow2-cache.c	qcow2: remove unnecessary check	2015-07-07 10:31:04 +01:00
qcow2-cluster.c	block: convert qcow/qcow2 to use generic cipher API	2015-07-08 13:11:01 +02:00
qcow2-refcount.c	qcow2: Handle EAGAIN returned from update_refcount	2015-07-02 09:20:18 +01:00
qcow2-snapshot.c	qerror: Move #include out of qerror.h	2015-06-22 18:20:40 +02:00
qcow2.c	block: convert qcow/qcow2 to use generic cipher API	2015-07-08 13:11:01 +02:00
qcow2.h	block: convert qcow/qcow2 to use generic cipher API	2015-07-08 13:11:01 +02:00
qcow.c	block: convert qcow/qcow2 to use generic cipher API	2015-07-08 13:11:01 +02:00
qed-check.c	block: Use g_new() & friends to avoid multiplying sizes	2014-08-20 11:51:28 +02:00
qed-cluster.c	Use glib memory allocation and free functions	2011-08-20 23:01:08 -05:00
qed-gencb.c	block: Rename BlockDriverCompletionFunc to BlockCompletionFunc	2014-10-20 13:41:27 +02:00
qed-l2-cache.c	qed: do not evict in-use L2 table cache entries	2012-03-12 15:14:06 +01:00
qed-table.c	block: Rename BlockDriverCompletionFunc to BlockCompletionFunc	2014-10-20 13:41:27 +02:00
qed.c	qerror: Clean up QERR_ macros to expand into a single string	2015-06-22 18:20:40 +02:00
qed.h	qed: Really remove unused field QEDAIOCB.finished	2015-02-06 17:24:21 +01:00
quorum.c	block: convert quorum blockdrv to use crypto APIs	2015-07-08 13:11:01 +02:00
raw_bsd.c	block: Add driver methods to probe blocksizes and geometry	2015-03-10 14:02:22 +01:00
raw-aio.h	linux-aio: drop return code from laio_io_unplug and ioq_submit	2014-12-12 16:57:55 +00:00
raw-posix.c	block/raw-posix: Don't think /dev/fd/<NN> is a floppy drive.	2015-07-07 14:27:14 +01:00
raw-win32.c	qerror: Move #include out of qerror.h	2015-06-22 18:20:40 +02:00
rbd.c	rbd: fix ceph settings precedence	2015-07-14 17:15:23 +02:00
sheepdog.c	sheepdog: serialize requests to overwrapping area	2015-07-28 00:16:57 -04:00
snapshot.c	block: Use bdrv_drain to replace uncessary bdrv_drain_all	2015-07-07 14:27:14 +01:00
ssh.c	qerror: Move #include out of qerror.h	2015-06-22 18:20:40 +02:00
stream.c	Include qapi/qmp/qerror.h exactly where needed	2015-06-22 18:20:41 +02:00
throttle-groups.c	throttle: Check current timers before updating any_timer_armed[]	2015-06-23 15:06:16 +01:00
vdi.c	block: use bdrv_get_device_or_node_name() in error messages	2015-04-28 15:36:09 +02:00
vhdx-endian.c	block: VHDX endian fixes	2014-08-15 15:07:14 +02:00
vhdx-log.c	qerror: Move #include out of qerror.h	2015-06-22 18:20:40 +02:00
vhdx.c	block: use bdrv_get_device_or_node_name() in error messages	2015-04-28 15:36:09 +02:00
vhdx.h	block: vhdx - update PAYLOAD_BLOCK_UNMAPPED value to match 1.00 spec	2014-12-12 15:42:22 +00:00
vmdk.c	Include qapi/qmp/qerror.h exactly where needed	2015-06-22 18:20:41 +02:00
vpc.c	block: use bdrv_get_device_or_node_name() in error messages	2015-04-28 15:36:09 +02:00
vvfat.c	vvfat: add a label option	2015-06-23 15:06:17 +01:00
win32-aio.c	block: Rename BlockDriverCompletionFunc to BlockCompletionFunc	2014-10-20 13:41:27 +02:00
write-threshold.c	block: Fix block-set-write-threshold not to use funky error class	2015-03-16 17:07:25 +01:00