qemu/block
Hitoshi Mitake e6fd57ea29 sheepdog: refine discard support
This patch refines discard support of the sheepdog driver. The
existing discard mechanism was implemented on SD_OP_DISCARD_OBJ, which
was introduced before fine grained reference counting on newer
sheepdog. It doesn't care about relations of snapshots and clones and
discards objects unconditionally.

With this patch, the driver just updates an inode object for updating
reference. Removing the object is done in sheep process side.

Cc: Teruaki Ishizaki <ishizaki.teruaki@lab.ntt.co.jp>
Cc: Vasiliy Tolstov <v.tolstov@selfip.ru>
Cc: Jeff Cody <jcody@redhat.com>
Signed-off-by: Hitoshi Mitake <mitake.hitoshi@lab.ntt.co.jp>
Tested-by: Vasiliy Tolstov <v.tolstov@selfip.ru>
Message-id: 1441076590-8015-3-git-send-email-mitake.hitoshi@lab.ntt.co.jp
Signed-off-by: Jeff Cody <jcody@redhat.com>
2015-09-25 10:25:19 -04:00
..
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 Backup: don't do copy-on-read in before_write_notifier 2015-09-25 08:37:07 -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: Drop drv parameter from bdrv_open() 2015-09-14 16:51:36 +02:00
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 block: Allow specifying driver-specific options to reopen 2015-09-14 16:51:36 +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: Introduce a new API bdrv_co_no_copy_on_readv() 2015-09-25 08:37:07 -04:00
iscsi.c block/iscsi: validate block size returned from target 2015-09-07 18:14:03 +02:00
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 block: more check for replaced node 2015-09-02 14:56:39 +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: cache allocated filesize for read-only files 2015-09-25 08:37:07 -04:00
null.c block/null: Support reopen 2015-04-28 15:36:09 +02:00
parallels.c block: Drop drv parameter from bdrv_open() 2015-09-14 16:51:36 +02:00
qapi.c qerror: Finally unused, clean up 2015-06-22 18:20:40 +02:00
qcow2-cache.c qcow2: Rename BDRVQcowState to BDRVQcow2State 2015-09-14 16:51:36 +02:00
qcow2-cluster.c qcow2: Make size_to_clusters() return uint64_t 2015-09-14 16:51:37 +02:00
qcow2-refcount.c qcow2: Make qcow2_alloc_bytes() more explicit 2015-09-14 16:51:37 +02:00
qcow2-snapshot.c qcow2: Rename BDRVQcowState to BDRVQcow2State 2015-09-14 16:51:36 +02:00
qcow2.c qcow2: Support updating driver-specific options in reopen 2015-09-14 16:51:37 +02:00
qcow2.h qcow2: Make size_to_clusters() return uint64_t 2015-09-14 16:51:37 +02:00
qcow.c block: Drop drv parameter from bdrv_open() 2015-09-14 16:51:36 +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 block: Drop drv parameter from bdrv_open() 2015-09-14 16:51:36 +02:00
qed.h qed: Really remove unused field QEDAIOCB.finished 2015-02-06 17:24:21 +01:00
quorum.c quorum: validate vote threshold against num_children even if read-pattern is fifo 2015-09-04 21:00:32 +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: Use raw_normalize_devicepath() 2015-09-04 20:59:48 +02:00
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: refine discard support 2015-09-25 10:25:19 -04:00
snapshot.c block: Use bdrv_drain to replace uncessary bdrv_drain_all 2015-07-07 14:27:14 +01:00
ssh.c block/ssh: Avoid segfault if inet_connect doesn't set errno. 2015-07-28 00:19:05 -04:00
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: Drop drv parameter from bdrv_open() 2015-09-14 16:51:36 +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: Drop drv parameter from bdrv_open() 2015-09-14 16:51:36 +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 vmdk: Fix next_cluster_sector for compressed write 2015-09-14 16:51:37 +02:00
vpc.c block: Drop drv parameter from bdrv_open() 2015-09-14 16:51:36 +02:00
vvfat.c block: Drop drv parameter from bdrv_open() 2015-09-14 16:51:36 +02:00
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