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Kevin Wolf 1266c9b9f5 job: Add error message for failing jobs 
So far we relied on job->ret and strerror() to produce an error message
for failed jobs. Not surprisingly, this tends to result in completely
useless messages.

This adds a Job.error field that can contain an error string for a
failing job, and a parameter to job_completed() that sets the field. As
a default, if NULL is passed, we continue to use strerror(job->ret).

All existing callers are changed to pass NULL. They can be improved in
separate patches.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
 		2018-05-30 13:31:01 +02:00
..
Makefile.objs block: Add COR filter driver 2018-05-15 16:15:21 +02:00
accounting.c block/accounting: introduce latency histogram 2018-03-19 14:58:37 -05:00
backup.c job: Add error message for failing jobs 2018-05-30 13:31:01 +02:00
blkdebug.c block: Support BDRV_REQ_WRITE_UNCHANGED in filters 2018-05-15 16:15:21 +02:00
blkreplay.c block: Support BDRV_REQ_WRITE_UNCHANGED in filters 2018-05-15 16:15:21 +02:00
blkverify.c block: Support BDRV_REQ_WRITE_UNCHANGED in filters 2018-05-15 16:15:21 +02:00
block-backend.c block-backend: simplify blk_get_aio_context 2018-05-15 16:11:41 +02:00
bochs.c block: Deprecate bdrv_set_read_only() and users 2017-11-17 13:35:59 +01:00
cloop.c block: Deprecate bdrv_set_read_only() and users 2017-11-17 13:35:59 +01:00
commit.c job: Add error message for failing jobs 2018-05-30 13:31:01 +02:00
copy-on-read.c block: Support BDRV_REQ_WRITE_UNCHANGED in filters 2018-05-15 16:15:21 +02:00
create.c block: x-blockdev-create QMP command 2018-03-09 15:17:47 +01:00
crypto.c qobject: Replace qobject_incref/QINCREF qobject_decref/QDECREF 2018-05-04 08:27:53 +02:00
crypto.h qcow: convert QCow to use QCryptoBlock for encryption 2017-07-11 17:44:56 +02:00
curl.c Move include qemu/option.h from qemu-common.h to actual users 2018-02-09 13:52:16 +01:00
dirty-bitmap.c dirty-bitmap: add locked state 2018-03-13 17:05:00 -04:00
dmg-bz2.c dmg: Move libbz2 code to dmg-bz2.so 2016-10-07 14:14:06 +02:00
dmg.c block: Deprecate bdrv_set_read_only() and users 2017-11-17 13:35:59 +01:00
dmg.h block: remove "qemu/osdep.h" from header file 2017-12-18 17:07:02 +03:00
file-posix.c block/file-posix: add x-check-page-cache=on|off option 2018-05-11 16:43:05 +01:00
file-win32.c file-win32: Switch to byte-based callbacks 2018-05-15 16:11:41 +02:00
gluster.c block: Merge .bdrv_co_writev{,_flags} in drivers 2018-05-15 16:11:41 +02:00
io.c block: Set BDRV_REQ_WRITE_UNCHANGED for COR writes 2018-05-15 16:15:21 +02:00
iscsi-opts.c Move include qemu/option.h from qemu-common.h to actual users 2018-02-09 13:52:16 +01:00
iscsi.c block: Merge .bdrv_co_writev{,_flags} in drivers 2018-05-15 16:11:41 +02:00
linux-aio.c block: explicitly acquire aiocontext in aio callbacks that need it 2017-02-21 11:39:39 +00:00
mirror.c job: Add error message for failing jobs 2018-05-30 13:31:01 +02:00
nbd-client.c nbd/client: Relax handling of large NBD_CMD_BLOCK_STATUS reply 2018-05-04 08:23:39 -05:00
nbd-client.h nbd: BLOCK_STATUS for standard get_block_status function: client part 2018-03-13 15:43:48 -05:00
nbd.c qobject: Replace qobject_incref/QINCREF qobject_decref/QDECREF 2018-05-04 08:27:53 +02:00
nfs.c nfs: Remove processed options from QDict 2018-05-16 13:37:47 -04:00
null.c null: Switch to byte-based read/write 2018-05-15 16:11:41 +02:00
nvme.c qobject: Modify qobject_ref() to return obj 2018-05-04 08:27:53 +02:00
parallels.c block: Merge .bdrv_co_writev{,_flags} in drivers 2018-05-15 16:11:41 +02:00
parallels.h Clean up includes 2018-02-09 05:05:11 +01:00
qapi.c qobject: Replace qobject_incref/QINCREF qobject_decref/QDECREF 2018-05-04 08:27:53 +02:00
qcow.c block: Merge .bdrv_co_writev{,_flags} in drivers 2018-05-15 16:11:41 +02:00
qcow2-bitmap.c qcow2-bitmap: add qcow2_reopen_bitmaps_rw_hint() 2018-03-26 21:17:24 +02:00
qcow2-cache.c qcow2: Allow configuring the L2 slice size 2018-02-13 17:00:00 +01:00
qcow2-cluster.c qcow2: Check L1 table parameters in qcow2_expand_zero_clusters() 2018-03-09 15:17:47 +01:00
qcow2-refcount.c Fix error message about compressed clusters with OFLAG_COPIED 2018-05-15 16:15:21 +02:00
qcow2-snapshot.c qcow2: Check snapshot L1 table in qcow2_snapshot_delete() 2018-03-09 15:17:47 +01:00
qcow2.c qcow2: Fix Coverity warning when calculating the refcount cache size 2018-05-29 20:09:17 +02:00
qcow2.h qcow2: Give the refcount cache the minimum possible size by default 2018-05-15 16:15:21 +02:00
qed-check.c block: convert bdrv_check callback to coroutine_fn 2018-03-09 15:17:47 +01:00
qed-cluster.c qed: protect table cache with CoMutex 2017-07-17 11:34:11 +08:00
qed-l2-cache.c qed: protect table cache with CoMutex 2017-07-17 11:34:11 +08:00
qed-table.c block: convert bdrv_check callback to coroutine_fn 2018-03-09 15:17:47 +01:00
qed.c block: Merge .bdrv_co_writev{,_flags} in drivers 2018-05-15 16:11:41 +02:00
qed.h qed: protect table cache with CoMutex 2017-07-17 11:34:11 +08:00
quorum.c Remove unnecessary variables for function return value 2018-05-20 08:48:13 +03:00
raw-format.c block: Support BDRV_REQ_WRITE_UNCHANGED in filters 2018-05-15 16:15:21 +02:00
rbd.c rbd: Switch to byte-based callbacks 2018-05-15 16:11:41 +02:00
replication.c job: Move completion and cancellation to Job 2018-05-23 14:30:51 +02:00
sheepdog.c sheepdog: Remove unnecessary NULL check in sd_prealloc() 2018-05-23 13:29:06 +02:00
snapshot.c qobject: Replace qobject_incref/QINCREF qobject_decref/QDECREF 2018-05-04 08:27:53 +02:00
ssh.c block: Merge .bdrv_co_writev{,_flags} in drivers 2018-05-15 16:11:41 +02:00
stream.c job: Add error message for failing jobs 2018-05-30 13:31:01 +02:00
throttle-groups.c Include less of the generated modular QAPI headers 2018-03-02 13:45:50 -06:00
throttle.c block: Support BDRV_REQ_WRITE_UNCHANGED in filters 2018-05-15 16:15:21 +02:00
trace-events job: Move completion and cancellation to Job 2018-05-23 14:30:51 +02:00
vdi.c vdi: Fix vdi_co_do_create() return value 2018-05-29 22:19:57 +02:00
vhdx-endian.c vhdx: Use QEMU UUID API 2016-09-23 11:42:52 +08:00
vhdx-log.c vhdx: use QEMU_ALIGN_DOWN 2017-08-31 12:29:07 +02:00
vhdx.c vhdx: Fix vhdx_co_create() return value 2018-05-29 22:19:57 +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: return ERROR when cluster sector is larger than vmdk limitation 2018-03-26 21:17:24 +02:00
vpc.c qobject: Replace qobject_incref/QINCREF qobject_decref/QDECREF 2018-05-04 08:27:53 +02:00
vvfat.c qobject: Replace qobject_incref/QINCREF qobject_decref/QDECREF 2018-05-04 08:27:53 +02:00
vxhs.c vxhs: Switch to byte-based callbacks 2018-05-15 16:11:41 +02:00
win32-aio.c file-win32: Switch to byte-based callbacks 2018-05-15 16:11:41 +02:00
write-threshold.c Include less of the generated modular QAPI headers 2018-03-02 13:45:50 -06:00