block: use Error mechanism instead of -errno for block_job_create()

The block job API uses -errno return values internally and we convert
these to Error in the QMP functions.  This is ugly because the Error
should be created at the point where we still have all the relevant
information.  More importantly, it is hard to add new error cases to
this case since we quickly run out of -errno values without losing
information.

Go ahead and use Error directly and don't convert later.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
4 files changed
tree: 14676280cfffb57a80fe9bfd1058fbbb87ba9050
  1. audio/
  2. block/
  3. bsd-user/
  4. darwin-user/
  5. default-configs/
  6. docs/
  7. fpu/
  8. fsdev/
  9. gdb-xml/
  10. hw/
  11. include/
  12. libcacard/
  13. linux-headers/
  14. linux-user/
  15. net/
  16. pc-bios/
  17. qapi/
  18. qga/
  19. QMP/
  20. qom/
  21. roms/
  22. scripts/
  23. slirp/
  24. sysconfigs/
  25. target-alpha/
  26. target-arm/
  27. target-cris/
  28. target-i386/
  29. target-lm32/
  30. target-m68k/
  31. target-microblaze/
  32. target-mips/
  33. target-ppc/
  34. target-s390x/
  35. target-sh4/
  36. target-sparc/
  37. target-unicore32/
  38. target-xtensa/
  39. tcg/
  40. tests/
  41. trace/
  42. ui/
  43. .gitignore
  44. .gitmodules
  45. .mailmap
  46. a.out.h
  47. acl.c
  48. acl.h
  49. aes.c
  50. aes.h
  51. aio.c
  52. alpha-dis.c
  53. alpha.ld
  54. arch_init.c
  55. arch_init.h
  56. arm-dis.c
  57. arm-semi.c
  58. arm.ld
  59. async.c
  60. balloon.c
  61. balloon.h
  62. bitmap.c
  63. bitmap.h
  64. bitops.c
  65. bitops.h
  66. block-migration.c
  67. block-migration.h
  68. block.c
  69. block.h
  70. block_int.h
  71. blockdev.c
  72. blockdev.h
  73. bswap.h
  74. bt-host.c
  75. bt-host.h
  76. bt-vhci.c
  77. buffered_file.c
  78. buffered_file.h
  79. cache-utils.c
  80. cache-utils.h
  81. Changelog
  82. cmd.c
  83. cmd.h
  84. CODING_STYLE
  85. compatfd.c
  86. compatfd.h
  87. compiler.h
  88. config.h
  89. configure
  90. console.c
  91. console.h
  92. COPYING
  93. COPYING.LIB
  94. coroutine-gthread.c
  95. coroutine-sigaltstack.c
  96. coroutine-ucontext.c
  97. coroutine-win32.c
  98. cpu-all.h
  99. cpu-common.h
  100. cpu-defs.h
  101. cpu-exec.c
  102. cpus.c
  103. cpus.h
  104. cris-dis.c
  105. cursor.c
  106. cursor_hidden.xpm
  107. cursor_left_ptr.xpm
  108. cutils.c
  109. def-helper.h
  110. device_tree.c
  111. device_tree.h
  112. dis-asm.h
  113. disas.c
  114. disas.h
  115. dma-helpers.c
  116. dma.h
  117. dyngen-exec.h
  118. elf.h
  119. envlist.c
  120. envlist.h
  121. error.c
  122. error.h
  123. error_int.h
  124. event_notifier.c
  125. event_notifier.h
  126. exec-all.h
  127. exec-memory.h
  128. exec-obsolete.h
  129. exec.c
  130. gdbstub.c
  131. gdbstub.h
  132. gen-icount.h
  133. HACKING
  134. hmp-commands.hx
  135. hmp.c
  136. hmp.h
  137. host-utils.c
  138. host-utils.h
  139. hppa-dis.c
  140. hppa.ld
  141. i386-dis.c
  142. i386.ld
  143. ia64-dis.c
  144. ia64.ld
  145. input.c
  146. int128.h
  147. iohandler.c
  148. ioport-user.c
  149. ioport.c
  150. ioport.h
  151. iorange.h
  152. iov.c
  153. iov.h
  154. json-lexer.c
  155. json-lexer.h
  156. json-parser.c
  157. json-parser.h
  158. json-streamer.c
  159. json-streamer.h
  160. kvm-all.c
  161. kvm-stub.c
  162. kvm.h
  163. libfdt_env.h
  164. LICENSE
  165. linux-aio.c
  166. lm32-dis.c
  167. m68k-dis.c
  168. m68k-semi.c
  169. m68k.ld
  170. main-loop.c
  171. main-loop.h
  172. MAINTAINERS
  173. Makefile
  174. Makefile.dis
  175. Makefile.hw
  176. Makefile.objs
  177. Makefile.target
  178. Makefile.user
  179. memory.c
  180. memory.h
  181. microblaze-dis.c
  182. migration-exec.c
  183. migration-fd.c
  184. migration-tcp.c
  185. migration-unix.c
  186. migration.c
  187. migration.h
  188. mips-dis.c
  189. mips.ld
  190. module.c
  191. module.h
  192. monitor.c
  193. monitor.h
  194. nbd.c
  195. nbd.h
  196. net.c
  197. net.h
  198. notify.c
  199. notify.h
  200. os-posix.c
  201. os-win32.c
  202. osdep.c
  203. osdep.h
  204. oslib-posix.c
  205. oslib-win32.c
  206. path.c
  207. pci-ids.txt
  208. pflib.c
  209. pflib.h
  210. poison.h
  211. posix-aio-compat.c
  212. ppc-dis.c
  213. ppc.ld
  214. ppc64.ld
  215. qapi-schema-guest.json
  216. qapi-schema-test.json
  217. qapi-schema.json
  218. qbool.c
  219. qbool.h
  220. qdict-test-data.txt
  221. qdict.c
  222. qdict.h
  223. qemu-aio.h
  224. qemu-barrier.h
  225. qemu-bridge-helper.c
  226. qemu-char.c
  227. qemu-char.h
  228. qemu-common.h
  229. qemu-config.c
  230. qemu-config.h
  231. qemu-coroutine-int.h
  232. qemu-coroutine-io.c
  233. qemu-coroutine-lock.c
  234. qemu-coroutine-sleep.c
  235. qemu-coroutine.c
  236. qemu-coroutine.h
  237. qemu-doc.texi
  238. qemu-error.c
  239. qemu-error.h
  240. qemu-file.h
  241. qemu-ga.c
  242. qemu-img-cmds.hx
  243. qemu-img.c
  244. qemu-img.texi
  245. qemu-io.c
  246. qemu-lock.h
  247. qemu-log.h
  248. qemu-nbd.c
  249. qemu-nbd.texi
  250. qemu-objects.h
  251. qemu-option.c
  252. qemu-option.h
  253. qemu-options-wrapper.h
  254. qemu-options.h
  255. qemu-options.hx
  256. qemu-os-posix.h
  257. qemu-os-win32.h
  258. qemu-progress.c
  259. qemu-queue.h
  260. qemu-sockets.c
  261. qemu-tech.texi
  262. qemu-thread-posix.c
  263. qemu-thread-posix.h
  264. qemu-thread-win32.c
  265. qemu-thread-win32.h
  266. qemu-thread.h
  267. qemu-timer-common.c
  268. qemu-timer.c
  269. qemu-timer.h
  270. qemu-tls.h
  271. qemu-tool.c
  272. qemu-user.c
  273. qemu-x509.h
  274. qemu-xattr.h
  275. qemu.sasl
  276. qemu_socket.h
  277. qerror.c
  278. qerror.h
  279. qfloat.c
  280. qfloat.h
  281. qint.c
  282. qint.h
  283. qjson.c
  284. qjson.h
  285. qlist.c
  286. qlist.h
  287. qmp-commands.hx
  288. qmp.c
  289. qobject.h
  290. qstring.c
  291. qstring.h
  292. qtest.c
  293. qtest.h
  294. range.h
  295. readline.c
  296. readline.h
  297. README
  298. rules.mak
  299. s390-dis.c
  300. s390.ld
  301. savevm.c
  302. sh4-dis.c
  303. softmmu-semi.h
  304. softmmu_defs.h
  305. softmmu_exec.h
  306. softmmu_header.h
  307. softmmu_template.h
  308. sparc-dis.c
  309. sparc.ld
  310. sparc64.ld
  311. spice-qemu-char.c
  312. sysemu.h
  313. targphys.h
  314. tcg-runtime.c
  315. tci-dis.c
  316. tci.c
  317. thunk.c
  318. thunk.h
  319. TODO
  320. trace-events
  321. translate-all.c
  322. uboot_image.h
  323. user-exec.c
  324. VERSION
  325. version.rc
  326. vgafont.h
  327. vl.c
  328. vmstate.h
  329. x86_64.ld
  330. xen-all.c
  331. xen-mapcache.c
  332. xen-mapcache.h
  333. xen-stub.c
  334. xtensa-semi.c