sheepdog: add full data preallocation support

This introduces qemu-img create option for sheepdog which allows the
data to be fully preallocated (note that sheepdog always preallocates
metadata).

The option is disabled by default and you need to enable it like the
following:

qemu-img create sheepdog:test -o preallocation=full 1G

Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
1 file changed
tree: 7286d4e266d401dc291db0a328754976a075c9ff
  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. libcacard/
  12. linux-headers/
  13. linux-user/
  14. net/
  15. pc-bios/
  16. QMP/
  17. roms/
  18. scripts/
  19. slirp/
  20. sysconfigs/
  21. target-alpha/
  22. target-arm/
  23. target-cris/
  24. target-i386/
  25. target-lm32/
  26. target-m68k/
  27. target-microblaze/
  28. target-mips/
  29. target-ppc/
  30. target-s390x/
  31. target-sh4/
  32. target-sparc/
  33. target-unicore32/
  34. tcg/
  35. tests/
  36. ui/
  37. .gitignore
  38. .gitmodules
  39. a.out.h
  40. acl.c
  41. acl.h
  42. aes.c
  43. aes.h
  44. aio.c
  45. alpha-dis.c
  46. alpha.ld
  47. arch_init.c
  48. arch_init.h
  49. arm-dis.c
  50. arm-semi.c
  51. arm.ld
  52. async.c
  53. balloon.c
  54. balloon.h
  55. bitmap.c
  56. bitmap.h
  57. bitops.c
  58. bitops.h
  59. block-migration.c
  60. block-migration.h
  61. block.c
  62. block.h
  63. block_int.h
  64. blockdev.c
  65. blockdev.h
  66. bswap.h
  67. bt-host.c
  68. bt-host.h
  69. bt-vhci.c
  70. buffered_file.c
  71. buffered_file.h
  72. cache-utils.c
  73. cache-utils.h
  74. Changelog
  75. check-qdict.c
  76. check-qfloat.c
  77. check-qint.c
  78. check-qjson.c
  79. check-qlist.c
  80. check-qstring.c
  81. cmd.c
  82. cmd.h
  83. CODING_STYLE
  84. compatfd.c
  85. compatfd.h
  86. config.h
  87. configure
  88. console.c
  89. console.h
  90. COPYING
  91. COPYING.LIB
  92. cpu-all.h
  93. cpu-common.h
  94. cpu-defs.h
  95. cpu-exec.c
  96. cpus.c
  97. cpus.h
  98. cris-dis.c
  99. cursor.c
  100. cursor_hidden.xpm
  101. cursor_left_ptr.xpm
  102. cutils.c
  103. def-helper.h
  104. device_tree.c
  105. device_tree.h
  106. dis-asm.h
  107. disas.c
  108. disas.h
  109. dma-helpers.c
  110. dma.h
  111. dyngen-exec.h
  112. elf.h
  113. envlist.c
  114. envlist.h
  115. error.c
  116. error.h
  117. error_int.h
  118. exec-all.h
  119. exec.c
  120. gdbstub.c
  121. gdbstub.h
  122. gen-icount.h
  123. HACKING
  124. hmp-commands.hx
  125. host-utils.c
  126. host-utils.h
  127. hpet.h
  128. hppa-dis.c
  129. hppa.ld
  130. i386-dis.c
  131. i386.ld
  132. ia64-dis.c
  133. ia64.ld
  134. input.c
  135. iohandler.c
  136. ioport-user.c
  137. ioport.c
  138. ioport.h
  139. iorange.h
  140. iov.c
  141. iov.h
  142. json-lexer.c
  143. json-lexer.h
  144. json-parser.c
  145. json-parser.h
  146. json-streamer.c
  147. json-streamer.h
  148. kvm-all.c
  149. kvm-stub.c
  150. kvm.h
  151. libfdt_env.h
  152. LICENSE
  153. linux-aio.c
  154. m68k-dis.c
  155. m68k-semi.c
  156. m68k.ld
  157. MAINTAINERS
  158. Makefile
  159. Makefile.dis
  160. Makefile.hw
  161. Makefile.objs
  162. Makefile.target
  163. Makefile.user
  164. microblaze-dis.c
  165. migration-exec.c
  166. migration-fd.c
  167. migration-tcp.c
  168. migration-unix.c
  169. migration.c
  170. migration.h
  171. mips-dis.c
  172. mips.ld
  173. module.c
  174. module.h
  175. monitor.c
  176. monitor.h
  177. nbd.c
  178. nbd.h
  179. net.c
  180. net.h
  181. notify.c
  182. notify.h
  183. os-posix.c
  184. os-win32.c
  185. osdep.c
  186. osdep.h
  187. oslib-posix.c
  188. oslib-win32.c
  189. path.c
  190. pci-ids.txt
  191. pflib.c
  192. pflib.h
  193. poison.h
  194. posix-aio-compat.c
  195. ppc-dis.c
  196. ppc.ld
  197. ppc64.ld
  198. qbool.c
  199. qbool.h
  200. qdict-test-data.txt
  201. qdict.c
  202. qdict.h
  203. qemu-aio.h
  204. qemu-barrier.h
  205. qemu-char.c
  206. qemu-char.h
  207. qemu-common.h
  208. qemu-config.c
  209. qemu-config.h
  210. qemu-doc.texi
  211. qemu-error.c
  212. qemu-error.h
  213. qemu-img-cmds.hx
  214. qemu-img.c
  215. qemu-img.texi
  216. qemu-io.c
  217. qemu-lock.h
  218. qemu-log.h
  219. qemu-malloc.c
  220. qemu-nbd.c
  221. qemu-nbd.texi
  222. qemu-objects.h
  223. qemu-option.c
  224. qemu-option.h
  225. qemu-options.h
  226. qemu-options.hx
  227. qemu-os-posix.h
  228. qemu-os-win32.h
  229. qemu-progress.c
  230. qemu-queue.h
  231. qemu-sockets.c
  232. qemu-tech.texi
  233. qemu-thread-posix.c
  234. qemu-thread-posix.h
  235. qemu-thread-win32.c
  236. qemu-thread-win32.h
  237. qemu-thread.h
  238. qemu-timer-common.c
  239. qemu-timer.c
  240. qemu-timer.h
  241. qemu-tool.c
  242. qemu-x509.h
  243. qemu.sasl
  244. qemu_socket.h
  245. qerror.c
  246. qerror.h
  247. qfloat.c
  248. qfloat.h
  249. qint.c
  250. qint.h
  251. qjson.c
  252. qjson.h
  253. qlist.c
  254. qlist.h
  255. qmp-commands.hx
  256. qobject.h
  257. qstring.c
  258. qstring.h
  259. range.h
  260. readline.c
  261. readline.h
  262. README
  263. rules.mak
  264. rwhandler.c
  265. rwhandler.h
  266. s390-dis.c
  267. s390.ld
  268. savevm.c
  269. sh4-dis.c
  270. simpletrace.c
  271. simpletrace.h
  272. softmmu-semi.h
  273. softmmu_defs.h
  274. softmmu_exec.h
  275. softmmu_header.h
  276. softmmu_template.h
  277. sparc-dis.c
  278. sparc.ld
  279. sparc64.ld
  280. spice-qemu-char.c
  281. sysemu.h
  282. targphys.h
  283. tcg-runtime.c
  284. thunk.c
  285. thunk.h
  286. TODO
  287. trace-events
  288. translate-all.c
  289. uboot_image.h
  290. usb-bsd.c
  291. usb-linux.c
  292. usb-stub.c
  293. user-exec.c
  294. VERSION
  295. version.rc
  296. vgafont.h
  297. vl.c
  298. x86_64.ld
  299. xen-all.c
  300. xen-mapcache-stub.c
  301. xen-mapcache.c
  302. xen-mapcache.h
  303. xen-stub.c