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qemu-android / qemu-android / 2d3735d3bf61d5c8e154a197a11535cc65044334
commit2d3735d3bf61d5c8e154a197a11535cc65044334[log] [tgz]
authorStefan Hajnoczi <stefanha@linux.vnet.ibm.com>Wed Jan 18 14:40:41 2012 +0000
committerKevin Wolf <kwolf@redhat.com>Thu Jan 26 11:45:26 2012 +0100
treec752ee53d1d7265777a3289e5cf63b00ae462244
parent7e6246670add62116729bd93811e41eb60f66b77 [diff]
block: check bdrv_in_use() before blockdev operations

Long-running block operations like block migration and image streaming
must have continual access to their block device.  It is not safe to
perform operations like hotplug, eject, change, resize, commit, or
external snapshot while a long-running operation is in progress.

This patch adds the missing bdrv_in_use() checks so that block migration
and image streaming never have the rug pulled out from underneath them.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2 files changed
tree: c752ee53d1d7265777a3289e5cf63b00ae462244
  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. qapi/
  17. qga/
  18. QMP/
  19. roms/
  20. scripts/
  21. slirp/
  22. sysconfigs/
  23. target-alpha/
  24. target-arm/
  25. target-cris/
  26. target-i386/
  27. target-lm32/
  28. target-m68k/
  29. target-microblaze/
  30. target-mips/
  31. target-ppc/
  32. target-s390x/
  33. target-sh4/
  34. target-sparc/
  35. target-unicore32/
  36. target-xtensa/
  37. tcg/
  38. tests/
  39. trace/
  40. ui/
  41. .gitignore
  42. .gitmodules
  43. .mailmap
  44. a.out.h
  45. acl.c
  46. acl.h
  47. aes.c
  48. aes.h
  49. aio.c
  50. alpha-dis.c
  51. alpha.ld
  52. arch_init.c
  53. arch_init.h
  54. arm-dis.c
  55. arm-semi.c
  56. arm.ld
  57. async.c
  58. balloon.c
  59. balloon.h
  60. bitmap.c
  61. bitmap.h
  62. bitops.c
  63. bitops.h
  64. block-migration.c
  65. block-migration.h
  66. block.c
  67. block.h
  68. block_int.h
  69. blockdev.c
  70. blockdev.h
  71. bswap.h
  72. bt-host.c
  73. bt-host.h
  74. bt-vhci.c
  75. buffered_file.c
  76. buffered_file.h
  77. cache-utils.c
  78. cache-utils.h
  79. Changelog
  80. check-qdict.c
  81. check-qfloat.c
  82. check-qint.c
  83. check-qjson.c
  84. check-qlist.c
  85. check-qstring.c
  86. cmd.c
  87. cmd.h
  88. CODING_STYLE
  89. compatfd.c
  90. compatfd.h
  91. compiler.h
  92. config.h
  93. configure
  94. console.c
  95. console.h
  96. COPYING
  97. COPYING.LIB
  98. coroutine-gthread.c
  99. coroutine-ucontext.c
  100. coroutine-win32.c
  101. cpu-all.h
  102. cpu-common.h
  103. cpu-defs.h
  104. cpu-exec.c
  105. cpus.c
  106. cpus.h
  107. cris-dis.c
  108. cursor.c
  109. cursor_hidden.xpm
  110. cursor_left_ptr.xpm
  111. cutils.c
  112. def-helper.h
  113. device_tree.c
  114. device_tree.h
  115. dis-asm.h
  116. disas.c
  117. disas.h
  118. dma-helpers.c
  119. dma.h
  120. dyngen-exec.h
  121. elf.h
  122. envlist.c
  123. envlist.h
  124. error.c
  125. error.h
  126. error_int.h
  127. event_notifier.c
  128. event_notifier.h
  129. exec-all.h
  130. exec-memory.h
  131. exec-obsolete.h
  132. exec.c
  133. gdbstub.c
  134. gdbstub.h
  135. gen-icount.h
  136. HACKING
  137. hmp-commands.hx
  138. hmp.c
  139. hmp.h
  140. host-utils.c
  141. host-utils.h
  142. hppa-dis.c
  143. hppa.ld
  144. i386-dis.c
  145. i386.ld
  146. ia64-dis.c
  147. ia64.ld
  148. input.c
  149. int128.h
  150. iohandler.c
  151. ioport-user.c
  152. ioport.c
  153. ioport.h
  154. iorange.h
  155. iov.c
  156. iov.h
  157. json-lexer.c
  158. json-lexer.h
  159. json-parser.c
  160. json-parser.h
  161. json-streamer.c
  162. json-streamer.h
  163. kvm-all.c
  164. kvm-stub.c
  165. kvm.h
  166. libfdt_env.h
  167. LICENSE
  168. linux-aio.c
  169. m68k-dis.c
  170. m68k-semi.c
  171. m68k.ld
  172. main-loop.c
  173. main-loop.h
  174. MAINTAINERS
  175. Makefile
  176. Makefile.dis
  177. Makefile.hw
  178. Makefile.objs
  179. Makefile.target
  180. Makefile.user
  181. memory.c
  182. memory.h
  183. microblaze-dis.c
  184. migration-exec.c
  185. migration-fd.c
  186. migration-tcp.c
  187. migration-unix.c
  188. migration.c
  189. migration.h
  190. mips-dis.c
  191. mips.ld
  192. module.c
  193. module.h
  194. monitor.c
  195. monitor.h
  196. nbd.c
  197. nbd.h
  198. net.c
  199. net.h
  200. notify.c
  201. notify.h
  202. os-posix.c
  203. os-win32.c
  204. osdep.c
  205. osdep.h
  206. oslib-posix.c
  207. oslib-win32.c
  208. path.c
  209. pci-ids.txt
  210. pflib.c
  211. pflib.h
  212. poison.h
  213. posix-aio-compat.c
  214. ppc-dis.c
  215. ppc.ld
  216. ppc64.ld
  217. qapi-schema-guest.json
  218. qapi-schema-test.json
  219. qapi-schema.json
  220. qbool.c
  221. qbool.h
  222. qdict-test-data.txt
  223. qdict.c
  224. qdict.h
  225. qemu-aio.h
  226. qemu-barrier.h
  227. qemu-char.c
  228. qemu-char.h
  229. qemu-common.h
  230. qemu-config.c
  231. qemu-config.h
  232. qemu-coroutine-int.h
  233. qemu-coroutine-io.c
  234. qemu-coroutine-lock.c
  235. qemu-coroutine-sleep.c
  236. qemu-coroutine.c
  237. qemu-coroutine.h
  238. qemu-doc.texi
  239. qemu-error.c
  240. qemu-error.h
  241. qemu-file.h
  242. qemu-ga.c
  243. qemu-img-cmds.hx
  244. qemu-img.c
  245. qemu-img.texi
  246. qemu-io.c
  247. qemu-lock.h
  248. qemu-log.h
  249. qemu-nbd.c
  250. qemu-nbd.texi
  251. qemu-objects.h
  252. qemu-option.c
  253. qemu-option.h
  254. qemu-options-wrapper.h
  255. qemu-options.h
  256. qemu-options.hx
  257. qemu-os-posix.h
  258. qemu-os-win32.h
  259. qemu-progress.c
  260. qemu-queue.h
  261. qemu-sockets.c
  262. qemu-tech.texi
  263. qemu-thread-posix.c
  264. qemu-thread-posix.h
  265. qemu-thread-win32.c
  266. qemu-thread-win32.h
  267. qemu-thread.h
  268. qemu-timer-common.c
  269. qemu-timer.c
  270. qemu-timer.h
  271. qemu-tls.h
  272. qemu-tool.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. range.h
  293. readline.c
  294. readline.h
  295. README
  296. rules.mak
  297. s390-dis.c
  298. s390.ld
  299. savevm.c
  300. sh4-dis.c
  301. softmmu-semi.h
  302. softmmu_defs.h
  303. softmmu_exec.h
  304. softmmu_header.h
  305. softmmu_template.h
  306. sparc-dis.c
  307. sparc.ld
  308. sparc64.ld
  309. spice-qemu-char.c
  310. sysemu.h
  311. targphys.h
  312. tcg-runtime.c
  313. tci-dis.c
  314. tci.c
  315. test-coroutine.c
  316. test-qmp-commands.c
  317. test-qmp-input-visitor.c
  318. test-qmp-output-visitor.c
  319. thunk.c
  320. thunk.h
  321. TODO
  322. trace-events
  323. translate-all.c
  324. uboot_image.h
  325. usb-bsd.c
  326. usb-linux.c
  327. usb-redir.c
  328. usb-stub.c
  329. user-exec.c
  330. VERSION
  331. version.rc
  332. vgafont.h
  333. vl.c
  334. vmstate.h
  335. x86_64.ld
  336. xen-all.c
  337. xen-mapcache.c
  338. xen-mapcache.h
  339. xen-stub.c
  340. xtensa-semi.c