Google Git
Sign in
qemu / qemu / aab2293687ee54a409f3fb53a1ab3595b595e0fb
commitaab2293687ee54a409f3fb53a1ab3595b595e0fb[log] [tgz]
authorGerd Hoffmann <kraxel@redhat.com>Thu Oct 27 09:12:04 2011 +0200
committerAnthony Liguori <aliguori@us.ibm.com>Tue Nov 01 11:50:21 2011 -0500
tree32e34e0b63e52682db4d7e5b7d44b17ad1fa0179
parent695833bc8bbb9f1dbb0d7736cbe927863e1b40cd [diff]
migration: flush migration data to disk.

This patch increases robustness when migrating to a file with
two little changes:

 (1) Before closing the migration file handle checks if it happens to be
     a regular file and if so it issues a fsync.  This way the data is
     flushed to disk before qemu sends the migration completed event.
 (2) It adds error checking.  In case either fsync or close syscall
     fails pass up the error (and fail migration).

[ v2: return -errno instead of -1 ]

Cc: Juan Quintela <quintela@redhat.com>
Cc: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
1 file changed
tree: 32e34e0b63e52682db4d7e5b7d44b17ad1fa0179
  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. a.out.h
  44. acl.c
  45. acl.h
  46. aes.c
  47. aes.h
  48. aio.c
  49. alpha-dis.c
  50. alpha.ld
  51. arch_init.c
  52. arch_init.h
  53. arm-dis.c
  54. arm-semi.c
  55. arm.ld
  56. async.c
  57. balloon.c
  58. balloon.h
  59. bitmap.c
  60. bitmap.h
  61. bitops.c
  62. bitops.h
  63. block-migration.c
  64. block-migration.h
  65. block.c
  66. block.h
  67. block_int.h
  68. blockdev.c
  69. blockdev.h
  70. bswap.h
  71. bt-host.c
  72. bt-host.h
  73. bt-vhci.c
  74. buffered_file.c
  75. buffered_file.h
  76. cache-utils.c
  77. cache-utils.h
  78. Changelog
  79. check-qdict.c
  80. check-qfloat.c
  81. check-qint.c
  82. check-qjson.c
  83. check-qlist.c
  84. check-qstring.c
  85. cmd.c
  86. cmd.h
  87. CODING_STYLE
  88. compatfd.c
  89. compatfd.h
  90. compiler.h
  91. config.h
  92. configure
  93. console.c
  94. console.h
  95. COPYING
  96. COPYING.LIB
  97. coroutine-gthread.c
  98. coroutine-ucontext.c
  99. coroutine-win32.c
  100. cpu-all.h
  101. cpu-common.h
  102. cpu-defs.h
  103. cpu-exec.c
  104. cpus.c
  105. cpus.h
  106. cris-dis.c
  107. cursor.c
  108. cursor_hidden.xpm
  109. cursor_left_ptr.xpm
  110. cutils.c
  111. def-helper.h
  112. device_tree.c
  113. device_tree.h
  114. dis-asm.h
  115. disas.c
  116. disas.h
  117. dma-helpers.c
  118. dma.h
  119. dyngen-exec.h
  120. elf.h
  121. envlist.c
  122. envlist.h
  123. error.c
  124. error.h
  125. error_int.h
  126. exec-all.h
  127. exec-memory.h
  128. exec.c
  129. gdbstub.c
  130. gdbstub.h
  131. gen-icount.h
  132. HACKING
  133. hmp-commands.hx
  134. hmp.c
  135. hmp.h
  136. host-utils.c
  137. host-utils.h
  138. hppa-dis.c
  139. hppa.ld
  140. i386-dis.c
  141. i386.ld
  142. ia64-dis.c
  143. ia64.ld
  144. input.c
  145. iohandler.c
  146. ioport-user.c
  147. ioport.c
  148. ioport.h
  149. iorange.h
  150. iov.c
  151. iov.h
  152. json-lexer.c
  153. json-lexer.h
  154. json-parser.c
  155. json-parser.h
  156. json-streamer.c
  157. json-streamer.h
  158. kvm-all.c
  159. kvm-stub.c
  160. kvm.h
  161. libfdt_env.h
  162. LICENSE
  163. linux-aio.c
  164. m68k-dis.c
  165. m68k-semi.c
  166. m68k.ld
  167. main-loop.c
  168. main-loop.h
  169. MAINTAINERS
  170. Makefile
  171. Makefile.dis
  172. Makefile.hw
  173. Makefile.objs
  174. Makefile.target
  175. Makefile.user
  176. memory.c
  177. memory.h
  178. microblaze-dis.c
  179. migration-exec.c
  180. migration-fd.c
  181. migration-tcp.c
  182. migration-unix.c
  183. migration.c
  184. migration.h
  185. mips-dis.c
  186. mips.ld
  187. module.c
  188. module.h
  189. monitor.c
  190. monitor.h
  191. nbd.c
  192. nbd.h
  193. net.c
  194. net.h
  195. notify.c
  196. notify.h
  197. os-posix.c
  198. os-win32.c
  199. osdep.c
  200. osdep.h
  201. oslib-posix.c
  202. oslib-win32.c
  203. path.c
  204. pci-ids.txt
  205. pflib.c
  206. pflib.h
  207. poison.h
  208. posix-aio-compat.c
  209. ppc-dis.c
  210. ppc.ld
  211. ppc64.ld
  212. qapi-schema-guest.json
  213. qapi-schema-test.json
  214. qapi-schema.json
  215. qbool.c
  216. qbool.h
  217. qdict-test-data.txt
  218. qdict.c
  219. qdict.h
  220. qemu-aio.h
  221. qemu-barrier.h
  222. qemu-char.c
  223. qemu-char.h
  224. qemu-common.h
  225. qemu-config.c
  226. qemu-config.h
  227. qemu-coroutine-int.h
  228. qemu-coroutine-lock.c
  229. qemu-coroutine.c
  230. qemu-coroutine.h
  231. qemu-doc.texi
  232. qemu-error.c
  233. qemu-error.h
  234. qemu-ga.c
  235. qemu-img-cmds.hx
  236. qemu-img.c
  237. qemu-img.texi
  238. qemu-io.c
  239. qemu-lock.h
  240. qemu-log.h
  241. qemu-nbd.c
  242. qemu-nbd.texi
  243. qemu-objects.h
  244. qemu-option.c
  245. qemu-option.h
  246. qemu-options.h
  247. qemu-options.hx
  248. qemu-os-posix.h
  249. qemu-os-win32.h
  250. qemu-progress.c
  251. qemu-queue.h
  252. qemu-sockets.c
  253. qemu-tech.texi
  254. qemu-thread-posix.c
  255. qemu-thread-posix.h
  256. qemu-thread-win32.c
  257. qemu-thread-win32.h
  258. qemu-thread.h
  259. qemu-timer-common.c
  260. qemu-timer.c
  261. qemu-timer.h
  262. qemu-tls.h
  263. qemu-tool.c
  264. qemu-x509.h
  265. qemu.sasl
  266. qemu_socket.h
  267. qerror.c
  268. qerror.h
  269. qfloat.c
  270. qfloat.h
  271. qint.c
  272. qint.h
  273. qjson.c
  274. qjson.h
  275. qlist.c
  276. qlist.h
  277. qmp-commands.hx
  278. qmp.c
  279. qobject.h
  280. qstring.c
  281. qstring.h
  282. range.h
  283. readline.c
  284. readline.h
  285. README
  286. rules.mak
  287. s390-dis.c
  288. s390.ld
  289. savevm.c
  290. sh4-dis.c
  291. softmmu-semi.h
  292. softmmu_defs.h
  293. softmmu_exec.h
  294. softmmu_header.h
  295. softmmu_template.h
  296. sparc-dis.c
  297. sparc.ld
  298. sparc64.ld
  299. spice-qemu-char.c
  300. sysemu.h
  301. targphys.h
  302. tcg-runtime.c
  303. test-coroutine.c
  304. test-qmp-commands.c
  305. test-visitor.c
  306. thunk.c
  307. thunk.h
  308. TODO
  309. trace-events
  310. translate-all.c
  311. uboot_image.h
  312. usb-bsd.c
  313. usb-linux.c
  314. usb-redir.c
  315. usb-stub.c
  316. user-exec.c
  317. VERSION
  318. version.rc
  319. vgafont.h
  320. vl.c
  321. x86_64.ld
  322. xen-all.c
  323. xen-mapcache.c
  324. xen-mapcache.h
  325. xen-stub.c
  326. xtensa-semi.c