blockdev: acquire AioContext in blockdev_mark_auto_del()

When an emulated storage controller is unrealized it will call
blockdev_mark_auto_del().  This will cancel any running block job (and
that eventually releases its reference to the BDS so it can be freed).

Since the block job may be executing in another AioContext we must
acquire/release to ensure thread safety.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 1413889440-32577-4-git-send-email-stefanha@redhat.com
1 file changed
tree: a73cea9d59df57c54d5fd73a6287c7b1e187dd4c
  1. audio/
  2. backends/
  3. block/
  4. bsd-user/
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  6. disas/
  7. docs/
  8. fpu/
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  11. hw/
  12. include/
  13. libcacard/
  14. libdecnumber/
  15. linux-headers/
  16. linux-user/
  17. net/
  18. pc-bios/
  19. po/
  20. qapi/
  21. qga/
  22. qobject/
  23. qom/
  24. roms/
  25. scripts/
  26. slirp/
  27. stubs/
  28. sysconfigs/
  29. target-alpha/
  30. target-arm/
  31. target-cris/
  32. target-i386/
  33. target-lm32/
  34. target-m68k/
  35. target-microblaze/
  36. target-mips/
  37. target-moxie/
  38. target-openrisc/
  39. target-ppc/
  40. target-s390x/
  41. target-sh4/
  42. target-sparc/
  43. target-tricore/
  44. target-unicore32/
  45. target-xtensa/
  46. tcg/
  47. tests/
  48. trace/
  49. ui/
  50. util/
  51. .exrc
  52. .gitignore
  53. .gitmodules
  54. .mailmap
  55. .travis.yml
  56. accel.c
  57. aio-posix.c
  58. aio-win32.c
  59. arch_init.c
  60. async.c
  61. balloon.c
  62. block-migration.c
  63. block.c
  64. blockdev-nbd.c
  65. blockdev.c
  66. blockjob.c
  67. bootdevice.c
  68. bt-host.c
  69. bt-vhci.c
  70. Changelog
  71. CODING_STYLE
  72. configure
  73. COPYING
  74. COPYING.LIB
  75. coroutine-gthread.c
  76. coroutine-sigaltstack.c
  77. coroutine-ucontext.c
  78. coroutine-win32.c
  79. cpu-exec.c
  80. cpus.c
  81. cputlb.c
  82. device-hotplug.c
  83. device_tree.c
  84. disas.c
  85. dma-helpers.c
  86. dump.c
  87. exec.c
  88. gdbstub.c
  89. HACKING
  90. hmp-commands.hx
  91. hmp.c
  92. hmp.h
  93. iohandler.c
  94. ioport.c
  95. iothread.c
  96. kvm-all.c
  97. kvm-stub.c
  98. LICENSE
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  103. Makefile.target
  104. memory.c
  105. memory_mapping.c
  106. migration-exec.c
  107. migration-fd.c
  108. migration-rdma.c
  109. migration-tcp.c
  110. migration-unix.c
  111. migration.c
  112. module-common.c
  113. monitor.c
  114. nbd.c
  115. numa.c
  116. os-posix.c
  117. os-win32.c
  118. page_cache.c
  119. qapi-schema.json
  120. qdev-monitor.c
  121. qdict-test-data.txt
  122. qemu-bridge-helper.c
  123. qemu-char.c
  124. qemu-coroutine-io.c
  125. qemu-coroutine-lock.c
  126. qemu-coroutine-sleep.c
  127. qemu-coroutine.c
  128. qemu-doc.texi
  129. qemu-file-stdio.c
  130. qemu-file-unix.c
  131. qemu-file.c
  132. qemu-img-cmds.hx
  133. qemu-img.c
  134. qemu-img.texi
  135. qemu-io-cmds.c
  136. qemu-io.c
  137. qemu-log.c
  138. qemu-nbd.c
  139. qemu-nbd.texi
  140. qemu-options-wrapper.h
  141. qemu-options.h
  142. qemu-options.hx
  143. qemu-seccomp.c
  144. qemu-tech.texi
  145. qemu-timer.c
  146. qemu.nsi
  147. qemu.sasl
  148. qmp-commands.hx
  149. qmp.c
  150. qtest.c
  151. README
  152. rules.mak
  153. savevm.c
  154. softmmu_template.h
  155. spice-qemu-char.c
  156. tcg-runtime.c
  157. tci.c
  158. thread-pool.c
  159. thunk.c
  160. tpm.c
  161. trace-events
  162. translate-all.c
  163. translate-all.h
  164. user-exec.c
  165. VERSION
  166. version.rc
  167. vl.c
  168. vmstate.c
  169. xbzrle.c
  170. xen-common-stub.c
  171. xen-common.c
  172. xen-hvm-stub.c
  173. xen-hvm.c
  174. xen-mapcache.c