Write table offset and size in one syscall (Gleb Natapov)

Otherwise if VM is killed between two writes data may be lost.
But if offset and size fields are at the same disk block one
write should update them both simultaneously.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5859 c046a42c-6fe2-441c-8c8c-71466251a162
1 file changed
tree: b2f647bf1481647e0d2cebef8b9e6238a74b831c
  1. audio/
  2. bsd-user/
  3. darwin-user/
  4. fpu/
  5. gdb-xml/
  6. hw/
  7. keymaps/
  8. linux-user/
  9. pc-bios/
  10. slirp/
  11. target-alpha/
  12. target-arm/
  13. target-cris/
  14. target-i386/
  15. target-m68k/
  16. target-mips/
  17. target-ppc/
  18. target-sh4/
  19. target-sparc/
  20. tcg/
  21. tests/
  22. .gitignore
  23. a.out.h
  24. aes.c
  25. aes.h
  26. aio.c
  27. alpha-dis.c
  28. alpha.ld
  29. arm-dis.c
  30. arm-semi.c
  31. arm.ld
  32. block-bochs.c
  33. block-cloop.c
  34. block-cow.c
  35. block-dmg.c
  36. block-nbd.c
  37. block-parallels.c
  38. block-qcow.c
  39. block-qcow2.c
  40. block-raw-posix.c
  41. block-raw-win32.c
  42. block-vmdk.c
  43. block-vpc.c
  44. block-vvfat.c
  45. block.c
  46. block.h
  47. block_int.h
  48. bswap.h
  49. bt-host.c
  50. bt-vhci.c
  51. buffered_file.c
  52. buffered_file.h
  53. Changelog
  54. check_ops.sh
  55. cocoa.m
  56. configure
  57. console.c
  58. console.h
  59. COPYING
  60. COPYING.LIB
  61. cpu-all.h
  62. cpu-defs.h
  63. cpu-exec.c
  64. cris-dis.c
  65. curses.c
  66. curses_keys.h
  67. cutils.c
  68. d3des.c
  69. d3des.h
  70. def-helper.h
  71. dis-asm.h
  72. disas.c
  73. disas.h
  74. dyngen-exec.h
  75. dyngen.c
  76. elf.h
  77. elf_ops.h
  78. exec-all.h
  79. exec.c
  80. feature_to_c.sh
  81. gdbstub.c
  82. gdbstub.h
  83. gen-icount.h
  84. host-utils.c
  85. host-utils.h
  86. hostregs_helper.h
  87. hpet.h
  88. hppa-dis.c
  89. hppa.ld
  90. i386-dis.c
  91. i386.ld
  92. ia64.ld
  93. keymaps.c
  94. kqemu.c
  95. kqemu.h
  96. kvm-all.c
  97. kvm.h
  98. LICENSE
  99. loader.c
  100. m68k-dis.c
  101. m68k-semi.c
  102. m68k.ld
  103. MAINTAINERS
  104. Makefile
  105. Makefile.target
  106. migration-exec.c
  107. migration-tcp.c
  108. migration.c
  109. migration.h
  110. mips-dis.c
  111. mips.ld
  112. mipsel.ld
  113. monitor.c
  114. nbd.c
  115. nbd.h
  116. net-checksum.c
  117. net.c
  118. net.h
  119. osdep.c
  120. osdep.h
  121. ppc-dis.c
  122. ppc.ld
  123. ppc64.ld
  124. qemu-aio.h
  125. qemu-binfmt-conf.sh
  126. qemu-char.c
  127. qemu-char.h
  128. qemu-common.h
  129. qemu-doc.texi
  130. qemu-img.c
  131. qemu-img.texi
  132. qemu-lock.h
  133. qemu-log.h
  134. qemu-malloc.c
  135. qemu-nbd.c
  136. qemu-nbd.texi
  137. qemu-sockets.c
  138. qemu-tech.texi
  139. qemu-timer.h
  140. qemu-tool.c
  141. qemu_socket.h
  142. readline.c
  143. README
  144. s390-dis.c
  145. s390.ld
  146. savevm.c
  147. sdl.c
  148. sdl_keysym.h
  149. sh4-dis.c
  150. softmmu-semi.h
  151. softmmu_defs.h
  152. softmmu_exec.h
  153. softmmu_header.h
  154. softmmu_template.h
  155. sparc-dis.c
  156. sparc.ld
  157. sparc64.ld
  158. sys-queue.h
  159. sysemu.h
  160. tap-win32.c
  161. texi2pod.pl
  162. thunk.c
  163. thunk.h
  164. TODO
  165. translate-all.c
  166. uboot_image.h
  167. usb-bsd.c
  168. usb-linux.c
  169. usb-stub.c
  170. VERSION
  171. vgafont.h
  172. vl.c
  173. vnc.c
  174. vnc_keysym.h
  175. vnchextile.h
  176. x86_64.ld
  177. x_keymap.c