l2_allocate: Write complete sectors

When modifying the L1 table, l2_allocate() needs to write complete sectors
instead of single entries. The L1 table is already in memory, reading it from
disk in the block layer to align the request is wasted performance.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
1 file changed
tree: 3984780c10aebda3251b754e7b8d8b4ebef39162
  1. audio/
  2. block/
  3. bsd-user/
  4. darwin-user/
  5. fpu/
  6. gdb-xml/
  7. hw/
  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-microblaze/
  17. target-mips/
  18. target-ppc/
  19. target-sh4/
  20. target-sparc/
  21. tcg/
  22. tests/
  23. .gitignore
  24. a.out.h
  25. acl.c
  26. acl.h
  27. aes.c
  28. aes.h
  29. aio.c
  30. alpha-dis.c
  31. alpha.ld
  32. arm-dis.c
  33. arm-semi.c
  34. arm.ld
  35. balloon.h
  36. block.c
  37. block.h
  38. block_int.h
  39. bswap.h
  40. bt-host.c
  41. bt-host.h
  42. bt-vhci.c
  43. buffered_file.c
  44. buffered_file.h
  45. cache-utils.c
  46. cache-utils.h
  47. Changelog
  48. cmd.c
  49. cmd.h
  50. cocoa.m
  51. CODING_STYLE
  52. configure
  53. console.c
  54. console.h
  55. COPYING
  56. COPYING.LIB
  57. cpu-all.h
  58. cpu-common.h
  59. cpu-defs.h
  60. cpu-exec.c
  61. cris-dis.c
  62. curses.c
  63. curses_keys.h
  64. cutils.c
  65. d3des.c
  66. d3des.h
  67. def-helper.h
  68. device_tree.c
  69. device_tree.h
  70. dis-asm.h
  71. disas.c
  72. disas.h
  73. dma-helpers.c
  74. dma.h
  75. dyngen-exec.h
  76. elf.h
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  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. hxtool
  91. i386-dis.c
  92. i386.ld
  93. ia64.ld
  94. keymaps.c
  95. keymaps.h
  96. kqemu.c
  97. kqemu.h
  98. kvm-all.c
  99. kvm.h
  100. libfdt_env.h
  101. LICENSE
  102. loader.c
  103. m68k-dis.c
  104. m68k-semi.c
  105. m68k.ld
  106. MAINTAINERS
  107. Makefile
  108. Makefile.hw
  109. Makefile.target
  110. microblaze-dis.c
  111. migration-exec.c
  112. migration-tcp.c
  113. migration.c
  114. migration.h
  115. mips-dis.c
  116. mips.ld
  117. mipsel.ld
  118. module.c
  119. module.h
  120. monitor.c
  121. monitor.h
  122. nbd.c
  123. nbd.h
  124. net-checksum.c
  125. net.c
  126. net.h
  127. osdep.c
  128. osdep.h
  129. pci-ids.txt
  130. posix-aio-compat.c
  131. posix-aio-compat.h
  132. ppc-dis.c
  133. ppc.ld
  134. ppc64.ld
  135. qemu-aio.h
  136. qemu-binfmt-conf.sh
  137. qemu-char.c
  138. qemu-char.h
  139. qemu-common.h
  140. qemu-doc.texi
  141. qemu-img-cmds.hx
  142. qemu-img.c
  143. qemu-img.texi
  144. qemu-io.c
  145. qemu-lock.h
  146. qemu-log.h
  147. qemu-malloc.c
  148. qemu-monitor.hx
  149. qemu-nbd.c
  150. qemu-nbd.texi
  151. qemu-option.c
  152. qemu-option.h
  153. qemu-options.hx
  154. qemu-sockets.c
  155. qemu-tech.texi
  156. qemu-thread.c
  157. qemu-thread.h
  158. qemu-timer.h
  159. qemu-tool.c
  160. qemu.sasl
  161. qemu_socket.h
  162. readline.c
  163. readline.h
  164. README
  165. rules.mak
  166. s390-dis.c
  167. s390.ld
  168. savevm.c
  169. sdl.c
  170. sdl_keysym.h
  171. sh4-dis.c
  172. softmmu-semi.h
  173. softmmu_defs.h
  174. softmmu_exec.h
  175. softmmu_header.h
  176. softmmu_template.h
  177. sparc-dis.c
  178. sparc.ld
  179. sparc64.ld
  180. sys-queue.h
  181. sysemu.h
  182. tap-win32.c
  183. targphys.h
  184. texi2pod.pl
  185. thunk.c
  186. thunk.h
  187. TODO
  188. tool-osdep.c
  189. translate-all.c
  190. uboot_image.h
  191. usb-bsd.c
  192. usb-linux.c
  193. usb-stub.c
  194. VERSION
  195. vgafont.h
  196. vl.c
  197. vnc-auth-sasl.c
  198. vnc-auth-sasl.h
  199. vnc-auth-vencrypt.c
  200. vnc-auth-vencrypt.h
  201. vnc-tls.c
  202. vnc-tls.h
  203. vnc.c
  204. vnc.h
  205. vnc_keysym.h
  206. vnchextile.h
  207. x86_64.ld
  208. x_keymap.c
  209. x_keymap.h