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  1. 06 6月, 2013 3 次提交
  3. 24 5月, 2013 1 次提交
    • K
      qemu-io: Fix 'map' output · a00e81e9
      由 Kevin Wolf 提交于 
      The output of the 'map' command in qemu-io used to directly resemble
bdrv_is_allocated() and could contain many lines for small chunks that
all have the same allocation status. After this patch, they will be
coalesced into a single output line for a large chunk.

As a side effect, the command gains some error handling.
Signed-off-by: NKevin Wolf <kwolf@redhat.com>
      a00e81e9
  5. 23 3月, 2013 1 次提交
  7. 15 3月, 2013 1 次提交
  9. 23 2月, 2013 1 次提交
    • P
      block: implement BDRV_O_UNMAP · 9e8f1835
      由 Paolo Bonzini 提交于 
      It is better to present homogeneous hardware independent of the storage
technology that is chosen on the host, hence we make discard a host
parameter; the user can choose whether to pass it down to the image
format and protocol, or to ignore it.

Using DISCARD with filesystems can cause very severe fragmentation, so it
is left default-off for now.  This can change later when we implement the
"anchor" operation for efficient management of preallocated files.

There is still one choice to make: whether DISCARD has an effect on the
dirty bitmap or not.  I chose yes, though there is a disadvantage: if
the guest is buggy and issues discards for data that is in use, there
will be no way to migrate storage for that guest without downgrading
the machine type to an older one.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>
      9e8f1835
  11. 19 12月, 2012 2 次提交
  13. 12 12月, 2012 1 次提交
    • K
      qemu-io: Add AIO debugging commands · 41c695c7
      由 Kevin Wolf 提交于 
      This makes the blkdebug suspend/resume functionality available in
qemu-io. Use it like this:

  $ ./qemu-io blkdebug::/tmp/test.qcow2
  qemu-io> break write_aio req_a
  qemu-io> aio_write 0 4k
  qemu-io> blkdebug: Suspended request 'req_a'
  qemu-io> resume req_a
  blkdebug: Resuming request 'req_a'
  qemu-io> wrote 4096/4096 bytes at offset 0
  4 KiB, 1 ops; 0:00:30.71 (133.359788 bytes/sec and 0.0326 ops/sec)
Signed-off-by: NKevin Wolf <kwolf@redhat.com>
      41c695c7
  15. 11 12月, 2012 1 次提交
  17. 15 11月, 2012 1 次提交
  19. 06 11月, 2012 1 次提交
  21. 07 8月, 2012 1 次提交
  23. 17 7月, 2012 1 次提交
  25. 10 5月, 2012 1 次提交
  27. 19 4月, 2012 2 次提交
  29. 05 4月, 2012 1 次提交
  31. 29 2月, 2012 1 次提交
  33. 09 2月, 2012 1 次提交
  35. 27 1月, 2012 1 次提交
  37. 26 1月, 2012 1 次提交
  39. 15 12月, 2011 1 次提交
    • P
      block: bdrv_aio_* do not return NULL · ad54ae80
      由 Paolo Bonzini 提交于 
      Initially done with the following semantic patch:

@ rule1 @
expression E;
statement S;
@@
  E =
(
   bdrv_aio_readv
|  bdrv_aio_writev
|  bdrv_aio_flush
|  bdrv_aio_discard
|  bdrv_aio_ioctl
)
     (...);
(
- if (E == NULL) { ... }
|
- if (E)
    { <... S ...> }
)

which however missed the occurrence in block/blkverify.c
(as it should have done), and left behind some unused
variables.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>
      ad54ae80
  41. 05 12月, 2011 1 次提交
  43. 02 12月, 2011 1 次提交
  45. 04 11月, 2011 2 次提交
  47. 29 10月, 2011 1 次提交
  49. 21 10月, 2011 1 次提交
  51. 16 9月, 2011 1 次提交
  53. 10 9月, 2011 1 次提交
  55. 21 8月, 2011 1 次提交
  57. 18 7月, 2011 2 次提交
  59. 08 6月, 2011 1 次提交
  61. 31 1月, 2011 1 次提交
  63. 13 1月, 2011 1 次提交
  65. 17 12月, 2010 2 次提交