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  1. 09 Jul, 2014 1 commit
  3. 19 Mar, 2014 1 commit
  5. 13 Mar, 2014 1 commit
  7. 24 Jan, 2014 1 commit
  9. 22 Jan, 2014 1 commit
  11. 29 Nov, 2013 1 commit
  13. 28 Nov, 2013 1 commit
  15. 11 Oct, 2013 1 commit
  17. 06 Sep, 2013 1 commit
  19. 22 Aug, 2013 1 commit
  21. 06 Jun, 2013 10 commits
  23. 24 May, 2013 1 commit
    • Kevin Wolf's avatar
      qemu-io: Fix 'map' output · a00e81e9
      Kevin Wolf authored 
      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: default avatarKevin Wolf <kwolf@redhat.com>
      a00e81e9
  25. 22 Mar, 2013 1 commit
  27. 15 Mar, 2013 1 commit
  29. 22 Feb, 2013 1 commit
    • Paolo Bonzini's avatar
      block: implement BDRV_O_UNMAP · 9e8f1835
      Paolo Bonzini authored 
      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: default avatarPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: default avatarKevin Wolf <kwolf@redhat.com>
      9e8f1835
  31. 19 Dec, 2012 2 commits
  33. 12 Dec, 2012 1 commit
    • Kevin Wolf's avatar
      qemu-io: Add AIO debugging commands · 41c695c7
      Kevin Wolf authored 
      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: default avatarKevin Wolf <kwolf@redhat.com>
      41c695c7
  35. 11 Dec, 2012 1 commit
  37. 14 Nov, 2012 1 commit
  39. 05 Nov, 2012 1 commit
  41. 06 Aug, 2012 1 commit
  43. 17 Jul, 2012 1 commit
  45. 10 May, 2012 1 commit
  47. 19 Apr, 2012 2 commits
  49. 05 Apr, 2012 1 commit
    • Stefan Hajnoczi's avatar
      qemu-io: add option to enable tracing · d7bb72c8
      Stefan Hajnoczi authored 
      It can be useful to enable QEMU tracing when trying out block layer
interfaces via qemu-io.  Tracing can be enabled using the new -T FILE
option where the given file contains a list of trace events to enable
(just like the qemu --trace events=FILE option).

  $ echo qemu_vfree >my-events
  $ ./qemu-io -T my-events ...

Remember to use ./configure --enable-trace-backend=BACKEND when building
qemu-io.
Signed-off-by: default avatarStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: default avatarKevin Wolf <kwolf@redhat.com>
      d7bb72c8
  51. 29 Feb, 2012 1 commit
  53. 09 Feb, 2012 1 commit
  55. 26 Jan, 2012 2 commits