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| author | Max Reitz <mreitz@redhat.com> | 2013-10-20 21:52:35 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2013-10-24 11:50:51 +0200 |
| commit | 6e13610aa454beba52944e8df6d93158d68ab911 (patch) | |
| tree | 5166de3fc9a399df930e53091e2aeaf5c18b532f /qemu-img.c | |
| parent | eedff66f21e542650d895801549ce05ac108278b (diff) | |
| download | qemu-6e13610aa454beba52944e8df6d93158d68ab911.zip qemu-6e13610aa454beba52944e8df6d93158d68ab911.tar.gz qemu-6e13610aa454beba52944e8df6d93158d68ab911.tar.bz2 | |
qcow2: Unset zero_beyond_eof in save_vmstate
Saving the VM state is done using bdrv_pwrite. This function may perform
a read-modify-write, which in this case results in data being read from
beyond the end of the virtual disk. Since we are actually trying to
access an area which is not a part of the virtual disk, zero_beyond_eof
has to be set to false before performing the partial write, otherwise
the VM state may become corrupted.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'qemu-img.c')
0 files changed, 0 insertions, 0 deletions