diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2012-05-08 16:51:41 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2012-05-10 10:32:12 +0200 |
| commit | e023b2e244ddcc25308309d20c6bfd037897b10c (patch) | |
| tree | 154bfaea2368cfcbb39a2d2610dd9019510a14ff /block_int.h | |
| parent | 93e9eb6808c886f5f1c903b7ced1eed65de2ba39 (diff) | |
block: fix snapshot on QED
QED's opaque data includes a pointer back to the BlockDriverState.
This breaks when bdrv_append shuffles data between bs_new and bs_top.
To avoid this, add a "rebind" function that tells the driver about
the new relationship between the BlockDriverState and its opaque.
The patch also adds rebind to VVFAT for completeness, even though
it is not used with live snapshots.
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block_int.h')
| -rw-r--r-- | block_int.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/block_int.h b/block_int.h index 086832aab9..fbbc7aeb1a 100644 --- a/block_int.h +++ b/block_int.h @@ -140,6 +140,7 @@ struct BlockDriver { int (*bdrv_write)(BlockDriverState *bs, int64_t sector_num, const uint8_t *buf, int nb_sectors); void (*bdrv_close)(BlockDriverState *bs); + void (*bdrv_rebind)(BlockDriverState *bs); int (*bdrv_create)(const char *filename, QEMUOptionParameter *options); int (*bdrv_set_key)(BlockDriverState *bs, const char *key); int (*bdrv_make_empty)(BlockDriverState *bs); |