diff options
| author |   Marcelo Tosatti <mtosatti@redhat.com> | 2012-10-11 05:27:15 -0300 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2012-10-11 05:27:15 -0300 |
| commit | 4d9367b76f71c6d938cf8201392abe4bfb1136cb (patch) | |
| tree | 93a31afc3151c19e4906aed6748e842d8431fb02 /block/qcow2.c | |
| parent | 6b414d9fb86527118f3ddb81a1d1a684b3548a9d (diff) | |
| parent | 8e65440d5f64435c003d32088757f702b86af9b4 (diff) | |
* upstream-merge: (575 commits)
ssi: Add slave autoconnect helper
MAINTAINERS: Added maintainerships for SSI
xilinx_zynq: Added SPI controllers + flashes
xilinx_spips: Xilinx Zynq SPI cntrlr device model
petalogix-ml605: added SPI controller with n25q128
xilinx_spi: Initial impl. of Xilinx SPI controller
m25p80: Initial implementation of SPI flash device
hw: Added generic FIFO API.
stellaris: Removed SSI mux
qdev: allow multiple qdev_init_gpio_in() calls
ssi: Added create_slave_no_init()
ssi: Implemented CS behaviour
ssi: Support for multiple attached devices
qemu-barrier: Fix compilation on i386 hosts
target-sparc: Optimize conditionals using SUBCC
target-sparc: Fall through from not-taken trap
target-sparc: Cleanup "global" temporary allocation
target-sparc: Use movcond for FMOV*R
target-sparc: Use movcond in mulscc
target-sparc: Move taddcctv and tsubcctv out of line
...
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'block/qcow2.c')
| -rw-r--r-- | block/qcow2.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/block/qcow2.c b/block/qcow2.c index 8f183f146..c1ff31f48 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -52,6 +52,7 @@ typedef struct { uint32_t magic; uint32_t len; } QCowExtension; + #define QCOW2_EXT_MAGIC_END 0 #define QCOW2_EXT_MAGIC_BACKING_FORMAT 0xE2792ACA #define QCOW2_EXT_MAGIC_FEATURE_TABLE 0x6803f857 @@ -558,6 +559,14 @@ static int qcow2_set_key(BlockDriverState *bs, const char *key) return 0; } +/* We have nothing to do for QCOW2 reopen, stubs just return + * success */ +static int qcow2_reopen_prepare(BDRVReopenState *state, + BlockReopenQueue *queue, Error **errp) +{ + return 0; +} + static int coroutine_fn qcow2_co_is_allocated(BlockDriverState *bs, int64_t sector_num, int nb_sectors, int *pnum) { @@ -1087,6 +1096,7 @@ int qcow2_update_header(BlockDriverState *bs) goto fail; } + /* Using strncpy is ok here, since buf is not NUL-terminated. */ strncpy(buf, bs->backing_file, buflen); header->backing_file_offset = cpu_to_be64(buf - ((char*) header)); @@ -1679,6 +1689,7 @@ static BlockDriver bdrv_qcow2 = { .bdrv_probe = qcow2_probe, .bdrv_open = qcow2_open, .bdrv_close = qcow2_close, + .bdrv_reopen_prepare = qcow2_reopen_prepare, .bdrv_create = qcow2_create, .bdrv_co_is_allocated = qcow2_co_is_allocated, .bdrv_set_key = qcow2_set_key, |