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| author | Jes Sorensen <Jes.Sorensen@redhat.com> | 2010-05-27 16:20:30 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2010-06-04 11:43:39 +0200 |
| commit | 3e82990b52d5afeb4957dd9b87be83d752e369b9 (patch) | |
| tree | ba5c89885d52e6c2e240e21393c92f822d677c04 /block.c | |
| parent | 358c360feb346dff8f911e2d1dbcdd6319393f1d (diff) | |
| download | qemu-3e82990b52d5afeb4957dd9b87be83d752e369b9.tar.gz | |
Cleanup: bdrv_open() no need to shift total_size just to shift back.
In bdrv_open() there is no need to shift total_size >> 9 just to
multiply it by 512 again just a few lines later, since this is the
only place the variable is used.
Mask with BDRV_SECTOR_MASK to protect against case where we are
passed a corrupted image.
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block.c')
| -rw-r--r-- | block.c | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -522,7 +522,7 @@ int bdrv_open(BlockDriverState *bs, const char *filename, int flags, bdrv_delete(bs1); return ret; } - total_size = bdrv_getlength(bs1) >> BDRV_SECTOR_BITS; + total_size = bdrv_getlength(bs1) & BDRV_SECTOR_MASK; if (bs1->drv && bs1->drv->protocol_name) is_protocol = 1; @@ -541,7 +541,7 @@ int bdrv_open(BlockDriverState *bs, const char *filename, int flags, bdrv_qcow2 = bdrv_find_format("qcow2"); options = parse_option_parameters("", bdrv_qcow2->create_options, NULL); - set_option_parameter_int(options, BLOCK_OPT_SIZE, total_size * 512); + set_option_parameter_int(options, BLOCK_OPT_SIZE, total_size); set_option_parameter(options, BLOCK_OPT_BACKING_FILE, backing_filename); if (drv) { set_option_parameter(options, BLOCK_OPT_BACKING_FMT, |