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block: Use bdrv_nb_sectors() where sectors, not bytes are wanted

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Instead of bdrv_getlength().

Aside: a few of these callers don't handle errors.  I didn't
investigate whether they should.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Markus Armbruster 2014-06-26 13:23:22 +02:00 • committed by Kevin Wolf
parent 43716fa805
commit 57322b7811
4 changed files with 8 additions and 11 deletions
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3
block.c
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@ -5283,13 +5283,12 @@ BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverState *bs, int granularity,
granularity >>= BDRV_SECTOR_BITS;
assert(granularity);
bitmap_size = bdrv_getlength(bs);
bitmap_size = bdrv_nb_sectors(bs);
if (bitmap_size < 0) {
error_setg_errno(errp, -bitmap_size, "could not get length of device");
errno = -bitmap_size;
return NULL;
}
bitmap_size >>= BDRV_SECTOR_BITS;
bitmap = g_malloc0(sizeof(BdrvDirtyBitmap));
bitmap->bitmap = hbitmap_alloc(bitmap_size, ffs(granularity) - 1);
QLIST_INSERT_HEAD(&bs->dirty_bitmaps, bitmap, list);