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block: tell drivers about an image resize

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Extend the change_cb callback with a reason argument, and use it
to tell drivers about size changes.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Christoph Hellwig 2011-01-24 13:32:41 +01:00 • committed by Kevin Wolf
parent 6d4a2b3a47
commit db97ee6a97
5 changed files with 25 additions and 8 deletions
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7
hw/sd.c
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@ -422,9 +422,14 @@ static void sd_reset(SDState *sd, BlockDriverState *bdrv)
sd->pwd_len = 0;
}
static void sd_cardchange(void *opaque)
static void sd_cardchange(void *opaque, int reason)
{
SDState *sd = opaque;
if (!(reason & CHANGE_MEDIA)) {
return;
}
qemu_set_irq(sd->inserted_cb, bdrv_is_inserted(sd->bdrv));
if (bdrv_is_inserted(sd->bdrv)) {
sd_reset(sd, sd->bdrv);