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block: Leave tracking media change to device models 

hw/fdc.c is the only one that cares.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Markus Armbruster 2011-08-03 15:08:08 +02:00 committed by Kevin Wolf
parent be32f75f4d
commit 8e49ca4624
3 changed files with 24 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
block.c
View File

@ -689,7 +689,6 @@ int bdrv_open(BlockDriverState *bs, const char *filename, int flags,
}
if (!bdrv_key_required(bs)) {
bs->media_changed = 1;
bdrv_dev_change_media_cb(bs);
}
@ -726,7 +725,6 @@ void bdrv_close(BlockDriverState *bs)
bdrv_close(bs->file);
}
bs->media_changed = 1;
bdrv_dev_change_media_cb(bs);
}
}
@ -1665,7 +1663,6 @@ int bdrv_set_key(BlockDriverState *bs, const char *key)
} else if (!bs->valid_key) {
bs->valid_key = 1;
/* call the change callback now, we skipped it on open */
bs->media_changed = 1;
bdrv_dev_change_media_cb(bs);
}
return ret;
@ -3040,22 +3037,17 @@ int bdrv_is_inserted(BlockDriverState *bs)
}
/**
* Return TRUE if the media changed since the last call to this
* function. It is currently only used for floppy disks
* Return whether the media changed since the last call to this
* function, or -ENOTSUP if we don't know. Most drivers don't know.
*/
int bdrv_media_changed(BlockDriverState *bs)
{
BlockDriver *drv = bs->drv;
int ret;
if (!drv || !drv->bdrv_media_changed)
ret = -ENOTSUP;
else
ret = drv->bdrv_media_changed(bs);
if (ret == -ENOTSUP)
ret = bs->media_changed;
bs->media_changed = 0;
return ret;
if (drv && drv->bdrv_media_changed) {
return drv->bdrv_media_changed(bs);
}
return -ENOTSUP;
}
/**

1
block_int.h
View File

@ -175,7 +175,6 @@ struct BlockDriverState {
this file image */
char backing_format[16]; /* if non-zero and backing_file exists */
int is_temporary;
int media_changed;
BlockDriverState *backing_hd;
BlockDriverState *file;

40
hw/fdc.c
View File

@ -535,30 +535,11 @@ static CPUWriteMemoryFunc * const fdctrl_mem_write_strict[3] = {
NULL,
};
static void fdrive_media_changed_pre_save(void *opaque)
{
FDrive *drive = opaque;
drive->media_changed = drive->bs->media_changed;
}
static int fdrive_media_changed_post_load(void *opaque, int version_id)
{
FDrive *drive = opaque;
if (drive->bs != NULL) {
drive->bs->media_changed = drive->media_changed;
}
/* User ejected the floppy when drive->bs == NULL */
return 0;
}
static bool fdrive_media_changed_needed(void *opaque)
{
FDrive *drive = opaque;
return (drive->bs != NULL && drive->bs->media_changed != 1);
return (drive->bs != NULL && drive->media_changed != 1);
}
static const VMStateDescription vmstate_fdrive_media_changed = {
@ -566,8 +547,6 @@ static const VMStateDescription vmstate_fdrive_media_changed = {
.version_id = 1,
.minimum_version_id = 1,
.minimum_version_id_old = 1,
.pre_save = fdrive_media_changed_pre_save,
.post_load = fdrive_media_changed_post_load,
.fields = (VMStateField[]) {
VMSTATE_UINT8(media_changed, FDrive),
VMSTATE_END_OF_LIST()
@ -920,6 +899,10 @@ static int fdctrl_media_changed(FDrive *drv)
if (!drv->bs)
return 0;
ret = bdrv_media_changed(drv->bs);
if (ret < 0) {
ret = drv->media_changed;
}
drv->media_changed = 0;
if (ret) {
fd_revalidate(drv);
}
@ -1791,6 +1774,17 @@ static void fdctrl_result_timer(void *opaque)
fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00);
}
static void fdctrl_change_cb(void *opaque)
{
FDrive *drive = opaque;
drive->media_changed = 1;
}
static const BlockDevOps fdctrl_block_ops = {
.change_media_cb = fdctrl_change_cb,
};
/* Init functions */
static int fdctrl_connect_drives(FDCtrl *fdctrl)
{
@ -1814,7 +1808,9 @@ static int fdctrl_connect_drives(FDCtrl *fdctrl)
fd_init(drive);
fd_revalidate(drive);
if (drive->bs) {
drive->media_changed = 1;
bdrv_set_removable(drive->bs, 1);
bdrv_set_dev_ops(drive->bs, &fdctrl_block_ops, drive);
}
}
return 0;