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blockdev: Mark {insert, remove}-medium experimental

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While in the long term we want throttling to be its own block filter
BDS, in the short term we want it to be part of the BB instead of a BDS;
even in the long term we may want legacy throttling to be automatically
tied to the BB.

blockdev-insert-medium and blockdev-remove-medium do not retain
throttling information in the BB (deliberately so). Therefore, using
them means tying this information to a BDS, which would break the model
described above. (The same applies to other flags such as
detect_zeroes.) We probably want to move this information to the BB or
its own filter BDS before blockdev-{insert,remove}-medium can be
considered completely stable.

Therefore, mark these functions experimental for the time being.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1449847385-13986-2-git-send-email-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
[PMM: fixed format nit (underlining) in qmp-commands.hx]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Max Reitz 2015-12-11 16:23:05 +01:00 • committed by Peter Maydell
parent 3fd3c4b37c
commit 6e0abc251d
5 changed files with 45 additions and 33 deletions
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10
blockdev.c
View file

@ -2257,7 +2257,7 @@ void qmp_eject(const char *device, bool has_force, bool force, Error **errp)
return;
}
qmp_blockdev_remove_medium(device, errp);
qmp_x_blockdev_remove_medium(device, errp);
}
void qmp_block_passwd(bool has_device, const char *device,
@ -2343,7 +2343,7 @@ void qmp_blockdev_close_tray(const char *device, Error **errp)
blk_dev_change_media_cb(blk, true);
}
void qmp_blockdev_remove_medium(const char *device, Error **errp)
void qmp_x_blockdev_remove_medium(const char *device, Error **errp)
{
BlockBackend *blk;
BlockDriverState *bs;
@ -2430,8 +2430,8 @@ static void qmp_blockdev_insert_anon_medium(const char *device,
QTAILQ_INSERT_TAIL(&bdrv_states, bs, device_list);
}
void qmp_blockdev_insert_medium(const char *device, const char *node_name,
Error **errp)
void qmp_x_blockdev_insert_medium(const char *device, const char *node_name,
Error **errp)
{
BlockDriverState *bs;
@ -2520,7 +2520,7 @@ void qmp_blockdev_change_medium(const char *device, const char *filename,
goto fail;
}
qmp_blockdev_remove_medium(device, &err);
qmp_x_blockdev_remove_medium(device, &err);
if (err) {
error_propagate(errp, err);
goto fail;