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block: add 'speed' optional parameter to block-stream

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Allow streaming operations to be started with an initial speed limit.
This eliminates the window of time between starting streaming and
issuing block-job-set-speed.  Users should use the new optional 'speed'
parameter instead so that speed limits are in effect immediately when
the job starts.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2012-04-25 16:51:03 +01:00 • committed by Luiz Capitulino
parent 882ec7ce53
commit c83c66c3b5
8 changed files with 42 additions and 15 deletions
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4
hmp.c
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@ -835,8 +835,10 @@ void hmp_block_stream(Monitor *mon, const QDict *qdict)
Error *error = NULL;
const char *device = qdict_get_str(qdict, "device");
const char *base = qdict_get_try_str(qdict, "base");
int64_t speed = qdict_get_try_int(qdict, "speed", 0);
qmp_block_stream(device, base != NULL, base, &error);
qmp_block_stream(device, base != NULL, base,
qdict_haskey(qdict, "speed"), speed, &error);
hmp_handle_error(mon, &error);
}