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block: Monitor command commit neglects to report some errors 

The non-live bdrv_commit() function may return one of the following
errors: -ENOTSUP, -EBUSY, -EACCES, -EIO.  The only error that is
checked in the HMP handler is -EBUSY, so the monitor command 'commit'
silently fails for all error cases other than 'Device is in use'.

Report error using monitor_printf() and strerror(), and convert existing
qerror_report() calls in do_commit() to monitor_printf().

Signed-off-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This commit is contained in:
Jeff Cody 2013-01-18 12:45:35 -05:00 committed by Luiz Capitulino
parent 11c29918be
commit 58513bde83
1 changed files with 5 additions and 9 deletions
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14
blockdev.c
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@ -642,21 +642,17 @@ void do_commit(Monitor *mon, const QDict *qdict)
if (!strcmp(device, "all")) {
ret = bdrv_commit_all();
if (ret == -EBUSY) {
qerror_report(QERR_DEVICE_IN_USE, device);
return;
}
} else {
bs = bdrv_find(device);
if (!bs) {
qerror_report(QERR_DEVICE_NOT_FOUND, device);
monitor_printf(mon, "Device '%s' not found\n", device);
return;
}
ret = bdrv_commit(bs);
if (ret == -EBUSY) {
qerror_report(QERR_DEVICE_IN_USE, device);
return;
}
}
if (ret < 0) {
monitor_printf(mon, "'commit' error for '%s': %s\n", device,
strerror(-ret));
}
}