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From: | Kevin Wolf |
Subject: | Re: [Qemu-devel] [PATCH v2 09/13] block: Add a 'mutable_opts' field to BlockDriver |
Date: | Tue, 12 Mar 2019 13:32:00 +0100 |
User-agent: | Mutt/1.11.3 (2019-02-01) |
Am 06.03.2019 um 19:11 hat Alberto Garcia geschrieben: > If we reopen a BlockDriverState and there is an option that is present > in bs->options but missing from the new set of options then we have to > return an error unless the driver is able to reset it to its default > value. > > This patch adds a new 'mutable_opts' field to BlockDriver. This is > a list of runtime options that can be modified during reopen. If an > option in this list is unspecified on reopen then it must be reset (or > return an error). > > Signed-off-by: Alberto Garcia <address@hidden> > --- > block/file-posix.c | 6 ++++++ > block/qcow2.c | 25 +++++++++++++++++++++++++ > block/raw-format.c | 3 +++ > include/block/block_int.h | 8 ++++++++ > 4 files changed, 42 insertions(+) Two more drivers seem to be able to change options: gluster (debug and logfile) and throttle (throttle-group). Kevin
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