diff options
| author | Alberto Garcia <berto@igalia.com> | 2019-03-12 18:48:48 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2019-03-12 20:30:14 +0100 |
| commit | 8a2ce0bc1eb447c19c52422c03e690a420ea3ec7 (patch) | |
| tree | ea4398dbcc4f7211347e4b0100de2030a680c10b /block/raw-format.c | |
| parent | cb828c31de125d8c88ba1c3510b11343cbd211b3 (diff) | |
block: Add a 'mutable_opts' field to BlockDriver
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 <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/raw-format.c')
| -rw-r--r-- | block/raw-format.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/block/raw-format.c b/block/raw-format.c index e3e5ba2c8a..cec29986cc 100644 --- a/block/raw-format.c +++ b/block/raw-format.c @@ -37,6 +37,8 @@ typedef struct BDRVRawState { bool has_size; } BDRVRawState; +static const char *const mutable_opts[] = { "offset", "size", NULL }; + static QemuOptsList raw_runtime_opts = { .name = "raw", .head = QTAILQ_HEAD_INITIALIZER(raw_runtime_opts.head), @@ -570,6 +572,7 @@ BlockDriver bdrv_raw = { .create_opts = &raw_create_opts, .bdrv_has_zero_init = &raw_has_zero_init, .strong_runtime_opts = raw_strong_runtime_opts, + .mutable_opts = mutable_opts, }; static void bdrv_raw_init(void) |