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| author | Max Reitz <mreitz@redhat.com> | 2019-02-01 20:29:28 +0100 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2019-02-25 15:11:27 +0100 |
| commit | 998b3a1e5a2dd23bf89a853e15fabdaa8d788a72 (patch) | |
| tree | 83d85dcf5d9a9ad80c2fe752bb21c6436ce0fe87 /block/null.c | |
| parent | 97e2f021f844383d85de526ce88667ca34ecd277 (diff) | |
| download | qemu-998b3a1e5a2dd23bf89a853e15fabdaa8d788a72.zip qemu-998b3a1e5a2dd23bf89a853e15fabdaa8d788a72.tar.gz qemu-998b3a1e5a2dd23bf89a853e15fabdaa8d788a72.tar.bz2 | |
block: Purify .bdrv_refresh_filename()
Currently, BlockDriver.bdrv_refresh_filename() is supposed to both
refresh the filename (BDS.exact_filename) and set BDS.full_open_options.
Now that we have generic code in the central bdrv_refresh_filename() for
creating BDS.full_open_options, we can drop the latter part from all
BlockDriver.bdrv_refresh_filename() implementations.
This also means that we can drop all of the existing default code for
this from the global bdrv_refresh_filename() itself.
Furthermore, we now have to call BlockDriver.bdrv_refresh_filename()
after having set BDS.full_open_options, because the block driver's
implementation should now be allowed to depend on BDS.full_open_options
being set correctly.
Finally, with this patch we can drop the @options parameter from
BlockDriver.bdrv_refresh_filename(); also, add a comment on this
function's purpose in block/block_int.h while touching its interface.
This completely obsoletes blklogwrite's implementation of
.bdrv_refresh_filename().
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190201192935.18394-25-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'block/null.c')
| -rw-r--r-- | block/null.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/block/null.c b/block/null.c index 858892f..1c56a0e 100644 --- a/block/null.c +++ b/block/null.c @@ -239,17 +239,23 @@ static int coroutine_fn null_co_block_status(BlockDriverState *bs, return ret; } -static void null_refresh_filename(BlockDriverState *bs, QDict *opts) +static void null_refresh_filename(BlockDriverState *bs) { - qdict_del(opts, "filename"); - - if (!qdict_size(opts)) { - snprintf(bs->exact_filename, sizeof(bs->exact_filename), "%s://", - bs->drv->format_name); + const QDictEntry *e; + + for (e = qdict_first(bs->full_open_options); e; + e = qdict_next(bs->full_open_options, e)) + { + /* These options can be ignored */ + if (strcmp(qdict_entry_key(e), "filename") && + strcmp(qdict_entry_key(e), "driver")) + { + return; + } } - qdict_put_str(opts, "driver", bs->drv->format_name); - bs->full_open_options = qobject_ref(opts); + snprintf(bs->exact_filename, sizeof(bs->exact_filename), "%s://", + bs->drv->format_name); } static const char *const null_strong_runtime_opts[] = { |