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raw_bsd: introduce "special members"

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On 08/05/13 15:03, Paolo Bonzini wrote:
>
> [...]
>
> 3) These members are special
>
>     .format_name   is the string "raw"
>     .bdrv_open     raw_open should set bs->sg to bs->file->sg and return 0
>     .bdrv_close    raw_close should do nothing
>     .bdrv_probe    raw_probe should just return 1.

v1->v2:

On 08/20/13 10:11, Kevin Wolf wrote:
> Am 16.08.2013 um 16:15 hat Laszlo Ersek geschrieben:

>> +static int raw_probe(void)
>> +{
>> +    return 1;
>> +}
>
> Maybe add a comment here like "smallest possible positive score so that
> raw is used if and only if no other block driver works".

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Laszlo Ersek
2013-08-30 15:28:52 +02:00
committed by Kevin Wolf
parent 1565262c37
commit 01dd96d8f4
1 changed files with 23 additions and 0 deletions
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block/raw_bsd.c
+23
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@@ -112,3 +112,26 @@ static TYPE raw_create(void)
{
return bdrv_create_file();
}
static const char *raw_format_name(void)
{
return "raw";
}
static int raw_open(BlockDriverState *bs)
{
bs->sg = bs->file->sg;
return 0;
}
static void raw_close(void)
{
}
static int raw_probe(void)
{
/* smallest possible positive score so that raw is used if and only if no
* other block driver works
*/
return 1;
}