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authorLaszlo Ersek <lersek@redhat.com>2013-08-21 12:41:20 +0200
committerKevin Wolf <kwolf@redhat.com>2013-08-30 15:28:52 +0200
commit01dd96d8f4f253ee29b4e0362a73c5f43bdc0b18 (patch)
tree26260df77cbdab88a508141ac7e393e28df23a4e
parent1565262c370195f1d7781d98f78fa002ab16b385 (diff)
raw_bsd: introduce "special members"
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>
-rw-r--r--block/raw_bsd.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/block/raw_bsd.c b/block/raw_bsd.c
index 5bcbe71c00..b1d7209b7c 100644
--- a/block/raw_bsd.c
+++ b/block/raw_bsd.c
@@ -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;
+}