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block: Make essential BlockDriver objects public

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There are some block drivers which are essential to QEMU and may not be
removed: These are raw, file and qcow2 (as the default non-raw format).
Make their BlockDriver objects public so they can be directly referenced
throughout the block layer without needing to call bdrv_find_format()
and having to deal with an error at runtime, while the real problem
occurred during linking (where raw, file or qcow2 were not linked into
qemu).

Cc: qemu-stable@nongnu.org
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2014-12-02 18:32:41 +01:00 • committed by Kevin Wolf
parent b89689f5b2
commit 5f535a941e
5 changed files with 12 additions and 4 deletions
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2
block/raw_bsd.c
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@ -235,7 +235,7 @@ static int raw_probe(const uint8_t *buf, int buf_size, const char *filename)
return 1;
}
static BlockDriver bdrv_raw = {
BlockDriver bdrv_raw = {
.format_name = "raw",
.bdrv_probe = &raw_probe,
.bdrv_reopen_prepare = &raw_reopen_prepare,