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[Qemu-block] [PATCH v4 23/32] blockdev: Separate qcow2 probe from its dr
From: |
Colin Lord |
Subject: |
[Qemu-block] [PATCH v4 23/32] blockdev: Separate qcow2 probe from its driver |
Date: |
Thu, 14 Jul 2016 15:03:19 -0400 |
Completes the separation of the qcow2 probe from the qcow2 driver. The
qcow2 probe now returns the format in addition to the score, allowing
correlation of the score and driver without the probe function being
part of the driver itself.
Signed-off-by: Colin Lord <address@hidden>
Reviewed-by: Max Reitz <address@hidden>
---
block.c | 1 +
block/qcow2-probe.c | 16 +++++++++++-----
block/qcow2.c | 1 -
include/block/probe.h | 3 ++-
4 files changed, 14 insertions(+), 7 deletions(-)
diff --git a/block.c b/block.c
index f531ad0..145be9b 100644
--- a/block.c
+++ b/block.c
@@ -67,6 +67,7 @@ static BdrvProbeFunc *format_probes[] = {
bdrv_dmg_probe,
bdrv_parallels_probe,
bdrv_qcow_probe,
+ bdrv_qcow2_probe,
};
static QTAILQ_HEAD(, BlockDriverState) graph_bdrv_states =
diff --git a/block/qcow2-probe.c b/block/qcow2-probe.c
index e5cd92c..b7a73c5 100644
--- a/block/qcow2-probe.c
+++ b/block/qcow2-probe.c
@@ -3,14 +3,20 @@
#include "block/probe.h"
#include "qcow2.h"
-int qcow2_probe(const uint8_t *buf, int buf_size, const char *filename)
+const char *bdrv_qcow2_probe(const uint8_t *buf, int buf_size,
+ const char *filename, int *score)
{
+ const char *format = "qcow2";
const QCowHeader *cow_header = (const void *)buf;
+ assert(score);
if (buf_size >= sizeof(QCowHeader) &&
be32_to_cpu(cow_header->magic) == QCOW_MAGIC &&
- be32_to_cpu(cow_header->version) >= 2)
- return 100;
- else
- return 0;
+ be32_to_cpu(cow_header->version) >= 2) {
+ *score = 100;
+ return format;
+ }
+
+ *score = 0;
+ return format;
}
diff --git a/block/qcow2.c b/block/qcow2.c
index 17521f7..2f575d1 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -3382,7 +3382,6 @@ static QemuOptsList qcow2_create_opts = {
BlockDriver bdrv_qcow2 = {
.format_name = "qcow2",
.instance_size = sizeof(BDRVQcow2State),
- .bdrv_probe = qcow2_probe,
.bdrv_open = qcow2_open,
.bdrv_close = qcow2_close,
.bdrv_reopen_prepare = qcow2_reopen_prepare,
diff --git a/include/block/probe.h b/include/block/probe.h
index e670341..1a68cef 100644
--- a/include/block/probe.h
+++ b/include/block/probe.h
@@ -1,7 +1,6 @@
#ifndef PROBE_H
#define PROBE_H
-int qcow2_probe(const uint8_t *buf, int buf_size, const char *filename);
int bdrv_qed_probe(const uint8_t *buf, int buf_size, const char *filename);
int raw_probe(const uint8_t *buf, int buf_size, const char *filename);
int vdi_probe(const uint8_t *buf, int buf_size, const char *filename);
@@ -20,5 +19,7 @@ const char *bdrv_parallels_probe(const uint8_t *buf, int
buf_size,
const char *filename, int *score);
const char *bdrv_qcow_probe(const uint8_t *buf, int buf_size,
const char *filename, int *score);
+const char *bdrv_qcow2_probe(const uint8_t *buf, int buf_size,
+ const char *filename, int *score);
#endif
--
2.5.5
- [Qemu-block] [PATCH v4 13/32] blockdev: Move vdi probe to its own file, (continued)
- [Qemu-block] [PATCH v4 13/32] blockdev: Move vdi probe to its own file, Colin Lord, 2016/07/14
- [Qemu-block] [PATCH v4 11/32] blockdev: Move qed probe to its own file, Colin Lord, 2016/07/14
- [Qemu-block] [PATCH v4 14/32] blockdev: Move vhdx probe to its own file, Colin Lord, 2016/07/14
- [Qemu-block] [PATCH v4 20/32] blockdev: Separate dmg probe from its driver, Colin Lord, 2016/07/14
- [Qemu-block] [PATCH v4 12/32] blockdev: Move raw probe to its own file, Colin Lord, 2016/07/14
- [Qemu-block] [PATCH v4 17/32] blockdev: Separate bochs probe from its driver, Colin Lord, 2016/07/14
- [Qemu-block] [PATCH v4 15/32] blockdev: Move vmdk probe to its own file, Colin Lord, 2016/07/14
- [Qemu-block] [PATCH v4 19/32] blockdev: Separate luks probe from its driver, Colin Lord, 2016/07/14
- [Qemu-block] [PATCH v4 23/32] blockdev: Separate qcow2 probe from its driver,
Colin Lord <=
- [Qemu-block] [PATCH v4 25/32] blockdev: Separate raw probe from its driver, Colin Lord, 2016/07/14
- [Qemu-block] [PATCH v4 24/32] blockdev: Separate qed probe from its driver, Colin Lord, 2016/07/14
- [Qemu-block] [PATCH v4 29/32] blockdev: Separate vpc probe from its driver, Colin Lord, 2016/07/14
- [Qemu-block] [PATCH v4 28/32] blockdev: Separate vmdk probe from its driver, Colin Lord, 2016/07/14
- [Qemu-block] [PATCH v4 21/32] blockdev: Separate parallels probe from its driver, Colin Lord, 2016/07/14
- [Qemu-block] [PATCH v4 16/32] blockdev: Move vpc probe to its own file, Colin Lord, 2016/07/14
- [Qemu-block] [PATCH v4 18/32] blockdev: Separate cloop probe from its driver, Colin Lord, 2016/07/14
- [Qemu-block] [PATCH v4 22/32] blockdev: Separate qcow probe from its driver, Colin Lord, 2016/07/14
- [Qemu-block] [PATCH v4 30/32] blockdev: Remove the .bdrv_probe field from BlockDrivers, Colin Lord, 2016/07/14
- [Qemu-block] [PATCH v4 26/32] blockdev: Separate vdi probe from its driver, Colin Lord, 2016/07/14