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[Qemu-devel] [PATCH v3 23/32] blockdev: Separate qcow2 probe from its dr
From: |
Colin Lord |
Subject: |
[Qemu-devel] [PATCH v3 23/32] blockdev: Separate qcow2 probe from its driver |
Date: |
Tue, 5 Jul 2016 11:24:23 -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>
---
block.c | 1 +
block/probe/qcow2.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 236e562..b4e347a 100644
--- a/block.c
+++ b/block.c
@@ -67,6 +67,7 @@ static BdrvProbeFunc *format_probes[] = {
dmg_probe,
parallels_probe,
qcow_probe,
+ qcow2_probe,
};
static QTAILQ_HEAD(, BlockDriverState) graph_bdrv_states =
diff --git a/block/probe/qcow2.c b/block/probe/qcow2.c
index 56f4e82..bd351e0 100644
--- a/block/probe/qcow2.c
+++ b/block/probe/qcow2.c
@@ -3,14 +3,20 @@
#include "block/probe.h"
#include "block/qcow2.h"
-int qcow2_probe(const uint8_t *buf, int buf_size, const char *filename)
+const char *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 55639eb..bc2da36 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -3336,7 +3336,6 @@ 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 3aeab2d..222185b 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 *parallels_probe(const uint8_t *buf, int buf_size,
const char *filename, int *score);
const char *qcow_probe(const uint8_t *buf, int buf_size, const char *filename,
int *score);
+const char *qcow2_probe(const uint8_t *buf, int buf_size, const char *filename,
+ int *score);
#endif
--
2.5.5
- [Qemu-devel] [PATCH v3 11/32] blockdev: Move qed probe to its own file, (continued)
- [Qemu-devel] [PATCH v3 11/32] blockdev: Move qed probe to its own file, Colin Lord, 2016/07/05
- [Qemu-devel] [PATCH v3 28/32] blockdev: Separate vmdk probe from its driver, Colin Lord, 2016/07/05
- [Qemu-devel] [PATCH v3 24/32] blockdev: Separate qed probe from its driver, Colin Lord, 2016/07/05
- [Qemu-devel] [PATCH v3 19/32] blockdev: Separate luks probe from its driver, Colin Lord, 2016/07/05
- [Qemu-devel] [PATCH v3 14/32] blockdev: Move vhdx probe to its own file, Colin Lord, 2016/07/05
- [Qemu-devel] [PATCH v3 23/32] blockdev: Separate qcow2 probe from its driver,
Colin Lord <=
- [Qemu-devel] [PATCH v3 26/32] blockdev: Separate vdi probe from its driver, Colin Lord, 2016/07/05
- [Qemu-devel] [PATCH v3 29/32] blockdev: Separate vpc probe from its driver, Colin Lord, 2016/07/05
- [Qemu-devel] [PATCH v3 31/32] blockdev: Separate out bdrv_probe_device functions, Colin Lord, 2016/07/05
- [Qemu-devel] [PATCH v3 30/32] blockdev: Remove the .bdrv_probe field from BlockDrivers, Colin Lord, 2016/07/05
- [Qemu-devel] [PATCH v3 32/32] blockdev: Remove bdrv_probe_device field from BlockDriver, Colin Lord, 2016/07/05