From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33332) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bKSDb-0006Cn-He for qemu-devel@nongnu.org; Tue, 05 Jul 2016 11:25:00 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bKSDa-00009q-FV for qemu-devel@nongnu.org; Tue, 05 Jul 2016 11:24:59 -0400 From: Colin Lord Date: Tue, 5 Jul 2016 11:24:23 -0400 Message-Id: <1467732272-23368-24-git-send-email-clord@redhat.com> In-Reply-To: <1467732272-23368-1-git-send-email-clord@redhat.com> References: <1467732272-23368-1-git-send-email-clord@redhat.com> Subject: [Qemu-devel] [PATCH v3 23/32] blockdev: Separate qcow2 probe from its driver List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: kwolf@redhat.com, qemu-block@nongnu.org, mreitz@redhat.com, Colin Lord 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 --- 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