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qemu-kvm/SOURCES/kvm-block-blkio-move-blkio_...

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From 458c33c9f19ed01beeb9b2b494ce6ed10d2ed4ac Mon Sep 17 00:00:00 2001
From: Stefano Garzarella <sgarzare@redhat.com>
Date: Thu, 27 Jul 2023 18:10:17 +0200
Subject: [PATCH 03/14] block/blkio: move blkio_connect() in the drivers
functions
RH-Author: Stefano Garzarella <sgarzare@redhat.com>
RH-MergeRequest: 194: block/blkio: backport latest fixes for virtio-blk-* drivers
RH-Bugzilla: 2225354 2225439
RH-Acked-by: Hanna Czenczek <hreitz@redhat.com>
RH-Acked-by: Alberto Faria <None>
RH-Commit: [3/6] c356108d7dfe1ba2098c094f8d12b6e40853560c (sgarzarella/qemu-kvm-c-9-s)
This is in preparation for the next patch, where for virtio-blk
drivers we need to handle the failure of blkio_connect().
Let's also rename the *_open() functions to *_connect() to make
the code reflect the changes applied.
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-id: 20230727161020.84213-2-sgarzare@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
(cherry picked from commit 69785d66ae1ec43f77fc65109a21721992bead9f)
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
---
block/blkio.c | 67 ++++++++++++++++++++++++++++++---------------------
1 file changed, 40 insertions(+), 27 deletions(-)
diff --git a/block/blkio.c b/block/blkio.c
index 5a82c6cb1a..85d1eed5fb 100644
--- a/block/blkio.c
+++ b/block/blkio.c
@@ -602,8 +602,8 @@ static void blkio_unregister_buf(BlockDriverState *bs, void *host, size_t size)
}
}
-static int blkio_io_uring_open(BlockDriverState *bs, QDict *options, int flags,
- Error **errp)
+static int blkio_io_uring_connect(BlockDriverState *bs, QDict *options,
+ int flags, Error **errp)
{
const char *filename = qdict_get_str(options, "filename");
BDRVBlkioState *s = bs->opaque;
@@ -626,11 +626,18 @@ static int blkio_io_uring_open(BlockDriverState *bs, QDict *options, int flags,
}
}
+ ret = blkio_connect(s->blkio);
+ if (ret < 0) {
+ error_setg_errno(errp, -ret, "blkio_connect failed: %s",
+ blkio_get_error_msg());
+ return ret;
+ }
+
return 0;
}
-static int blkio_nvme_io_uring(BlockDriverState *bs, QDict *options, int flags,
- Error **errp)
+static int blkio_nvme_io_uring_connect(BlockDriverState *bs, QDict *options,
+ int flags, Error **errp)
{
const char *path = qdict_get_try_str(options, "path");
BDRVBlkioState *s = bs->opaque;
@@ -654,11 +661,18 @@ static int blkio_nvme_io_uring(BlockDriverState *bs, QDict *options, int flags,
return -EINVAL;
}
+ ret = blkio_connect(s->blkio);
+ if (ret < 0) {
+ error_setg_errno(errp, -ret, "blkio_connect failed: %s",
+ blkio_get_error_msg());
+ return ret;
+ }
+
return 0;
}
-static int blkio_virtio_blk_common_open(BlockDriverState *bs,
- QDict *options, int flags, Error **errp)
+static int blkio_virtio_blk_connect(BlockDriverState *bs, QDict *options,
+ int flags, Error **errp)
{
const char *path = qdict_get_try_str(options, "path");
BDRVBlkioState *s = bs->opaque;
@@ -717,6 +731,13 @@ static int blkio_virtio_blk_common_open(BlockDriverState *bs,
}
}
+ ret = blkio_connect(s->blkio);
+ if (ret < 0) {
+ error_setg_errno(errp, -ret, "blkio_connect failed: %s",
+ blkio_get_error_msg());
+ return ret;
+ }
+
qdict_del(options, "path");
return 0;
@@ -736,24 +757,6 @@ static int blkio_file_open(BlockDriverState *bs, QDict *options, int flags,
return ret;
}
- if (strcmp(blkio_driver, "io_uring") == 0) {
- ret = blkio_io_uring_open(bs, options, flags, errp);
- } else if (strcmp(blkio_driver, "nvme-io_uring") == 0) {
- ret = blkio_nvme_io_uring(bs, options, flags, errp);
- } else if (strcmp(blkio_driver, "virtio-blk-vfio-pci") == 0) {
- ret = blkio_virtio_blk_common_open(bs, options, flags, errp);
- } else if (strcmp(blkio_driver, "virtio-blk-vhost-user") == 0) {
- ret = blkio_virtio_blk_common_open(bs, options, flags, errp);
- } else if (strcmp(blkio_driver, "virtio-blk-vhost-vdpa") == 0) {
- ret = blkio_virtio_blk_common_open(bs, options, flags, errp);
- } else {
- g_assert_not_reached();
- }
- if (ret < 0) {
- blkio_destroy(&s->blkio);
- return ret;
- }
-
if (!(flags & BDRV_O_RDWR)) {
ret = blkio_set_bool(s->blkio, "read-only", true);
if (ret < 0) {
@@ -764,10 +767,20 @@ static int blkio_file_open(BlockDriverState *bs, QDict *options, int flags,
}
}
- ret = blkio_connect(s->blkio);
+ if (strcmp(blkio_driver, "io_uring") == 0) {
+ ret = blkio_io_uring_connect(bs, options, flags, errp);
+ } else if (strcmp(blkio_driver, "nvme-io_uring") == 0) {
+ ret = blkio_nvme_io_uring_connect(bs, options, flags, errp);
+ } else if (strcmp(blkio_driver, "virtio-blk-vfio-pci") == 0) {
+ ret = blkio_virtio_blk_connect(bs, options, flags, errp);
+ } else if (strcmp(blkio_driver, "virtio-blk-vhost-user") == 0) {
+ ret = blkio_virtio_blk_connect(bs, options, flags, errp);
+ } else if (strcmp(blkio_driver, "virtio-blk-vhost-vdpa") == 0) {
+ ret = blkio_virtio_blk_connect(bs, options, flags, errp);
+ } else {
+ g_assert_not_reached();
+ }
if (ret < 0) {
- error_setg_errno(errp, -ret, "blkio_connect failed: %s",
- blkio_get_error_msg());
blkio_destroy(&s->blkio);
return ret;
}
--
2.39.3