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[Qemu-devel] [PATCH v5 4/4] raw: Don't open ZBDs if backend can't handle
From: |
Dmitry Fomichev |
Subject: |
[Qemu-devel] [PATCH v5 4/4] raw: Don't open ZBDs if backend can't handle them |
Date: |
Fri, 23 Aug 2019 15:49:27 -0400 |
Abort opening a zoned device as a raw file in case the chosen
block backend driver lacks proper support for this type of
storage.
Signed-off-by: Dmitry Fomichev <address@hidden>
---
block/file-posix.c | 14 ++++++++++++++
hw/block/fdc.c | 2 +-
2 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/block/file-posix.c b/block/file-posix.c
index d9f2fc5e46..090e7c4d2f 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -2884,6 +2884,20 @@ static int raw_check_perm(BlockDriverState *bs, uint64_t
perm, uint64_t shared,
goto fail;
}
}
+
+ /*
+ * If we are opening a zoned block device, check if the backend
+ * driver can properly handle such devices, abort if not.
+ */
+ if (bdrv_is_zoned(bs) &&
+ (shared & BLK_PERM_SUPPORT_ZONED) &&
+ !(perm & BLK_PERM_SUPPORT_ZONED)) {
+ error_setg(errp,
+ "block backend driver doesn't support HM zoned devices");
+ ret = -ENOTSUP;
+ goto fail;
+ }
+
return 0;
fail:
diff --git a/hw/block/fdc.c b/hw/block/fdc.c
index c5f41b3eb6..673a8b39bc 100644
--- a/hw/block/fdc.c
+++ b/hw/block/fdc.c
@@ -570,7 +570,7 @@ static void floppy_drive_realize(DeviceState *qdev, Error
**errp)
dev->conf.werror = BLOCKDEV_ON_ERROR_AUTO;
if (!blkconf_apply_backend_options(&dev->conf, read_only, false, false,
- errp)) {
+ errp)) {
return;
}
--
2.21.0
- [Qemu-devel] [PATCH v5 0/4] virtio/block: handle zoned backing devices, Dmitry Fomichev, 2019/08/23
- [Qemu-devel] [PATCH v5 4/4] raw: Don't open ZBDs if backend can't handle them,
Dmitry Fomichev <=
- [Qemu-devel] [PATCH v5 1/4] block: Add zoned device model property, Dmitry Fomichev, 2019/08/23
- [Qemu-devel] [PATCH v5 3/4] block/ide/scsi: Set BLK_PERM_SUPPORT_ZONED, Dmitry Fomichev, 2019/08/23
- [Qemu-devel] [PATCH v5 2/4] raw: Recognize zoned backing devices, Dmitry Fomichev, 2019/08/23
- Re: [Qemu-devel] [PATCH v5 0/4] virtio/block: handle zoned backing devices, no-reply, 2019/08/23
- Re: [Qemu-devel] [Qemu-block] [PATCH v5 0/4] virtio/block: handle zoned backing devices, Stefan Hajnoczi, 2019/08/28