From: Dmitry Fomichev <dmitry.fomichev@wdc.com> To: Paolo Bonzini <pbonzini@redhat.com>, Kevin Wolf <kwolf@redhat.com>, Max Reitz <mreitz@redhat.com>, "Michael S . Tsirkin" <mst@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, John Snow <jsnow@redhat.com> Cc: Dmitry Fomichev <dmitry.fomichev@wdc.com>, Alistair Francis <alistair.francis@wdc.com>, qemu-devel@nongnu.org, qemu-block@nongnu.org Subject: [Qemu-devel] [PATCH v4 4/4] raw: Don't open ZBDs if backend can't handle them Date: Fri, 23 Aug 2019 15:22:26 -0400 Message-ID: <20190823192226.21154-5-dmitry.fomichev@wdc.com> (raw) In-Reply-To: <20190823192226.21154-1-dmitry.fomichev@wdc.com> 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 <dmitry.fomichev@wdc.com> --- block/file-posix.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) 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: -- 2.21.0
next prev parent reply index Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-08-23 19:22 [Qemu-devel] [PATCH v4 0/4] virtio/block: handle zoned backing devices Dmitry Fomichev 2019-08-23 19:22 ` [Qemu-devel] [PATCH v4 1/4] block: Add zoned device model property Dmitry Fomichev 2019-08-23 19:22 ` [Qemu-devel] [PATCH v4 2/4] raw: Recognize zoned backing devices Dmitry Fomichev 2019-08-23 19:22 ` [Qemu-devel] [PATCH v4 3/4] block/ide/scsi: Set BLK_PERM_SUPPORT_ZONED Dmitry Fomichev 2019-08-23 19:22 ` Dmitry Fomichev [this message] 2019-08-23 19:52 ` [Qemu-devel] [PATCH v4 0/4] virtio/block: handle zoned backing devices no-reply
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