qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Qemu-devel] [PATCH v3 4/4] raw: Don't open ZBDs if backend can't handle


From: Dmitry Fomichev
Subject: [Qemu-devel] [PATCH v3 4/4] raw: Don't open ZBDs if backend can't handle them
Date: Tue, 23 Jul 2019 18:19:40 -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 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/block/file-posix.c b/block/file-posix.c
index e307cab7a4..507dba98c5 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -2870,6 +2870,20 @@ 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




reply via email to

[Prev in Thread] Current Thread [Next in Thread]