From: Max Reitz <mreitz@redhat.com>
To: qemu-block@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>, Alberto Garcia <berto@igalia.com>,
qemu-devel@nongnu.org, Max Reitz <mreitz@redhat.com>
Subject: [PATCH for-4.2 1/2] qcow2: Fix QCOW2_COMPRESSED_SECTOR_MASK
Date: Mon, 28 Oct 2019 17:18:40 +0100 [thread overview]
Message-ID: <20191028161841.1198-2-mreitz@redhat.com> (raw)
In-Reply-To: <20191028161841.1198-1-mreitz@redhat.com>
Masks for L2 table entries should have 64 bit.
Fixes: b6c246942b14d3e0dec46a6c5868ed84e7dbea19
Buglink: https://bugs.launchpad.net/qemu/+bug/1850000
Cc: qemu-stable@nongnu.org
Signed-off-by: Max Reitz <mreitz@redhat.com>
---
block/qcow2.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/qcow2.h b/block/qcow2.h
index 601c2e4c82..0942126232 100644
--- a/block/qcow2.h
+++ b/block/qcow2.h
@@ -83,7 +83,7 @@
/* Defined in the qcow2 spec (compressed cluster descriptor) */
#define QCOW2_COMPRESSED_SECTOR_SIZE 512U
-#define QCOW2_COMPRESSED_SECTOR_MASK (~(QCOW2_COMPRESSED_SECTOR_SIZE - 1))
+#define QCOW2_COMPRESSED_SECTOR_MASK (~(QCOW2_COMPRESSED_SECTOR_SIZE - 1ULL))
/* Must be at least 2 to cover COW */
#define MIN_L2_CACHE_SIZE 2 /* cache entries */
--
2.21.0
next prev parent reply other threads:[~2019-10-28 17:49 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-28 16:18 [PATCH for-4.2 0/2] qcow2: Fix QCOW2_COMPRESSED_SECTOR_MASK Max Reitz
2019-10-28 16:18 ` Max Reitz [this message]
2019-10-28 16:18 ` [PATCH for-4.2 2/2] iotests: Add test for 4G+ compressed qcow2 write Max Reitz
2019-10-28 22:36 ` [PATCH for-4.2 0/2] qcow2: Fix QCOW2_COMPRESSED_SECTOR_MASK Alberto Garcia
2019-11-06 11:19 ` Max Reitz
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