|
 |
ae23c9 |
From 425f93585b5a8f45198e91acce68bc0e921c0bf5 Mon Sep 17 00:00:00 2001
|
|
|
ae23c9 |
From: Max Reitz <mreitz@redhat.com>
|
|
|
ae23c9 |
Date: Mon, 18 Jun 2018 18:00:54 +0200
|
|
|
ae23c9 |
Subject: [PATCH 057/268] qcow2: Do not mark inactive images corrupt
|
|
|
ae23c9 |
|
|
|
ae23c9 |
RH-Author: Max Reitz <mreitz@redhat.com>
|
|
|
ae23c9 |
Message-id: <20180618180055.22739-3-mreitz@redhat.com>
|
|
|
ae23c9 |
Patchwork-id: 80793
|
|
|
ae23c9 |
O-Subject: [RHV-7.6 qemu-kvm-rhev PATCH 2/3] qcow2: Do not mark inactive images corrupt
|
|
|
ae23c9 |
Bugzilla: 1588039
|
|
|
ae23c9 |
RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
|
|
|
ae23c9 |
RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
|
|
|
ae23c9 |
RH-Acked-by: John Snow <jsnow@redhat.com>
|
|
|
ae23c9 |
|
|
|
ae23c9 |
When signaling a corruption on a read-only image, qcow2 already makes
|
|
|
ae23c9 |
fatal events non-fatal (i.e., they will not result in the image being
|
|
|
ae23c9 |
closed, and the image header's corrupt flag will not be set). This is
|
|
|
ae23c9 |
necessary because we cannot set the corrupt flag on read-only images,
|
|
|
ae23c9 |
and it is possible because further corruption of read-only images is
|
|
|
ae23c9 |
impossible.
|
|
|
ae23c9 |
|
|
|
ae23c9 |
Inactive images are effectively read-only, too, so we should do the same
|
|
|
ae23c9 |
for them. bdrv_is_writable() can tell us whether an image can actually
|
|
|
ae23c9 |
be written to, so use its result instead of !bs->read_only.
|
|
|
ae23c9 |
|
|
|
ae23c9 |
(Otherwise, the assert(!(bs->open_flags & BDRV_O_INACTIVE)) in
|
|
|
ae23c9 |
bdrv_co_pwritev() will fail, crashing qemu.)
|
|
|
ae23c9 |
|
|
|
ae23c9 |
Cc: qemu-stable@nongnu.org
|
|
|
ae23c9 |
Signed-off-by: Max Reitz <mreitz@redhat.com>
|
|
|
ae23c9 |
Message-id: 20180606193702.7113-3-mreitz@redhat.com
|
|
|
ae23c9 |
Reviewed-by: John Snow <jsnow@redhat.com>
|
|
|
ae23c9 |
Reviewed-by: Jeff Cody <jcody@redhat.com>
|
|
|
ae23c9 |
Signed-off-by: Max Reitz <mreitz@redhat.com>
|
|
|
ae23c9 |
(cherry picked from commit ddf3b47ef4b5ed0bf6558d4c2c8ae130b8d8a580)
|
|
|
ae23c9 |
Signed-off-by: Max Reitz <mreitz@redhat.com>
|
|
|
ae23c9 |
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
|
|
|
ae23c9 |
---
|
|
|
ae23c9 |
block/qcow2.c | 2 +-
|
|
|
ae23c9 |
1 file changed, 1 insertion(+), 1 deletion(-)
|
|
|
ae23c9 |
|
|
|
ae23c9 |
diff --git a/block/qcow2.c b/block/qcow2.c
|
|
|
ae23c9 |
index 35842c5..26a6a7f 100644
|
|
|
ae23c9 |
--- a/block/qcow2.c
|
|
|
ae23c9 |
+++ b/block/qcow2.c
|
|
|
ae23c9 |
@@ -4383,7 +4383,7 @@ void qcow2_signal_corruption(BlockDriverState *bs, bool fatal, int64_t offset,
|
|
|
ae23c9 |
char *message;
|
|
|
ae23c9 |
va_list ap;
|
|
|
ae23c9 |
|
|
|
ae23c9 |
- fatal = fatal && !bs->read_only;
|
|
|
ae23c9 |
+ fatal = fatal && bdrv_is_writable(bs);
|
|
|
ae23c9 |
|
|
|
ae23c9 |
if (s->signaled_corruption &&
|
|
|
ae23c9 |
(!fatal || (s->incompatible_features & QCOW2_INCOMPAT_CORRUPT)))
|
|
|
ae23c9 |
--
|
|
|
ae23c9 |
1.8.3.1
|
|
|
ae23c9 |
|