From: Naphtali Sprei <nsprei@redhat.com>
To: qemu-devel@nongnu.org
Cc: Naphtali Sprei <nsprei@redhat.com>
Subject: [Qemu-devel] [PATCH 0/4] block: more read-only changes, related to backing files
Date: Wed, 3 Feb 2010 20:32:24 +0200 [thread overview]
Message-ID: <1265221948-12613-1-git-send-email-nsprei@redhat.com> (raw)
The read-only changes broke qemu-img create with read-only base image
These changes fix it.
It also make things a little safer, opening the backing file for read-only,
upgrading to read-write only for commit, and back to read-only when done.
Naphtali Sprei (4):
Add open_flags to BlockDriverState Will be used later
qemu-img: Fix qemu-img can't create qcow image based on read-only
image
Block: readonly changes
Open backing file read-only also for snapshot mode
block.c | 57 +++++++++++++++++++++++++++++++++++++++++++++++++--------
block_int.h | 2 ++
qemu-img.c | 15 ++++++++++-----
3 files changed, 61 insertions(+), 13 deletions(-)
next reply other threads:[~2010-02-03 18:32 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-03 18:32 Naphtali Sprei [this message]
2010-02-03 18:32 ` [Qemu-devel] [PATCH 1/4] Add open_flags to BlockDriverState Will be used later Naphtali Sprei
2010-02-03 18:32 ` [Qemu-devel] [PATCH 2/4] qemu-img: Fix qemu-img can't create qcow image based on read-only image Naphtali Sprei
2010-02-03 18:32 ` [Qemu-devel] [PATCH 3/4] Block: readonly changes Naphtali Sprei
2010-02-03 18:32 ` [Qemu-devel] [PATCH 4/4] Open backing file read-only also for snapshot mode Naphtali Sprei
2010-02-03 21:06 ` [Qemu-devel] [PATCH 3/4] Block: readonly changes Jamie Lokier
2010-02-04 9:36 ` Naphtali Sprei
2010-02-04 10:44 ` Kevin Wolf
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