forked from pool/libvirt
32 lines
1.1 KiB
Diff
32 lines
1.1 KiB
Diff
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From 475b272c126d53f3985860422dc96b01b470423e Mon Sep 17 00:00:00 2001
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From: Chunyan Liu <cyliu@suse.com>
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Date: Tue, 29 Jul 2014 17:31:28 +0800
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Subject: [PATCH] blockcopy: check dst = identical device
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Check whether dst is the same device as source, if yes, report
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error and exit.
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Signed-off-by: Chunyan Liu <cyliu@suse.com>
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---
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src/qemu/qemu_driver.c | 7 +++++++
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1 file changed, 7 insertions(+)
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Index: libvirt-1.2.5/src/qemu/qemu_driver.c
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===================================================================
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--- libvirt-1.2.5.orig/src/qemu/qemu_driver.c
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+++ libvirt-1.2.5/src/qemu/qemu_driver.c
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@@ -15263,6 +15263,13 @@ qemuDomainBlockCopy(virDomainObjPtr vm,
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}
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/* Prepare the destination file. */
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+ if (STREQ_NULLABLE(realpath(disk->src->path, NULL), realpath(dest, NULL))) {
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+ virReportError(VIR_ERR_INVALID_ARG,
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+ _("destination '%s' is the same as disk '%s' source"),
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+ dest, path);
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+ goto endjob;
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+ }
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+
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if (stat(dest, &st) < 0) {
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if (errno != ENOENT) {
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virReportSystemError(errno, _("unable to stat for disk %s: %s"),
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