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From: Alexandre Derumier via pve-devel <pve-devel@lists.proxmox.com>
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Subject: [pve-devel] [PATCH pve-storage] qcow2: resize: add preallocation
support
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From: Alexandre Derumier <alexandre.derumier@groupe-cyllene.com>
To: pve-devel@lists.proxmox.com
Subject: [PATCH pve-storage] qcow2: resize: add preallocation support
Date: Thu, 19 Dec 2024 17:18:16 +0100
Message-Id: <20241219161816.952295-1-alexandre.derumier@groupe-cyllene.com>
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Seem that we totally forgot to add it, it's available since 2017
https://www.mail-archive.com/qemu-devel@nongnu.org/msg436979.html
---
src/PVE/Storage/Plugin.pm | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/PVE/Storage/Plugin.pm b/src/PVE/Storage/Plugin.pm
index 6a6a804..d0ce3ae 100644
--- a/src/PVE/Storage/Plugin.pm
+++ b/src/PVE/Storage/Plugin.pm
@@ -1166,7 +1166,9 @@ sub volume_resize {
my $format = ($class->parse_volname($volname))[6];
- my $cmd = ['/usr/bin/qemu-img', 'resize', '-f', $format, $path , $size];
+ my $prealloc_opt = preallocation_cmd_option($scfg, $format);
+
+ my $cmd = ['/usr/bin/qemu-img', 'resize', "--$prealloc_opt", '-f', $format, $path , $size];
run_command($cmd, timeout => 10);
--
2.39.5
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