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=== Description (from pull-request) ===
Fixes https://discuss.linuxcontainers.org/t/high-load-when-launching-container/6603/6
Signed-off-by: Thomas Parrott <thomas.parr...@canonical.com>
From 432ac48f1cd0d2d8052b86774eba3396cb6c0aa5 Mon Sep 17 00:00:00 2001
From: Thomas Parrott <thomas.parr...@canonical.com>
Date: Mon, 27 Jan 2020 10:13:50 +0000
Subject: [PATCH] lxd/storage/backend/lxd: Only detect volume.block.filesystem
changes on block backed pool FS volumes
Signed-off-by: Thomas Parrott <thomas.parr...@canonical.com>
---
lxd/storage/backend_lxd.go | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lxd/storage/backend_lxd.go b/lxd/storage/backend_lxd.go
index 43d5a6b273..82180a3b88 100644
--- a/lxd/storage/backend_lxd.go
+++ b/lxd/storage/backend_lxd.go
@@ -1937,7 +1937,7 @@ func (b *lxdBackend) EnsureImage(fingerprint string, op
*operations.Operation) e
// If an existing DB row was found, check if filesystem is the same as
the current pool's filesystem.
// If not we need to delete the existing cached image volume and
re-create using new filesystem.
if imgDBVol != nil && contentType == drivers.ContentTypeFS {
- if imgDBVol.Config["block.filesystem"] !=
b.poolBlockFilesystem() {
+ if b.Driver().Info().BlockBacking &&
imgDBVol.Config["block.filesystem"] != b.poolBlockFilesystem() {
logger.Debug("Filesystem of pool has changed since
cached image volume created, regenerating image volume")
err = b.DeleteImage(fingerprint, op)
if err != nil {
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