From 483eb2f56657e8e7f419ab1a4fab8dce9ade8609 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 27 Apr 2024 20:24:20 +0200
Subject: Adding upstream version 14.2.21.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 qa/rbd/krbd_huge_image.t | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 qa/rbd/krbd_huge_image.t

(limited to 'qa/rbd/krbd_huge_image.t')

diff --git a/qa/rbd/krbd_huge_image.t b/qa/rbd/krbd_huge_image.t
new file mode 100644
index 00000000..9fff1d9d
--- /dev/null
+++ b/qa/rbd/krbd_huge_image.t
@@ -0,0 +1,41 @@
+
+  $ get_field() {
+  >     rbd info --format=json $1 | python -c "import sys, json; print json.load(sys.stdin)['$2']"
+  > }
+
+Write to first and last sectors and make sure we hit the right objects:
+
+  $ ceph osd pool create hugeimg 12 >/dev/null 2>&1
+  $ rbd pool init hugeimg
+  $ rbd create --size 4E --object-size 4K --image-feature layering hugeimg/img
+  $ DEV=$(sudo rbd map hugeimg/img)
+  $ xfs_io -c 'pwrite 0 512' $DEV >/dev/null # first sector
+  $ xfs_io -c 'pwrite 4611686018427387392 512' $DEV >/dev/null # last sector
+  $ sudo rbd unmap $DEV
+
+  $ get_field hugeimg/img size
+  4611686018427387904
+  $ get_field hugeimg/img objects
+  1125899906842624
+  $ rados -p hugeimg ls | grep $(get_field hugeimg/img block_name_prefix) | sort
+  .*\.0000000000000000 (re)
+  .*\.0003ffffffffffff (re)
+
+Dump first and last megabytes:
+
+  $ DEV=$(sudo rbd map hugeimg/img)
+  $ dd if=$DEV bs=1M count=1 status=none | hexdump
+  0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
+  *
+  0000200 0000 0000 0000 0000 0000 0000 0000 0000
+  *
+  0100000
+  $ dd if=$DEV bs=1M skip=4398046511103 status=none | hexdump
+  0000000 0000 0000 0000 0000 0000 0000 0000 0000
+  *
+  00ffe00 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
+  *
+  0100000
+  $ sudo rbd unmap $DEV
+
+  $ ceph osd pool delete hugeimg hugeimg --yes-i-really-really-mean-it >/dev/null 2>&1
-- 
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