From 40e8813e9c705838eee42c98de717b20851aed72 Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Sat, 20 Jan 2024 16:00:46 +0100 Subject: [PATCH] PendingReleaseNotes: add rbd_diff_iterate2 note Signed-off-by: Ilya Dryomov --- PendingReleaseNotes | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/PendingReleaseNotes b/PendingReleaseNotes index b3fa9b9990e..0de7e784507 100644 --- a/PendingReleaseNotes +++ b/PendingReleaseNotes @@ -105,6 +105,11 @@ CephFS: Disallow delegating preallocated inode ranges to clients. Config See https://docs.ceph.com/en/latest/rados/operations/balancer/ for more information. * CephFS: Full support for subvolumes and subvolume groups is now available for snap_schedule Manager module. +* RBD: When diffing against the beginning of time (`fromsnapname == NULL`) in + fast-diff mode (`whole_object == true` with `fast-diff` image feature enabled + and valid), diff-iterate is now guaranteed to execute locally if exclusive + lock is available. This brings a dramatic performance improvement for QEMU + live disk synchronization and backup use cases. >=18.0.0 -- 2.39.5