From 15c0549743e5ffaf196872ce8e2ad15e7c0bc743 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 (cherry picked from commit 40e8813e9c705838eee42c98de717b20851aed72) Conflicts: PendingReleaseNotes [ moved to >=16.2.15 section ] --- PendingReleaseNotes | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/PendingReleaseNotes b/PendingReleaseNotes index 0cb10ea998121..c02bdf04a74ce 100644 --- a/PendingReleaseNotes +++ b/PendingReleaseNotes @@ -49,6 +49,12 @@ due to being prone to false negative results. It's safer replacement is `pool_is_in_selfmanaged_snaps_mode`. +* 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. + >= 16.2.14 ---------- -- 2.39.5