+++ /dev/null
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Fabian Ebner <f.ebner@proxmox.com>
-Date: Thu, 23 Jun 2022 14:00:05 +0200
-Subject: [PATCH] Revert "block/rbd: workaround for ceph issue #53784"
-
-This reverts commit fc176116cdea816ceb8dd969080b2b95f58edbc0 in
-preparation to revert 0347a8fd4c3faaedf119be04c197804be40a384b.
-
-Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
----
- block/rbd.c | 42 ++----------------------------------------
- 1 file changed, 2 insertions(+), 40 deletions(-)
-
-diff --git a/block/rbd.c b/block/rbd.c
-index 0cec24c86d..0a9b97aa5e 100644
---- a/block/rbd.c
-+++ b/block/rbd.c
-@@ -1324,7 +1324,6 @@ static int coroutine_fn qemu_rbd_co_block_status(BlockDriverState *bs,
- int status, r;
- RBDDiffIterateReq req = { .offs = offset };
- uint64_t features, flags;
-- uint64_t head = 0;
-
- assert(offset + bytes <= s->image_size);
-
-@@ -1352,43 +1351,7 @@ static int coroutine_fn qemu_rbd_co_block_status(BlockDriverState *bs,
- return status;
- }
-
--#if LIBRBD_VERSION_CODE < LIBRBD_VERSION(1, 17, 0)
-- /*
-- * librbd had a bug until early 2022 that affected all versions of ceph that
-- * supported fast-diff. This bug results in reporting of incorrect offsets
-- * if the offset parameter to rbd_diff_iterate2 is not object aligned.
-- * Work around this bug by rounding down the offset to object boundaries.
-- * This is OK because we call rbd_diff_iterate2 with whole_object = true.
-- * However, this workaround only works for non cloned images with default
-- * striping.
-- *
-- * See: https://tracker.ceph.com/issues/53784
-- */
--
-- /* check if RBD image has non-default striping enabled */
-- if (features & RBD_FEATURE_STRIPINGV2) {
-- return status;
-- }
--
--#pragma GCC diagnostic push
--#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
-- /*
-- * check if RBD image is a clone (= has a parent).
-- *
-- * rbd_get_parent_info is deprecated from Nautilus onwards, but the
-- * replacement rbd_get_parent is not present in Luminous and Mimic.
-- */
-- if (rbd_get_parent_info(s->image, NULL, 0, NULL, 0, NULL, 0) != -ENOENT) {
-- return status;
-- }
--#pragma GCC diagnostic pop
--
-- head = req.offs & (s->object_size - 1);
-- req.offs -= head;
-- bytes += head;
--#endif
--
-- r = rbd_diff_iterate2(s->image, NULL, req.offs, bytes, true, true,
-+ r = rbd_diff_iterate2(s->image, NULL, offset, bytes, true, true,
- qemu_rbd_diff_iterate_cb, &req);
- if (r < 0 && r != QEMU_RBD_EXIT_DIFF_ITERATE2) {
- return status;
-@@ -1407,8 +1370,7 @@ static int coroutine_fn qemu_rbd_co_block_status(BlockDriverState *bs,
- status = BDRV_BLOCK_ZERO | BDRV_BLOCK_OFFSET_VALID;
- }
-
-- assert(req.bytes > head);
-- *pnum = req.bytes - head;
-+ *pnum = req.bytes;
- return status;
- }
-