Merge pull request ceph#58357 from xxhdx1985126/wip-seastore-btree-interruptible-bug-fix

crimson/os/seastore/btree: interrupt transactions immediately when getting children

Reviewed-by: Yingxin Cheng <[email protected]>

Author: cyx1231st

src/crimson/os/seastore/btree/fixed_kv_btree.h

@@ -1493,9 +1493,9 @@ class FixedKVBtree {
     // checking the lba child must be atomic with creating
     // and linking the absent child
     if (v.has_child()) {
-      return v.get_child_fut().safe_then(
-        [on_found=std::move(on_found), node_iter, c,
-        parent_entry](auto child) mutable {
+      return trans_intr::make_interruptible(std::move(v.get_child_fut())
+      ).si_then([on_found=std::move(on_found), node_iter, c,
+                parent_entry](auto child) {
         LOG_PREFIX(FixedKVBtree::lookup_internal_level);
         SUBTRACET(seastore_fixedkv_tree,
           "got child on {}, pos: {}, res: {}",
@@ -1563,9 +1563,9 @@ class FixedKVBtree {
     // checking the lba child must be atomic with creating
     // and linking the absent child
     if (v.has_child()) {
-      return v.get_child_fut().safe_then(
-        [on_found=std::move(on_found), node_iter, c,
-        parent_entry](auto child) mutable {
+      return trans_intr::make_interruptible(std::move(v.get_child_fut())
+      ).si_then([on_found=std::move(on_found), node_iter, c,
+                parent_entry](auto child) {
         LOG_PREFIX(FixedKVBtree::lookup_leaf);
         SUBTRACET(seastore_fixedkv_tree,
           "got child on {}, pos: {}, res: {}",
@@ -2118,9 +2118,9 @@ class FixedKVBtree {
     // checking the lba child must be atomic with creating
     // and linking the absent child
     if (v.has_child()) {
-      return v.get_child_fut().safe_then(
-        [do_merge=std::move(do_merge), &pos,
-        donor_iter, donor_is_left, c, parent_pos](auto child) mutable {
+      return trans_intr::make_interruptible(std::move(v.get_child_fut())
+      ).si_then([do_merge=std::move(do_merge), &pos,
+                donor_iter, donor_is_left, c, parent_pos](auto child) {
         LOG_PREFIX(FixedKVBtree::merge_level);
         SUBTRACET(seastore_fixedkv_tree,
           "got child on {}, pos: {}, res: {}",