src: do not use `std::function` for `OnScopeLeave`

Using `std::function` adds an extra layer of indirection, and in
particular, heap allocations that are not necessary in our use case
here.

PR-URL: https://github.com/nodejs/node/pull/30134
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/large_pages/node_large_page.cc b/src/large_pages/node_large_page.cc
index 4e2f8fc441..68fa178b40 100644
--- a/src/large_pages/node_large_page.cc
+++ b/src/large_pages/node_large_page.cc
@@ -333,7 +333,7 @@ MoveTextRegionToLargePages(const text_region& r) {
     PrintSystemError(errno);
     return -1;
   }
-  OnScopeLeave munmap_on_return([nmem, size]() {
+  auto munmap_on_return = OnScopeLeave([nmem, size]() {
     if (-1 == munmap(nmem, size)) PrintSystemError(errno);
   });