hugetlbfs-release-subpool-on-fill_super-failure.patch removed from -mm tree

The quilt patch titled
Subject: hugetlbfs: release subpool on fill_super failure
has been removed from the -mm tree. Its filename was
hugetlbfs-release-subpool-on-fill_super-failure.patch

This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Yichong Chen <[email protected]>
Subject: hugetlbfs: release subpool on fill_super failure
Date: Mon, 20 Jul 2026 10:18:59 +0800

hugetlbfs_fill_super() allocates a hugepage subpool when size or min_size mount options are specified. hugepage_new_subpool() may also reserve huge pages for min_size.

If root dentry creation fails after the subpool is created, the failure path frees the subpool with kfree(). This bypasses hugepage_put_subpool() and can leave min_size reservations charged.

Use hugepage_put_subpool() on the failure path, matching the normal put_super path.

---

 fs/hugetlbfs/inode.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

@@ -1419,7 +1419,8 @@ hugetlbfs_fill_super(struct super_block
 		goto out_free;
 	return 0;
 out_free:
-	kfree(sbinfo->spool);
+	if (sbinfo->spool)
+		hugepage_put_subpool(sbinfo->spool);
 	kfree(sbinfo);
 	return -ENOMEM;
 }

_

Patches currently in -mm which might be from [email protected] are