From: Meijing Zhao <zhaomeijing@lixiang.com>

Commit 7d163a75f821 ("memblock: make HugeTLB bootmem allocation work
with KHO") added MEMBLOCK_RSRV_HUGETLB but did not add the corresponding
entry to flagname[]. As a result, memblock debugfs cannot report the
flag by name.

Add the missing RSV_HUGETLB entry.

Fixes: 7d163a75f821 ("memblock: make HugeTLB bootmem allocation work with KHO")
Signed-off-by: Meijing Zhao <zhaomeijing@lixiang.com>
Signed-off-by: Wandun Chen <chenwandun@lixiang.com>
Link: https://lore.kernel.org/lkml/20260821020910.3428585-2-zhaomeijing100@gmail.com/

---
v1 -> v2:
Split out from the reducing vmcore size series[1], per Mike's suggestion.
[1] https://lore.kernel.org/lkml/178936321614.3691424.10386784926753862087.b4-review@b4/
---
 mm/memblock.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/memblock.c b/mm/memblock.c
index 31961ed628b0..f51811db118a 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -2874,6 +2874,7 @@ static const char * const flagname[] = {
 	[ilog2(MEMBLOCK_RSRV_NOINIT)] = "RSV_NIT",
 	[ilog2(MEMBLOCK_RSRV_KERN)] = "RSV_KERN",
 	[ilog2(MEMBLOCK_KHO_SCRATCH)] = "KHO_SCRATCH",
+	[ilog2(MEMBLOCK_RSRV_HUGETLB)] = "RSV_HUGETLB",
 };
 
 static int memblock_debug_show(struct seq_file *m, void *private)
-- 
2.43.0

On Tue, 15 Sep 2026 20:46:41 +0800, Wandun Chen wrote:
> mm: memblock: add missing HugeTLB flag name

Applied to fixes branch of memblock.git tree, thanks!

[1/1] mm: memblock: add missing HugeTLB flag name
      commit: ba13f1f32d96d7ce9069ae4f32404ecde8da89c4

tree: https://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
branch: fixes

--
Sincerely yours,
Mike.