[PATCH] mm: add some missing includes to mm-local headers

[Lorenzo Stoakes (ARM)]

There are a number of internal headers local to mm/ which reference
functions and data types without including the relevant headers.

mm/vma.h is a special case that intentionally does not include additional
headers, but the others are not.

This breaks tooling like clangd (which is where I noticed this), though the
build is OK due to the C files including the headers happening to include
required dependencies.

It's better to be explicit about dependencies anyway, so add the missing
includes and fix clangd as a bonus.

Signed-off-by: Lorenzo Stoakes (ARM) <ljs@xxxxxxxxxx>
---
 mm/cma.h           | 1 +
 mm/hugetlb_cma.h   | 2 ++
 mm/memcontrol-v1.h | 1 +
 mm/pgalloc-track.h | 3 +++
 mm/shuffle.h       | 2 ++
 mm/swap.h          | 1 +
 mm/vmalloc.h       | 2 ++
 7 files changed, 12 insertions(+)

diff --git a/mm/cma.h b/mm/cma.h
index c70180c36559..ab6d39898ea5 100644
--- a/mm/cma.h
+++ b/mm/cma.h
@@ -2,6 +2,7 @@
 #ifndef __MM_CMA_H__
 #define __MM_CMA_H__
 
+#include <linux/cma.h>
 #include <linux/debugfs.h>
 #include <linux/kobject.h>
 
diff --git a/mm/hugetlb_cma.h b/mm/hugetlb_cma.h
index 3aa483573d17..730b2b4965b6 100644
--- a/mm/hugetlb_cma.h
+++ b/mm/hugetlb_cma.h
@@ -2,6 +2,8 @@
 #ifndef _LINUX_HUGETLB_CMA_H
 #define _LINUX_HUGETLB_CMA_H
 
+#include <linux/hugetlb.h>
+
 #ifdef CONFIG_CMA
 void hugetlb_cma_free_frozen_folio(struct folio *folio);
 struct folio *hugetlb_cma_alloc_frozen_folio(int order, gfp_t gfp_mask,
diff --git a/mm/memcontrol-v1.h b/mm/memcontrol-v1.h
index 0f703f239c80..1e394269c613 100644
--- a/mm/memcontrol-v1.h
+++ b/mm/memcontrol-v1.h
@@ -4,6 +4,7 @@
 #define __MM_MEMCONTROL_V1_H
 
 #include <linux/cgroup-defs.h>
+#include <linux/memcontrol.h>
 
 /* Cgroup v1 and v2 common declarations */
 
diff --git a/mm/pgalloc-track.h b/mm/pgalloc-track.h
index e9e879de8649..1a6de1358a21 100644
--- a/mm/pgalloc-track.h
+++ b/mm/pgalloc-track.h
@@ -2,6 +2,9 @@
 #ifndef _LINUX_PGALLOC_TRACK_H
 #define _LINUX_PGALLOC_TRACK_H
 
+#include <linux/mm.h>
+#include <linux/pgtable.h>
+
 #if defined(CONFIG_MMU)
 static inline p4d_t *p4d_alloc_track(struct mm_struct *mm, pgd_t *pgd,
 				     unsigned long address,
diff --git a/mm/shuffle.h b/mm/shuffle.h
index 61bbcddeeee6..11bec7521ab8 100644
--- a/mm/shuffle.h
+++ b/mm/shuffle.h
@@ -2,7 +2,9 @@
 // Copyright(c) 2018 Intel Corporation. All rights reserved.
 #ifndef _MM_SHUFFLE_H
 #define _MM_SHUFFLE_H
+
 #include <linux/jump_label.h>
+#include <linux/mmzone.h>
 
 #define SHUFFLE_ORDER MAX_PAGE_ORDER
 
diff --git a/mm/swap.h b/mm/swap.h
index d077e5893a42..ec580c713204 100644
--- a/mm/swap.h
+++ b/mm/swap.h
@@ -5,6 +5,7 @@
 #include <linux/atomic.h> /* for atomic_long_t */
 #include <linux/mm.h> /* for PAGE_SHIFT */
 #include <linux/memcontrol.h> /* for mem_cgroup_swappiness() */
+#include <linux/swap.h> /* for MAX_SWAPFILES_SHIFT, struct swap_info_struct */
 
 struct mempolicy;
 struct swap_iocb;
diff --git a/mm/vmalloc.h b/mm/vmalloc.h
index dcfe30eaa80c..8866ddcff668 100644
--- a/mm/vmalloc.h
+++ b/mm/vmalloc.h
@@ -5,6 +5,8 @@
 #ifndef __MM_VMALLOC_H
 #define __MM_VMALLOC_H
 
+#include <linux/vmalloc.h>
+
 #ifdef CONFIG_MMU
 void __init vmalloc_init(void);
 int __must_check vmap_pages_range_noflush(unsigned long addr, unsigned long end,

---
base-commit: e47602c51d20a93fa1711ed896dc9480de4374d9
change-id: 20260804-fix-some-local-headers-0ebc15f34c72

Cheers,
-- 
Lorenzo Stoakes (ARM) <ljs@xxxxxxxxxx>