treewide: include linux/pgalloc.h instead of asm/pgalloc.h

For now, including <asm/pgalloc.h> instead of <linux/pgalloc.h> is
technically fine unless the .c file calls p*d_populate_kernel() helper
functions.

But it is a better practice to always include <linux/pgalloc.h>.  Include
<linux/pgalloc.h> instead of <asm/pgalloc.h> outside arch/.

Link: https://lkml.kernel.org/r/20251024113047.119058-3-harry.yoo@oracle.com
Signed-off-by: Harry Yoo <harry.yoo@oracle.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

drivers/firmware/efi/arm-runtime.c

@@ -12,18 +12,18 @@
 #include <linux/io.h>
 #include <linux/memblock.h>
 #include <linux/mm_types.h>
+#include <linux/pgalloc.h>
+#include <linux/pgtable.h>
 #include <linux/preempt.h>
 #include <linux/rbtree.h>
 #include <linux/rwsem.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
-#include <linux/pgtable.h>
 
 #include <asm/cacheflush.h>
 #include <asm/efi.h>
 #include <asm/mmu.h>
-#include <asm/pgalloc.h>
 
 #if defined(CONFIG_PTDUMP_DEBUGFS) || defined(CONFIG_ARM_PTDUMP_DEBUGFS)
 #include <asm/ptdump.h>

drivers/firmware/efi/riscv-runtime.c

@@ -14,18 +14,18 @@
 #include <linux/io.h>
 #include <linux/memblock.h>
 #include <linux/mm_types.h>
+#include <linux/pgalloc.h>
+#include <linux/pgtable.h>
 #include <linux/preempt.h>
 #include <linux/rbtree.h>
 #include <linux/rwsem.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
-#include <linux/pgtable.h>
 
 #include <asm/cacheflush.h>
 #include <asm/efi.h>
 #include <asm/mmu.h>
-#include <asm/pgalloc.h>
 
 static bool __init efi_virtmap_init(void)
 {

drivers/s390/char/sclp_sd.c

@@ -17,8 +17,7 @@
 #include <linux/vmalloc.h>
 #include <linux/async.h>
 #include <linux/mutex.h>
-
-#include <asm/pgalloc.h>
+#include <linux/pgalloc.h>
 
 #include "sclp.h"
 

fs/dax.c

@@ -24,7 +24,7 @@
 #include <linux/mmu_notifier.h>
 #include <linux/iomap.h>
 #include <linux/rmap.h>
-#include <asm/pgalloc.h>
+#include <linux/pgalloc.h>
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/fs_dax.h>

kernel/fork.c

@@ -106,9 +106,9 @@
 #include <linux/pidfs.h>
 #include <linux/tick.h>
 #include <linux/unwind_deferred.h>
-
-#include <asm/pgalloc.h>
+#include <linux/pgalloc.h>
 #include <linux/uaccess.h>
+
 #include <asm/mmu_context.h>
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>

mm/debug_vm_pgtable.c

@@ -30,9 +30,9 @@
 #include <linux/sched/mm.h>
 #include <linux/io.h>
 #include <linux/vmalloc.h>
+#include <linux/pgalloc.h>
 
 #include <asm/cacheflush.h>
-#include <asm/pgalloc.h>
 #include <asm/tlbflush.h>
 
 /*

mm/filemap.c

@@ -48,7 +48,8 @@
 #include <linux/rcupdate_wait.h>
 #include <linux/sched/mm.h>
 #include <linux/sysctl.h>
-#include <asm/pgalloc.h>
+#include <linux/pgalloc.h>
+
 #include <asm/tlbflush.h>
 #include "internal.h"
 

mm/huge_memory.c

@@ -37,11 +37,11 @@
 #include <linux/sched/sysctl.h>
 #include <linux/memory-tiers.h>
 #include <linux/compat.h>
+#include <linux/pgalloc.h>
 #include <linux/pgalloc_tag.h>
 #include <linux/pagewalk.h>
 
 #include <asm/tlb.h>
-#include <asm/pgalloc.h>
 #include "internal.h"
 #include "swap.h"
 

mm/hugetlb.c

@@ -39,9 +39,9 @@
 #include <linux/memory.h>
 #include <linux/mm_inline.h>
 #include <linux/padata.h>
+#include <linux/pgalloc.h>
 
 #include <asm/page.h>
-#include <asm/pgalloc.h>
 #include <asm/tlb.h>
 #include <asm/setup.h>
 

mm/hugetlb_vmemmap.c

@@ -15,7 +15,8 @@
 #include <linux/bootmem_info.h>
 #include <linux/mmdebug.h>
 #include <linux/pagewalk.h>
-#include <asm/pgalloc.h>
+#include <linux/pgalloc.h>
+
 #include <asm/tlbflush.h>
 #include "hugetlb_vmemmap.h"
 

mm/khugepaged.c

@@ -21,9 +21,9 @@
 #include <linux/shmem_fs.h>
 #include <linux/dax.h>
 #include <linux/ksm.h>
+#include <linux/pgalloc.h>
 
 #include <asm/tlb.h>
-#include <asm/pgalloc.h>
 #include "internal.h"
 #include "mm_slot.h"
 

mm/memory.c

@@ -76,13 +76,13 @@
 #include <linux/ptrace.h>
 #include <linux/vmalloc.h>
 #include <linux/sched/sysctl.h>
+#include <linux/pgalloc.h>
+#include <linux/uaccess.h>
 
 #include <trace/events/kmem.h>
 
 #include <asm/io.h>
 #include <asm/mmu_context.h>
-#include <asm/pgalloc.h>
-#include <linux/uaccess.h>
 #include <asm/tlb.h>
 #include <asm/tlbflush.h>
 

mm/mmu_gather.c

@@ -9,8 +9,8 @@
 #include <linux/smp.h>
 #include <linux/swap.h>
 #include <linux/rmap.h>
+#include <linux/pgalloc.h>
 
-#include <asm/pgalloc.h>
 #include <asm/tlb.h>
 
 #ifndef CONFIG_MMU_GATHER_NO_GATHER

mm/mremap.c

@@ -25,10 +25,10 @@
 #include <linux/uaccess.h>
 #include <linux/userfaultfd_k.h>
 #include <linux/mempolicy.h>
+#include <linux/pgalloc.h>
 
 #include <asm/cacheflush.h>
 #include <asm/tlb.h>
-#include <asm/pgalloc.h>
 
 #include "internal.h"
 

mm/pgtable-generic.c

@@ -14,7 +14,8 @@
 #include <linux/swapops.h>
 #include <linux/mm_inline.h>
 #include <linux/iommu.h>
-#include <asm/pgalloc.h>
+#include <linux/pgalloc.h>
+
 #include <asm/tlb.h>
 
 /*

mm/pt_reclaim.c

@@ -1,7 +1,8 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <linux/hugetlb.h>
+#include <linux/pgalloc.h>
+
 #include <asm-generic/tlb.h>
-#include <asm/pgalloc.h>
 
 #include "internal.h"