mm: treewide: clarify pgtable_page_{ctor,dtor}() naming

The naming of pgtable_page_{ctor,dtor}() seems to have confused a few
people, and until recently arm64 used these erroneously/pointlessly for
other levels of page table.

To make it incredibly clear that these only apply to the PTE level, and to
align with the naming of pgtable_pmd_page_{ctor,dtor}(), let's rename them
to pgtable_pte_page_{ctor,dtor}().

These changes were generated with the following shell script:

----
git grep -lw 'pgtable_page_.tor' | while read FILE; do
    sed -i '{s/pgtable_page_ctor/pgtable_pte_page_ctor/}' $FILE;
    sed -i '{s/pgtable_page_dtor/pgtable_pte_page_dtor/}' $FILE;
done
----

... with the documentation re-flowed to remain under 80 columns, and
whitespace fixed up in macros to keep backslashes aligned.

There should be no functional change as a result of this patch.

Link: http://lkml.kernel.org/r/20190722141133.3116-1-mark.rutland@arm.com
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>	[m68k]
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

3 files changed, 7 insertions, 7 deletions

diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h
index 4399d712f6db..b34d44d666a4 100644
--- a/arch/m68k/include/asm/mcf_pgalloc.h
+++ b/arch/m68k/include/asm/mcf_pgalloc.h
@@ -41,7 +41,7 @@ extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address)
 static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page,
 				  unsigned long address)
 {
-	pgtable_page_dtor(page);
+	pgtable_pte_page_dtor(page);
 	__free_page(page);
 }
 
@@ -54,7 +54,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm)
 
 	if (!page)
 		return NULL;
-	if (!pgtable_page_ctor(page)) {
+	if (!pgtable_pte_page_ctor(page)) {
 		__free_page(page);
 		return NULL;
 	}
@@ -73,7 +73,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm)
 
 static inline void pte_free(struct mm_struct *mm, struct page *page)
 {
-	pgtable_page_dtor(page);
+	pgtable_pte_page_dtor(page);
 	__free_page(page);
 }
 
diff --git a/arch/m68k/include/asm/motorola_pgalloc.h b/arch/m68k/include/asm/motorola_pgalloc.h
index d04d9ba9b976..acab315c851f 100644
--- a/arch/m68k/include/asm/motorola_pgalloc.h
+++ b/arch/m68k/include/asm/motorola_pgalloc.h
@@ -36,7 +36,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 	page = alloc_pages(GFP_KERNEL|__GFP_ZERO, 0);
 	if(!page)
 		return NULL;
-	if (!pgtable_page_ctor(page)) {
+	if (!pgtable_pte_page_ctor(page)) {
 		__free_page(page);
 		return NULL;
 	}
@@ -51,7 +51,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 
 static inline void pte_free(struct mm_struct *mm, pgtable_t page)
 {
-	pgtable_page_dtor(page);
+	pgtable_pte_page_dtor(page);
 	cache_page(kmap(page));
 	kunmap(page);
 	__free_page(page);
@@ -60,7 +60,7 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t page)
 static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page,
 				  unsigned long address)
 {
-	pgtable_page_dtor(page);
+	pgtable_pte_page_dtor(page);
 	cache_page(kmap(page));
 	kunmap(page);
 	__free_page(page);
diff --git a/arch/m68k/include/asm/sun3_pgalloc.h b/arch/m68k/include/asm/sun3_pgalloc.h
index 1a8ddbd0d23c..856121122b91 100644
--- a/arch/m68k/include/asm/sun3_pgalloc.h
+++ b/arch/m68k/include/asm/sun3_pgalloc.h
@@ -21,7 +21,7 @@ extern const char bad_pmd_string[];
 
 #define __pte_free_tlb(tlb,pte,addr)			\
 do {							\
-	pgtable_page_dtor(pte);				\
+	pgtable_pte_page_dtor(pte);			\
 	tlb_remove_page((tlb), pte);			\
 } while (0)