mm/rmap: rename anon_vma_interval_tree_*() to anon_rmap_tree_*()

To be consistent with the newly renamed mapping_rmap_tree_*(), rename the
anon_vma_interval_tree_*() helpers to anon_rmap_tree_*().

No functional change intended.

Link: https://lore.kernel.org/20260710-b4-pre-scalable-cow-v2-11-2a5aa403d977@kernel.org
Signed-off-by: Lorenzo Stoakes <ljs@kernel.org>
Reviewed-by: Gregory Price <gourry@gourry.net>
Reviewed-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Cc: Ackerley Tng <ackerleytng@google.com>
Cc: David Hildenbrand (Arm) <david@kernel.org>
Cc: Kai Huang <kai.huang@intel.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Pedro Falcato <pfalcato@suse.de>
Cc: SJ Park <sj@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Liam R. Howlett (Oracle) <liam@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

7 files changed, 54 insertions, 57 deletions

diff --git a/include/linux/mm.h b/include/linux/mm.h
index e108b03f536a..498692da306c 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -4114,26 +4114,23 @@ mapping_rmap_tree_iter_next(struct vm_area_struct *vma,
 	     vma; vma = mapping_rmap_tree_iter_next(vma, pgoff_start,	 \
 						    pgoff_last))
 
-void anon_vma_interval_tree_insert(struct anon_vma_chain *avc,
-				   struct anon_vma *anon_vma);
-void anon_vma_interval_tree_remove(struct anon_vma_chain *avc,
-				   struct anon_vma *anon_vma);
-
+void anon_rmap_tree_insert(struct anon_vma_chain *avc,
+			   struct anon_vma *anon_vma);
+void anon_rmap_tree_remove(struct anon_vma_chain *avc,
+			   struct anon_vma *anon_vma);
 struct anon_vma_chain *
-anon_vma_interval_tree_iter_first(struct anon_vma *anon_vma,
-				  pgoff_t pgoff_start, pgoff_t pgoff_last);
+anon_rmap_tree_iter_first(struct anon_vma *anon_vma,
+			  pgoff_t pgoff_start, pgoff_t pgoff_last);
 struct anon_vma_chain *
-anon_vma_interval_tree_iter_next(struct anon_vma_chain *avc,
-				 pgoff_t pgoff_start, pgoff_t pgoff_last);
+anon_rmap_tree_iter_next(struct anon_vma_chain *avc,
+			 pgoff_t pgoff_start, pgoff_t pgoff_last);
 #ifdef CONFIG_DEBUG_VM_RB
-void anon_vma_interval_tree_verify(struct anon_vma_chain *avc);
+void anon_rmap_tree_verify(struct anon_vma_chain *avc);
 #endif
 
-#define anon_vma_interval_tree_foreach(avc, anon_vma, pgoff_start, pgoff_last) \
-	for (avc = anon_vma_interval_tree_iter_first(anon_vma, pgoff_start,    \
-						     pgoff_last);	       \
-	     avc; avc = anon_vma_interval_tree_iter_next(avc, pgoff_start,     \
-							 pgoff_last))
+#define anon_rmap_tree_foreach(avc, anon_vma, pgoff_start, pgoff_last)		 \
+	for (avc = anon_rmap_tree_iter_first(anon_vma, pgoff_start, pgoff_last); \
+	     avc; avc = anon_rmap_tree_iter_next(avc, pgoff_start, pgoff_last))
 
 /* mmap.c */
 extern int __vm_enough_memory(const struct mm_struct *mm, long pages, int cap_sys_admin);
diff --git a/mm/interval_tree.c b/mm/interval_tree.c
index 5bfe95b5cd28..3ae9e106d3af 100644
--- a/mm/interval_tree.c
+++ b/mm/interval_tree.c
@@ -93,41 +93,41 @@ static pgoff_t avc_last_pgoff(struct anon_vma_chain *avc)
 
 INTERVAL_TREE_DEFINE(struct anon_vma_chain, rb, pgoff_t, rb_subtree_last,
 		     avc_start_pgoff, avc_last_pgoff,
-		     static, __anon_vma_interval_tree)
+		     static, __anon_rmap_tree)
 
-void anon_vma_interval_tree_insert(struct anon_vma_chain *avc,
-				   struct anon_vma *anon_vma)
+void anon_rmap_tree_insert(struct anon_vma_chain *avc,
+			   struct anon_vma *anon_vma)
 {
 #ifdef CONFIG_DEBUG_VM_RB
 	avc->cached_vma_start = avc_start_pgoff(avc);
 	avc->cached_vma_last = avc_last_pgoff(avc);
 #endif
-	__anon_vma_interval_tree_insert(avc, &anon_vma->rb_root);
+	__anon_rmap_tree_insert(avc, &anon_vma->rb_root);
 }
 
-void anon_vma_interval_tree_remove(struct anon_vma_chain *avc,
-				   struct anon_vma *anon_vma)
+void anon_rmap_tree_remove(struct anon_vma_chain *avc,
+			   struct anon_vma *anon_vma)
 {
-	__anon_vma_interval_tree_remove(avc, &anon_vma->rb_root);
+	__anon_rmap_tree_remove(avc, &anon_vma->rb_root);
 }
 
 struct anon_vma_chain *
-anon_vma_interval_tree_iter_first(struct anon_vma *anon_vma,
-				  pgoff_t pgoff_start, pgoff_t pgoff_last)
+anon_rmap_tree_iter_first(struct anon_vma *anon_vma,
+			  pgoff_t pgoff_start, pgoff_t pgoff_last)
 {
-	return __anon_vma_interval_tree_iter_first(&anon_vma->rb_root,
-						   pgoff_start, pgoff_last);
+	return __anon_rmap_tree_iter_first(&anon_vma->rb_root,
+					   pgoff_start, pgoff_last);
 }
 
 struct anon_vma_chain *
-anon_vma_interval_tree_iter_next(struct anon_vma_chain *avc,
-				  pgoff_t pgoff_start, pgoff_t pgoff_last)
+anon_rmap_tree_iter_next(struct anon_vma_chain *avc,
+			 pgoff_t pgoff_start, pgoff_t pgoff_last)
 {
-	return __anon_vma_interval_tree_iter_next(avc, pgoff_start, pgoff_last);
+	return __anon_rmap_tree_iter_next(avc, pgoff_start, pgoff_last);
 }
 
 #ifdef CONFIG_DEBUG_VM_RB
-void anon_vma_interval_tree_verify(struct anon_vma_chain *avc)
+void anon_rmap_tree_verify(struct anon_vma_chain *avc)
 {
 	WARN_ON_ONCE(avc->cached_vma_start != avc_start_pgoff(avc));
 	WARN_ON_ONCE(avc->cached_vma_last != avc_last_pgoff(avc));
diff --git a/mm/ksm.c b/mm/ksm.c
index c0bd8eae763f..14550f69cf02 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -3232,7 +3232,7 @@ again:
 		 * we wouldn't have the KSM folio mapped in these processes
 		 * anymore.
 		 */
-		anon_vma_interval_tree_foreach(vmac, anon_vma, index, index) {
+		anon_rmap_tree_foreach(vmac, anon_vma, index, index) {
 
 			cond_resched();
 			vma = vmac->vma;
@@ -3294,7 +3294,7 @@ void collect_procs_ksm(const struct folio *folio, const struct page *page,
 				task_early_kill(tsk, force_early);
 			if (!t)
 				continue;
-			anon_vma_interval_tree_foreach(vmac, av, index, index)
+			anon_rmap_tree_foreach(vmac, av, index, index)
 			{
 				vma = vmac->vma;
 				if (vma->vm_mm == t->mm) {
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 24d660c32058..aaf14608b30e 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -564,7 +564,7 @@ static void collect_procs_anon(const struct folio *folio,
 
 		if (!t)
 			continue;
-		anon_vma_interval_tree_foreach(vmac, av, pgoff, pgoff) {
+		anon_rmap_tree_foreach(vmac, av, pgoff, pgoff) {
 			vma = vmac->vma;
 			if (vma->vm_mm != t->mm)
 				continue;
diff --git a/mm/rmap.c b/mm/rmap.c
index 6d4423a16c8b..e854679553b9 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -211,7 +211,7 @@ int __anon_vma_prepare(struct vm_area_struct *vma)
 	if (likely(!vma->anon_vma)) {
 		vma->anon_vma = anon_vma;
 		anon_vma_chain_assign(vma, avc, anon_vma);
-		anon_vma_interval_tree_insert(avc, anon_vma);
+		anon_rmap_tree_insert(avc, anon_vma);
 		anon_vma->num_active_vmas++;
 		allocated = NULL;
 		avc = NULL;
@@ -354,7 +354,7 @@ int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src,
 	list_for_each_entry_reverse(avc, &dst->anon_vma_chain, same_vma) {
 		struct anon_vma *anon_vma = avc->anon_vma;
 
-		anon_vma_interval_tree_insert(avc, anon_vma);
+		anon_rmap_tree_insert(avc, anon_vma);
 		if (operation == VMA_OP_FORK)
 			maybe_reuse_anon_vma(dst, anon_vma);
 	}
@@ -434,7 +434,7 @@ int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma)
 	anon_vma_chain_assign(vma, avc, anon_vma);
 	/* Now let rmap see it. */
 	anon_vma_lock_write(anon_vma);
-	anon_vma_interval_tree_insert(avc, anon_vma);
+	anon_rmap_tree_insert(avc, anon_vma);
 	anon_vma->parent->num_children++;
 	anon_vma_unlock_write(anon_vma);
 
@@ -499,7 +499,7 @@ void unlink_anon_vmas(struct vm_area_struct *vma)
 	list_for_each_entry_safe(avc, next, &vma->anon_vma_chain, same_vma) {
 		struct anon_vma *anon_vma = avc->anon_vma;
 
-		anon_vma_interval_tree_remove(avc, anon_vma);
+		anon_rmap_tree_remove(avc, anon_vma);
 
 		/*
 		 * Leave empty anon_vmas on the list - we'll need
@@ -2988,7 +2988,7 @@ static void rmap_walk_anon(struct folio *folio,
 
 	pgoff_start = folio_pgoff(folio);
 	pgoff_end = pgoff_start + folio_nr_pages(folio) - 1;
-	anon_vma_interval_tree_foreach(avc, anon_vma, pgoff_start, pgoff_end) {
+	anon_rmap_tree_foreach(avc, anon_vma, pgoff_start, pgoff_end) {
 		struct vm_area_struct *vma = avc->vma;
 		unsigned long address = vma_address(vma, pgoff_start,
 				folio_nr_pages(folio));
diff --git a/mm/vma.c b/mm/vma.c
index 2cd70f1d4db7..35ba3475128f 100644
--- a/mm/vma.c
+++ b/mm/vma.c
@@ -258,30 +258,30 @@ static void __remove_shared_vm_struct(struct vm_area_struct *vma,
  *
  * Before updating the vma's vm_start / vm_end / vm_pgoff fields, the
  * vma must be removed from the anon_vma's interval trees using
- * anon_vma_interval_tree_pre_update_vma().
+ * anon_rmap_tree_pre_update_vma().
  *
  * After the update, the vma will be reinserted using
- * anon_vma_interval_tree_post_update_vma().
+ * anon_rmap_tree_post_update_vma().
  *
  * The entire update must be protected by exclusive mmap_lock and by
  * the root anon_vma's mutex.
  */
 static void
-anon_vma_interval_tree_pre_update_vma(struct vm_area_struct *vma)
+anon_rmap_tree_pre_update_vma(struct vm_area_struct *vma)
 {
 	struct anon_vma_chain *avc;
 
 	list_for_each_entry(avc, &vma->anon_vma_chain, same_vma)
-		anon_vma_interval_tree_remove(avc, avc->anon_vma);
+		anon_rmap_tree_remove(avc, avc->anon_vma);
 }
 
 static void
-anon_vma_interval_tree_post_update_vma(struct vm_area_struct *vma)
+anon_rmap_tree_post_update_vma(struct vm_area_struct *vma)
 {
 	struct anon_vma_chain *avc;
 
 	list_for_each_entry(avc, &vma->anon_vma_chain, same_vma)
-		anon_vma_interval_tree_insert(avc, avc->anon_vma);
+		anon_rmap_tree_insert(avc, avc->anon_vma);
 }
 
 /*
@@ -312,9 +312,9 @@ static void vma_prepare(struct vma_prepare *vp)
 
 	if (vp->anon_vma) {
 		anon_vma_lock_write(vp->anon_vma);
-		anon_vma_interval_tree_pre_update_vma(vp->vma);
+		anon_rmap_tree_pre_update_vma(vp->vma);
 		if (vp->adj_next)
-			anon_vma_interval_tree_pre_update_vma(vp->adj_next);
+			anon_rmap_tree_pre_update_vma(vp->adj_next);
 	}
 
 	if (vp->file) {
@@ -359,9 +359,9 @@ static void vma_complete(struct vma_prepare *vp, struct vma_iterator *vmi,
 	}
 
 	if (vp->anon_vma) {
-		anon_vma_interval_tree_post_update_vma(vp->vma);
+		anon_rmap_tree_post_update_vma(vp->vma);
 		if (vp->adj_next)
-			anon_vma_interval_tree_post_update_vma(vp->adj_next);
+			anon_rmap_tree_post_update_vma(vp->adj_next);
 		anon_vma_unlock_write(vp->anon_vma);
 	}
 
@@ -677,7 +677,7 @@ void validate_mm(struct mm_struct *mm)
 		if (anon_vma) {
 			anon_vma_lock_read(anon_vma);
 			list_for_each_entry(avc, &vma->anon_vma_chain, same_vma)
-				anon_vma_interval_tree_verify(avc);
+				anon_rmap_tree_verify(avc);
 			anon_vma_unlock_read(anon_vma);
 		}
 #endif
@@ -3177,11 +3177,11 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
 				if (vma_test(vma, VMA_LOCKED_BIT))
 					mm->locked_vm += grow;
 				vm_stat_account(mm, vma->vm_flags, grow);
-				anon_vma_interval_tree_pre_update_vma(vma);
+				anon_rmap_tree_pre_update_vma(vma);
 				vma->vm_end = address;
 				/* Overwrite old entry in mtree. */
 				vma_iter_store_overwrite(&vmi, vma);
-				anon_vma_interval_tree_post_update_vma(vma);
+				anon_rmap_tree_post_update_vma(vma);
 
 				perf_event_mmap(vma);
 			}
@@ -3256,12 +3256,12 @@ int expand_downwards(struct vm_area_struct *vma, unsigned long address)
 				if (vma_test(vma, VMA_LOCKED_BIT))
 					mm->locked_vm += grow;
 				vm_stat_account(mm, vma->vm_flags, grow);
-				anon_vma_interval_tree_pre_update_vma(vma);
+				anon_rmap_tree_pre_update_vma(vma);
 				vma->vm_start = address;
 				vma->vm_pgoff -= grow;
 				/* Overwrite old entry in mtree. */
 				vma_iter_store_overwrite(&vmi, vma);
-				anon_vma_interval_tree_post_update_vma(vma);
+				anon_rmap_tree_post_update_vma(vma);
 
 				perf_event_mmap(vma);
 			}
diff --git a/tools/testing/vma/include/stubs.h b/tools/testing/vma/include/stubs.h
index 3a11547b5bd1..d6136e19a8af 100644
--- a/tools/testing/vma/include/stubs.h
+++ b/tools/testing/vma/include/stubs.h
@@ -271,13 +271,13 @@ static inline void flush_dcache_mmap_unlock(struct address_space *mapping)
 {
 }
 
-static inline void anon_vma_interval_tree_insert(struct anon_vma_chain *avc,
-						 struct anon_vma *anon_vma)
+static inline void anon_rmap_tree_insert(struct anon_vma_chain *avc,
+					 struct anon_vma *anon_vma)
 {
 }
 
-static inline void anon_vma_interval_tree_remove(struct anon_vma_chain *avc,
-						 struct anon_vma *anon_vma)
+static inline void anon_rmap_tree_remove(struct anon_vma_chain *avc,
+					 struct anon_vma *anon_vma)
 {
 }