[PATCH v1 12/16] mm: rename zap_vma_pages() to zap_vma()

["David Hildenbrand (Arm)" <david@kernel.org>]

Let's rename it to an even simpler name. While at it, add some
simplistic kernel doc.

Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
---
 arch/powerpc/platforms/book3s/vas-api.c | 2 +-
 arch/powerpc/platforms/pseries/vas.c    | 2 +-
 include/linux/mm.h                      | 6 +++++-
 lib/vdso/datastore.c                    | 2 +-
 mm/page-writeback.c                     | 2 +-
 5 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/arch/powerpc/platforms/book3s/vas-api.c b/arch/powerpc/platforms/book3s/vas-api.c
index ea4ffa63f043..e96d79db69fe 100644
--- a/arch/powerpc/platforms/book3s/vas-api.c
+++ b/arch/powerpc/platforms/book3s/vas-api.c
@@ -414,7 +414,7 @@ static vm_fault_t vas_mmap_fault(struct vm_fault *vmf)
 	/*
 	 * When the LPAR lost credits due to core removal or during
 	 * migration, invalidate the existing mapping for the current
-	 * paste addresses and set windows in-active (zap_vma_pages in
+	 * paste addresses and set windows in-active (zap_vma() in
 	 * reconfig_close_windows()).
 	 * New mapping will be done later after migration or new credits
 	 * available. So continue to receive faults if the user space
diff --git a/arch/powerpc/platforms/pseries/vas.c b/arch/powerpc/platforms/pseries/vas.c
index ceb0a8788c0a..fa05f04364fe 100644
--- a/arch/powerpc/platforms/pseries/vas.c
+++ b/arch/powerpc/platforms/pseries/vas.c
@@ -807,7 +807,7 @@ static int reconfig_close_windows(struct vas_caps *vcap, int excess_creds,
 		 * is done before the original mmap() and after the ioctl.
 		 */
 		if (vma)
-			zap_vma_pages(vma);
+			zap_vma(vma);
 
 		mutex_unlock(&task_ref->mmap_mutex);
 		mmap_write_unlock(task_ref->mm);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 4710f7c7495a..4bd1500b9630 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2837,7 +2837,11 @@ void zap_vma_ptes(struct vm_area_struct *vma, unsigned long address,
 		  unsigned long size);
 void zap_page_range_single(struct vm_area_struct *vma, unsigned long address,
 			   unsigned long size);
-static inline void zap_vma_pages(struct vm_area_struct *vma)
+/**
+ * zap_vma - zap all page table entries in a vma
+ * @vma: The vma to zap.
+ */
+static inline void zap_vma(struct vm_area_struct *vma)
 {
 	zap_page_range_single(vma, vma->vm_start, vma->vm_end - vma->vm_start);
 }
diff --git a/lib/vdso/datastore.c b/lib/vdso/datastore.c
index a565c30c71a0..222c143aebf7 100644
--- a/lib/vdso/datastore.c
+++ b/lib/vdso/datastore.c
@@ -121,7 +121,7 @@ int vdso_join_timens(struct task_struct *task, struct time_namespace *ns)
 	mmap_read_lock(mm);
 	for_each_vma(vmi, vma) {
 		if (vma_is_special_mapping(vma, &vdso_vvar_mapping))
-			zap_vma_pages(vma);
+			zap_vma(vma);
 	}
 	mmap_read_unlock(mm);
 
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 601a5e048d12..29f7567e5a71 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -2645,7 +2645,7 @@ void folio_account_cleaned(struct folio *folio, struct bdi_writeback *wb)
  * while this function is in progress, although it may have been truncated
  * before this function is called.  Most callers have the folio locked.
  * A few have the folio blocked from truncation through other means (e.g.
- * zap_vma_pages() has it mapped and is holding the page table lock).
+ * zap_vma() has it mapped and is holding the page table lock).
  * When called from mark_buffer_dirty(), the filesystem should hold a
  * reference to the buffer_head that is being marked dirty, which causes
  * try_to_free_buffers() to fail.
-- 
2.43.0