@@ -220,7 +220,7 @@ since the system was booted, via two new /proc/vmstat entries: ::
     /proc/vmstat/nr_foll_pin_requested
 
 Those are both going to show zero, unless CONFIG_DEBUG_VM is set. This is
-because there is a noticeable performance drop in put_user_page(), when they
+because there is a noticeable performance drop in unpin_user_page(), when they
 are activated.
 
 References

@@ -168,7 +168,7 @@ static long mm_iommu_do_alloc(struct mm_struct *mm, unsigned long ua,
 
 free_exit:
 	/* free the references taken */
-	put_user_pages(mem->hpages, pinned);
+	unpin_user_pages(mem->hpages, pinned);
 
 	vfree(mem->hpas);
 	kfree(mem);

@@ -211,8 +211,8 @@ static void mm_iommu_unpin(struct mm_iommu_table_group_mem_t *mem)
 		if (!page)
 			continue;
 
-		put_user_pages_dirty_lock(&mem->hpages[i], 1,
-					  MM_IOMMU_TABLE_GROUP_PAGE_DIRTY);
+		unpin_user_pages_dirty_lock(&mem->hpages[i], 1,
+					    MM_IOMMU_TABLE_GROUP_PAGE_DIRTY);
 
 		mem->hpas[i] = 0;
 	}

@@ -188,8 +188,8 @@ via_free_sg_info(struct pci_dev *pdev, drm_via_sg_info_t *vsg)
 		kfree(vsg->desc_pages);
 		/* fall through */
 	case dr_via_pages_locked:
-		put_user_pages_dirty_lock(vsg->pages, vsg->num_pages,
-					  (vsg->direction == DMA_FROM_DEVICE));
+		unpin_user_pages_dirty_lock(vsg->pages, vsg->num_pages,
+					   (vsg->direction == DMA_FROM_DEVICE));
 		/* fall through */
 	case dr_via_pages_alloc:
 		vfree(vsg->pages);

@@ -54,7 +54,7 @@ static void __ib_umem_release(struct ib_device *dev, struct ib_umem *umem, int d
 
 	for_each_sg_page(umem->sg_head.sgl, &sg_iter, umem->sg_nents, 0) {
 		page = sg_page_iter_page(&sg_iter);
-		put_user_pages_dirty_lock(&page, 1, umem->writable && dirty);
+		unpin_user_pages_dirty_lock(&page, 1, umem->writable && dirty);
 	}
 
 	sg_free_table(&umem->sg_head);

@@ -118,7 +118,7 @@ int hfi1_acquire_user_pages(struct mm_struct *mm, unsigned long vaddr, size_t np
 void hfi1_release_user_pages(struct mm_struct *mm, struct page **p,
 			     size_t npages, bool dirty)
 {
-	put_user_pages_dirty_lock(p, npages, dirty);
+	unpin_user_pages_dirty_lock(p, npages, dirty);
 
 	if (mm) { /* during close after signal, mm can be NULL */
 		atomic64_sub(npages, &mm->pinned_vm);

@@ -482,7 +482,7 @@ int mthca_map_user_db(struct mthca_dev *dev, struct mthca_uar *uar,
 
 	ret = pci_map_sg(dev->pdev, &db_tab->page[i].mem, 1, PCI_DMA_TODEVICE);
 	if (ret < 0) {
-		put_user_page(pages[0]);
+		unpin_user_page(pages[0]);
 		goto out;
 	}
 

@@ -490,7 +490,7 @@ int mthca_map_user_db(struct mthca_dev *dev, struct mthca_uar *uar,
 				 mthca_uarc_virt(dev, uar, i));
 	if (ret) {
 		pci_unmap_sg(dev->pdev, &db_tab->page[i].mem, 1, PCI_DMA_TODEVICE);
-		put_user_page(sg_page(&db_tab->page[i].mem));
+		unpin_user_page(sg_page(&db_tab->page[i].mem));
 		goto out;
 	}
 

@@ -556,7 +556,7 @@ void mthca_cleanup_user_db_tab(struct mthca_dev *dev, struct mthca_uar *uar,
 		if (db_tab->page[i].uvirt) {
 			mthca_UNMAP_ICM(dev, mthca_uarc_virt(dev, uar, i), 1);
 			pci_unmap_sg(dev->pdev, &db_tab->page[i].mem, 1, PCI_DMA_TODEVICE);
-			put_user_page(sg_page(&db_tab->page[i].mem));
+			unpin_user_page(sg_page(&db_tab->page[i].mem));
 		}
 	}
 

@@ -40,7 +40,7 @@
 static void __qib_release_user_pages(struct page **p, size_t num_pages,
 				     int dirty)
 {
-	put_user_pages_dirty_lock(p, num_pages, dirty);
+	unpin_user_pages_dirty_lock(p, num_pages, dirty);
 }
 
 /**

@@ -317,7 +317,7 @@ static int qib_user_sdma_page_to_frags(const struct qib_devdata *dd,
 		 * the caller can ignore this page.
 		 */
 		if (put) {
-			put_user_page(page);
+			unpin_user_page(page);
 		} else {
 			/* coalesce case */
 			kunmap(page);

@@ -631,7 +631,7 @@ static void qib_user_sdma_free_pkt_frag(struct device *dev,
 			kunmap(pkt->addr[i].page);
 
 		if (pkt->addr[i].put_page)
-			put_user_page(pkt->addr[i].page);
+			unpin_user_page(pkt->addr[i].page);
 		else
 			__free_page(pkt->addr[i].page);
 	} else if (pkt->addr[i].kvaddr) {

@@ -706,7 +706,7 @@ static int qib_user_sdma_pin_pages(const struct qib_devdata *dd,
 	/* if error, return all pages not managed by pkt */
 free_pages:
 	while (i < j)
-		put_user_page(pages[i++]);
+		unpin_user_page(pages[i++]);
 
 done:
 	return ret;

@@ -75,7 +75,7 @@ static void usnic_uiom_put_pages(struct list_head *chunk_list, int dirty)
 		for_each_sg(chunk->page_list, sg, chunk->nents, i) {
 			page = sg_page(sg);
 			pa = sg_phys(sg);
-			put_user_pages_dirty_lock(&page, 1, dirty);
+			unpin_user_pages_dirty_lock(&page, 1, dirty);
 			usnic_dbg("pa: %pa\n", &pa);
 		}
 		kfree(chunk);

@@ -63,7 +63,7 @@ struct siw_mem *siw_mem_id2obj(struct siw_device *sdev, int stag_index)
 static void siw_free_plist(struct siw_page_chunk *chunk, int num_pages,
 			   bool dirty)
 {
-	put_user_pages_dirty_lock(chunk->plist, num_pages, dirty);
+	unpin_user_pages_dirty_lock(chunk->plist, num_pages, dirty);
 }
 
 void siw_umem_release(struct siw_umem *umem, bool dirty)

@@ -349,8 +349,8 @@ int videobuf_dma_free(struct videobuf_dmabuf *dma)
 	BUG_ON(dma->sglen);
 
 	if (dma->pages) {
-		put_user_pages_dirty_lock(dma->pages, dma->nr_pages,
-					  dma->direction == DMA_FROM_DEVICE);
+		unpin_user_pages_dirty_lock(dma->pages, dma->nr_pages,
+					    dma->direction == DMA_FROM_DEVICE);
 		kfree(dma->pages);
 		dma->pages = NULL;
 	}

@@ -360,8 +360,8 @@ static int transfer_max_buffers(struct goldfish_pipe *pipe,
 
 	*consumed_size = pipe->command_buffer->rw_params.consumed_size;
 
-	put_user_pages_dirty_lock(pipe->pages, pages_count,
-				  !is_write && *consumed_size > 0);
+	unpin_user_pages_dirty_lock(pipe->pages, pages_count,
+				    !is_write && *consumed_size > 0);
 
 	mutex_unlock(&pipe->lock);
 	return 0;

@@ -328,7 +328,7 @@ static int put_pfn(unsigned long pfn, int prot)
 	if (!is_invalid_reserved_pfn(pfn)) {
 		struct page *page = pfn_to_page(pfn);
 
-		put_user_pages_dirty_lock(&page, 1, prot & IOMMU_WRITE);
+		unpin_user_pages_dirty_lock(&page, 1, prot & IOMMU_WRITE);
 		return 1;
 	}
 	return 0;

@@ -3328,7 +3328,7 @@ static int io_sqe_buffer_unregister(struct io_ring_ctx *ctx)
 		struct io_mapped_ubuf *imu = &ctx->user_bufs[i];
 
 		for (j = 0; j < imu->nr_bvecs; j++)
-			put_user_page(imu->bvec[j].bv_page);
+			unpin_user_page(imu->bvec[j].bv_page);
 
 		if (ctx->account_mem)
 			io_unaccount_mem(ctx->user, imu->nr_bvecs);

@@ -3473,7 +3473,7 @@ static int io_sqe_buffer_register(struct io_ring_ctx *ctx, void __user *arg,
 			 * release any pages we did get
 			 */
 			if (pret > 0)
-				put_user_pages(pages, pret);
+				unpin_user_pages(pages, pret);
 			if (ctx->account_mem)
 				io_unaccount_mem(ctx->user, nr_pages);
 			kvfree(imu->bvec);

@@ -1093,18 +1093,18 @@ static inline void put_page(struct page *page)
  * made against the page. ("gup-pinned" is another term for the latter).
  *
  * With this scheme, pin_user_pages() becomes special: such pages are marked as
- * distinct from normal pages. As such, the put_user_page() call (and its
+ * distinct from normal pages. As such, the unpin_user_page() call (and its
  * variants) must be used in order to release gup-pinned pages.
  *
  * Choice of value:
  *
  * By making GUP_PIN_COUNTING_BIAS a power of two, debugging of page reference
- * counts with respect to pin_user_pages() and put_user_page() becomes simpler,
- * due to the fact that adding an even power of two to the page refcount has the
- * effect of using only the upper N bits, for the code that counts up using the
- * bias value. This means that the lower bits are left for the exclusive use of
- * the original code that increments and decrements by one (or at least, by much
- * smaller values than the bias value).
+ * counts with respect to pin_user_pages() and unpin_user_page() becomes
+ * simpler, due to the fact that adding an even power of two to the page
+ * refcount has the effect of using only the upper N bits, for the code that
+ * counts up using the bias value. This means that the lower bits are left for
+ * the exclusive use of the original code that increments and decrements by one
+ * (or at least, by much smaller values than the bias value).
  *
  * Of course, once the lower bits overflow into the upper bits (and this is
  * OK, because subtraction recovers the original values), then visual inspection

@@ -1119,10 +1119,10 @@ static inline void put_page(struct page *page)
  */
 #define GUP_PIN_COUNTING_BIAS (1UL << 10)
 
-void put_user_page(struct page *page);
-void put_user_pages_dirty_lock(struct page **pages, unsigned long npages,
-			       bool make_dirty);
-void put_user_pages(struct page **pages, unsigned long npages);
+void unpin_user_page(struct page *page);
+void unpin_user_pages_dirty_lock(struct page **pages, unsigned long npages,
+				 bool make_dirty);
+void unpin_user_pages(struct page **pages, unsigned long npages);
 
 /**
  * page_dma_pinned() - report if a page is pinned for DMA.

@@ -2673,7 +2673,7 @@ struct page *follow_page(struct vm_area_struct *vma, unsigned long address,
 #define FOLL_ANON	0x8000	/* don't do file mappings */
 #define FOLL_LONGTERM	0x10000	/* mapping lifetime is indefinite: see below */
 #define FOLL_SPLIT_PMD	0x20000	/* split huge pmd before returning */
-#define FOLL_PIN	0x40000	/* pages must be released via put_user_page() */
+#define FOLL_PIN	0x40000	/* pages must be released via unpin_user_page */
 
 /*
  * FOLL_PIN and FOLL_LONGTERM may be used in various combinations with each

@@ -2708,7 +2708,7 @@ struct page *follow_page(struct vm_area_struct *vma, unsigned long address,
  * Direct IO). This lets the filesystem know that some non-file-system entity is
  * potentially changing the pages' data. In contrast to FOLL_GET (whose pages
  * are released via put_page()), FOLL_PIN pages must be released, ultimately, by
- * a call to put_user_page().
+ * a call to unpin_user_page().
  *
  * FOLL_PIN is similar to FOLL_GET: both of these pin pages. They use different
  * and separate refcounting mechanisms, however, and that means that each has

@@ -2716,7 +2716,7 @@ struct page *follow_page(struct vm_area_struct *vma, unsigned long address,
  *
  *     FOLL_GET: get_user_pages*() to acquire, and put_page() to release.
  *
- *     FOLL_PIN: pin_user_pages*() to acquire, and put_user_pages to release.
+ *     FOLL_PIN: pin_user_pages*() to acquire, and unpin_user_pages to release.
  *
  * FOLL_PIN and FOLL_GET are mutually exclusive for a given function call.
  * (The underlying pages may experience both FOLL_GET-based and FOLL_PIN-based

@@ -2726,7 +2726,7 @@ struct page *follow_page(struct vm_area_struct *vma, unsigned long address,
  * FOLL_PIN should be set internally by the pin_user_pages*() APIs, never
  * directly by the caller. That's in order to help avoid mismatches when
  * releasing pages: get_user_pages*() pages must be released via put_page(),
- * while pin_user_pages*() pages must be released via put_user_page().
+ * while pin_user_pages*() pages must be released via unpin_user_page().
  *
  * Please see Documentation/vm/pin_user_pages.rst for more information.
  */

@@ -245,7 +245,7 @@ enum node_stat_item {
 	NR_WRITTEN,		/* page writings since bootup */
 	NR_KERNEL_MISC_RECLAIMABLE,	/* reclaimable non-slab kernel pages */
 	NR_FOLL_PIN_REQUESTED,	/* via: pin_user_page(), gup flag: FOLL_PIN */
-	NR_FOLL_PIN_RETURNED,	/* pages returned via put_user_page() */
+	NR_FOLL_PIN_RETURNED,	/* pages returned via unpin_user_page() */
 	NR_VM_NODE_STAT_ITEMS
 };
 

@@ -113,15 +113,15 @@ static bool __put_devmap_managed_user_page(struct page *page)
 #endif /* CONFIG_DEV_PAGEMAP_OPS */
 
 /**
- * put_user_page() - release a dma-pinned page
+ * unpin_user_page() - release a dma-pinned page
  * @page:            pointer to page to be released
  *
  * Pages that were pinned via pin_user_pages*() must be released via either
- * put_user_page(), or one of the put_user_pages*() routines. This is so that
- * such pages can be separately tracked and uniquely handled. In particular,
- * interactions with RDMA and filesystems need special handling.
+ * unpin_user_page(), or one of the unpin_user_pages*() routines. This is so
+ * that such pages can be separately tracked and uniquely handled. In
+ * particular, interactions with RDMA and filesystems need special handling.
  */
-void put_user_page(struct page *page)
+void unpin_user_page(struct page *page)
 {
 	page = compound_head(page);
 

@@ -139,10 +139,10 @@ void put_user_page(struct page *page)
 
 	__update_proc_vmstat(page, NR_FOLL_PIN_RETURNED, 1);
 }
-EXPORT_SYMBOL(put_user_page);
+EXPORT_SYMBOL(unpin_user_page);
 
 /**
- * put_user_pages_dirty_lock() - release and optionally dirty gup-pinned pages
+ * unpin_user_pages_dirty_lock() - release and optionally dirty gup-pinned pages
  * @pages:  array of pages to be maybe marked dirty, and definitely released.
  * @npages: number of pages in the @pages array.
  * @make_dirty: whether to mark the pages dirty

@@ -152,19 +152,19 @@ EXPORT_SYMBOL(put_user_page);
  *
  * For each page in the @pages array, make that page (or its head page, if a
  * compound page) dirty, if @make_dirty is true, and if the page was previously
- * listed as clean. In any case, releases all pages using put_user_page(),
- * possibly via put_user_pages(), for the non-dirty case.
+ * listed as clean. In any case, releases all pages using unpin_user_page(),
+ * possibly via unpin_user_pages(), for the non-dirty case.
  *
- * Please see the put_user_page() documentation for details.
+ * Please see the unpin_user_page() documentation for details.
  *
  * set_page_dirty_lock() is used internally. If instead, set_page_dirty() is
  * required, then the caller should a) verify that this is really correct,
  * because _lock() is usually required, and b) hand code it:
- * set_page_dirty_lock(), put_user_page().
+ * set_page_dirty_lock(), unpin_user_page().
  *
  */
-void put_user_pages_dirty_lock(struct page **pages, unsigned long npages,
-			       bool make_dirty)
+void unpin_user_pages_dirty_lock(struct page **pages, unsigned long npages,
+				 bool make_dirty)
 {
 	unsigned long index;
 

@@ -175,7 +175,7 @@ void put_user_pages_dirty_lock(struct page **pages, unsigned long npages,
 	 */
 
 	if (!make_dirty) {
-		put_user_pages(pages, npages);
+		unpin_user_pages(pages, npages);
 		return;
 	}
 

@@ -203,21 +203,21 @@ void put_user_pages_dirty_lock(struct page **pages, unsigned long npages,
 		 */
 		if (!PageDirty(page))
 			set_page_dirty_lock(page);
-		put_user_page(page);
+		unpin_user_page(page);
 	}
 }
-EXPORT_SYMBOL(put_user_pages_dirty_lock);
+EXPORT_SYMBOL(unpin_user_pages_dirty_lock);
 
 /**
- * put_user_pages() - release an array of gup-pinned pages.
+ * unpin_user_pages() - release an array of gup-pinned pages.
  * @pages:  array of pages to be marked dirty and released.
  * @npages: number of pages in the @pages array.
  *
- * For each page in the @pages array, release the page using put_user_page().
+ * For each page in the @pages array, release the page using unpin_user_page().
  *
- * Please see the put_user_page() documentation for details.
+ * Please see the unpin_user_page() documentation for details.
  */
-void put_user_pages(struct page **pages, unsigned long npages)
+void unpin_user_pages(struct page **pages, unsigned long npages)
 {
 	unsigned long index;
 

@@ -227,9 +227,9 @@ void put_user_pages(struct page **pages, unsigned long npages)
 	 * single operation to the head page should suffice.
 	 */
 	for (index = 0; index < npages; index++)
-		put_user_page(pages[index]);
+		unpin_user_page(pages[index]);
 }
-EXPORT_SYMBOL(put_user_pages);
+EXPORT_SYMBOL(unpin_user_pages);
 
 #ifdef CONFIG_MMU
 static struct page *no_page_table(struct vm_area_struct *vma,

@@ -1956,7 +1956,7 @@ static void __maybe_unused undo_dev_pagemap(int *nr, int nr_start,
 
 		ClearPageReferenced(page);
 		if (flags & FOLL_PIN)
-			put_user_page(page);
+			unpin_user_page(page);
 		else
 			put_page(page);
 	}

@@ -35,7 +35,7 @@ static void put_back_pages(int cmd, struct page **pages, unsigned long nr_pages)
 
 	case PIN_FAST_BENCHMARK:
 	case PIN_BENCHMARK:
-		put_user_pages(pages, nr_pages);
+		unpin_user_pages(pages, nr_pages);
 		break;
 	}
 }

@@ -126,8 +126,8 @@ static int process_vm_rw_single_vec(unsigned long addr,
 		pa += pinned_pages * PAGE_SIZE;
 
 		/* If vm_write is set, the pages need to be made dirty: */
-		put_user_pages_dirty_lock(process_pages, pinned_pages,
-					  vm_write);
+		unpin_user_pages_dirty_lock(process_pages, pinned_pages,
+					    vm_write);
 	}
 
 	return rc;

@@ -212,7 +212,7 @@ static int xdp_umem_map_pages(struct xdp_umem *umem)
 
 static void xdp_umem_unpin_pages(struct xdp_umem *umem)
 {
-	put_user_pages_dirty_lock(umem->pgs, umem->npgs, true);
+	unpin_user_pages_dirty_lock(umem->pgs, umem->npgs, true);
 
 	kfree(umem->pgs);
 	umem->pgs = NULL;