diff --git a/Documentation/mm/page_frags.rst b/Documentation/mm/page_frags.rst
index 339e641beb53..4cfdbe7db55a 100644
--- a/Documentation/mm/page_frags.rst
+++ b/Documentation/mm/page_frags.rst
@@ -111,10 +111,18 @@ page is aligned according to the 'align/alignment' parameter. Note the size of
 the allocated fragment is not aligned, the caller needs to provide an aligned
 fragsz if there is an alignment requirement for the size of the fragment.
 
+There is a use case that needs minimum memory in order for forward progress, but
+more performant if more memory is available. By using the prepare and commit
+related API, the caller calls prepare API to requests the minimum memory it
+needs and prepare API will return the maximum size of the fragment returned. The
+caller needs to either call the commit API to report how much memory it actually
+uses, or not do so if deciding to not use any memory.
+
 .. kernel-doc:: include/linux/page_frag_cache.h
    :identifiers: page_frag_cache_init page_frag_cache_is_pfmemalloc
 		 __page_frag_alloc_align page_frag_alloc_align page_frag_alloc
-		 page_frag_alloc_abort
+		 page_frag_alloc_abort __page_frag_refill_prepare_align
+		 page_frag_refill_prepare_align page_frag_refill_prepare
 
 .. kernel-doc:: mm/page_frag_cache.c
    :identifiers: page_frag_cache_drain page_frag_free page_frag_alloc_abort_ref
@@ -152,3 +160,36 @@ Allocation & freeing API
     ...
 
     page_frag_free(va);
+
+
+Refill Preparation & committing API
+-----------------------------------
+
+.. code-block:: c
+
+    struct page_frag page_frag, *pfrag;
+    bool merge = true;
+
+    pfrag = &page_frag;
+    if (!page_frag_refill_prepare(nc, 32U, pfrag, GFP_KERNEL))
+        goto wait_for_space;
+
+    copy = min_t(unsigned int, copy, pfrag->size);
+    if (!skb_can_coalesce(skb, i, pfrag->page, pfrag->offset)) {
+        if (i >= max_skb_frags)
+            goto new_segment;
+
+        merge = false;
+    }
+
+    copy = mem_schedule(copy);
+    if (!copy)
+        goto wait_for_space;
+
+    if (merge) {
+        skb_frag_size_add(&skb_shinfo(skb)->frags[i - 1], copy);
+        page_frag_refill_commit_noref(nc, pfrag, copy);
+    } else {
+        skb_fill_page_desc(skb, i, pfrag->page, pfrag->offset, copy);
+        page_frag_refill_commit(nc, pfrag, copy);
+    }
diff --git a/include/linux/page_frag_cache.h b/include/linux/page_frag_cache.h
index c3347c97522c..1e699334646a 100644
--- a/include/linux/page_frag_cache.h
+++ b/include/linux/page_frag_cache.h
@@ -140,6 +140,116 @@ static inline void *page_frag_alloc(struct page_frag_cache *nc,
 	return __page_frag_alloc_align(nc, fragsz, gfp_mask, ~0u);
 }
 
+/**
+ * __page_frag_refill_prepare_align() - Prepare refilling a page_frag with
+ * aligning requirement.
+ * @nc: page_frag cache from which to refill
+ * @fragsz: the requested fragment size
+ * @pfrag: the page_frag to be refilled.
+ * @gfp_mask: the allocation gfp to use when cache need to be refilled
+ * @align_mask: the requested aligning requirement for the fragment
+ *
+ * Prepare refilling a page_frag from page_frag cache with aligning requirement.
+ *
+ * Return:
+ * True if prepare refilling succeeds, otherwise return false.
+ */
+static inline bool __page_frag_refill_prepare_align(struct page_frag_cache *nc,
+						    unsigned int fragsz,
+						    struct page_frag *pfrag,
+						    gfp_t gfp_mask,
+						    unsigned int align_mask)
+{
+	return !!__page_frag_cache_prepare(nc, fragsz, pfrag, gfp_mask,
+					   align_mask);
+}
+
+/**
+ * page_frag_refill_prepare_align() - Prepare refilling a page_frag with
+ * aligning requirement.
+ * @nc: page_frag cache from which to refill
+ * @fragsz: the requested fragment size
+ * @pfrag: the page_frag to be refilled.
+ * @gfp_mask: the allocation gfp to use when cache needs to be refilled
+ * @align: the requested aligning requirement for the fragment
+ *
+ * WARN_ON_ONCE() checking for @align before prepare refilling a page_frag from
+ * page_frag cache with aligning requirement.
+ *
+ * Return:
+ * True if prepare refilling succeeds, otherwise return false.
+ */
+static inline bool page_frag_refill_prepare_align(struct page_frag_cache *nc,
+						  unsigned int fragsz,
+						  struct page_frag *pfrag,
+						  gfp_t gfp_mask,
+						  unsigned int align)
+{
+	WARN_ON_ONCE(!is_power_of_2(align));
+	return __page_frag_refill_prepare_align(nc, fragsz, pfrag, gfp_mask,
+						-align);
+}
+
+/**
+ * page_frag_refill_prepare() - Prepare refilling a page_frag.
+ * @nc: page_frag cache from which to refill
+ * @fragsz: the requested fragment size
+ * @pfrag: the page_frag to be refilled.
+ * @gfp_mask: the allocation gfp to use when cache need to be refilled
+ *
+ * Prepare refilling a page_frag from page_frag cache.
+ *
+ * Return:
+ * True if refill succeeds, otherwise return false.
+ */
+static inline bool page_frag_refill_prepare(struct page_frag_cache *nc,
+					    unsigned int fragsz,
+					    struct page_frag *pfrag,
+					    gfp_t gfp_mask)
+{
+	return __page_frag_refill_prepare_align(nc, fragsz, pfrag, gfp_mask,
+						~0u);
+}
+
+/**
+ * page_frag_refill_commit - Commit a prepare refilling.
+ * @nc: page_frag cache from which to commit
+ * @pfrag: the page_frag to be committed
+ * @used_sz: size of the page fragment has been used
+ *
+ * Commit the actual used size for the refill that was prepared.
+ *
+ * Return:
+ * The true size of the fragment considering the offset alignment.
+ */
+static inline unsigned int page_frag_refill_commit(struct page_frag_cache *nc,
+						   struct page_frag *pfrag,
+						   unsigned int used_sz)
+{
+	return __page_frag_cache_commit(nc, pfrag, used_sz);
+}
+
+/**
+ * page_frag_refill_commit_noref - Commit a prepare refilling without taking
+ * refcount.
+ * @nc: page_frag cache from which to commit
+ * @pfrag: the page_frag to be committed
+ * @used_sz: size of the page fragment has been used
+ *
+ * Commit the prepare refilling by passing the actual used size, but not taking
+ * refcount. Mostly used for fragmemt coalescing case when the current fragment
+ * can share the same refcount with previous fragment.
+ *
+ * Return:
+ * The true size of the fragment considering the offset alignment.
+ */
+static inline unsigned int
+page_frag_refill_commit_noref(struct page_frag_cache *nc,
+			      struct page_frag *pfrag, unsigned int used_sz)
+{
+	return __page_frag_cache_commit_noref(nc, pfrag, used_sz);
+}
+
 void page_frag_free(void *addr);
 void page_frag_alloc_abort_ref(struct page_frag_cache *nc, void *va,
 			       unsigned int fragsz);
