checkpatch: improve --git <commit-count> shortcut

[karo-tx-linux.git] / mm / filemap.c

diff --git a/mm/filemap.c b/mm/filemap.c
index b418405903bc88ccd8a842cb670f79a58c72db59..9665b1d4f318653942f80d46bd1b180c74f68174 100644 (file)
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -114,14 +114,11 @@ static void page_cache_tree_delete(struct address_space *mapping,
                                   struct page *page, void *shadow)
 {
        struct radix_tree_node *node;
-       unsigned long index;
-       unsigned int offset;
-       unsigned int tag;
-       void **slot;
 
        VM_BUG_ON(!PageLocked(page));
 
-       __radix_tree_lookup(&mapping->page_tree, page->index, &node, &slot);
+       node = radix_tree_replace_clear_tags(&mapping->page_tree, page->index,
+                                                               shadow);
 
        if (shadow) {
                mapping->nrexceptional++;
@@ -135,23 +132,9 @@ static void page_cache_tree_delete(struct address_space *mapping,
        }
        mapping->nrpages--;
 
-       if (!node) {
-               /* Clear direct pointer tags in root node */
-               mapping->page_tree.gfp_mask &= __GFP_BITS_MASK;
-               radix_tree_replace_slot(slot, shadow);
+       if (!node)
                return;
-       }
-
-       /* Clear tree tags for the removed page */
-       index = page->index;
-       offset = index & RADIX_TREE_MAP_MASK;
-       for (tag = 0; tag < RADIX_TREE_MAX_TAGS; tag++) {
-               if (test_bit(offset, node->tags[tag]))
-                       radix_tree_tag_clear(&mapping->page_tree, index, tag);
-       }
 
-       /* Delete page, swap shadow entry */
-       radix_tree_replace_slot(slot, shadow);
        workingset_node_pages_dec(node);
        if (shadow)
                workingset_node_shadows_inc(node);