[PATCH 4/7] dax: rename 'ret' to 'entry' in grab_mapping_entry

[Ross Zwisler]

No functional change.

Everywhere else that we get entries via get_unlocked_mapping_entry(), we
save it in 'entry' variables.  Just change this to be more descriptive.

Signed-off-by: Ross Zwisler <ross.zwis...@linux.intel.com>
---
 fs/dax.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/fs/dax.c b/fs/dax.c
index 8030f93..fed6a52 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -394,13 +394,13 @@ static void *get_unlocked_mapping_entry(struct 
address_space *mapping,
  */
 static void *grab_mapping_entry(struct address_space *mapping, pgoff_t index)
 {
-       void *ret, **slot;
+       void *entry, **slot;
 
 restart:
        spin_lock_irq(&mapping->tree_lock);
-       ret = get_unlocked_mapping_entry(mapping, index, &slot);
+       entry = get_unlocked_mapping_entry(mapping, index, &slot);
        /* No entry for given index? Make sure radix tree is big enough. */
-       if (!ret) {
+       if (!entry) {
                int err;
 
                spin_unlock_irq(&mapping->tree_lock);
@@ -408,10 +408,10 @@ restart:
                                mapping_gfp_mask(mapping) & ~__GFP_HIGHMEM);
                if (err)
                        return ERR_PTR(err);
-               ret = (void *)(RADIX_TREE_EXCEPTIONAL_ENTRY |
+               entry = (void *)(RADIX_TREE_EXCEPTIONAL_ENTRY |
                               RADIX_DAX_ENTRY_LOCK);
                spin_lock_irq(&mapping->tree_lock);
-               err = radix_tree_insert(&mapping->page_tree, index, ret);
+               err = radix_tree_insert(&mapping->page_tree, index, entry);
                radix_tree_preload_end();
                if (err) {
                        spin_unlock_irq(&mapping->tree_lock);
@@ -423,11 +423,11 @@ restart:
                /* Good, we have inserted empty locked entry into the tree. */
                mapping->nrexceptional++;
                spin_unlock_irq(&mapping->tree_lock);
-               return ret;
+               return entry;
        }
        /* Normal page in radix tree? */
-       if (!radix_tree_exceptional_entry(ret)) {
-               struct page *page = ret;
+       if (!radix_tree_exceptional_entry(entry)) {
+               struct page *page = entry;
 
                get_page(page);
                spin_unlock_irq(&mapping->tree_lock);
@@ -440,9 +440,9 @@ restart:
                }
                return page;
        }
-       ret = lock_slot(mapping, slot);
+       entry = lock_slot(mapping, slot);
        spin_unlock_irq(&mapping->tree_lock);
-       return ret;
+       return entry;
 }
 
 void dax_wake_mapping_entry_waiter(struct address_space *mapping,
-- 
2.9.0