No functional change.
The static functions put_locked_mapping_entry() and
put_unlocked_mapping_entry() will soon be used in error cases in
grab_mapping_entry(), so move their definitions above this function.
Signed-off-by: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
Reviewed-by: Jan Kara <jack@xxxxxxx>
---
fs/dax.c | 50 +++++++++++++++++++++++++-------------------------
1 file changed, 25 insertions(+), 25 deletions(-)
diff --git a/fs/dax.c b/fs/dax.c
index c45cc4d..0582c7c 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -382,6 +382,31 @@ static void *get_unlocked_mapping_entry(struct address_space *mapping,
}
}
+static void put_locked_mapping_entry(struct address_space *mapping,
+ pgoff_t index, void *entry)
+{
+ if (!radix_tree_exceptional_entry(entry)) {
+ unlock_page(entry);
+ put_page(entry);
+ } else {
+ dax_unlock_mapping_entry(mapping, index);
+ }
+}
+
+/*
+ * Called when we are done with radix tree entry we looked up via
+ * get_unlocked_mapping_entry() and which we didn't lock in the end.
+ */
+static void put_unlocked_mapping_entry(struct address_space *mapping,
+ pgoff_t index, void *entry)
+{
+ if (!radix_tree_exceptional_entry(entry))
+ return;
+
+ /* We have to wake up next waiter for the radix tree entry lock */
+ dax_wake_mapping_entry_waiter(mapping, index, entry, false);
+}
+
/*
* Find radix tree entry at given index. If it points to a page, return with
* the page locked. If it points to the exceptional entry, return with the
@@ -486,31 +511,6 @@ void dax_unlock_mapping_entry(struct address_space *mapping, pgoff_t index)
dax_wake_mapping_entry_waiter(mapping, index, entry, false);
}
-static void put_locked_mapping_entry(struct address_space *mapping,
- pgoff_t index, void *entry)
-{
- if (!radix_tree_exceptional_entry(entry)) {
- unlock_page(entry);
- put_page(entry);
- } else {
- dax_unlock_mapping_entry(mapping, index);
- }
-}
-
-/*
- * Called when we are done with radix tree entry we looked up via
- * get_unlocked_mapping_entry() and which we didn't lock in the end.
- */
-static void put_unlocked_mapping_entry(struct address_space *mapping,
- pgoff_t index, void *entry)
-{
- if (!radix_tree_exceptional_entry(entry))
- return;
-
- /* We have to wake up next waiter for the radix tree entry lock */
- dax_wake_mapping_entry_waiter(mapping, index, entry, false);
-}
-
/*
* Delete exceptional DAX entry at @index from @mapping. Wait for radix tree
* entry to get unlocked before deleting it.
--
2.7.4
--
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