Remove the function btrfs_reada_detach() that is not used anywhere.
This was partially found by using a static code analysis program called cppcheck.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@xxxxxxxxxxxxxxxxxx>
---
fs/btrfs/ctree.h | 1 -
fs/btrfs/reada.c | 9 +--------
2 files changed, 1 insertion(+), 9 deletions(-)
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index fe69edd..030a7b5 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -4111,7 +4111,6 @@ struct reada_control {
struct reada_control *btrfs_reada_add(struct btrfs_root *root,
struct btrfs_key *start, struct btrfs_key *end);
int btrfs_reada_wait(void *handle);
-void btrfs_reada_detach(void *handle);
int btree_readahead_hook(struct btrfs_root *root, struct extent_buffer *eb,
u64 start, int err);
diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c
index b63ae20..97073c0c 100644
--- a/fs/btrfs/reada.c
+++ b/fs/btrfs/reada.c
@@ -37,7 +37,7 @@
* To trigger a readahead, btrfs_reada_add must be called. It will start
* a read ahead for the given range [start, end) on tree root. The returned
* handle can either be used to wait on the readahead to finish
- * (btrfs_reada_wait), or to send it to the background (btrfs_reada_detach).
+ * (btrfs_reada_wait).
*
* The read ahead works as follows:
* On btrfs_reada_add, the root of the tree is inserted into a radix_tree.
@@ -986,10 +986,3 @@ int btrfs_reada_wait(void *handle)
return 0;
}
#endif
-
-void btrfs_reada_detach(void *handle)
-{
- struct reada_control *rc = handle;
-
- kref_put(&rc->refcnt, reada_control_release);
-}
--
1.7.10.4
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