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Subject[PATCH 6/7] btrfs: cleanup: removed unused 'btrfs_reada_detach'
Date
From: Sergei Trofimovich <slyfox@gentoo.org>

Found by uselex.rb:
> btrfs_reada_detach: [R]: exported from: fs/btrfs/btrfs.o fs/btrfs/built-in.o fs/btrfs/reada.o

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
---
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 e91ab9e..f35e086 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3861,7 +3861,6 @@ 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 1031b69..c41d470 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.
@@ -979,10 +979,3 @@ 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);
-}
--
1.8.3.2


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