[PATCH] Btrfs: remove non-sense btrfs_error_discard_extent() function

[PATCH] Btrfs: remove non-sense btrfs_error_discard_extent() function

[Filipe Manana]

It doesn't do anything special, it just calls btrfs_discard_extent(),
so just remove it.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
---
 fs/btrfs/ctree.h            |  4 ++--
 fs/btrfs/extent-tree.c      | 10 ++--------
 fs/btrfs/free-space-cache.c |  4 ++--
 3 files changed, 6 insertions(+), 12 deletions(-)

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index c7e5f2a..399a4e0 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3429,8 +3429,8 @@ void btrfs_put_block_group_cache(struct btrfs_fs_info *info);
 u64 btrfs_account_ro_block_groups_free_space(struct btrfs_space_info *sinfo);
 int btrfs_error_unpin_extent_range(struct btrfs_root *root,
 				   u64 start, u64 end);
-int btrfs_error_discard_extent(struct btrfs_root *root, u64 bytenr,
-			       u64 num_bytes, u64 *actual_bytes);
+int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr,
+			 u64 num_bytes, u64 *actual_bytes);
 int btrfs_force_chunk_alloc(struct btrfs_trans_handle *trans,
 			    struct btrfs_root *root, u64 type);
 int btrfs_trim_fs(struct btrfs_root *root, struct fstrim_range *range);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index fc74a9b..18b63acc 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1891,8 +1891,8 @@ static int btrfs_issue_discard(struct block_device *bdev,
 	return blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_NOFS, 0);
 }
 
-static int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr,
-				u64 num_bytes, u64 *actual_bytes)
+int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr,
+			 u64 num_bytes, u64 *actual_bytes)
 {
 	int ret;
 	u64 discarded_bytes = 0;
@@ -9710,12 +9710,6 @@ int btrfs_error_unpin_extent_range(struct btrfs_root *root, u64 start, u64 end)
 	return unpin_extent_range(root, start, end, false);
 }
 
-int btrfs_error_discard_extent(struct btrfs_root *root, u64 bytenr,
-			       u64 num_bytes, u64 *actual_bytes)
-{
-	return btrfs_discard_extent(root, bytenr, num_bytes, actual_bytes);
-}
-
 int btrfs_trim_fs(struct btrfs_root *root, struct fstrim_range *range)
 {
 	struct btrfs_fs_info *fs_info = root->fs_info;
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index edf32c5..d6c03f7 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -2966,8 +2966,8 @@ static int do_trimming(struct btrfs_block_group_cache *block_group,
 	spin_unlock(&block_group->lock);
 	spin_unlock(&space_info->lock);
 
-	ret = btrfs_error_discard_extent(fs_info->extent_root,
-					 start, bytes, &trimmed);
+	ret = btrfs_discard_extent(fs_info->extent_root,
+				   start, bytes, &trimmed);
 	if (!ret)
 		*total_trimmed += trimmed;
 
-- 
2.1.3