[PATCH] btrfs: Remove redundant code

[Nikolay Borisov <nborisov@suse.com>]

insert_into_bitmap has only one caller which always allocates the info struct
passed. As such remove the any NULL checks for info and also remove code
to allocate info in case it was NULL.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
---
 fs/btrfs/free-space-cache.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index c5e6180cdb8c..fd24fb99d6dc 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -2101,7 +2101,7 @@ static int insert_into_bitmap(struct btrfs_free_space_ctl *ctl,
 		goto again;
 
 new_bitmap:
-	if (info && info->bitmap) {
+	if (info->bitmap) {
 		add_new_bitmap(ctl, info, offset);
 		added = 1;
 		info = NULL;
@@ -2109,17 +2109,6 @@ static int insert_into_bitmap(struct btrfs_free_space_ctl *ctl,
 	} else {
 		spin_unlock(&ctl->tree_lock);
 
-		/* no pre-allocated info, allocate a new one */
-		if (!info) {
-			info = kmem_cache_zalloc(btrfs_free_space_cachep,
-						 GFP_NOFS);
-			if (!info) {
-				spin_lock(&ctl->tree_lock);
-				ret = -ENOMEM;
-				goto out;
-			}
-		}
-
 		/* allocate the bitmap */
 		info->bitmap = kzalloc(PAGE_SIZE, GFP_NOFS);
 		spin_lock(&ctl->tree_lock);
-- 
2.7.4