[PATCH 1/3] btrfs: Initialize btrfs_io_ctl instead of memsetting it

[Goldwyn Rodrigues]

From: Goldwyn Rodrigues <rgold...@suse.com>

io_ctl_init() memsets it to zero anyways. However, I presume the
memset was added to avoid the WARN_ON in io_ctl_init().

Signed-off-by: Goldwyn Rodrigues <rgold...@suse.com>
---
 fs/btrfs/free-space-cache.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 74aa552f4793..c813378ebf08 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -3544,13 +3544,12 @@ int btrfs_write_out_ino_cache(struct btrfs_root *root,
        struct btrfs_fs_info *fs_info = root->fs_info;
        struct btrfs_free_space_ctl *ctl = root->free_ino_ctl;
        int ret;
-       struct btrfs_io_ctl io_ctl;
+       struct btrfs_io_ctl io_ctl = {0};
        bool release_metadata = true;
 
        if (!btrfs_test_opt(fs_info, INODE_MAP_CACHE))
                return 0;
 
-       memset(&io_ctl, 0, sizeof(io_ctl));
        ret = __btrfs_write_out_cache(root, inode, ctl, NULL, &io_ctl, trans);
        if (!ret) {
                /*
-- 
2.16.4