[PATCH] fs: btrfs: remove the usage of undeclared fs_mutex variable

[Qu Wenruo]

On 2022/9/27 17:55, Pankaj Raghav wrote:
> This line probably got in by mistake as there is no fs_mutex member in
> the btrfs_fs_info struct.
> 
> Signed-off-by: Pankaj Raghav <p.raghav at samsung.com>

Which branch is the code based on?

I don't believe it's upstream, as such compiling error should be exposed 
very easily.

> ---
>   fs/btrfs/disk-io.c | 2 --
>   1 file changed, 2 deletions(-)
> 
> diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c

Furthermore at current upstream HEAD a1375562c0a8 ("Merge tag 
'x86_urgent_for_v6.0-rc8' of 
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip"), there is no 
btrfs_new_fs_info() function defined anyway.

THanks,
Qu

> index 8043abc1bd..c80f8e8028 100644
> --- a/fs/btrfs/disk-io.c
> +++ b/fs/btrfs/disk-io.c
> @@ -782,8 +782,6 @@ struct btrfs_fs_info *btrfs_new_fs_info(void)
>   	fs_info->fs_root_tree = RB_ROOT;
>   	cache_tree_init(&fs_info->mapping_tree.cache_tree);
>   
> -	mutex_init(&fs_info->fs_mutex);
> -
>   	return fs_info;
>   free_all:
>   	btrfs_free_fs_info(fs_info);