On 28.11.18 г. 5:21 ч., Lu Fengqi wrote:
> The @found is always false when it comes to the if branch. Besides, the
> bool type is more suitable for @found.
Well if you are ranging the type of found variable it also makes sense
to change the return value of the function to bool as well.
>
> Signed-off-by: Lu Fengqi <lufq.f...@cn.fujitsu.com>
> ---
> fs/btrfs/extent_io.c | 7 +++----
> 1 file changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
> index 582b4b1c41e0..b4ee3399be96 100644
> --- a/fs/btrfs/extent_io.c
> +++ b/fs/btrfs/extent_io.c
> @@ -1461,7 +1461,7 @@ static noinline u64 find_delalloc_range(struct
> extent_io_tree *tree,
> struct rb_node *node;
> struct extent_state *state;
> u64 cur_start = *start;
> - u64 found = 0;
> + bool found = false;
> u64 total_bytes = 0;
>
> spin_lock(&tree->lock);
> @@ -1472,8 +1472,7 @@ static noinline u64 find_delalloc_range(struct
> extent_io_tree *tree,
> */
> node = tree_search(tree, cur_start);
> if (!node) {
> - if (!found)
> - *end = (u64)-1;
> + *end = (u64)-1;
> goto out;
> }
>
> @@ -1493,7 +1492,7 @@ static noinline u64 find_delalloc_range(struct
> extent_io_tree *tree,
> *cached_state = state;
> refcount_inc(&state->refs);
> }
> - found++;
> + found = true;
> *end = state->end;
> cur_start = state->end + 1;
> node = rb_next(node);
>
