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Commit d9352794 authored by Lu Fengqi's avatar Lu Fengqi Committed by David Sterba
Browse files

btrfs: switch return_bigger to bool in find_ref_head 



Using bool is more suitable than int here, and add the comment about the
return_bigger.

Signed-off-by: default avatarLu Fengqi <lufq.fnst@cn.fujitsu.com>
Reviewed-by: default avatarNikolay Borisov <nborisov@suse.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 7c861627

fs/btrfs/delayed-ref.c

+6 −5
Original line number Diff line number Diff line
@@ -168,11 +168,12 @@ static struct btrfs_delayed_ref_node* tree_insert(struct rb_root_cached *root, 
 * find an head entry based on bytenr. This returns the delayed ref

 * head if it was able to find one, or NULL if nothing was in that spot.

 * If return_bigger is given, the next bigger entry is returned if no exact

 * match is found.

 * match is found. But if no bigger one is found then the first node of the

 * ref head tree will be returned.

 */

static struct btrfs_delayed_ref_head* find_ref_head(

		struct btrfs_delayed_ref_root *dr, u64 bytenr,

		int return_bigger)

		bool return_bigger)

{

	struct rb_root *root = &dr->href_root.rb_root;

	struct rb_node *n;
@@ -359,12 +360,12 @@ struct btrfs_delayed_ref_head *btrfs_select_ref_head( 


again:

	start = delayed_refs->run_delayed_start;

	head = find_ref_head(delayed_refs, start, 1);

	head = find_ref_head(delayed_refs, start, true);

	if (!head && !loop) {

		delayed_refs->run_delayed_start = 0;

		start = 0;

		loop = true;

		head = find_ref_head(delayed_refs, start, 1);

		head = find_ref_head(delayed_refs, start, true);

		if (!head)

			return NULL;

	} else if (!head && loop) {
@@ -905,7 +906,7 @@ int btrfs_add_delayed_extent_op(struct btrfs_fs_info *fs_info, 
struct btrfs_delayed_ref_head *

btrfs_find_delayed_ref_head(struct btrfs_delayed_ref_root *delayed_refs, u64 bytenr)

{

	return find_ref_head(delayed_refs, bytenr, 0);

	return find_ref_head(delayed_refs, bytenr, false);

}



void __cold btrfs_delayed_ref_exit(void)