From d9352794dad9f28535439d85a815978878c141ab Mon Sep 17 00:00:00 2001 From: Lu Fengqi Date: Thu, 11 Oct 2018 13:40:38 +0800 Subject: 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: Lu Fengqi Reviewed-by: Nikolay Borisov Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/btrfs/delayed-ref.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'fs/btrfs/delayed-ref.c') diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c index 5d8f6d505d5a..5149165b49a4 100644 --- a/fs/btrfs/delayed-ref.c +++ b/fs/btrfs/delayed-ref.c @@ -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) -- cgit v1.2.3