From 9b1daecf178bb7ff5be6e774853865080b721aac Mon Sep 17 00:00:00 2001 From: Stefan Behrens Date: Tue, 9 Apr 2013 19:08:33 +0200 Subject: Btrfs-progs: add a function to free subvol_uuid_search memory There was no way to free the memory that was used for the subvol_uuid_search functions. Since this is part of the libbtrfs, add such a cleanup function. Signed-off-by: Stefan Behrens --- send-utils.c | 23 +++++++++++++++++++++++ send-utils.h | 1 + 2 files changed, 24 insertions(+) diff --git a/send-utils.c b/send-utils.c index b1d3873..182778a 100644 --- a/send-utils.c +++ b/send-utils.c @@ -304,6 +304,29 @@ out: return ret; } +/* + * It's safe to call this function even without the subvol_uuid_search_init() + * call before as long as the subvol_uuid_search structure is all-zero. + */ +void subvol_uuid_search_finit(struct subvol_uuid_search *s) +{ + struct rb_root *root = &s->root_id_subvols; + struct rb_node *node; + + while ((node = rb_first(root))) { + struct subvol_info *entry = + rb_entry(node, struct subvol_info, rb_root_id_node); + + free(entry->path); + rb_erase(node, root); + free(entry); + } + + s->root_id_subvols = RB_ROOT; + s->local_subvols = RB_ROOT; + s->received_subvols = RB_ROOT; + s->path_subvols = RB_ROOT; +} char *path_cat(const char *p1, const char *p2) { diff --git a/send-utils.h b/send-utils.h index 199dd03..78abf94 100644 --- a/send-utils.h +++ b/send-utils.h @@ -62,6 +62,7 @@ struct subvol_uuid_search { }; int subvol_uuid_search_init(int mnt_fd, struct subvol_uuid_search *s); +void subvol_uuid_search_finit(struct subvol_uuid_search *s); struct subvol_info *subvol_uuid_search(struct subvol_uuid_search *s, u64 root_id, const u8 *uuid, u64 transid, const char *path, -- cgit v1.2.1