btrfs-progs: change seen_fsid to hold fd and DIR

Change seen_fsid to hold fd and DIR in order to keep access to each fs.
This will be used for 'subvol delete --commit-after'.

Signed-off-by: Tomohiro Misono <misono.tomohiro@jp.fujitsu.com>
Reviewed-by: Qu Wenruo <quwenruo.btrfs@gmx.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/utils.c b/utils.c
index 3db8bdd1..9d20cab0 100644
--- a/utils.c
+++ b/utils.c
@@ -1804,7 +1804,8 @@ int is_seen_fsid(u8 *fsid, struct seen_fsid *seen_fsid_hash[])
 	return 0;
 }
 
-int add_seen_fsid(u8 *fsid, struct seen_fsid *seen_fsid_hash[])
+int add_seen_fsid(u8 *fsid, struct seen_fsid *seen_fsid_hash[],
+		int fd, DIR *dirstream)
 {
 	u8 hash = fsid[0];
 	int slot = hash % SEEN_FSID_HASH_SIZE;
@@ -1831,6 +1832,8 @@ insert:
 
 	alloc->next = NULL;
 	memcpy(alloc->fsid, fsid, BTRFS_FSID_SIZE);
+	alloc->fd = fd;
+	alloc->dirstream = dirstream;
 
 	if (seen)
 		seen->next = alloc;
@@ -1850,6 +1853,7 @@ void free_seen_fsid(struct seen_fsid *seen_fsid_hash[])
 		seen = seen_fsid_hash[slot];
 		while (seen) {
 			next = seen->next;
+			close_file_or_dir(seen->fd, seen->dirstream);
 			free(seen);
 			seen = next;
 		}