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btrfs-progs: qgroup: cleanup __qgroup_search 

Replace the if statement with the switch statement, and return the
appropriate value for the future use rather than directly exit.

Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
master
Lu Fengqi 2017-11-13 13:33:16 +08:00 committed by David Sterba
parent f0445b8a34
commit b114f7b537
1 changed files with 26 additions and 22 deletions
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48
qgroup.c
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@ -1046,8 +1046,10 @@ static int __qgroups_search(int fd, struct qgroup_lookup *qgroup_lookup)
struct btrfs_ioctl_search_header *sh;
unsigned long off = 0;
unsigned int i;
struct btrfs_qgroup_status_item *si;
struct btrfs_qgroup_info_item *info;
struct btrfs_qgroup_limit_item *limit;
u64 flags;
u64 qgroupid;
u64 qgroupid1;
@ -1092,44 +1094,47 @@ static int __qgroups_search(int fd, struct qgroup_lookup *qgroup_lookup)
off);
off += sizeof(*sh);
if (btrfs_search_header_type(sh)
== BTRFS_QGROUP_STATUS_KEY) {
struct btrfs_qgroup_status_item *si;
u64 flags;
switch (btrfs_search_header_type(sh)) {
case BTRFS_QGROUP_STATUS_KEY:
si = (struct btrfs_qgroup_status_item *)
(args.buf + off);
flags = btrfs_stack_qgroup_status_flags(si);
print_status_flag_warning(flags);
} else if (btrfs_search_header_type(sh)
== BTRFS_QGROUP_INFO_KEY) {
break;
case BTRFS_QGROUP_INFO_KEY:
qgroupid = btrfs_search_header_offset(sh);
info = (struct btrfs_qgroup_info_item *)
(args.buf + off);
update_qgroup_info(qgroup_lookup, qgroupid,
info);
} else if (btrfs_search_header_type(sh)
== BTRFS_QGROUP_LIMIT_KEY) {
ret = update_qgroup_info(qgroup_lookup,
qgroupid, info);
break;
case BTRFS_QGROUP_LIMIT_KEY:
qgroupid = btrfs_search_header_offset(sh);
limit = (struct btrfs_qgroup_limit_item *)
(args.buf + off);
update_qgroup_limit(qgroup_lookup, qgroupid,
limit);
} else if (btrfs_search_header_type(sh)
== BTRFS_QGROUP_RELATION_KEY) {
ret = update_qgroup_limit(qgroup_lookup,
qgroupid, limit);
break;
case BTRFS_QGROUP_RELATION_KEY:
qgroupid = btrfs_search_header_offset(sh);
qgroupid1 = btrfs_search_header_objectid(sh);
if (qgroupid < qgroupid1)
goto skip;
break;
ret = update_qgroup_relation(qgroup_lookup,
qgroupid, qgroupid1);
break;
default:
return ret;
}
if (ret)
return ret;
update_qgroup_relation(qgroup_lookup, qgroupid,
qgroupid1);
} else
goto done;
skip:
off += btrfs_search_header_len(sh);
/*
@ -1151,7 +1156,6 @@ skip:
break;
}
done:
return ret;
}