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Btrfs-progs: introduce '-r' option to print max referenced size of qgroups 

This patch introduces '-r' option to print max referenced size of qgroups.
You may use it like:

		btrfs qgroup show -r <path>

Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
master
Wang Shilong 2013-10-07 15:21:40 +08:00 committed by Chris Mason
parent 14b6c32037
commit 0944502866
3 changed files with 15 additions and 2 deletions
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9
cmds-qgroup.c
View File

@ -202,10 +202,11 @@ static int cmd_qgroup_destroy(int argc, char **argv)
}
static const char * const cmd_qgroup_show_usage[] = {
"btrfs qgroup show -pc <path>",
"btrfs qgroup show -pcr <path>",
"Show all subvolume quota groups.",
"-p print parent qgroup id",
"-c print child qgroup id",
"-r print max referenced size of qgroup",
NULL
};
@ -220,7 +221,7 @@ static int cmd_qgroup_show(int argc, char **argv)
optind = 1;
while (1) {
c = getopt(argc, argv, "pc");
c = getopt(argc, argv, "pcr");
if (c < 0)
break;
switch (c) {
@ -232,6 +233,10 @@ static int cmd_qgroup_show(int argc, char **argv)
btrfs_qgroup_setup_print_column(
BTRFS_QGROUP_CHILD);
break;
case 'r':
btrfs_qgroup_setup_print_column(
BTRFS_QGROUP_MAX_RFER);
break;
default:
usage(cmd_qgroup_show_usage);
}

7
qgroup.c
View File

@ -87,6 +87,10 @@ struct {
.column_name = "Excl",
.need_print = 1,
},
{ .name = "max_rfer",
.column_name = "Max_rfer",
.need_print = 0,
},
{
.name = "parent",
.column_name = "Parent",
@ -166,6 +170,9 @@ static void print_qgroup_column(struct btrfs_qgroup *qgroup,
case BTRFS_QGROUP_PARENT:
print_parent_column(qgroup);
break;
case BTRFS_QGROUP_MAX_RFER:
printf("%llu", qgroup->max_rfer);
break;
case BTRFS_QGROUP_CHILD:
print_child_column(qgroup);
break;

1
qgroup.h
View File

@ -26,6 +26,7 @@ enum btrfs_qgroup_column_enum {
BTRFS_QGROUP_QGROUPID,
BTRFS_QGROUP_RFER,
BTRFS_QGROUP_EXCL,
BTRFS_QGROUP_MAX_RFER,
BTRFS_QGROUP_PARENT,
BTRFS_QGROUP_CHILD,
BTRFS_QGROUP_ALL,