From: Fan Chengniang <fancn.f...@cn.fujitsu.com>
add --qgroup-type option to specify qgroup type. Type
can be metadata, data or mixed.
Signed-off-by: Fan Chengniang <fancn.f...@cn.fujitsu.com>
Signed-off-by: Dongsheng Yang <yangds.f...@cn.fujitsu.com>
---
Documentation/btrfs-qgroup.txt | 5 +++++
cmds-qgroup.c | 37 ++++++++++++++++++++++++++++++++++---
2 files changed, 39 insertions(+), 3 deletions(-)
diff --git a/Documentation/btrfs-qgroup.txt b/Documentation/btrfs-qgroup.txt
index eadfe1c..7b07e97 100644
--- a/Documentation/btrfs-qgroup.txt
+++ b/Documentation/btrfs-qgroup.txt
@@ -45,6 +45,11 @@ Create a subvolume quota group.
+
For the '0/<subvolume id>' qgroup, a qgroup can be created even before the
subvolume created.
++
+--qgroup-type=<type>::::
+specify the <type> of qgroup to set qgroup limit.
++
+<attr> can be one of metadata, data, mixed.
*destroy* <qgroupid> <path>::
Destroy a qgroup.
diff --git a/cmds-qgroup.c b/cmds-qgroup.c
index 30f0851..23accdf 100644
--- a/cmds-qgroup.c
+++ b/cmds-qgroup.c
@@ -78,16 +78,45 @@ static int qgroup_create(int create, int argc, char **argv)
int ret = 0;
int fd;
int e;
- char *path = argv[2];
+ char *path = argv[argc - 1];
struct btrfs_ioctl_qgroup_create_args args;
DIR *dirstream = NULL;
+ __u8 qgroup_type = 0;
+ __u64 create_type;
- if (check_argc_exact(argc, 3))
+ optind = 1;
+ while (1) {
+ int c;
+ static const struct option long_options[] = {
+ {"qgroup-type", required_argument, NULL, 'q'},
+ {NULL, 0, NULL, 0}
+ };
+
+ c = getopt_long(argc, argv, "", long_options, NULL);
+ if (c < 0)
+ break;
+
+ switch (c) {
+ case 'q':
+ ret = btrfs_qgroup_set_qgroup_type(&qgroup_type,
optarg);
+ if (ret)
+ return -1;
+ break;
+ default:
+ return -1;
+ }
+ }
+
+ if (check_argc_exact(argc - optind, 2))
return -1;
memset(&args, 0, sizeof(args));
args.create = create;
- args.qgroupid = parse_qgroupid(argv[1]);
+ if (create && qgroup_type) {
+ create_type = qgroup_type;
+ args.create |= (create_type << BTRFS_QGROUP_TYPE_SHIFT);
+ }
+ args.qgroupid = parse_qgroupid(argv[argc - 2]);
fd = open_file_or_dir(path, &dirstream);
if (fd < 0) {
@@ -137,6 +166,8 @@ static int cmd_qgroup_remove(int argc, char **argv)
static const char * const cmd_qgroup_create_usage[] = {
"btrfs qgroup create <qgroupid> <path>",
"Create a subvolume quota group.",
+ "--qgroup-type=metadata,data,mixed",
+ " specify which qgroup type to set qgroup limit",
NULL
};
--
1.8.4.2
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