diff options
| author | Wang Shilong <wangsl-fnst@cn.fujitsu.com> | 2013-10-07 15:21:43 +0800 |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2013-10-16 08:23:12 -0400 |
| commit | d118b9490ba3ae567db81a0fe21058ca2dad7027 (patch) | |
| tree | 2907399922054c7bfecf97b5dc4327a282f37d43 /qgroup.c | |
| parent | 737a373638329138caa4fbd45299a8f4bab7925e (diff) | |
Btrfs-progs: list all qgroups impact given path(exclude ancestral qgroups)
This patch introduces '-f' option which can help you filter the qgroups
by the path name, you may use it like:
btrfs qgroup show -f <path>
For example:
qgroupid(2/0)
/ \
/ \
qgroupid(1/0)
/ \
/ \
/ \
qgroupid(0/1) qgroupid(0/2)
sub1 sub2
/ \
/ \
dir1 file1
If we use the command:
btrfs qgroup show -f sub1/dir1
The result will output
0/1 -- --
'-f' option helps you list all qgroups impact given path.
(exclude ancestral qgroups)
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>
Diffstat (limited to 'qgroup.c')
| -rw-r--r-- | qgroup.c | 16 |
1 files changed, 15 insertions, 1 deletions
@@ -468,6 +468,18 @@ static int filter_all_parent_insert(struct qgroup_lookup *sort_tree, return 0; } +static int filter_by_parent(struct btrfs_qgroup *bq, u64 data) +{ + struct btrfs_qgroup *qgroup = + (struct btrfs_qgroup *)(unsigned long)data; + + if (data == 0) + return 0; + if (qgroup->qgroupid == bq->qgroupid) + return 1; + return 0; +} + static int filter_by_all_parent(struct btrfs_qgroup *bq, u64 data) { struct qgroup_lookup lookup; @@ -502,6 +514,7 @@ static int filter_by_all_parent(struct btrfs_qgroup *bq, u64 data) } static btrfs_qgroup_filter_func all_filter_funcs[] = { + [BTRFS_QGROUP_FILTER_PARENT] = filter_by_parent, [BTRFS_QGROUP_FILTER_ALL_PARENT] = filter_by_all_parent, }; @@ -586,7 +599,8 @@ static void pre_process_filter_set(struct qgroup_lookup *lookup, for (i = 0; i < set->nfilters; i++) { - if (set->filters[i].filter_func == filter_by_all_parent) { + if (set->filters[i].filter_func == filter_by_all_parent + || set->filters[i].filter_func == filter_by_parent) { qgroup_for_filter = qgroup_tree_search(lookup, set->filters[i].data); set->filters[i].data = |