[PATCH 7/9] Btrfs-progs: list all qgroups impact given path(exclude ancestral qgroups)
From: Miao Xie <hidden>
Date: 2012-12-06 09:49:46
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Wang Shilong <redacted>
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 <redacted>
Signed-off-by: Miao Xie <redacted>
---
cmds-qgroup.c | 14 ++++++++++++--
qgroup.c | 16 +++++++++++++++-
qgroup.h | 1 +
3 files changed, 28 insertions(+), 3 deletions(-)
diff --git a/cmds-qgroup.c b/cmds-qgroup.c
index b6cdb53..9447179 100644
--- a/cmds-qgroup.c
+++ b/cmds-qgroup.c@@ -207,6 +207,8 @@ static const char * const cmd_qgroup_show_usage[] = { "-e print max exclusive size of qgroup", "-F list all qgroups which impact the given path" "(include ancestral qgroups)", + "-f list all qgroups which impact the given path" + "(exclude ancestral qgroups)", NULL };
@@ -224,7 +226,7 @@ static int cmd_qgroup_show(int argc, char **argv) optind = 1; while (1) { - c = getopt(argc, argv, "pcleF"); + c = getopt(argc, argv, "pcleFf"); if (c < 0) break;
@@ -248,6 +250,9 @@ static int cmd_qgroup_show(int argc, char **argv) case 'F': filter_flag |= 0x1; break; + case 'f': + filter_flag |= 0x2; + break; default: usage(cmd_qgroup_show_usage); }
@@ -263,9 +268,14 @@ static int cmd_qgroup_show(int argc, char **argv) } if (filter_flag) { qgroupid = btrfs_get_path_rootid(fd); - btrfs_qgroup_setup_filter(&filter_set, + if (filter_flag & 0x1) + btrfs_qgroup_setup_filter(&filter_set, BTRFS_QGROUP_FILTER_ALL_PARENT, qgroupid); + if (filter_flag & 0x2) + btrfs_qgroup_setup_filter(&filter_set, + BTRFS_QGROUP_FILTER_PARENT, + qgroupid); } ret = btrfs_show_qgroups(fd, filter_set); if (ret < 0) {
diff --git a/qgroup.c b/qgroup.c
index 6cb71e9..b8640dc 100644
--- a/qgroup.c
+++ b/qgroup.c@@ -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 =
diff --git a/qgroup.h b/qgroup.h
index 30844fe..d1165fd 100644
--- a/qgroup.h
+++ b/qgroup.h@@ -49,6 +49,7 @@ enum btrfs_qgroup_column_enum { }; enum btrfs_qgroup_filter_enum { + BTRFS_QGROUP_FILTER_PARENT, BTRFS_QGROUP_FILTER_ALL_PARENT, BTRFS_QGROUP_FILTER_MAX, };
--
1.7.11.7