diff options
| author | Wang Shilong <wangsl-fnst@cn.fujitsu.com> | 2013-10-07 15:21:42 +0800 |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2013-10-16 08:23:12 -0400 |
| commit | 737a373638329138caa4fbd45299a8f4bab7925e (patch) | |
| tree | 3187bbbe6b3b7985c42ec9ac97ddc30a689b9379 /cmds-qgroup.c | |
| parent | ae26ff16f85aa6604a8b0d4c7065a3b02c1c78d1 (diff) | |
Btrfs-progs: list all qgroups impact given path(include 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 -- --
1/0 -- --
2/0 -- --
'-F' option help you list all qgroups impact given path.
(include 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 'cmds-qgroup.c')
| -rw-r--r-- | cmds-qgroup.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/cmds-qgroup.c b/cmds-qgroup.c index fc9ad2f8..7c6c9176 100644 --- a/cmds-qgroup.c +++ b/cmds-qgroup.c @@ -202,12 +202,14 @@ static int cmd_qgroup_destroy(int argc, char **argv) } static const char * const cmd_qgroup_show_usage[] = { - "btrfs qgroup show -pcre <path>", - "Show all subvolume quota groups.", + "btrfs qgroup show -pcreF <path>", + "Show subvolume quota groups.", "-p print parent qgroup id", "-c print child qgroup id", "-r print max referenced size of qgroup", "-e print max exclusive size of qgroup", + "-F list all qgroups which impact the given path" + "(include ancestral qgroups)", NULL }; @@ -219,10 +221,15 @@ static int cmd_qgroup_show(int argc, char **argv) int e; DIR *dirstream = NULL; int c; + u64 qgroupid; + int filter_flag = 0; + + struct btrfs_qgroup_filter_set *filter_set; + filter_set = btrfs_qgroup_alloc_filter_set(); optind = 1; while (1) { - c = getopt(argc, argv, "pcre"); + c = getopt(argc, argv, "pcreF"); if (c < 0) break; switch (c) { @@ -242,6 +249,9 @@ static int cmd_qgroup_show(int argc, char **argv) btrfs_qgroup_setup_print_column( BTRFS_QGROUP_MAX_EXCL); break; + case 'F': + filter_flag |= 0x1; + break; default: usage(cmd_qgroup_show_usage); } @@ -256,7 +266,13 @@ static int cmd_qgroup_show(int argc, char **argv) return 1; } - ret = btrfs_show_qgroups(fd); + if (filter_flag) { + qgroupid = btrfs_get_path_rootid(fd); + btrfs_qgroup_setup_filter(&filter_set, + BTRFS_QGROUP_FILTER_ALL_PARENT, + qgroupid); + } + ret = btrfs_show_qgroups(fd, filter_set); e = errno; close_file_or_dir(fd, dirstream); if (ret < 0) |