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btrfs-progs: qgroup: allow passing options to qgroup remove

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According to the documentation, btrfs qgroup remove takes the same
options as qgroup assign, i.e., --rescan and --no-rescan. However,
currently no options are accepted. Activate option handling also for
qgroup remove, so that automatic rescan can be disabled by the user.

Signed-off-by: Michael Lass <bevan@bi-co.net>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Michael Lass 2020-02-02 15:45:42 +01:00 committed by David Sterba
parent 831b6fb5bd
commit 8d03e630e9
2 changed files with 34 additions and 28 deletions
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9
Documentation/btrfs-qgroup.asciidoc
View File

@ -89,7 +89,14 @@ the btrfs filesystem identified by <path>.
+
`Options`
+
The same as *assign* subcommand.
--rescan::::
(default since: 4.19) Automatically schedule quota rescan if the removed qgroup
relation would lead to quota inconsistency. See 'QUOTA RESCAN' for more
information.
--no-rescan::::
Explicitly ask not to do a rescan, even if the removal will make the quotas
inconsistent. This may be useful for repeated calls where the rescan would add
unnecessary overhead.
*show* [options] <path>::
Show all qgroups in the btrfs filesystem identified by <path>.

53
cmds/qgroup.c
View File

@ -45,34 +45,30 @@ static int _cmd_qgroup_assign(const struct cmd_struct *cmd, int assign,
struct btrfs_ioctl_qgroup_assign_args args;
DIR *dirstream = NULL;
if (assign) {
optind = 0;
while (1) {
enum { GETOPT_VAL_RESCAN = 256, GETOPT_VAL_NO_RESCAN };
static const struct option long_options[] = {
{ "rescan", no_argument, NULL,
GETOPT_VAL_RESCAN },
{ "no-rescan", no_argument, NULL,
GETOPT_VAL_NO_RESCAN },
{ NULL, 0, NULL, 0 }
};
int c = getopt_long(argc, argv, "", long_options, NULL);
optind = 0;
while (1) {
enum { GETOPT_VAL_RESCAN = 256, GETOPT_VAL_NO_RESCAN };
static const struct option long_options[] = {
{ "rescan", no_argument, NULL, GETOPT_VAL_RESCAN },
{ "no-rescan", no_argument, NULL, GETOPT_VAL_NO_RESCAN },
{ NULL, 0, NULL, 0 }
};
int c;
if (c < 0)
break;
switch (c) {
case GETOPT_VAL_RESCAN:
rescan = true;
break;
case GETOPT_VAL_NO_RESCAN:
rescan = false;
break;
default:
usage_unknown_option(cmd, argv);
}
c = getopt_long(argc, argv, "", long_options, NULL);
if (c < 0)
break;
switch (c) {
case GETOPT_VAL_RESCAN:
rescan = true;
break;
case GETOPT_VAL_NO_RESCAN:
rescan = false;
break;
default:
usage_unknown_option(cmd, argv);
}
} else {
clean_args_no_options(cmd, argc, argv);
}
if (check_argc_exact(argc - optind, 3))
@ -180,8 +176,11 @@ static int cmd_qgroup_assign(const struct cmd_struct *cmd,
static DEFINE_SIMPLE_COMMAND(qgroup_assign, "assign");
static const char * const cmd_qgroup_remove_usage[] = {
"btrfs qgroup remove <src> <dst> <path>",
"btrfs qgroup remove [options] <src> <dst> <path>",
"Remove a child qgroup SRC from DST.",
"",
"--rescan schedule qutoa rescan if needed",
"--no-rescan don't schedule quota rescan",
NULL
};