#include "cmds-fi-usage.h"
#include "commands.h"
+#include "help.h"
+#include "mkfs/common.h"
static const char * const device_cmd_group_usage[] = {
"btrfs device <command> [<args>]",
return !!ret;
}
+#define COMMON_USAGE_REMOVE_DELETE \
+ "If 'missing' is specified for <device>, the first device that is", \
+ "described by the filesystem metadata, but not present at the mount", \
+ "time will be removed. (only in degraded mode)"
+
static const char * const cmd_device_remove_usage[] = {
"btrfs device remove <device>|<devid> [<device>|<devid>...] <path>",
"Remove a device from a filesystem",
+ "",
+ COMMON_USAGE_REMOVE_DELETE,
NULL
};
static const char * const cmd_device_delete_usage[] = {
"btrfs device delete <device>|<devid> [<device>|<devid>...] <path>",
- "Remove a device from a filesystem",
+ "Remove a device from a filesystem (alias of \"btrfs device remove\")",
+ "",
+ COMMON_USAGE_REMOVE_DELETE,
NULL
};
}
static const char * const cmd_device_stats_usage[] = {
- "btrfs device stats [-z] <path>|<device>",
- "Show current device IO stats.",
+ "btrfs device stats [options] <path>|<device>",
+ "Show device IO error statistics",
+ "Show device IO error statistics for all devices of the given filesystem",
+ "identified by PATH or DEVICE. The filesystem must be mounted.",
"",
+ "-c|--check return non-zero if any stat counter is not zero",
"-z|--reset show current stats and reset values to zero",
- "-s return non-zero if any stat counter is not zero",
NULL
};
int fdmnt;
int i;
int err = 0;
- int status = 0;
+ int check = 0;
__u64 flags = 0;
DIR *dirstream = NULL;
while (1) {
int c;
static const struct option long_options[] = {
+ {"check", no_argument, NULL, 'c'},
{"reset", no_argument, NULL, 'z'},
{NULL, 0, NULL, 0}
};
- c = getopt_long(argc, argv, "zs", long_options, NULL);
+ c = getopt_long(argc, argv, "cz", long_options, NULL);
if (c < 0)
break;
switch (c) {
+ case 'c':
+ check = 1;
+ break;
case 'z':
flags = BTRFS_DEV_STATS_RESET;
break;
- case 's':
- status = 1;
- break;
case '?':
default:
usage(cmd_device_stats_usage);
dev_stats[j].name,
(unsigned long long)
args.values[dev_stats[j].num]);
- if ((status == 1)
+ if ((check == 1)
&& (args.values[dev_stats[j].num] > 0))
err |= 64;
}
for (i = 0; i < devcount; i++) {
printf("%s, ID: %llu\n", devinfo[i].path, devinfo[i].devid);
- print_device_sizes(fd, &devinfo[i], unit_mode);
- print_device_chunks(fd, &devinfo[i], chunkinfo, chunkcount,
+ print_device_sizes(&devinfo[i], unit_mode);
+ print_device_chunks(&devinfo[i], chunkinfo, chunkcount,
unit_mode);
printf("\n");
}