diff options
| author | David Sterba <dsterba@suse.com> | 2016-12-08 19:12:10 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2016-12-14 15:06:36 +0100 |
| commit | 01bafdbc90452a17a9de6095fcdf0a9adca98dd2 (patch) | |
| tree | 738a1dcb9625c71a8e7489db69e48165e54abca3 | |
| parent | 9468d9285ad5542855ae2963995f31036b9f943e (diff) | |
btrfs-progs: dev stats: add long option for -z
Signed-off-by: David Sterba <dsterba@suse.com>
| -rw-r--r-- | Documentation/btrfs-device.asciidoc | 2 | ||||
| -rw-r--r-- | cmds-device.c | 15 |
2 files changed, 13 insertions, 4 deletions
diff --git a/Documentation/btrfs-device.asciidoc b/Documentation/btrfs-device.asciidoc index d398b6d2..193e2734 100644 --- a/Documentation/btrfs-device.asciidoc +++ b/Documentation/btrfs-device.asciidoc @@ -105,7 +105,7 @@ STATS* for more information. + `Options` + --z:::: +-z|--reset:::: Print the stats and reset the values to zero afterwards. -s:::: diff --git a/cmds-device.c b/cmds-device.c index aeaaa1d9..ba0e4368 100644 --- a/cmds-device.c +++ b/cmds-device.c @@ -375,7 +375,7 @@ static const char * const cmd_device_stats_usage[] = { "btrfs device stats [-z] <path>|<device>", "Show current device IO stats.", "", - "-z show current stats and reset values to zero", + "-z|--reset show current stats and reset values to zero", "-s return non-zero if any stat counter is not zero", NULL }; @@ -388,13 +388,22 @@ static int cmd_device_stats(int argc, char **argv) int ret; int fdmnt; int i; - int c; int err = 0; int status = 0; __u64 flags = 0; DIR *dirstream = NULL; - while ((c = getopt(argc, argv, "zs")) != -1) { + while (1) { + int c; + static const struct option long_options[] = { + {"reset", no_argument, NULL, 'z'}, + {NULL, 0, NULL, 0} + }; + + c = getopt_long(argc, argv, "zs", long_options, NULL); + if (c < 0) + break; + switch (c) { case 'z': flags = BTRFS_DEV_STATS_RESET; |