diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/btrfs-device.asciidoc | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/Documentation/btrfs-device.asciidoc b/Documentation/btrfs-device.asciidoc index 1e3b3a39..58dc9b00 100644 --- a/Documentation/btrfs-device.asciidoc +++ b/Documentation/btrfs-device.asciidoc @@ -98,7 +98,7 @@ remain as such. Reloading the kernel module will drop this information. There's an alternative way of mounting multiple-device filesystem without the need for prior scanning. See the mount option 'device'. -*stats* [-zs] <path>|<device>:: +*stats* [options] <path>|<device>:: Read and print the device IO error statistics for all devices of the given filesystem identified by <path> or for a single <device>. The filesystem must be mounted. See section *DEVICE STATS* for more information about the reported @@ -109,8 +109,10 @@ statistics and the meaning. -z|--reset:::: Print the stats and reset the values to zero afterwards. --s:::: -Set bit 6 of the return-code if any error statistics are non-zero. +-c|--check:::: +Check if the stats are all zeros and return 0 it it is so. Set bit 6 of the +return code if any of the statistics is no-zero. The error values is 65 if +reading stats from at least one device failed, otherwise it's 64. *usage* [options] <path> [<path>...]:: Show detailed information about internal allocations in devices. |