diff options
| -rw-r--r-- | Documentation/btrfs-scrub.txt | 6 | ||||
| -rw-r--r-- | cmds-scrub.c | 4 |
2 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/btrfs-scrub.txt b/Documentation/btrfs-scrub.txt index 7b27d63c..b8d3b658 100644 --- a/Documentation/btrfs-scrub.txt +++ b/Documentation/btrfs-scrub.txt @@ -18,7 +18,7 @@ SUBCOMMAND ---------- *start* [-BdqrRf] [-c <ioprio_class> -n <ioprio_classdata>] <path>|<device>:: Start a scrub on all devices of the filesystem identified by <path> or on -a single <device>. +a single <device>. If a scrub is already running, the new one fails. + Without options, scrub is started as a background process. Progress can be obtained with the *scrub status* command. Scrubbing @@ -47,8 +47,8 @@ manpage). -n <ioprio_classdata>:::: Set IO priority classdata (see `ionice`(1) manpage). -f:::: -force to check whether scrub has started or resumed in userspace. -this is useful when scrub stat record file is damaged. +Force starting new scrub even if a scrub is already running. +This is useful when scrub stat record file is damaged. *cancel* <path>|<device>:: If a scrub is running on the filesystem identified by <path>, cancel it. diff --git a/cmds-scrub.c b/cmds-scrub.c index a604b252..1d93942f 100644 --- a/cmds-scrub.c +++ b/cmds-scrub.c @@ -1527,7 +1527,7 @@ out: static const char * const cmd_scrub_start_usage[] = { "btrfs scrub start [-BdqrRf] [-c ioprio_class -n ioprio_classdata] <path>|<device>", - "Start a new scrub", + "Start a new scrub. If a scrub is already running, the new one fails.", "", "-B do not background", "-d stats per device (-B only)", @@ -1536,7 +1536,7 @@ static const char * const cmd_scrub_start_usage[] = { "-R raw print mode, print full data instead of summary" "-c set ioprio class (see ionice(1) manpage)", "-n set ioprio classdata (see ionice(1) manpage)", - "-f force to skip checking whether scrub has started/resumed in userspace ", + "-f force starting new scrub even if a scrub is already running.", " this is useful when scrub stats record file is damaged", NULL }; |