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| author | Karel Zak | 2008-09-06 14:54:01 +0200 |
|---|---|---|
| committer | Karel Zak | 2008-09-06 14:54:01 +0200 |
| commit | 030d18fd2a75784359a970d0560446952575f024 (patch) | |
| tree | 83c481dee176e2033f648dd45ee053d5a9e7e8d2 /schedutils/ionice.1 | |
| parent | ionice: let -p handle multiple PIDs (diff) | |
| download | kernel-qcow2-util-linux-030d18fd2a75784359a970d0560446952575f024.tar.gz kernel-qcow2-util-linux-030d18fd2a75784359a970d0560446952575f024.tar.xz kernel-qcow2-util-linux-030d18fd2a75784359a970d0560446952575f024.zip | |
ionice: add strtol() checks, cleanup usage text and man page
* cleanup usage() output
* check strtol(); don't ignore wrong command line options
The original ionice design was a little broken, because it was
possible to specify a PID and also a COMMAND:
ionice -c2 -p 123 /bin/foo
but the command /bin/foo was executed without requested scheduling
class. That's stupid behaviour.
Now you have to use "-p PID" **or** COMMAND, but not both. Nothing is
ignored and all options are checked.
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'schedutils/ionice.1')
| -rw-r--r-- | schedutils/ionice.1 | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/schedutils/ionice.1 b/schedutils/ionice.1 index 67fbc1d04..2eca2b8b1 100644 --- a/schedutils/ionice.1 +++ b/schedutils/ionice.1 @@ -2,7 +2,9 @@ .SH NAME ionice \- get/set program io scheduling class and priority .SH SYNOPSIS -.BI "ionice [\-p " pid "] [\-c " class "] [\-n " classdata " ] [\-t] [COMMAND [ARG ...]]" +.BI "ionice [[\-c " class "] [\-n " classdata " ] [\-t]] \-p " PID " [" PID " ...]" + +.BI "ionice [\-c " class "] [\-n " classdata " ] [\-t] COMMAND [ARG ...]" .SH DESCRIPTION This program sets or gets the io scheduling class and priority for a program. @@ -41,11 +43,11 @@ The scheduling class data. This defines the class data, if the class accepts an argument. For real time and best-effort, \fI0-7\fR is valid data. .IP "\fB-p \fIpid\fP" -Pass in process PIDs to view or change already running processes. If this argument +Pass in process PID(s) to view or change already running processes. If this argument is not given, \fBionice\fP will run the listed program with the given parameters. .IP "\fB-t\fP" -Ignore failure to set requested priority. If COMMAND is specified, run it +Ignore failure to set requested priority. If COMMAND or PID(s) is specified, run it even in case it was not possible to set desired scheduling priority, what can happen due to insufficient privilegies or old kernel version. |