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This API will unload the cgroups created in the cgroupfs and
unmount and delete the filesystem mount point. The action is
equivalent to what is done currently in service cgconfig stop.
The reason for this API is to make sure we don't end up with a
asymmetric library API subset. Today an application program can
programatically through cgroup_config_load_config() load a
configuration file, but has no means to cleanup (including all
temporarily created groups).
changes from v3
1. Address Jan's comments from http://article.gmane.org/gmane.comp.lib.libcg.devel/1105
changes from v2
1. Fix a leak as noted by Bharata
2. Address Balbir's review comments at
http://article.gmane.org/gmane.comp.lib.libcg.devel/1080
changes from v1
1. Change the name of the function to cgroup_unload_cgroups
2. Change the name of the executatble to cgclear
3. Split out the funtions
Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
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This patch adds cgset tool, which sets parameters of controllers
for given cgroup based on input name-variable pairs
- the syntax is:
cgset -r <name=value> <relative path to cgroup>
-------------------------------------------------
EXAMPLES:
$ cgcreate -g cpuset:test1
$ cgset -r cpuset.cpus=1 test
$ cat ./test/cpuset.cpus
1
$ cgcreate -g cpuset:test1 -g cpuset:test2
$ cgset -r cpuset.cpus=0 test1 test2
$ cat /mnt/cgroups/cpuset/test1/cpuset.cpus
0
$ cat /mnt/cgroups/cpuset/test2/cpuset.cpus
0
Signed-off-by: Ivana Varekova <varekova@redhat.com>
Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
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CHANGELOG of v2.1:
================
* Rebase the patch for commit '340feae163c4797a6cb1247b3812c1ccdc52fa41'.
There are some similar functions for getting process's data (uid, gid) from
/proc/<pid>/status file, so this patch integrates these functions into one
cgroup_get_uid_gid_from_procfs().
Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>
Reviewed-By: Jan Safranek <jsafrane@redhat.com>
Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
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This patch adds cgcreate tool, which creates cgroups based on input
parameters - the syntax is:
cgcreate -t <tuid>:<tgid> -a <agid>:<auid> -g <list of
controllers>:<relative path to cgroup>
where:
-a enables user to define admin gid and uid (implicit values are the
same values which are in the parent directory)
-t enables user to define task gid and uid (implicit values are the
same values which are in parent directory)
-g sets pairs list of controllers-relative path to cgroup
-------------------------------------------------
EXAMPLES:
* ../../libtool --mode=execute ./cgcreate -a :varekova -g cpuacct:first
* ll /mnt/cgroups/cpuacct | grep first
drwxrwxr-x 2 root varekova 0 2009-06-03 09:14 first
* ll /mnt/cgroups/cpuacct/first/*
-rwxrwxr-x 1 root varekova 0 2009-06-03 09:14 /mnt/cgroups/cpuacct/first/cpuacct.usage
-rwxrwxr-x 1 root varekova 0 2009-06-03 09:14 /mnt/cgroups/cpuacct/first/notify_on_release
-rwxrwxr-x 1 root varekova 0 2009-06-03 09:14 /mnt/cgroups/cpuacct/first/tasks
* ../../libtool --mode=execute ./cgcreate -a varekova:root -t varekova:varekova -g cpuacct:second
* ll /mnt/cgroups/cpuacct/ | grep second
drwxrwxr-x 2 varekova root 0 2009-06-03 09:13 second
* ll /mnt/cgroups/cpuacct/second
total 0
-rwxrwxr-x 1 varekova root 0 2009-06-03 09:13 cpuacct.usage
-rwxrwxr-x 1 varekova root 0 2009-06-03 09:13 notify_on_release
-rwxrwxr-x 1 varekova varekova 0 2009-06-03 09:13 tasks
* ../../libtool --mode=execute ./cgcreate -a varekova:varekova -g cpuacct:third -g cpuacct:fourth
* ll /mnt/cgroups/cpuacct | grep h
drwxrwxr-x 2 varekova varekova 0 2009-06-03 09:18 fourth
drwxrwxr-x 2 varekova varekova 0 2009-06-03 09:18 third
* ll /mnt/cgroups/cpuacct/*h*
/mnt/cgroups/cpuacct/fourth:
total 0
-rwxrwxr-x 1 varekova varekova 0 2009-06-03 09:18 cpuacct.usage
-rwxrwxr-x 1 varekova varekova 0 2009-06-03 09:18 notify_on_release
-rwxrwxr-x 1 varekova varekova 0 2009-06-03 09:18 tasks
/mnt/cgroups/cpuacct/third:
total 0
-rwxrwxr-x 1 varekova varekova 0 2009-06-03 09:18 cpuacct.usage
-rwxrwxr-x 1 varekova varekova 0 2009-06-03 09:18 notify_on_release
-rwxrwxr-x 1 varekova varekova 0 2009-06-03 09:18 tasks
Signed-off-by: Ivana Varekova <varekova@redhat.com>
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Add cgroup_free_group_spec procedure which free cgroups_group_spec
variable.
Signed-off-by: Ivana Varekova <varekova@redhat.com>
Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
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parse_cgroup_spec function does not initializesd allocated memory
this patch allocate it to zero so there is no problem with uninitialized
values.
Signed-off-by: Ivana Varekova <varekova@redhat.com>
Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
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By default, everything is compiled. I want to add options to ./configure,
which can selectively disable tools, daemon and pam module. The library
itself is mandatory component and cannot be disabled.
Usage:
./configure --help
./configure --disable-tools --disable-pam --disable-daemon
Signed-off-by: Jan Safranek <jsafrane@redhat.com>
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Hi,
This patch adds necessary fclose() calls into egid_of_pid().
Thanks
Ken'ichi Ohmichi
Reported-by: Masayuki Igawa <igawa@mxs.nes.nec.co.jp>
Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>
Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
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Fix of cgexec error handling - with this patch cgexec return the right
error message - not only cg internal error value
re-generated
Signed-off-by: Ivana Varekova <varekova@redhat.com>
Acked-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
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updates will be needed and will be done in subsequent cleanups.
Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com>
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I reviewed the libcgroup code in the viewpoint of memory-leak and
found some lacks of fclose(). This patch adds some fclose() calls
for error handling.
Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>
Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
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Make the shared object version a bit more usable, the notation with double
colons cannot be used on different places (see next patch).
Also run automake && autoconf to refresh the generated stuff.
Signed-off-by: Jan Safranek <jsafrane@redhat.com>
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cgconfigparser can be executed only by root, so it should be installed to
/sbin directory.
Also run automake to update Makefile.in with this change.
Signed-off-by: Jan Safranek <jsafrane@redhat.com>
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Finally run autoreconf -f -i to generate all the stuff that should be generated
Signed-off-by: Jan Safranek <jsafrane@redhat.com>
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Add automake makefiles and prepare everything to run, but don't actually
run the automake - it would generate lot of noise, where my manual changes
would get lots.
Signed-off-by: Jan Safranek <jsafrane@redhat.com>
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Signed-off-by: Jan Safranek <jsafrane@redhat.com>
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