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Changelog:
- since there are no global macros, base.h is gone
- since there is no base.h, all headers need to include <features.h> to get
__BEGIN_DECLS
- new init.h with cgroup_init() and cgroup_get_subsys_mount_point()
- new error.h with error handling enum and related stuff
- use #ifndef _LIBCGROUP_*_H instead _LIBCG_*_H in header guards
- fix few checkpatch complaints (long lines, whitespaces, ...)
The patch includes Makefile and .spec changes. I tested it compiles,
make dist produces tarball with all headers, so does also the rpm.
'make' should automatically catch all changes in new headers and
recompile dependent (=all) sources when any header changes.
libcgroup.h
- does not declare anything, it just includes all the other files. In
future, it might contain base of doxygen documentation (some
introduction etc.)
libcgroup/error.h
- the big enum with errors + error related functions
libcgroup/init.h
- libcgroup_init() and cgroup_get_subsys_mount_point()
libcgroup/config.h
- configuration reading/unloading
libcgroup/groups.h
- group manipulation stuff (create/modify/delete/free, incl. controllers and
get/set values) + definition of struct cgroup (=must be included by
libcgroup/tasks.h, which needs it)
libcgroup/iterators.h
- various walks, *_begin/next/end
libcgroup/tasks.h
- task classification, incl. rules cache manipulation
In addition, I probably removed some #includes, which are not needed now when
looking for the minimal #include set to build the project. I also hope I did not
miss any function declaration or macro...
Signed-off-by: Jan Safranek <jsafrane@redhat.com>
Signed-off-by: Dhaval Giani <dhaval.giani@gmail.com>
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Signed-off-by: Ivana Hutarova Varekova <varekova@redhat.com>
Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
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Don't limit the number of groups cgcreate can create, allocate them
dynamically. The size of allocated space for the group is only aproximate, but
still should be better than hard CG_HIER_MAX.
Signed-off-by: Jan Safranek <jsafrane@redhat.com>
Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
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Some libcgroup tools are limited to CG_HIER_MAX arguments. This hard limit
is suitable only to some of the tools, namely cgdelete and cgcreate should not
be limited to any particular numbers of groups to create/delete.
This patches removes the hard limit from tools-common.c and puts it to the
individual tools.
Signed-off-by: Jan Safranek <jsafrane@redhat.com>
Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
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libcgroup.h includes some header files, which are not then used. These should
be removed, resp. moved to the source files where they are actually needed.
Signed-off-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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