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Task Control Groups: make cpusets a client of cgroups

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Remove the filesystem support logic from the cpusets system and makes cpusets
a cgroup subsystem

The "cpuset" filesystem becomes a dummy filesystem; attempts to mount it get
passed through to the cgroup filesystem with the appropriate options to
emulate the old cpuset filesystem behaviour.

Signed-off-by: Paul Menage <menage@google.com>
Cc: Serge E. Hallyn <serue@us.ibm.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Paul Jackson <pj@sgi.com>
Cc: Kirill Korotaev <dev@openvz.org>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: Srivatsa Vaddagiri <vatsa@in.ibm.com>
Cc: Cedric Le Goater <clg@fr.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Paul Menage
2007-10-18 23:39:39 -07:00
committed by Linus Torvalds
parent 81a6a5cdd2
commit 8793d854ed
11 changed files with 276 additions and 1054 deletions
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1188
kernel/cpuset.c
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File diff suppressed because it is too large Load Diff

2
kernel/exit.c
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@@ -31,7 +31,6 @@
#include <linux/taskstats_kern.h>
#include <linux/delayacct.h>
#include <linux/freezer.h>
#include <linux/cpuset.h>
#include <linux/cgroup.h>
#include <linux/syscalls.h>
#include <linux/signal.h>
@@ -973,7 +972,6 @@ fastcall NORET_TYPE void do_exit(long code)
__exit_fs(tsk);
check_stack_usage();
exit_thread();
cpuset_exit(tsk);
cgroup_exit(tsk, 1);
exit_keys(tsk);

3
kernel/fork.c
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@@ -29,7 +29,6 @@
#include <linux/nsproxy.h>
#include <linux/capability.h>
#include <linux/cpu.h>
#include <linux/cpuset.h>
#include <linux/cgroup.h>
#include <linux/security.h>
#include <linux/swap.h>
@@ -1089,7 +1088,6 @@ static struct task_struct *copy_process(unsigned long clone_flags,
#endif
p->io_context = NULL;
p->audit_context = NULL;
cpuset_fork(p);
cgroup_fork(p);
#ifdef CONFIG_NUMA
p->mempolicy = mpol_copy(p->mempolicy);
@@ -1330,7 +1328,6 @@ bad_fork_cleanup_policy:
mpol_free(p->mempolicy);
bad_fork_cleanup_cgroup:
#endif
cpuset_exit(p);
cgroup_exit(p, cgroup_callbacks_done);
bad_fork_cleanup_delays_binfmt:
delayacct_tsk_free(p);