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Add an API for re-mounting cgroups, to isolate the process location

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Add a virCgroupIsolateMount method which looks at where the
current process is place in the cgroups (eg /system/demo.lxc.libvirt)
and then remounts the cgroups such that this sub-directory
becomes the root directory from the current process' POV.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange
2013-04-05 12:48:47 +01:00
parent 83336118db
commit 1da631ecf3
6 changed files with 144 additions and 1 deletions
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1
include/libvirt/virterror.h
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@@ -116,6 +116,7 @@ typedef enum {
VIR_FROM_LOCKSPACE = 51, /* Error from lockspace */
VIR_FROM_INITCTL = 52, /* Error from initctl device communication */
VIR_FROM_IDENTITY = 53, /* Error from identity code */
VIR_FROM_CGROUP = 54, /* Error from cgroups */
# ifdef VIR_ENUM_SENTINELS
VIR_ERR_DOMAIN_LAST