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author | Michael S. Tsirkin <mst@redhat.com> | 2010-09-09 16:37:37 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-09-09 18:57:23 -0700 |
commit | 31583bb0cf6cc40f2a468a4d2f3b9cbefd24f891 (patch) | |
tree | 1c9ff4ff83ef80fe0b9b5d6fa7ec9af1ebbc2209 /Documentation/vm/hugetlbpage.txt | |
parent | ed430fec756ad65f7cfba24f8ad17c3d5a403290 (diff) | |
download | linux-31583bb0cf6cc40f2a468a4d2f3b9cbefd24f891.tar.gz linux-31583bb0cf6cc40f2a468a4d2f3b9cbefd24f891.tar.bz2 linux-31583bb0cf6cc40f2a468a4d2f3b9cbefd24f891.zip |
cgroups: fix API thinko
Add cgroup_attach_task_all()
The existing cgroup_attach_task_current_cg() API is called by a thread to
attach another thread to all of its cgroups; this is unsuitable for cases
where a privileged task wants to attach itself to the cgroups of a less
privileged one, since the call must be made from the context of the target
task.
This patch adds a more generic cgroup_attach_task_all() API that allows
both the source task and to-be-moved task to be specified.
cgroup_attach_task_current_cg() becomes a specialization of the more
generic new function.
[menage@google.com: rewrote changelog]
[akpm@linux-foundation.org: address reviewer comments]
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Acked-by: Paul Menage <menage@google.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Ben Blum <bblum@google.com>
Cc: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/vm/hugetlbpage.txt')
0 files changed, 0 insertions, 0 deletions