diff options
| author |   Hugh Dickins <hugh@veritas.com> | 2009-01-06 14:39:22 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-06 15:59:01 -0800 |
| commit | e5991371ee0d1c0ce19e133c6f9075b49c5b4ae8 (patch) | |
| tree | 3e5c9c3293c025f537ff4416660a96d33c694b5f /include | |
| parent | do_mpage_readpage(): remove useless clear_buffer_mapped() call (diff) | |
| download | linux-dev-e5991371ee0d1c0ce19e133c6f9075b49c5b4ae8.tar.xz linux-dev-e5991371ee0d1c0ce19e133c6f9075b49c5b4ae8.zip | |
mm: remove cgroup_mm_owner_callbacks
cgroup_mm_owner_callbacks() was brought in to support the memrlimit
controller, but sneaked into mainline ahead of it. That controller has
now been shelved, and the mm_owner_changed() args were inadequate for it
anyway (they needed an mm pointer instead of a task pointer).
Remove the dead code, and restore mm_update_next_owner() locking to how it
was before: taking mmap_sem there does nothing for memcontrol.c, now the
only user of mm->owner.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: Paul Menage <menage@google.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/cgroup.h | 14 |
1 files changed, 1 insertions, 13 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 1164963c3a85..08b78c09b09a 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -329,13 +329,7 @@ struct cgroup_subsys { struct cgroup *cgrp); void (*post_clone)(struct cgroup_subsys *ss, struct cgroup *cgrp); void (*bind)(struct cgroup_subsys *ss, struct cgroup *root); - /* - * This routine is called with the task_lock of mm->owner held - */ - void (*mm_owner_changed)(struct cgroup_subsys *ss, - struct cgroup *old, - struct cgroup *new, - struct task_struct *p); + int subsys_id; int active; int disabled; @@ -400,9 +394,6 @@ void cgroup_iter_end(struct cgroup *cgrp, struct cgroup_iter *it); int cgroup_scan_tasks(struct cgroup_scanner *scan); int cgroup_attach_task(struct cgroup *, struct task_struct *); -void cgroup_mm_owner_callbacks(struct task_struct *old, - struct task_struct *new); - #else /* !CONFIG_CGROUPS */ static inline int cgroup_init_early(void) { return 0; } @@ -420,9 +411,6 @@ static inline int cgroupstats_build(struct cgroupstats *stats, return -EINVAL; } -static inline void cgroup_mm_owner_callbacks(struct task_struct *old, - struct task_struct *new) {} - #endif /* !CONFIG_CGROUPS */ #endif /* _LINUX_CGROUP_H */ |