The patch titled cgroups: add the trigger callback to struct cftype has been removed from the -mm tree. Its filename was cgroups-add-the-trigger-callback-to-struct-cftype.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: cgroups: add the trigger callback to struct cftype From: Pavel Emelyanov <xemul@xxxxxxxxxx> Trigger callback can be used to receive a kick-up from the user space. The string written is ignored. The cftype->private is used for multiplexing events. Signed-off-by: Pavel Emelyanov <xemul@xxxxxxxxxx> Acked-by: Paul Menage <menage@xxxxxxxxxx> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> Cc: Balbir Singh <balbir@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/cgroup.h | 8 ++++++++ kernel/cgroup.c | 4 ++++ 2 files changed, 12 insertions(+) diff -puN include/linux/cgroup.h~cgroups-add-the-trigger-callback-to-struct-cftype include/linux/cgroup.h --- a/include/linux/cgroup.h~cgroups-add-the-trigger-callback-to-struct-cftype +++ a/include/linux/cgroup.h @@ -243,6 +243,14 @@ struct cftype { */ int (*write_s64) (struct cgroup *cgrp, struct cftype *cft, s64 val); + /* + * trigger() callback can be used to get some kick from the + * userspace, when the actual string written is not important + * at all. The private field can be used to determine the + * kick type for multiplexing. + */ + int (*trigger)(struct cgroup *cgrp, unsigned int event); + int (*release) (struct inode *inode, struct file *file); }; diff -puN kernel/cgroup.c~cgroups-add-the-trigger-callback-to-struct-cftype kernel/cgroup.c --- a/kernel/cgroup.c~cgroups-add-the-trigger-callback-to-struct-cftype +++ a/kernel/cgroup.c @@ -1410,6 +1410,10 @@ static ssize_t cgroup_file_write(struct return cft->write(cgrp, cft, file, buf, nbytes, ppos); if (cft->write_u64 || cft->write_s64) return cgroup_write_X64(cgrp, cft, file, buf, nbytes, ppos); + if (cft->trigger) { + int ret = cft->trigger(cgrp, (unsigned int)cft->private); + return ret ? ret : nbytes; + } return -EINVAL; } _ Patches currently in -mm which might be from xemul@xxxxxxxxxx are origin.patch disable-the-memory-controller-by-default-v3.patch remove-unused-variable-from-send_signal.patch turn-legacy_queue-macro-into-static-inline-function.patch consolidate-checking-for-ignored-legacy-signals.patch consolidate-checking-for-ignored-legacy-signals-simplify.patch signals-consolidate-checks-for-whether-or-not-to-ignore-a-signal.patch signals-clean-dequeue_signal-from-excess-checks-and-assignments.patch signals-consolidate-send_sigqueue-and-send_group_sigqueue.patch signals-cleanup-security_task_kill-usage-implementation.patch signals-use-__group_complete_signal-for-the-specific-signals-too.patch signals-fold-complete_signal-into-send_signal-do_send_sigqueue.patch signals-unify-send_sigqueue-send_group_sigqueue-completely.patch ptrace-allow-to-ptrace-sbin-init.patch free_pidmap-turn-it-into-free_pidmapstruct-upid.patch use-find_task_by_vpid-in-taskstats.patch deprecate-find_task_by_pid.patch deprecate-find_task_by_pid-warning-fix.patch pids-de_thread-dont-clear-session-pgrp-pids-for-the-old-leader.patch pids-introduce-change_pid-helper.patch pids-sys_setpgid-use-change_pid-helper.patch pids-__set_special_pids-use-change_pid-helper.patch pidns-make-pid-level-and-pid_ns-level-unsigned.patch reiser4.patch put_pid-make-sure-we-dont-free-the-live-pid.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html