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Revert "sysfs, driver-core: remove unused {sysfs|device}_schedule_callback_owner()"

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This reverts commit d1ba277e79.

Tejun writes:
        I'm sorry but can you please revert the whole series?
        get_active() waiting while a node is deactivated has potential
        to lead to deadlock and that deactivate/reactivate interface is
        something fundamentally flawed and that cgroup will have to work
        with the remove_self() like everybody else.  IOW, I think the
        first posting was correct.

Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2014-01-13 13:51:36 -08:00
parent ce9b499c9f
commit a30f82b7eb
4 changed files with 144 additions and 1 deletions
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9
include/linux/sysfs.h
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@ -178,6 +178,9 @@ struct sysfs_ops {
#ifdef CONFIG_SYSFS
int sysfs_schedule_callback(struct kobject *kobj, void (*func)(void *),
void *data, struct module *owner);
int __must_check sysfs_create_dir_ns(struct kobject *kobj, const void *ns);
void sysfs_remove_dir(struct kobject *kobj);
int __must_check sysfs_rename_dir_ns(struct kobject *kobj, const char *new_name,
@ -246,6 +249,12 @@ int __must_check sysfs_init(void);
#else /* CONFIG_SYSFS */
static inline int sysfs_schedule_callback(struct kobject *kobj,
void (*func)(void *), void *data, struct module *owner)
{
return -ENOSYS;
}
static inline int sysfs_create_dir_ns(struct kobject *kobj, const void *ns)
{
return 0;