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Commit 56cd6973 authored by Ingo Molnar's avatar Ingo Molnar
Browse files

sched/headers: Move the task_lock()/unlock() APIs to <linux/sched/task.h> 



The task_lock()/task_unlock() APIs are not realated to core scheduling,
they are task lifetime APIs, i.e. they belong into <linux/sched/task.h>.

Move them.

Acked-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent cdc75e9f

include/linux/sched.h

+0 −20
Original line number Diff line number Diff line
@@ -1526,26 +1526,6 @@ static inline unsigned long wait_task_inactive(struct task_struct *p, 
}

#endif



/*

 * Protects ->fs, ->files, ->mm, ->group_info, ->comm, keyring

 * subscriptions and synchronises with wait4().  Also used in procfs.  Also

 * pins the final release of task.io_context.  Also protects ->cpuset and

 * ->cgroup.subsys[]. And ->vfork_done.

 *

 * Nests both inside and outside of read_lock(&tasklist_lock).

 * It must not be nested with write_lock_irq(&tasklist_lock),

 * neither inside nor outside.

 */

static inline void task_lock(struct task_struct *p)

{

	spin_lock(&p->alloc_lock);

}



static inline void task_unlock(struct task_struct *p)

{

	spin_unlock(&p->alloc_lock);

}



/* set thread flags in other task's structures

 * - see asm/thread_info.h for TIF_xxxx flags available

 */

include/linux/sched/task.h

+20 −0
Original line number Diff line number Diff line
@@ -91,4 +91,24 @@ static inline struct vm_struct *task_stack_vm_area(const struct task_struct *t) 
}

#endif



/*

 * Protects ->fs, ->files, ->mm, ->group_info, ->comm, keyring

 * subscriptions and synchronises with wait4().  Also used in procfs.  Also

 * pins the final release of task.io_context.  Also protects ->cpuset and

 * ->cgroup.subsys[]. And ->vfork_done.

 *

 * Nests both inside and outside of read_lock(&tasklist_lock).

 * It must not be nested with write_lock_irq(&tasklist_lock),

 * neither inside nor outside.

 */

static inline void task_lock(struct task_struct *p)

{

	spin_lock(&p->alloc_lock);

}



static inline void task_unlock(struct task_struct *p)

{

	spin_unlock(&p->alloc_lock);

}



#endif /* _LINUX_SCHED_TASK_H */

kernel/cgroup/cgroup-v1.c

+1 −0
Original line number Diff line number Diff line
@@ -6,6 +6,7 @@ 
#include <linux/delay.h>

#include <linux/mm.h>

#include <linux/sched/signal.h>

#include <linux/sched/task.h>

#include <linux/slab.h>

#include <linux/vmalloc.h>

#include <linux/delayacct.h>

kernel/cgroup/namespace.c

+1 −1
Original line number Diff line number Diff line 
#include "cgroup-internal.h"



#include <linux/sched.h>

#include <linux/sched/task.h>

#include <linux/slab.h>

#include <linux/nsproxy.h>

#include <linux/proc_ns.h>