Commit 74444eda authored by Ingo Molnar's avatar Ingo Molnar
Browse files

sched/headers: Move the memalloc_noio_*() APIs to <linux/sched/mm.h> 



In preparation to remove the <linux/gfp.h> include from <linux/sched.h>.

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 2a1f062a

include/linux/sched.h

+0 −22
Original line number Diff line number Diff line
@@ -1468,28 +1468,6 @@ extern void thread_group_cputime_adjusted(struct task_struct *p, u64 *ut, u64 *s 
#define tsk_used_math(p) ((p)->flags & PF_USED_MATH)

#define used_math() tsk_used_math(current)



/* __GFP_IO isn't allowed if PF_MEMALLOC_NOIO is set in current->flags

 * __GFP_FS is also cleared as it implies __GFP_IO.

 */

static inline gfp_t memalloc_noio_flags(gfp_t flags)

{

	if (unlikely(current->flags & PF_MEMALLOC_NOIO))

		flags &= ~(__GFP_IO | __GFP_FS);

	return flags;

}



static inline unsigned int memalloc_noio_save(void)

{

	unsigned int flags = current->flags & PF_MEMALLOC_NOIO;

	current->flags |= PF_MEMALLOC_NOIO;

	return flags;

}



static inline void memalloc_noio_restore(unsigned int flags)

{

	current->flags = (current->flags & ~PF_MEMALLOC_NOIO) | flags;

}



/* Per-process atomic flags. */

#define PFA_NO_NEW_PRIVS 0	/* May not gain new privileges. */

#define PFA_SPREAD_PAGE  1      /* Spread page cache over cpuset */

include/linux/sched/mm.h

+22 −0
Original line number Diff line number Diff line
@@ -147,4 +147,26 @@ static inline bool in_vfork(struct task_struct *tsk) 
	return ret;

}



/* __GFP_IO isn't allowed if PF_MEMALLOC_NOIO is set in current->flags

 * __GFP_FS is also cleared as it implies __GFP_IO.

 */

static inline gfp_t memalloc_noio_flags(gfp_t flags)

{

	if (unlikely(current->flags & PF_MEMALLOC_NOIO))

		flags &= ~(__GFP_IO | __GFP_FS);

	return flags;

}



static inline unsigned int memalloc_noio_save(void)

{

	unsigned int flags = current->flags & PF_MEMALLOC_NOIO;

	current->flags |= PF_MEMALLOC_NOIO;

	return flags;

}



static inline void memalloc_noio_restore(unsigned int flags)

{

	current->flags = (current->flags & ~PF_MEMALLOC_NOIO) | flags;

}



#endif /* _LINUX_SCHED_MM_H */

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