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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: Linus 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: Ingo Molnar <mingo@kernel.org>
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@ -1468,28 +1468,6 @@ extern void thread_group_cputime_adjusted(struct task_struct *p, u64 *ut, u64 *s
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#define tsk_used_math(p) ((p)->flags & PF_USED_MATH)
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#define used_math() tsk_used_math(current)
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/* __GFP_IO isn't allowed if PF_MEMALLOC_NOIO is set in current->flags
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* __GFP_FS is also cleared as it implies __GFP_IO.
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*/
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static inline gfp_t memalloc_noio_flags(gfp_t flags)
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{
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if (unlikely(current->flags & PF_MEMALLOC_NOIO))
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flags &= ~(__GFP_IO | __GFP_FS);
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return flags;
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}
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static inline unsigned int memalloc_noio_save(void)
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{
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unsigned int flags = current->flags & PF_MEMALLOC_NOIO;
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current->flags |= PF_MEMALLOC_NOIO;
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return flags;
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}
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static inline void memalloc_noio_restore(unsigned int flags)
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{
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current->flags = (current->flags & ~PF_MEMALLOC_NOIO) | flags;
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}
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/* Per-process atomic flags. */
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#define PFA_NO_NEW_PRIVS 0 /* May not gain new privileges. */
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#define PFA_SPREAD_PAGE 1 /* Spread page cache over cpuset */
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@ -147,4 +147,26 @@ static inline bool in_vfork(struct task_struct *tsk)
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return ret;
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}
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/* __GFP_IO isn't allowed if PF_MEMALLOC_NOIO is set in current->flags
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* __GFP_FS is also cleared as it implies __GFP_IO.
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*/
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static inline gfp_t memalloc_noio_flags(gfp_t flags)
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{
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if (unlikely(current->flags & PF_MEMALLOC_NOIO))
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flags &= ~(__GFP_IO | __GFP_FS);
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return flags;
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}
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static inline unsigned int memalloc_noio_save(void)
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{
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unsigned int flags = current->flags & PF_MEMALLOC_NOIO;
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current->flags |= PF_MEMALLOC_NOIO;
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return flags;
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}
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static inline void memalloc_noio_restore(unsigned int flags)
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{
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current->flags = (current->flags & ~PF_MEMALLOC_NOIO) | flags;
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}
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#endif /* _LINUX_SCHED_MM_H */
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