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include/linux/sched/mm.h: uninline mmdrop_async(), etc

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mmdrop_async() is only used in fork.c.  Move that and its support
functions into fork.c, uninline it all.

Quite a lot of code gets moved around to avoid forward declarations.

Cc: Ingo Molnar <mingo@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andrew Morton
2018-01-31 16:15:51 -08:00
committed by Linus Torvalds
parent 0d2d5d40de
commit d70f2a14b7
2 changed files with 238 additions and 234 deletions
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24
include/linux/sched/mm.h
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@@ -11,7 +11,7 @@
/*
* Routines for handling mm_structs
*/
extern struct mm_struct * mm_alloc(void);
extern struct mm_struct *mm_alloc(void);
/**
* mmgrab() - Pin a &struct mm_struct.
@@ -35,27 +35,7 @@ static inline void mmgrab(struct mm_struct *mm)
atomic_inc(&mm->mm_count);
}
/* mmdrop drops the mm and the page tables */
extern void __mmdrop(struct mm_struct *);
static inline void mmdrop(struct mm_struct *mm)
{
if (unlikely(atomic_dec_and_test(&mm->mm_count)))
__mmdrop(mm);
}
static inline void mmdrop_async_fn(struct work_struct *work)
{
struct mm_struct *mm = container_of(work, struct mm_struct, async_put_work);
__mmdrop(mm);
}
static inline void mmdrop_async(struct mm_struct *mm)
{
if (unlikely(atomic_dec_and_test(&mm->mm_count))) {
INIT_WORK(&mm->async_put_work, mmdrop_async_fn);
schedule_work(&mm->async_put_work);
}
}
extern void mmdrop(struct mm_struct *mm);
/**
* mmget() - Pin the address space associated with a &struct mm_struct.