Commit 438b6e12 authored by Suren Baghdasaryan's avatar Suren Baghdasaryan Committed by Andrew Morton
Browse files

mm: move mmap_lock assert function definitions 

Move mmap_lock assert function definitions up so that they can be used by
other mmap_lock routines.

Link: https://lkml.kernel.org/r/20230227173632.3292573-12-surenb@google.com


Signed-off-by: default avatarSuren Baghdasaryan <surenb@google.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 20cce633

include/linux/mmap_lock.h

+12 −12
Original line number Diff line number Diff line
@@ -60,6 +60,18 @@ static inline void __mmap_lock_trace_released(struct mm_struct *mm, bool write) 


#endif /* CONFIG_TRACING */



static inline void mmap_assert_locked(struct mm_struct *mm)

{

	lockdep_assert_held(&mm->mmap_lock);

	VM_BUG_ON_MM(!rwsem_is_locked(&mm->mmap_lock), mm);

}



static inline void mmap_assert_write_locked(struct mm_struct *mm)

{

	lockdep_assert_held_write(&mm->mmap_lock);

	VM_BUG_ON_MM(!rwsem_is_locked(&mm->mmap_lock), mm);

}



static inline void mmap_init_lock(struct mm_struct *mm)

{

	init_rwsem(&mm->mmap_lock);
@@ -150,18 +162,6 @@ static inline void mmap_read_unlock_non_owner(struct mm_struct *mm) 
	up_read_non_owner(&mm->mmap_lock);

}



static inline void mmap_assert_locked(struct mm_struct *mm)

{

	lockdep_assert_held(&mm->mmap_lock);

	VM_BUG_ON_MM(!rwsem_is_locked(&mm->mmap_lock), mm);

}



static inline void mmap_assert_write_locked(struct mm_struct *mm)

{

	lockdep_assert_held_write(&mm->mmap_lock);

	VM_BUG_ON_MM(!rwsem_is_locked(&mm->mmap_lock), mm);

}



static inline int mmap_lock_is_contended(struct mm_struct *mm)

{

	return rwsem_is_contended(&mm->mmap_lock);