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UPSTREAM: mm: move mmap_lock assert function definitions

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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: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

(cherry picked from commit 438b6e12cd603a9416ca7c5462ab75b2a8c4d5b9)

Bug: 161210518
Change-Id: I4cd6a235983b38b8ce58af0e771251b25b9062f0
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
This commit is contained in:
Suren Baghdasaryan 2023-02-27 09:36:10 -08:00 • committed by Carlos Llamas
parent e28a0a0e5c
commit 882c3512ec
1 changed files with 12 additions and 12 deletions
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24
include/linux/mmap_lock.h
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@ -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);