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

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.comSigned-off-by: default avatarSuren Baghdasaryan <surenb@google.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 20cce633
...@@ -60,6 +60,18 @@ static inline void __mmap_lock_trace_released(struct mm_struct *mm, bool write) ...@@ -60,6 +60,18 @@ static inline void __mmap_lock_trace_released(struct mm_struct *mm, bool write)
#endif /* CONFIG_TRACING */ #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) static inline void mmap_init_lock(struct mm_struct *mm)
{ {
init_rwsem(&mm->mmap_lock); init_rwsem(&mm->mmap_lock);
...@@ -150,18 +162,6 @@ static inline void mmap_read_unlock_non_owner(struct mm_struct *mm) ...@@ -150,18 +162,6 @@ static inline void mmap_read_unlock_non_owner(struct mm_struct *mm)
up_read_non_owner(&mm->mmap_lock); 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) static inline int mmap_lock_is_contended(struct mm_struct *mm)
{ {
return rwsem_is_contended(&mm->mmap_lock); return rwsem_is_contended(&mm->mmap_lock);
......
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