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[02/29] mmap locking API: mmap_lock_is_contended returns a bool

Message ID 20210430195232.30491-3-michel@lespinasse.org (mailing list archive)
State New
Headers show
Series [01/29] mm: export dump_mm | expand

Commit Message

Michel Lespinasse April 30, 2021, 7:52 p.m. UTC
Change mmap_lock_is_contended to return a bool value, rather than an
int which the callers are then supposed to interpret as a bool. This
is to ensure consistency with other mmap lock API functions (such as
the trylock functions).

Signed-off-by: Michel Lespinasse <michel@lespinasse.org>
 include/linux/mmap_lock.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/include/linux/mmap_lock.h b/include/linux/mmap_lock.h
index 0540f0156f58..4e27f755766b 100644
--- a/include/linux/mmap_lock.h
+++ b/include/linux/mmap_lock.h
@@ -171,9 +171,9 @@  static inline void mmap_assert_write_locked(struct mm_struct *mm)
 	VM_BUG_ON_MM(!rwsem_is_locked(&mm->mmap_lock), mm);
-static inline int mmap_lock_is_contended(struct mm_struct *mm)
+static inline bool mmap_lock_is_contended(struct mm_struct *mm)
-	return rwsem_is_contended(&mm->mmap_lock);
+	return rwsem_is_contended(&mm->mmap_lock) != 0;
 #endif /* _LINUX_MMAP_LOCK_H */