[PATCH v5 7/9] mm: Add guard for mmap_read_lock
Steven Rostedt <[email protected]> Thu, 24 Apr 2025 15:25:03 -0400
| Newsgroups | org.kernel.vger.linux-toolchains,org.kernel.vger.linux-kernel,org.kernel.vger.linux-perf-users,org.kernel.vger.linux-trace-kernel |
|---|---|
| Message-ID | <[email protected]> |
From: Josh Poimboeuf <[email protected]> This is the new way of doing things. Converting all existing mmap_read_lock users is an exercise left for the reader ;-) Suggested-by: Peter Zijlstra <[email protected]> Signed-off-by: Josh Poimboeuf <[email protected]> --- include/linux/mmap_lock.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/mmap_lock.h b/include/linux/mmap_lock.h index 4706c6769902..cfa5ab84054a 100644 --- a/include/linux/mmap_lock.h +++ b/include/linux/mmap_lock.h @@ -222,4 +222,6 @@ static inline int mmap_lock_is_contended(struct mm_struct *mm) return rwsem_is_contended(&mm->mmap_lock); } +DEFINE_GUARD(mmap_read_lock, struct mm_struct *, mmap_read_lock(_T), mmap_read_unlock(_T)) + #endif /* _LINUX_MMAP_LOCK_H */ -- 2.47.2