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bp@alien8.de, brauner@kernel.org, bsegall@google.com, corbet@lwn.net, dave.hansen@linux.intel.com, david@redhat.com, dietmar.eggemann@arm.com, ebiederm@xmission.com, hpa@zytor.com, jakub.wartak@mailbox.org, jannh@google.com, juri.lelli@redhat.com, khalid@kernel.org, liam.howlett@oracle.com, linyongting@bytedance.com, lorenzo.stoakes@oracle.com, luto@kernel.org, markhemm@googlemail.com, maz@kernel.org, mhiramat@kernel.org, mgorman@suse.de, mhocko@suse.com, mingo@redhat.com, muchun.song@linux.dev, neilb@suse.de, osalvador@suse.de, pcc@google.com, peterz@infradead.org, pfalcato@suse.de, rostedt@goodmis.org, rppt@kernel.org, shakeel.butt@linux.dev, surenb@google.com, tglx@linutronix.de, vasily.averin@linux.dev, vbabka@suse.cz, vincent.guittot@linaro.org, viro@zeniv.linux.org.uk, vschneid@redhat.com, willy@infradead.org, x86@kernel.org, xhao@linux.alibaba.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org Subject: [PATCH v3 10/22] mm: add 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Signed-off-by: Anthony Yznaga --- include/linux/mmap_lock.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/linux/mmap_lock.h b/include/linux/mmap_lock.h index 2c9fffa58714..3cf7219306a1 100644 --- a/include/linux/mmap_lock.h +++ b/include/linux/mmap_lock.h @@ -369,6 +369,13 @@ static inline void mmap_read_lock(struct mm_struct *mm) __mmap_lock_trace_acquire_returned(mm, false, true); } +static inline void mmap_read_lock_nested(struct mm_struct *mm, int subclass) +{ + __mmap_lock_trace_start_locking(mm, false); + down_read_nested(&mm->mmap_lock, subclass); + __mmap_lock_trace_acquire_returned(mm, false, true); +} + static inline int mmap_read_lock_killable(struct mm_struct *mm) { int ret; -- 2.47.1