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| author | Peter Zijlstra <peterz@infradead.org> | 2019-10-30 20:01:26 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-02-11 13:10:53 +0100 |
| commit | 1751060e2527462714359573a39dca10451ffbf8 (patch) | |
| tree | b0b07336c5f17d355e20c3c94c1ccee6a65bcd85 /kernel/locking/rwsem.h | |
| parent | locking/lockdep: Reuse freed chain_hlocks entries (diff) | |
| download | linux-1751060e2527462714359573a39dca10451ffbf8.tar.xz linux-1751060e2527462714359573a39dca10451ffbf8.zip | |
locking/percpu-rwsem, lockdep: Make percpu-rwsem use its own lockdep_map
As preparation for replacing the embedded rwsem, give percpu-rwsem its
own lockdep_map.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Davidlohr Bueso <dbueso@suse.de>
Acked-by: Will Deacon <will@kernel.org>
Acked-by: Waiman Long <longman@redhat.com>
Tested-by: Juri Lelli <juri.lelli@redhat.com>
Link: https://lkml.kernel.org/r/20200131151539.927625541@infradead.org
Diffstat (limited to 'kernel/locking/rwsem.h')
| -rw-r--r-- | kernel/locking/rwsem.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/locking/rwsem.h b/kernel/locking/rwsem.h index 2534ce49f648..d0d33a59622d 100644 --- a/kernel/locking/rwsem.h +++ b/kernel/locking/rwsem.h @@ -6,5 +6,7 @@ extern void __down_read(struct rw_semaphore *sem); extern void __up_read(struct rw_semaphore *sem); +extern void __down_write(struct rw_semaphore *sem); +extern void __up_write(struct rw_semaphore *sem); #endif /* __INTERNAL_RWSEM_H */ |