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| author | Paul E. McKenney <paulmck@kernel.org> | 2024-10-15 09:11:09 -0700 |
|---|---|---|
| committer | Frederic Weisbecker <frederic@kernel.org> | 2024-11-12 15:44:37 +0100 |
| commit | 43349fc4d8098d8679e7b142841a9661c623ed3a (patch) | |
| tree | 4c55b8900d1de09584bf890274d4ff7c416ebc26 /kernel/rcu | |
| parent | 95a5de21541d9eb0cf4983f9ffe8b7140db66ef3 (diff) | |
| download | lwn-43349fc4d8098d8679e7b142841a9661c623ed3a.tar.gz lwn-43349fc4d8098d8679e7b142841a9661c623ed3a.zip | |
rcutorture: Add srcu_read_lock_lite() support to rcutorture.reader_flavor
This commit causes bit 0x4 of rcutorture.reader_flavor to select the new
srcu_read_lock_lite() and srcu_read_unlock_lite() functions.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: <bpf@vger.kernel.org>
Reviewed-by: Neeraj Upadhyay <Neeraj.Upadhyay@amd.com>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/rcutorture.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 405decec3367..a313cdcb0960 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -658,6 +658,11 @@ static int srcu_torture_read_lock(void) WARN_ON_ONCE(idx & ~0x1); ret += idx << 1; } + if (reader_flavor & 0x4) { + idx = srcu_read_lock_lite(srcu_ctlp); + WARN_ON_ONCE(idx & ~0x1); + ret += idx << 2; + } return ret; } @@ -683,6 +688,8 @@ srcu_read_delay(struct torture_random_state *rrsp, struct rt_read_seg *rtrsp) static void srcu_torture_read_unlock(int idx) { WARN_ON_ONCE((reader_flavor && (idx & ~reader_flavor)) || (!reader_flavor && (idx & ~0x1))); + if (reader_flavor & 0x4) + srcu_read_unlock_lite(srcu_ctlp, (idx & 0x4) >> 2); if (reader_flavor & 0x2) srcu_read_unlock_nmisafe(srcu_ctlp, (idx & 0x2) >> 1); if ((reader_flavor & 0x1) || !(reader_flavor & 0x7)) |