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| author | Paul E. McKenney <paulmck@kernel.org> | 2022-01-27 01:01:26 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2022-04-12 00:31:02 +0200 |
| commit | aeb9b39b8f4aac1233302c53a1fd99a73fd2c262 (patch) | |
| tree | f299000c5b04d6ab907fe633d18d0f4a2b7e43b9 /kernel/rcu | |
| parent | srcu: Make rcutorture dump the SRCU size state (diff) | |
| download | linux-aeb9b39b8f4aac1233302c53a1fd99a73fd2c262.tar.xz linux-aeb9b39b8f4aac1233302c53a1fd99a73fd2c262.zip | |
srcu: Compute snp_seq earlier in srcu_funnel_gp_start()
Currently, srcu_funnel_gp_start() tests snp->srcu_have_cbs[idx] and then
separately assigns it to the snp_seq local variable. This commit does
the assignment earlier to simplify the code a bit. While in the area,
this commit also takes advantage of the 100-character line limit to put
the call to srcu_schedule_cbs_sdp() on a single line.
Co-developed-by: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Signed-off-by: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/srcutree.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/kernel/rcu/srcutree.c b/kernel/rcu/srcutree.c index 0874e3be6a5a..fec608f69962 100644 --- a/kernel/rcu/srcutree.c +++ b/kernel/rcu/srcutree.c @@ -697,15 +697,13 @@ static void srcu_funnel_gp_start(struct srcu_struct *ssp, struct srcu_data *sdp, if (rcu_seq_done(&ssp->srcu_gp_seq, s) && snp != snp_leaf) return; /* GP already done and CBs recorded. */ spin_lock_irqsave_rcu_node(snp, flags); - if (ULONG_CMP_GE(snp->srcu_have_cbs[idx], s)) { - snp_seq = snp->srcu_have_cbs[idx]; + snp_seq = snp->srcu_have_cbs[idx]; + if (ULONG_CMP_GE(snp_seq, s)) { if (snp == snp_leaf && snp_seq == s) snp->srcu_data_have_cbs[idx] |= sdp->grpmask; spin_unlock_irqrestore_rcu_node(snp, flags); if (snp == snp_leaf && snp_seq != s) { - srcu_schedule_cbs_sdp(sdp, do_norm - ? SRCU_INTERVAL - : 0); + srcu_schedule_cbs_sdp(sdp, do_norm ? SRCU_INTERVAL : 0); return; } if (!do_norm) |