diff options
| author | Paul E. McKenney <paulmck@kernel.org> | 2023-03-18 10:51:50 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2023-04-04 08:36:57 -0700 |
| commit | 5ff8319f07db11c3b9347ce1dc0a6d951ae96d29 (patch) | |
| tree | 8a03228c2d257483617d29df9d7cd869e15de88b /kernel/rcu | |
| parent | eabe7625f053050e4cecbbe98bd944f7e8eb14f5 (diff) | |
srcu: Fix long lines in cleanup_srcu_struct()
This commit creates an srcu_usage pointer named "sup" as a shorter
synonym for the "ssp->srcu_sup" that was bloating several lines of code.
Cc: Christoph Hellwig <hch@lst.de>
Tested-by: Sachin Sant <sachinp@linux.ibm.com>
Tested-by: "Zhang, Qiang1" <qiang1.zhang@intel.com>
Tested-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/srcutree.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/kernel/rcu/srcutree.c b/kernel/rcu/srcutree.c index 9699bcab7215..11a08201ca0a 100644 --- a/kernel/rcu/srcutree.c +++ b/kernel/rcu/srcutree.c @@ -644,12 +644,13 @@ static unsigned long srcu_get_delay(struct srcu_struct *ssp) void cleanup_srcu_struct(struct srcu_struct *ssp) { int cpu; + struct srcu_usage *sup = ssp->srcu_sup; if (WARN_ON(!srcu_get_delay(ssp))) return; /* Just leak it! */ if (WARN_ON(srcu_readers_active(ssp))) return; /* Just leak it! */ - flush_delayed_work(&ssp->srcu_sup->work); + flush_delayed_work(&sup->work); for_each_possible_cpu(cpu) { struct srcu_data *sdp = per_cpu_ptr(ssp->sda, cpu); @@ -658,21 +659,21 @@ void cleanup_srcu_struct(struct srcu_struct *ssp) if (WARN_ON(rcu_segcblist_n_cbs(&sdp->srcu_cblist))) return; /* Forgot srcu_barrier(), so just leak it! */ } - if (WARN_ON(rcu_seq_state(READ_ONCE(ssp->srcu_sup->srcu_gp_seq)) != SRCU_STATE_IDLE) || - WARN_ON(rcu_seq_current(&ssp->srcu_sup->srcu_gp_seq) != ssp->srcu_sup->srcu_gp_seq_needed) || + if (WARN_ON(rcu_seq_state(READ_ONCE(sup->srcu_gp_seq)) != SRCU_STATE_IDLE) || + WARN_ON(rcu_seq_current(&sup->srcu_gp_seq) != sup->srcu_gp_seq_needed) || WARN_ON(srcu_readers_active(ssp))) { pr_info("%s: Active srcu_struct %p read state: %d gp state: %lu/%lu\n", - __func__, ssp, rcu_seq_state(READ_ONCE(ssp->srcu_sup->srcu_gp_seq)), - rcu_seq_current(&ssp->srcu_sup->srcu_gp_seq), ssp->srcu_sup->srcu_gp_seq_needed); + __func__, ssp, rcu_seq_state(READ_ONCE(sup->srcu_gp_seq)), + rcu_seq_current(&sup->srcu_gp_seq), sup->srcu_gp_seq_needed); return; /* Caller forgot to stop doing call_srcu()? */ } - kfree(ssp->srcu_sup->node); - ssp->srcu_sup->node = NULL; - ssp->srcu_sup->srcu_size_state = SRCU_SIZE_SMALL; - if (!ssp->srcu_sup->sda_is_static) { + kfree(sup->node); + sup->node = NULL; + sup->srcu_size_state = SRCU_SIZE_SMALL; + if (!sup->sda_is_static) { free_percpu(ssp->sda); ssp->sda = NULL; - kfree(ssp->srcu_sup); + kfree(sup); ssp->srcu_sup = NULL; } } |