kevin/linux
1
Fork 0
Code

rcu: Rename rcu_dynticks_zero_in_eqs() into rcu_watching_zero_in_eqs()

Browse Source 
The context_tracking.state RCU_DYNTICKS subvariable has been renamed to
RCU_WATCHING, reflect that change in the related helpers.

Signed-off-by: Valentin Schneider <vschneid@redhat.com>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Neeraj Upadhyay <neeraj.upadhyay@kernel.org>
This commit is contained in:
Valentin Schneider 2024-04-29 13:11:34 +02:00 committed by Neeraj Upadhyay
parent 3116a32eb4
commit fc1096ab1f
3 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
kernel/rcu/rcu.h
View File

@ -606,7 +606,7 @@ void srcutorture_get_gp_data(struct srcu_struct *sp, int *flags,
#endif
#ifdef CONFIG_TINY_RCU
static inline bool rcu_dynticks_zero_in_eqs(int cpu, int *vp) { return false; }
static inline bool rcu_watching_zero_in_eqs(int cpu, int *vp) { return false; }
static inline unsigned long rcu_get_gp_seq(void) { return 0; }
static inline unsigned long rcu_exp_batches_completed(void) { return 0; }
static inline unsigned long
@ -619,7 +619,7 @@ static inline void rcu_fwd_progress_check(unsigned long j) { }
static inline void rcu_gp_slow_register(atomic_t *rgssp) { }
static inline void rcu_gp_slow_unregister(atomic_t *rgssp) { }
#else /* #ifdef CONFIG_TINY_RCU */
bool rcu_dynticks_zero_in_eqs(int cpu, int *vp);
bool rcu_watching_zero_in_eqs(int cpu, int *vp);
unsigned long rcu_get_gp_seq(void);
unsigned long rcu_exp_batches_completed(void);
unsigned long srcu_batches_completed(struct srcu_struct *sp);

2
kernel/rcu/tasks.h
View File

@ -1613,7 +1613,7 @@ static int trc_inspect_reader(struct task_struct *t, void *bhp_in)
// However, we cannot safely change its state.
n_heavy_reader_attempts++;
// Check for "running" idle tasks on offline CPUs.
if (!rcu_dynticks_zero_in_eqs(cpu, &t->trc_reader_nesting))
if (!rcu_watching_zero_in_eqs(cpu, &t->trc_reader_nesting))
return -EINVAL; // No quiescent state, do it the hard way.
n_heavy_reader_updates++;
nesting = 0;

2
kernel/rcu/tree.c
View File

@ -341,7 +341,7 @@ static bool rcu_watching_snap_stopped_since(struct rcu_data *rdp, int snap)
* Return true if the referenced integer is zero while the specified
* CPU remains within a single extended quiescent state.
*/
bool rcu_dynticks_zero_in_eqs(int cpu, int *vp)
bool rcu_watching_zero_in_eqs(int cpu, int *vp)
{
int snap;