diff options
Diffstat (limited to 'include/linux/padata.h')
| -rw-r--r-- | include/linux/padata.h | 42 |
1 files changed, 15 insertions, 27 deletions
diff --git a/include/linux/padata.h b/include/linux/padata.h index 7302efff5e65..765f2778e264 100644 --- a/include/linux/padata.h +++ b/include/linux/padata.h @@ -12,6 +12,7 @@ #ifndef PADATA_H #define PADATA_H +#include <linux/refcount.h> #include <linux/compiler_types.h> #include <linux/workqueue.h> #include <linux/spinlock.h> @@ -67,17 +68,6 @@ struct padata_serial_queue { }; /** - * struct padata_parallel_queue - The percpu padata parallel queue - * - * @reorder: List to wait for reordering after parallel processing. - * @num_obj: Number of objects that are processed by this cpu. - */ -struct padata_parallel_queue { - struct padata_list reorder; - atomic_t num_obj; -}; - -/** * struct padata_cpumask - The cpumasks for the parallel/serial workers * * @pcpu: cpumask for the parallel workers. @@ -93,27 +83,23 @@ struct padata_cpumask { * that depends on the cpumask in use. * * @ps: padata_shell object. - * @pqueue: percpu padata queues used for parallelization. + * @reorder_list: percpu reorder lists * @squeue: percpu padata queues used for serialuzation. * @refcnt: Number of objects holding a reference on this parallel_data. * @seq_nr: Sequence number of the parallelized data object. * @processed: Number of already processed objects. * @cpu: Next CPU to be processed. * @cpumask: The cpumasks in use for parallel and serial workers. - * @reorder_work: work struct for reordering. - * @lock: Reorder lock. */ struct parallel_data { struct padata_shell *ps; - struct padata_parallel_queue __percpu *pqueue; + struct padata_list __percpu *reorder_list; struct padata_serial_queue __percpu *squeue; - atomic_t refcnt; + refcount_t refcnt; unsigned int seq_nr; unsigned int processed; int cpu; struct padata_cpumask cpumask; - struct work_struct reorder_work; - spinlock_t ____cacheline_aligned lock; }; /** @@ -147,6 +133,7 @@ struct padata_shell { * appropriate for one worker thread to do at once. * @max_threads: Max threads to use for the job, actual number may be less * depending on task size and minimum chunk size. + * @numa_aware: Distribute jobs to different nodes with CPU in a round robin fashion. */ struct padata_mt_job { void (*thread_fn)(unsigned long start, unsigned long end, void *arg); @@ -156,6 +143,7 @@ struct padata_mt_job { unsigned long align; unsigned long min_chunk; int max_threads; + bool numa_aware; }; /** @@ -167,7 +155,6 @@ struct padata_mt_job { * @serial_wq: The workqueue used for serial work. * @pslist: List of padata_shell objects attached to this instance. * @cpumask: User supplied cpumasks for parallel and serial works. - * @rcpumask: Actual cpumasks based on user cpumask and cpu_online_mask. * @kobj: padata instance kernel object. * @lock: padata instance lock. * @flags: padata flags. @@ -179,7 +166,6 @@ struct padata_instance { struct workqueue_struct *serial_wq; struct list_head pslist; struct padata_cpumask cpumask; - struct padata_cpumask rcpumask; struct kobject kobj; struct mutex lock; u8 flags; @@ -190,11 +176,7 @@ struct padata_instance { #ifdef CONFIG_PADATA extern void __init padata_init(void); -#else -static inline void __init padata_init(void) {} -#endif - -extern struct padata_instance *padata_alloc_possible(const char *name); +extern struct padata_instance *padata_alloc(const char *name); extern void padata_free(struct padata_instance *pinst); extern struct padata_shell *padata_alloc_shell(struct padata_instance *pinst); extern void padata_free_shell(struct padata_shell *ps); @@ -204,6 +186,12 @@ extern void padata_do_serial(struct padata_priv *padata); extern void __init padata_do_multithreaded(struct padata_mt_job *job); extern int padata_set_cpumask(struct padata_instance *pinst, int cpumask_type, cpumask_var_t cpumask); -extern int padata_start(struct padata_instance *pinst); -extern void padata_stop(struct padata_instance *pinst); +#else +static inline void __init padata_init(void) {} +static inline void __init padata_do_multithreaded(struct padata_mt_job *job) +{ + job->thread_fn(job->start, job->start + job->size, job->fn_arg); +} +#endif + #endif |