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authorTejun Heo <tj@kernel.org>2013-01-24 11:01:33 -0800
committerTejun Heo <tj@kernel.org>2013-01-24 11:01:33 -0800
commite34cdddb03bdfe98f20c58934fd4c45019f13ae5 (patch)
tree3c98a24a407e1f2794e06a48961a2b9da8e208ae /kernel/workqueue.c
parente2905b29122173b72b612c962b138e3fa07476b8 (diff)
downloadlinux-e34cdddb03bdfe98f20c58934fd4c45019f13ae5.tar.bz2
workqueue: use std_ prefix for the standard per-cpu pools
There are currently two worker pools per cpu (including the unbound cpu) and they are the only pools in use. New class of pools are scheduled to be added and some pool related APIs will be added inbetween. Call the existing pools the standard pools and prefix them with std_. Do this early so that new APIs can use std_ prefix from the beginning. This patch doesn't introduce any functional difference. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Diffstat (limited to 'kernel/workqueue.c')
-rw-r--r--kernel/workqueue.c22
1 files changed, 11 insertions, 11 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index fe0745f54fcd..634251572fdd 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -80,7 +80,7 @@ enum {
WORKER_NOT_RUNNING = WORKER_PREP | WORKER_UNBOUND |
WORKER_CPU_INTENSIVE,
- NR_WORKER_POOLS = 2, /* # worker pools per gcwq */
+ NR_STD_WORKER_POOLS = 2, /* # standard pools per cpu */
BUSY_WORKER_HASH_ORDER = 6, /* 64 pointers */
@@ -156,7 +156,7 @@ struct global_cwq {
DECLARE_HASHTABLE(busy_hash, BUSY_WORKER_HASH_ORDER);
/* L: hash of busy workers */
- struct worker_pool pools[NR_WORKER_POOLS];
+ struct worker_pool pools[NR_STD_WORKER_POOLS];
/* normal and highpri pools */
} ____cacheline_aligned_in_smp;
@@ -255,7 +255,7 @@ EXPORT_SYMBOL_GPL(system_freezable_wq);
#define for_each_worker_pool(pool, gcwq) \
for ((pool) = &(gcwq)->pools[0]; \
- (pool) < &(gcwq)->pools[NR_WORKER_POOLS]; (pool)++)
+ (pool) < &(gcwq)->pools[NR_STD_WORKER_POOLS]; (pool)++)
#define for_each_busy_worker(worker, i, pos, gcwq) \
hash_for_each(gcwq->busy_hash, i, pos, worker, hentry)
@@ -436,7 +436,7 @@ static bool workqueue_freezing; /* W: have wqs started freezing? */
* try_to_wake_up(). Put it in a separate cacheline.
*/
static DEFINE_PER_CPU(struct global_cwq, global_cwq);
-static DEFINE_PER_CPU_SHARED_ALIGNED(atomic_t, pool_nr_running[NR_WORKER_POOLS]);
+static DEFINE_PER_CPU_SHARED_ALIGNED(atomic_t, pool_nr_running[NR_STD_WORKER_POOLS]);
/*
* Global cpu workqueue and nr_running counter for unbound gcwq. The
@@ -444,14 +444,14 @@ static DEFINE_PER_CPU_SHARED_ALIGNED(atomic_t, pool_nr_running[NR_WORKER_POOLS])
* workers have WORKER_UNBOUND set.
*/
static struct global_cwq unbound_global_cwq;
-static atomic_t unbound_pool_nr_running[NR_WORKER_POOLS] = {
- [0 ... NR_WORKER_POOLS - 1] = ATOMIC_INIT(0), /* always 0 */
+static atomic_t unbound_pool_nr_running[NR_STD_WORKER_POOLS] = {
+ [0 ... NR_STD_WORKER_POOLS - 1] = ATOMIC_INIT(0), /* always 0 */
};
static int worker_thread(void *__worker);
static unsigned int work_cpu(struct work_struct *work);
-static int worker_pool_pri(struct worker_pool *pool)
+static int std_worker_pool_pri(struct worker_pool *pool)
{
return pool - pool->gcwq->pools;
}
@@ -467,7 +467,7 @@ static struct global_cwq *get_gcwq(unsigned int cpu)
static atomic_t *get_pool_nr_running(struct worker_pool *pool)
{
int cpu = pool->gcwq->cpu;
- int idx = worker_pool_pri(pool);
+ int idx = std_worker_pool_pri(pool);
if (cpu != WORK_CPU_UNBOUND)
return &per_cpu(pool_nr_running, cpu)[idx];
@@ -1688,7 +1688,7 @@ static void rebind_workers(struct global_cwq *gcwq)
* wq doesn't really matter but let's keep @worker->pool
* and @cwq->pool consistent for sanity.
*/
- if (worker_pool_pri(worker->pool))
+ if (std_worker_pool_pri(worker->pool))
wq = system_highpri_wq;
else
wq = system_wq;
@@ -1731,7 +1731,7 @@ static struct worker *alloc_worker(void)
static struct worker *create_worker(struct worker_pool *pool)
{
struct global_cwq *gcwq = pool->gcwq;
- const char *pri = worker_pool_pri(pool) ? "H" : "";
+ const char *pri = std_worker_pool_pri(pool) ? "H" : "";
struct worker *worker = NULL;
int id = -1;
@@ -1761,7 +1761,7 @@ static struct worker *create_worker(struct worker_pool *pool)
if (IS_ERR(worker->task))
goto fail;
- if (worker_pool_pri(pool))
+ if (std_worker_pool_pri(pool))
set_user_nice(worker->task, HIGHPRI_NICE_LEVEL);
/*